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M68HC16Z1EVB USER`S MANUAL

1. eo Beh need Tees Pav och t Phe Pee ond 2 12 2 3 10 D A Select Headers J15 J17 ene 2 12 24 INSTALLATION INSTRUCTIONS iis dosk de O Pat ae 2 13 2 4 1 Power Supply EVB Connection 8 2 13 2 4 2 Computer PC Printer Port Connection 9 2 13 2 4 3 Computer User Interface Port Connection P10 sees 2 14 2 4 4 Logic Analyzer EVB Connections 7 2 16 M68HC16Z1EVB D Rev 1 iii CONTENTS MOTOROLA CHAPTER 3 EVB16 OPERATING PROCEDURE ST INTRODUCTIONS e Ut heme k ea 3 1 3 1 1 Typeface and Parameter Conventions ite ce oie end UE Sedlo kile bje kata sa 3 1 3 1 2 EVB16 Numerical prve 3 2 3 2 STARTUP sina a RA e uid tdi edat n US i UAR elske 3 3 3 3 MAIN SCREEN diei ose esuada damn ea De Mm e See ado vd desir 3 4 Biden gt SEPUSWINdOW 3 4 3 3 2 Instruction Pointer IP Window 3 5 3 3 3 Breakpoint BR WIBdOW osito qnte eu s ec pa 3 5 aa Code Window Loses easy ton ue NI pdt e cies ee 3 5 325795 Memory an editos uus ayaa cao ee oe MESE Ld quu LE Ed 3 6 1077202005 WindOW sss sso enn ed tti tdi medendi tuat a E 3 6 3 3 7 Window Function a a obaro 3 6 S GENERAL SEL d de ae oa te ae bv qa RI MN Eua is uh e 3 7 3 57 DEBUG WINDOW COMMAND Sc siss etse der beet tr bises
2. HONG KONG Kwai Fong 852 6106888 Tai Po 852 6668333 INDIA Bangalore 91 80 5598615 ISRAEL Herzlia 972 9 590222 ITALY Milan 39 2 82201 JAPAN Fukuoka 81 92 725 7583 Gotanda 81 3 5487 8311 Nagoya 81 52 232 3500 Osaka 81 6 305 1802 Sendai 81 22 268 4333 Takamatsu 81 878 37 9972 Tokyo 81 3 3440 3311 KOREA Pusan 82 51 4635 035 Seoul 82 2 554 5118 MALAYSIA Penang 60 4 22825 14 MEXICO Mexico City 52 5 282 0230 Guadalajara 52 36 21 8977 PUERTO RICO San Juan 809 282 2300 SINGAPORE 65 4818188 SPAIN Madrid 34 1 457 8204 SWEDEN Solna 46 8 734 8800 SWITZERLAND Geneva 41 22 799 11 11 Zurich 41 1 730 4074 TAIWAN Taipei 886 2 717 7089 THAILAND Bangkok 66 2 254 4910 UNITED KINGDOM Aylesbury 441 296 395 252 UNITED STATES Phoenix AZ 1 800 441 2447 For a list of the Motorola sales offices and distributors http www mcu motsps com sale off html M68HC16Z1EVB D Rev 1 MOTOROLA HARDWARE PREPARATION AND INSTALLATION CHAPTER 2 HARDWARE PREPARATION AND INSTALLATION 2 1 INTRODUCTION This chapter provides unpacking instructions hardware preparation information and installation instructions for the EVB 2 2 UNPACKING INSTRUCTIONS NOTE Should the product arrive damaged save all packing material and contact the carrier s agent Unpack the EVB from its shipping carton Refer
3. 1990 1991 Rights Reserved Portions of the software are Borland International 1987 Portions of the software are TurboPower Software 1988 amp E Microcomputer Systems Inc PO Box 2044 Woburn MA 01888 2044 617 944 7585 MOTOROLA CONTENTS CONTENTS CHAPTER 1 GENERAL INFORMATION DI ANERODUGTON re A A ae e V akne a ova Ee dq 1 1 12 FEATURES adne a eir EM Ena zaba 1 1 13 SPECIFICATIONS soo a once A Ee AA ave 1 2 ha GENERAL DESCRIPTION isti saga Hood ana aa oj bja eni dlak 1 3 15 EQUIPMENT REQUIRED good teli ots 1 3 1 6 CUSTOMER SUPPORT iint ded ina rre wastes A Aa ced I ai 1 4 CHAPTER 2 HARDWARE PREPARATION AND INSTALLATION 23h INERODUGI ONE Nje ni at ay NON NO pe dt 2 1 2 2_ UNPACKING UNS DRUCTIONS eet inr me ee RE t RI 2 1 2 39 HARDWARE PREPARATION dades Z oa e dpa 2 1 2 3 1 RAM EPROM Select Headers J1 J4 esses enne 2 4 2 3 2 Memory Devices U1 U4 and Byte Word Select Header 5 2 6 2 3 3 P2 5 Volt Select Header J6 e nena 2 9 2 3 4 Memory Access Fault Prevention Header 77 2 9 2 3 5 P5 5 Volt Select Header 18 nana 2 10 2 3 6 Connect Header 19 2 10 2 3 7 TXD Connect Header JIO sanne een 2 11 2 3 8 Clock Select Headers J11 J12 114 2 11 2 3 9 Factory Test Header 13 ciet ettet
4. 3 7 36 SOURCE LEVEL DEBUGGING napisni napi e ate Pg ese nanan ates 3 23 S P WRACBBUBBER pM ba oljen eo i une siete trecenti quid estet 3 25 CHAPTER 4 MASM16 OPERATING PROCEDURE INDRODUCTION d pui nO tube S m Rat duode 4 1 ZI 2S ystem RECT CHIN INS Gai a A Ma Coe Sj te ad 4 1 Systenr Ner Ie ees nS CM UU 4 2 41 3 Getting Started 4 3 1 SMOTKEYS 4 4 4 5 Ad SETTINGOPTIONS AS AA NES ANNIE 4 8 do A NEM 4 10 20 SEDI VOR 4 11 2 6 2 Prompt EAU aN Do NI sd Ca eae 4 12 A A RE ARE RE Eo 4 12 4 6 4 Window Commands nei ae rotae o peso cu Va addu e Po sob Evo 4 13 45 5 Cursor Commands seio rn esed oi bes 4 14 4 6 6 Insert and Delete hi A Rd 4 17 4 6 7 Block Commands ng rr a 4 19 iv M68HC16Z1EVB D Rev 1 MOTOROLA CONTENTS CHAPTER 4 MASM16 OPERATING PROCEDURE continued 4 6 8 Miscellaneous Commands Credo da eed Qo o 4 21 46 81 The Find Command ee eni oh Mein rea leo eid Sov Enel dra 4 23 4 6 8 2 The Find and Replace 4 24 doo VRANE NM DIE Ron Rat Mist et ed dne es 4 25 A
5. During assembly EVB shows the instruction at the current location in the debug window To modify this instruction type in a new one To end the assembly session type a period at the prompt To advance to the next location without changing the present location enter a carriage return You may press the F10 help key to see the format of assembly language instructions gt ASM 10500 Start assembly at location 10500 10500 274c nop gt Shows disassembly prompts for input BF add add n Block fill memory with data add First parameter fill operation lower limit second parameter fill operation upper limit n Fill pattern This command repeats a specific byte value throughout a specified user memory range An invalid address leads to an error message You may use this command at the beginning of a debug session to initialize an area of memory or an array V BF C000 C030 FF Assign value FF to each byte C000 3 C030 V BF C000 C000 0 Assign value 0 to location C000 3 10 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE BR add Set or remove breakpoint add Address or label of breakpoint to be set or removed This command sets or removes the specified address in the breakpoint address table shown in the BR window Seven breakpoints may be active at any time Program execution halts at any instruction whose address is in the breakpoint address table The order of breakpoints in the BR wi
6. Rev 1 3 15 EVB16 OPERATING PROCEDURE MOTOROLA HELP LOAD LOADALL 3 16 Display help system This command an alternative to F10 activates the help system The files EVB16 HLP and EVB16 EXE must reside in the same directory for this command to work The help system works via temporary pop up windows Once these windows are activated use these keys to arrow keys move within a menu ENTER go to a chosen menu ESC go to a previous menu or exit PgDn go back one menu page PgUp go forward one menu page gt HELP Activate the help system Load S records This command loads object code into the EVB16 When you enter the LOAD command the system prompts for a file name Enter the name of the file that contains the object code If the file is not in the current directory enter the entire DOS path If you do not specify a file extension the system assumes the extension S19 Note that this command only loads a file it does not do a reset nor does it affect any CPU resources gt LOAD Load object code into the EVB16 Load S records and debug file This command loads an object file and a debug map file at the same time When you enter the LOADALL command the system prompts for a file name If the files are not in the current directory enter the entire DOS path The system assumes the file extensions S19 and Note that this command only loads the files it does not do a reset nor does it affect any
7. Ground from the EVB board 13 SLCT SELECT VCC or 5 Vdc power from the EVB board 14 17 Not used 18 25 GND GROUND 6 12 M68HC16Z1EVB D Rev 1 MOTOROLA SUPPORT INFORMATION Table 6 10 User Interface Port Connector P10 Pin Assignments Signal Pin Number Mnemonic Signal Name and Description 1 7 GND GROUND 2 TXD TRANSMIT DATA Serial data output line 3 RXD RECEIVE DATA Serial data input line 4 9 19 21 25 No connection 5 CTS CLEAR TO SEND Output signal that indicates ready to transfer data status 6 DSR DATA SET READY Output signal held high that indicates on line in service active status 8 DCD DATA CARRIER DETECT Output signal held high that indicates detection of an acceptable carrier signal 20 DTR DATA TERMINAL READY Output line that indicates on line in service active status Table 6 11 D A Conversion Power Connector P11 Pin Assignments Signal Pin Number Mnemonic Signal Name and Description 1 GND GROUND 2 7V 8 to 15 VDC POWER Input voltage for optional D A conversion M68HC16Z1EVB D Rev 1 6 13 SUPPORT INFORMATION MOTOROLA 6 14 M68HC16Z1EVB D Rev 1 MOTOROLA S RECORD INFORMATION APPENDIX A S RECORD INFORMATION A 1 INTRODUCTION The S record format for output modules encodes programs or data files in a printable format for transportation between computer Systems This facilitat
8. Indicates that the file has been modified since it last was saved M68HC16Z1EVB D Rev 1 MASM16 OPERATING PROCEDURE MOTOROLA 4 6 2 Prompt Editor Most editor user response prompts include default responses To accept a default response press lt CR gt To enter a specific response on the prompt line use the prompt editor The prompt editor has the same commands as the full assembler editor plus e Accept entry CR or CTRL2M e Abort ESC e Insert control character lt CTRL gt P 4 6 5 Tabs The editor has two kinds of tabs Smart tabs The default tabs these tabs echo the appearance of the preceding line The first character of any non space sequence acts as a tab stop for the next line The smart tab mode usually is the easiest tab mode for entering source code e Fixed tabs The stops for fixed tabs are column 9 and every 8th successive column To change from one tab type to the other enter the lt CTRL gt OT command For either smart or fixed tabs the editor automatically translates tabs to spaces When a file is read into the editor all tabs are expanded to the default settings 4 12 M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE 4 6 4 Window Commands As many as five windows may be open at any time But during assembly only one window may be open and this window must contain the file to be assembled Use the ALT key to access window commands
9. highlight it via the cursor keys then press lt CR gt Alternatively type the highlighted letter of the item for example E in Edit Choosing a menu item that has a submenu brings up the submenu Choose a submenu item in the same way you choose a menu item Press lt CR gt to toggle between two selection values For selections that require a string or other keyboard entry be sure to press lt CR gt at the end of the entry To go back to a previous menu or return to the editor press the ESC key one or more times Note that you must exit the menu system before entering any input text Table 4 2 MASM16 Menus Menu Submenu Edit none File Load Save Debug M68HC16Z1EVB D Rev 1 Choice Leaves the menu system returning you to the editor Loads a new file If you have changed the current file prompts you to save the file then asks for the name of the file to be loaded Same as hotkey F3 Saves the file currently in the editor makes a backup file and returns the cursor to its position before you selected Save Same as hotkey F2 Invokes EVB16 Same as hotkey Shift F4 4 5 MASM16 OPERATING PROCEDURE MOTOROLA Table 4 2 MASM16 Menus continued Menu File continued Assemble 4 6 Submenu Files Ouit Assemble Object Choice Shows the directory listing of all files that fit a specific pattern The user enters the pattern at the prompt or accepts the
10. A reset enables the watchdog timer gt WATCHDOG Disable watchdog timer WHEREIS symbol Show symbol value symbol or address This command echoes a specified label and displays its address Alternatively this command echoes a specified address and displays the label at that address gt WHEREIS start Show address of label start start 200 System echoes label and shows address gt WHEREIS 200 Show label at address 200 start 200 System echoes address and shows label 3 22 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE 3 6 SOURCE LEVEL DEBUGGING Loading a map file into the EVB via the LOADALL or LOADMAP command enables source level debugging If the IP points to a code location the code that appears in the code window is your actual source code If no map file is loaded or if the IP points outside source code the code window shows disassembled code MASM 16 creates map files during assembly as Chapter 4 explains The code window does not permit editing but does let you set and remove breakpoints The PC and IP values are highlighted in the code window To maneuver within the code window use the keys or key combinations of Table 3 4 Hold down the ALT key to see a list of code window commands at the bottom of the screen When you release the ALT key the bottom line reverts to its normal display Note that you may set breakpoints in any module In thi
11. INFORMATION 1 1 INTRODUCTION This manual provides general information hardware preparation installation instructions operating instructions functional description and support information for the M68HC16Z1EVB Evaluation Board EVB Appendix A contains EVB downloading S record information The EVB consists of the M68HC16Z1EVB printed circuit board PCB plus development software 1 2 FEATURES EVB features include An economical means of evaluating target systems incorporating MC68HC16Z1 HCMOS microcontroller unit MCU devices Background mode operation for detailed operation from a personal computer PC platform without an on board monitor Integrated assembly editing emulation environment for easy development As many as seven software breakpoints Memory map of your target system RS 232C terminal input output I O port Logic analyzer pod connectors M68HC16Z1EVB D Rev 1 1 1 GENERAL INFORMATION MOTOROLA 1 3 SPECIFICATIONS Table 1 1 lists EVB specifications Table 1 1 EVB Specifications Characteristic Specifications Internal Clock 16 78 MHz bus operation 32 kHz crystal controlled with on chip phase lock loop External Clock 25 50 kHz Pseudo ROM maximum memory EPROM 32 K bytes x 16 word 1 32 K bytes x 8 byte mode RAM 32 K bytes x 16 word mode 1 32 K bytes x 8 byte mode Data RAM maximum memory 64 K bytes 32 K bytes x 16 word mode 1 32 K bytes x 8 b
12. M68HC16Z1EVB D Rev 1 5 5 FUNCTIONAL DESCRIPTION MOTOROLA 5 6 M68HC16Z1EVB D Rev 1 MOTOROLA SUPPORT INFORMATION CHAPTER 6 SUPPORT INFORMATION 6 1 INTRODUCTION The tables of this chapter describe EVB connector signals 6 2 CONNECTOR SIGNAL DESCRIPTIONS Connectors PI through P7 connect a logic analyzer to the EVB Connector P8 connects external power to the EVB The EVB has two RS 232C I O ports connectors P9 and P10 to connect the EVB to a host computer Tables 6 1 through 6 10 list pin assignments for these connectors Table 6 1 Logic analyzer connector Table 6 2 Logic analyzer connector P2 Table 6 3 Logic analyzer connector Table 6 4 Logic analyzer connector P4 Table 6 5 Logic analyzer connector P5 Table 6 6 Logic analyzer connector P6 Table 6 7 Logic analyzer connector P7 Table 6 8 Input power connector P8 Table 6 9 PC printer port connector P9 Table 6 10 User interface port connector P10 Table 6 11 D A conversion power connector P11 The tables identify connector signals by pin number signal mnemonic and signal name and description M68HC16Z1EVB D Rev 1 6 1 SUPPORT INFORMATION MOTOROLA Table 6 1 Logic Analyzer Connector P1 Pin Assignments Signal Pin Number Mnemonic Signal Name and Description 1 5V 5 VDC POWER Input voltage 5 Vdc 1 0 A used by the EVB logic circuits 2 SPARE No connection 3 DSACK1 DATA AND SIZE
13. SPARE 4 SPARE HALT 6 AS TSTMETSC 6 RESET DS 7 BR CSO 7 8 BG CS1 9 10 CSBOOT PWMB 9 10 PWMA CLKOUT 11 112 A23 CS10 PAI 1119 12 IC4 OC5 A22 CS9 13 14 A21 CS8 OC4 13 e 14 OC3 A20 CS7 15 e 16 A19 CS6 OC2 15 e 16 OC A18 17 18 17 IC3 17 18 IC2 A16 19 20 GND IC1 19 20 GND 2 16 M68HC16Z1EVB D Rev 1 MOTOROLA HARDWARE PREPARATION AND INSTALLATION 5V CLKOUT BKPT DSCLK IPIPEO LATCHED IPIPEO DSO DSACK1 FC2 CS2 FCO CS3 SIZO BGACK CS2 SPARE VRHP AD6 AD4 AD2 ADO AN DAC2OUT SPARE AGND co 13 15 17 19 co 13 15 17 19 M68HC16Z1EVB D Rev 1 A N 12 14 16 18 20 A N 12 14 16 18 20 SPARE BERR FREEZE IPIPE1 LATCHED IPIPE1 DSI DSACKO FC1 CS4 SIZ1 R W GND SPARE VRLP AD7 AD5 AD3 AD1 AN DAC1OUT SPARE AGND 45V DS IRQ1 IRQ3 IRQ5 IRQ7 PCSO SS PCS2 SCK MOSI NO WO co 13 15 17 19 A N 12 14 16 18 20 SPARE MODCK IRQ2 IRQ4 IRQ6 TXD PCS1 PCS3 MISO GND 2 17 HARDWARE PREPARATION AND INSTALLATION MOTOROLA 2 18 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE CHAPTER 3 EVB16 OPERATING PROCEDURE 3 1 INTRODUCTION This chapter explains how to start and use EVB16 The e
14. TL kabelg tute delineata ta da i viis tud nus 4 25 4 7 2 OPEN SINE EME Doce tuf uoti drin Edu 4 26 47 3 T G21 06 S Re CPOE PRO JN A E EC CE 4 26 sole GOSTA ae PEN va PETE tao SEU ot AE 4 26 47 3 2 ene dan TUR TRUE 4 27 ZA ODIO S calde re e len bero Mina aii a ct ia lica 4 27 Ad Assembler Directives 2 ecrit ond Qd due Uo Tuo a Pak a QUUD aja 4 28 4 76 ANCE cH na kri a a o a jeta 4 32 TUE tenis a a Ne ei ae ota A EI RE EN TNO 4 32 4 7 8 Conditional Assembly ved cate dete atone R 4 33 CHAPTER 5 FUNCTIONAL DESCRIPTION oi INTROD USE IN SN 5 1 3 4 VE VBsDESCRIB IONI ena i uM Cad 5 1 5 2 1 MEU anid Control Circuits ai a A Onl pi aa ia 5 1 522 ee eet emo e oes 5 3 9 2 3 Terminal l O Bott ir eO eet D reo a edv ili 5 5 CHAPTER 6 SUPPORT INFORMATION 6 1 INTRODUCTION eret en P petia toin Ma PANI nee 6 1 6 2 CONNECTOR SIGNAL DESCRIPTIONS 5 etait I A oed pte ett rra be o eden oe 6 1 APPENDIXA S RECORD INFORMATION AL INTRODUCTION oes an etes pietati etat ener notet A 1 A2 SXRBECORD CONTENT ai RR ERO pb E RD NA Rte A uated eM iets 1 A3 S RBECORD TYPES inti b Dd ERO eni e ev bei kje 3 AA S RECORDICREA TION ana de dan e etas sea dae aste u
15. When you hold down the ALT key the help line at the bottom of the display shows the command options Table 4 4 explains the window commands Table 4 4 Editor Window Commands Next window ALT F1 Previous window ALT F2 Add window ALT F3 Resize window Close window M68HC16Z1EVB D Rev 1 Makes the next text window the current editing window Makes the previous text window the current editing window Opens another text window and prompts for a file to edit If you do not specify a file the editor creates the file NONAME ASM which you may save later as a named file If 5 windows already are open an error message appears If the active window is too small to divide in half to make room for the new window an error message appears Lets you change the size of the current window via the up and down arrow keys To return to the editor press lt CR gt If two or more windows are open closes the current window If one window is open closes the window and leaves MASM16 4 13 MASM16 OPERATING PROCEDURE MOTOROLA 4 6 5 Cursor Commands There are two ways to move the screen cursor via the cursor control keys or via control characters Table 4 5 explains the cursor commands Table 4 5 Editor Cursor Commands Command Keys Description Beginning of file lt CTRL gt PgUp Moves the cursor to the first character of the file or lt CTRL gt QR Beginning of line Home Move
16. and one S9 records S00600004844521B S1130000285F245F2212226A000424290008237C2A S11300100002000800082629001853812341001813 S113002041E900084E42234300182342000824A952 S113003000144ED492 S9030000FC The SO record consists of these character pairs so Type indicator SO identifying a header record 06 Hexadecimal value 06 indicating that six character pairs or ASCII bytes follow 00 Four character 2 byte address field zeros 00 48 ASCII D and HDR 44 52 1B Checksum of the SO record The explanation of the first 51 code data record is SI S record type S1 indicating a code data record to be loaded verified at a 2 byte address T3 Hexadecimal 13 indicating that 19 character pairs representing 19 bytes of binary data follow 00 Four character 2 byte address field hexadecimal 00 address COOC where the following data is to be loaded M68HC16Z1EVB D Rev 1 MOTOROLA S RECORD INFORMATION The next 16 character pairs of the first S1 record are the ASCII bytes of the actual program code data 2A The checksum of the first SI record The second and third S1 records each also contain 13 19 character pairs These records end with checksums 13 and 52 respectively The fourth S1 record contains 07 character pairs and has a checksum of 92 The explanation of the S9 termination record is S9 S record type S9 indicating that it is a termination record 03 Hexadecimal 03 indicating that
17. default pattern of the prompt by pressing lt CR gt The original default pattern is asm which specifies all files of the current directory that have the extension ASM To load a file from the listing position the cursor on the filename and press lt CR gt Exits MASM16 or the current window Same as hotkey F5 Assembles the file currently in the editor any options chosen from the menu system will be in effect Same as hotkey F4 Only one window may be open during assembly Toggles between ON and OFF indicating whether to create an object S19 file during assembly Creating an object file increases assembly time Listing X reference Toggles between ON and OFF indicating whether to create a listing LST file during assembly Creating a listing file increases assembly time Toggles between ON and OFF indicating whether to create a cross reference list of variables used Toggles between ON and OFF indicating whether Symbols to create a symbol table Header list Toggles between ON and OFF indicating whether to put a header on the listing file Direct page Toggles between ON and OFF indicating whether Base default to allow direct page addressing Toggles between 10 and 16 indicating the default number base M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE Table 4 2 MASM16 Menus continued Menu Submenu Choice Options Chip Specifies the
18. executable instruction an assembler directive a macro definition or a macro call A source statement contains as many as four fields in this order label operation operand comment Paragraphs 4 7 1 through 4 7 4 explains these fields 4 7 1 Labels Labels identify memory locations in program or memory areas of the assembly module You may define labels for all instructions you also may define labels for directives that allocate and optionally initialize data Labels have values usually that of the location counter for the instruction or directive If a label memory location is in a relocatable section the label value is relative to that program section otherwise the label value is absolute A label if present must start in column 1 A label consists of one or more characters provided it fits on one line A label must start with a letter either upper or lower case or an underscore The second and subsequent characters may be letters digits dollar signs periods or underscores You may add a colon to the end of a label but this is optional a space suffices Examples of labels are Label ThisIsALabel Loop 1 NOTE In addition to user defined labels the assembler recognizes external labels and reserved register identifiers For more information see the assembler user s manual M68HC16Z1EVB D Rev 1 4 25 MASM16 OPERATING PROCEDURE MOTOROLA 4 7 2 Operations An operation is an instruction
19. help system F2 Save Saves the file currently in the editor makes a backup file and returns the cursor to its position before you pressed this key F3 Load Loads a new file If you have changed the current file prompts you to save the file then asks for the name of the file to be loaded F4 Assemble Assembles the file currently in the editor any options chosen from the menu system will be in effect This hotkey function is the same as the Assemble submenu selection Only one window may be open during assembly Shift Invokes the EVB16 debugger F4 1 F5 Exit Ends the editing assembling session You may save any changes to the current file before returning to DOS If more than one window is open this key closes the current window F7 Error Positions the cursor at the line containing the next error the assembler found in the current file ed Positions the cursor at the line containing the previous error the F7 1 assembler found in the current file DOS shell Puts you into DOS Typing EXIT at the DOS prompt returns you to MASM16 F10 Brings up the menu system on the bottom line of the screen 1 Hold down the Shift key and press the F4 or F7 key The screen does not show these hotkey combinations 4 4 M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDU RE 4 3 MENU SYSTEM To activate the menu system press the F10 hotkey selections appear at the bottom of the screen To choose a menu item
20. is FEQ FLAGI FLAGI 0 LDD 1 LOAD ERROR INDICATOR 1 STD ERRORI STORE IN ERROR ENDC END CONDITIONAL ASSEMBLY The assembler evaluates two string expressions by seeing if the strings match If the string expressions match assembly of the block of source code takes place Otherwise the assembler skips over the block of source code For more information on conditional assembly see the ToolWare M68HC16 Macro Assembler User s Manual for MS DOS M68HCASM D2 M68HC16Z1EVB D Rev 1 4 33 MASM16 OPERATING PROCEDURE MOTOROLA 4 34 M68HC16Z1EVB D Rev 1 MOTOROLA FUNCTIONAL DESCRIPTION CHAPTER 5 FUNCTIONAL DESCRIPTION 5 1 INTRODUCTION This chapter is an overall description of the EVB including a block diagram Figure 5 1 of circuits This chapter also includes a memory map diagram Figure 5 2 5 2 EVB DESCRIPTION The EVB uses its resident MC68HC16Z1 MCU to evaluate operation of a user developed circuit based on an M068H016Z1 MCU The EVB16 software package allows modification of user memory and execution of user programs Figure 5 1 is a block diagram of EVB functionality The EVB has these functional circuits e MCU and control e User memory e Host computer I O port e Logic analyzer pods e Data conversion circuitry 5 2 1 MCU and Control Circuits The EVB contains a resident MC68HC16Z1 MCU and a
21. mnemonic a directive name or a macro mnemonic An instruction mnemonic is a standard factory opcode A directive is an instruction to the assembler not something to be translated into object code Paragraph 4 7 5 gives more information about directives A macro mnemonic 1s a user defined identifier If present an operation may not begin in column 1 If the operation follows a label a space must separate the label and the operation 4 7 3 Operands Operands are numeric constants ASCII literals or absolute symbols as defined by the opcode If present an operand must follow an operation a space must separate the operation and the operand An operand may even be an expression containing arithmetic logic or shift operators The assembler evaluates such an expression during assembly Operands may not contain embedded spaces 4 7 3 1 Constants Numeric constants may be in any of four bases Qualifier prefixes for binary octal decimal and hexadecimal are and respectively For example 10010111 9227 1151 97 The default base is decimal if you enter a number value without a prefix the assembler treats it as decimal A command line option lets you make the default base hexadecimal To use one or more ASCII characters as a constant enclose them in single or double quotes 4 26 M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE 4 7 3 2 Operators During assembly the assembler
22. points the way to the code to be debugged EVB16 bw Starts program specifies black and whitemode M68HC16Z1EVB D Rev 1 3 3 EVB16 OPERATING PROCEDURE MOTOROLA 3 3 MAIN SCREEN Figure 3 1 shows the main screen which consists of seven windows the CPU window the instruction pointer IP window the breakpoint BR window the code window the program F6 memory window the data F3 memory window and the debug F1 window CPU A 00 SP 00000 B 08 PC 00206 D 0008 K 0000 E 023F PK 0 IX OFFB7 SK IY OFEFD HR FFFF IZ 00400 IR 0078 AM 071DFFFFF SMHENZVC210S PK 1111100111110000 CODE PR FA00020E JSR INIT 37BC0250 LDX STRING FA00023E JSR SEND STRING BOFZ BRA LOOP F50F LDAB F 27FA TBEK F500 LDAB 0 379C TBXK RTS PROGRAM ammmmeme DATA DMM n 00100 00 00 00 O4 00 00 00 20 ga 00 00 10 20 00 00 04 00 00108 00 02 00 00 00 00 00008 00 00 00 08 00 26 DO amp 00 00 00 00 00 00 00 00010 00 00 80 01 00 00 00 OO 00 00 00 00 00 21 00 00018 00 00 00 00 OO 00 SD P DERUG F1 Previous reset caused by external hardware or debugger CPU16 just reset by debugger gt 1 200 Source not available for this module gt Fl Debug F2 Code F3 F6 Mem F4 Step F5 Zoom F7 Trace F8 DOS F9 Repeat F10 Hel 3 3 1 CPU Window The CPU window at the upper left of the main scr
23. sure that the devices at locations U2 and U4 are identical both RAM both type 27C256 EPROMs or both type 27C512 EPROMs M68HC16Z1EVB D Rev 1 HARDWARE PREPARATION AND INSTALLATION 27C256 270512 J2 U2 U4 EPROM 1 EPROM FABRICATED JUMPERS CONFIGURATION FOR RAMS FACTORY CONFIGURATION J1 27C256 27C512 1 2 3 J4 4 2 3 J2 4 u2 U2 U2 U4 U4 RAM EPROM 1 RAM EPROM 9 7 FABRICATED JUMPERS CONFIGURATION FOR 27C256 EPROMS J1 5 27C256 27C512 ht J2 U2 U2 U4 RAM EPROM EPROM J3 FABRICATED JUMPERS CONFIGURATION FOR 27C512 EPROMS Figure 2 2 RAM EPROM Select Header Configurations M68HC16Z1EVB D Rev 1 2 5 HARDWARE PREPARATION AND INSTALLATION MOTOROLA 2 3 2 2 6 Memory Devices U1 U4 and Byte Word Select Header J5 Board locations Ul through U4 are the EVB memory array Locations Ul and U3 are for RAM devices and locations U2 and U4 are for either RAM or EPROM devices as paragraph 2 3 1 explains The sockets of all four devices accept memory devices of two widths either 0 300 mil or 0 600 mil DIP devices The U1 and U2 sockets have three rows of holes To use a narrow device at U1 or U2 insert the device into the left two rows of socket holes To use a wide device at Ul or 02 insert the device into the outer two rows of holes In addition to accommodating either narrow or wide devices the U3 and U4 sockets permit memory configuration as either byte or word
24. the TOC4 TOC1 comparator registers contain the same values 17 19 IC3 IC1 INPUT CAPTURE 3 1 Input signals that latch the contents of the GPT timer counter into input capture registers TIC3 TIC1 when a selected edge occurs at a pin 20 GND GROUND 6 6 M68HC16Z1EVB D Rev 1 MOTOROLA SUPPORT INFORMATION Table 6 5 Logic Analyzer Connector P5 Pin Assignments Signal Pin Number Mnemonic Signal Name and Description 1 5V 5 VDC POWER Input voltage 5 Vdc 1 0 A used by the EVB logic circuits 2 SPARE No connection 3 CLKOUT SYSTEM CLOCK OUT Output signal that is the MCU internal system clock 4 BERR BUS ERROR Active low signal that indicates the attempt of an erroneous bus operation 5 BKPT BREAKPOINT Active low input signal that puts the CPU16 in background debug mode DSCLK DEVELOPMENT SYSTEM CLOCK Serial input clock for background debug mode 6 FREEZE FREEZE Signal that indicates CPU breakpoint acknowledgement or background mode entry 7 8 IPIPEO IPIPE1 INSTRUCTION PIPE 0 1 LATCHED Active low LATCHED latched output signals that track movement of words through the instruction pipeline 9 10 IPIPEO 1 DSO INSTRUCTION PIPE 0 1 DEVELOPMENT SERIAL DSI OUT IN Serial data output and input signals for background debug mode 11 12 DSACK1 DATA AND SIZE ACKNOWLEDGE 1 0 Active low DSACKO input signals that allow asynchronous data transfers and dyn
25. to the EVB terminal port connector A null modem adapter reverses the roles of various data and control signals to make a DTE device appear as a DCE device or vice versa GND TXD RXD RTS CTS DSR SIGNAL GND DCD DB 25S DB 25P Connector P10 Null Modem Adapter M68HC16Z1EVB D Rev 1 GND TXD RXD RTS CTS SIGNAL GND DCD DTR 2 15 HARDWARE PREPARATION AND INSTALLATION MOTOROLA 2 4 4 Logic Analyzer E VB Connections P1 P7 Use logic analyzer connectors P1 through P7 to connect the EVB to the circuit being evaluated For signal descriptions refer to chapter 6 The EVB area of extra holes next to connectors P1 through P7 gives the user space for 10 pin Berg type strips To use such strips install them on the bottom of the board and solder the pins on the top Wire wrap from the bottom of the EVB to the user wire wrap area Be sure to put standoffs in the corner mounting holes to protect the wire wrapping on the bottom of the EVB P1 P2 45V 1 e 2 SPARE 45V 1 e 2 SPARE DSACK1 4 15 AS 3 015 14 6 A13 014 6 013 12 7 8 11 012 7 011 A10 9 10 A9 Dio 9 e e 10 D9 A8 11 12 A7 D8 11 12 D7 A6 13 14 A5 06 13 14 D5 A4 15 16 04 15 16 D3 A2 17 18 Al D2 17 18 D1 AO 19 20 GND DO 19 o 20 GND P3 P4 SPARE 1 2 SPARE SPARE 1 2 SPARE DSACKO 4 AVEC
26. 1 and J14 M68HC16Z1EVB D Rev 1 2 11 HARDWARE PREPARATION AND INSTALLATION MOTOROLA 2 3 9 Factory Test Header J13 If a jumper header is at board location J13 it is for factory use there may be no jumper header at all Do not use a fabricated jumper or make any other connections at board location J13 J13 CUT TRACE SHORT ON BOTTOM OF BOARD CAUTION Do not change the factory configuration of board location J13 In particular do not apply external power to pin 1 of location J13 doing so could cause damage to the external power supply 2 3 10 D A Select Headers J15 J17 The factory configuration of jumper headers J15 through J17 is no fabricated jumpers as shown below This is correct when there is no D A data conversion J15 J16 17 For optional D A data conversion via user supplied 56 device in EVB location U12 install fabricated jumpers in headers J15 J16 and J17 These jumpers connect the SCK PCS SS and MOSI lines respectively If a PCM56P device is installed at location U12 removing the jumpers from headers J15 through J17 removes the PCM56P device from the EVB circuitry 2 12 M68HC16Z1EVB D Rev 1 MOTOROLA HARDWARE PREPARATION AND INSTALLATION 2 4 INSTALLATION INSTRUCTIONS The EVB is designed for table top operation A user supplied power supply and host computer are reguired The computer must have a Centronics compatible parallel port an
27. 6 table Start F6 window display at label table M68HC16Z1EVB D Rev 1 3 17 EVB16 OPERATING PROCEDURE MOTOROLA NOBR Remove all breakpoints This command removes all the addresses from the breakpoint address table shown in the BR window gt NOBR Remove all breakpoints PMM X add n n Modify memory in program space X Program space units bytes W words and L long words add Program space address or label to receive data value n Data to be entered This command writes the specified data into program space at the specified address Consecutive data values separated by spaces go into consecutive units defined by the X parameter The default unit is the byte If the command line does not specify data the software prompts for data one unit at a time Such prompts include the memory location and current value To change the value enter the new value To advance to the next location without changing the present location press CR To exit this command enter a period or other nonsense value gt PMM 100 1 2 3 4 Put values 1 4 into locations 100 103 gt PMM 200 Start interactive memory modification 200 lt 41 gt Shows current value prompts for new one QUIT Exit the program This command is an alternative form of the EXIT command RESET Do a hardware reset This command does an EVB hardware reset to the reset vector address in the 68HC16 device gt RESET Reset hard
28. 6 window memory display NOBR Remove all breakpoints 3 8 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE Table 3 3 Debug Window Commands continued Syntax PMM X add n QUIT RESET SHOWF3 add SHOWF6 add SIGNLATCH n SOURCE SOURCEPATH ST n STEP n STEPFOR STEPTIL add SYMBOL chars val T n TRACE add add VERIFY WATCHDOG WHEREIS symbol M68HC16Z1EVB D Rev 1 Meaning Modify memory in program space Exit the program Do a hardware reset Set F3 window memory display Set F6 window memory display Set sign latch to n Toggle code display Search for code in another directory Do single step trace Do single step trace Do single step trace until breakpoint Do single step until add Add symbol to loaded map file Do single step trace Execute trace Compare file to memory Disable watchdog timer Show symbol value 3 9 EVB16 OPERATING PROCEDURE MOTOROLA ASM add Assemble into pseudo ROM add Starting address or label for assembly This command invokes the one line assembler starting at the specified address If this command does not include an address assembly starts at the address used by the previous ASM command This assembler assembles user code including labels provided that the labels are in a previously loaded map file If no map file is loaded labels may not be used The ASM command does not define labels Your entry must start with an opcode
29. 7 Pin Assignments Signal Pin Number Mnemonic Signal Name and Description 1 10V 10 VOLTS Power supplied from the MC145407 device total power for RS 232 port plus wire wrap use Per data sheet typical supply is 9 at 10 ma 2 10V 10 VOLTS Power supplied from the MC 145407 device total power for RS 232 port plus wire wrap use Per data sheet typical supply is 8 6 Vdc at 10 ma 3 VRHP VOLTAGE REFERENCE HIGH Input reference supply voltage high line 4 VLRP VOLTAGE REFERENCE LOW Input reference supply voltage low line 5 12 AD7 ADO ANALOG INPUTS 7 0 Analog input lines to the HC16 device 13 15 17 18 SPARE No connection 16 DAC1OUT D A OUTPUT 1 Analog output of the D A converter of the PCM56P 012 19 20 AGND ANALOG GROUND Table 6 8 Input Power Connector P8 Pin Assignments Signal Pin Number Mnemonic Signal Name and Description 1 GND GROUND 2 45V 5 VDC POWER Input voltage 5 Vdc 1 0 A used by the EVB logic circuits M68HC16Z1EVB D Rev 1 6 11 SUPPORT INFORMATION MOTOROLA Table 6 9 PC Printer Port Connector P9 Pin Assignments Signal Pin Number Mnemonic Signal Name and Description 1 qo Not used 10 ACK ACKNOWLEDGE Active low signal to the computer that the printer received the data 11 BUSY BUSY Signal to the computer that the printer is busy 12 PE PAPER END
30. A13 Jumper header J5 set to byte passes line A14 to header J4 and line A15 to header J3 Header J3 set to 27C512 passes line A15 to header J4 Header J4 set to EPROM passes lines Al4 and A15 to the memory device This completes the 16 address lines AO A15 that the device needs If the 27C512 EFROM device is in the word mode position the U4 socket directly provides address lines Al through A14 Jumper header J5 set to word passes line A15 to header J4 and line Al6 to header J3 Header J3 set to 27C512 passes line A16 to header J4 Header J4 set to EPROM passes lines A15 and A16 to the memory device This completes the 16 address lines A1 A16 that the device needs Tables 2 1 and 2 2 list pin signals and data bus sizes respectively for different configurations of the EVB memory array NOTES Although the EVB provides proper byte or word mode signals to memory devices the EVB does not select the data port size The default data port size at power up is 16 bits for the CSBOOT pseudo ROM control signal At device reset an internal pull up of the data 0 DO signal again sets the data port size to 16 bits To select an 8 bit data port size the user must pull the DO signal low at device reset The data HAM at locations U1 and U3 uses chip selects The user can program these chip selects for proper data bus sizing M68HC16Z1EVB D Rev 1 2 7 HARDWARE PREPARATION AND INSTALLATION MOTOROLA 2 8 Tab
31. ACKNOWLEDGE 1 Active low input signal that allows asynchronous data transfers and dynamic bus sizing between the MCU and external devices 4 19 A15 A0 ADDRESSES Bits 15 0 Three state output address bus 20 GND GROUND Table 6 2 Logic Analyzer Connector P2 Pin Assignments Signal Pin Number Mnemonic Signal Name and Description 1 5V 5 VDC POWER Input voltage 5 Vdc 1 0 A used by the EVB logic circuits 2 SPARE No connection 3 ADDRESS STROBE Active low output signal that indicates whether a valid address is on the address bus 4 19 D15 DO DATA BUS Bits 15 0 Buffered bi directional data bus lines 20 GND GROUND 6 2 M68HC16Z1EVB D Rev 1 MOTOROLA SUPPORT INFORMATION Table 6 3 Logic Analyzer Connector P3 Pin Assignments 3 DSACKO 4 AVEC 5 HALT 8 BR 9 BG M68HC16Z1EVB D Rev 1 Signal Pin Number Mnemonic Signal Name and Description 1 2 SPARE No connection DATA AND SIZE ACKNOWLEDGE O Active low input signal that allows asynchronous data transfers and dynamic bus sizing between the MCU and external devices AUTOVECTOR Active low input signal that requests an automatic vector during an interrupt acknowledge cycle HALT Active low input output signal that suspends external bus activity for single step operation or used with the BERR signal to request a retry ADDRESS STROBE Active low output signal tha
32. C Space TTL Provide Table 4 9 Directive FDB Form Double Byte Memory Bytes mer Generated Error LIST NOLIST Between Lines Title in Listing PAGE Assembler Directives continued Syntax and Function lt FDB lt expression gt lt expression Defines a word constant in a memory block for each lt expression gt Each lt expression gt can be a value or a symbol or expression the assembler evaluates Eguivalent to the DC W directive lt RMB lt count gt Allocates a block of memory lt count gt bytes long Eguivalent to the DS B directive FAIL lt arg gt lt string gt With no lt arg gt value aborts the assembly If the lt arg gt value is less than 500 the assembler issues the lt string gt message with the directive line number then completes assembly without writing an object file Otherwise the assembler issues the lt string gt message with the directive line number then aborts the assembly LIST Prints the assembly listing until an END or NOLIST directive NOLIST or NOL Suppresses printing the assembly listing until a LIST directive SPC lt count Inserts lt count blank lines in the assembly listing TTL lt title gt Prints the title at the start of the listing file If used this directive must be the first source code line A title is a character string enclosed in quotes PAGE Advances to the top of the next pa
33. CPU resources MASM16 creates map files during assembly as Chapter 4 explains gt LOADALL Load object code and map file M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE LOADMAP LPT x MDF3 add MDF6 add Load MASM debug file This command loads a debug map file into the EVB16 When you enter the LOADMAP command the system prompts for a file name Enter the name of the file that contains the map file If the file is not in the current directory enter the entire DOS path If you do not specify a file extension the system assumes the extension MASMIO creates map files during assembly as Chapter 4 explains gt LOADMAP Load map file into the EVB16 Specify printer port x Number of printer port 1 2 or 3 1 is the default This command specifies the DOS printer port to use gt LPT2 Use printer port LPT2 Set F3 window memory display add Starting address or label for code in the window This command resets the display of the F3 screen window to show code starting at the specified address gt MDF3 200 Start F3 window display with address 200 gt MDF3 myarray Start F3 window display at label myarray Set F6 window memory display add Starting address or label for code in the window This command resets the display of the F6 screen window to show code starting at the specified address gt MDF6 8000 Start F6 window display with address 8000 gt MDF
34. Commiands escono eade see eai te au 4 14 4 6 Editor Insert and Delete Commands ane 4 17 4 1 Editor Block Commands s o i aaa quise eie inte Sues ea k cond NR ednine US 4 19 4 5 Editor Miscellaneous Commands sija se 4 21 qeu PRS SETI MITTS CEL WC iji pua RODA 4 28 6 1 Logic Analyzer Connector P1 Pin Assignments eese ene 6 2 6 2 Logic Analyzer Connector P2 Pin 1 6 2 6 3 Logic Analyzer Connector Pin Assignments essen 6 3 6 4 Logic Analyzer Connector P4 Pin Assignments essere 6 5 6 5 Logic Analyzer Connector P5 Pin Assignments essen 6 7 6 6 Logic Analyzer Connector Pin 6 9 6 7 Logic Analyzer Connector P7 Pin Assignments eese 6 11 6 8 Input Power Connector P8 Pin Assignments essen nennen 6 11 6 9 PC Printer Port Connector P9 Pin Assignments sees nennen 6 12 6 10 User Interface Port Connector P10 Pin Assignments eene 6 13 6 11 D A Conversion Power Connector P11 Pin Assignments 6 13 Pelz S Re orad Field Composition s eere ER ood tua ee xeu eoa ia serae acre eget A 2 222 S Record Types occisi ve RD Rada n i eel en RHEIN A 3 vi M68HC16Z1EVB D Rev 1 MOTOROLA GENERAL INFORMATION CHAPTER 1 GENERAL
35. D signal from the U8 device carefully cut the J9 trace on the bottom of the board Subsequently to reconnect the RXD signal insert a fabricated jumper in header J9 2 10 M68HC16Z1EVB D Rev 1 MOTOROLA HARDWARE PREPARATION AND INSTALLATION 2 3 7 TXD Connect Header J10 The cut trace short of jumper header J10 below connects the TXD signal of the HC16 device to the RS 232 driver device at board location U8 J10 CUT TRACE SHORT ON BOTTOM OF BOARD To disconnect the TXD signal from the U8 device carefully cut the J10 trace on the bottom of the board Subsequently to reconnect the TXD signal insert a fabricated jumper in header J10 2 3 8 Clock Select Headers J11 J12 J14 The cut trace shorts of jumper headers J11 and J14 and no fabricated jumper in jumper header J12 select the on board crystal clock source This 32 kHz crystal provides for 16 78 MHz bus operation J11 J12 1 2 1 2 1 J14 CUT TRACE SHORT ON BOTTOM OF BOARD To use an external clock source instead carefully cut the J11 and J14 traces on the bottom of the board and insert a fabricated jumper in header J12 Apply the external clock signal to pin 1 of header J11 The frequency of the external cock signal can be from 25 to 50 KHz Subsequently to reinstate the on board crystal clock source remove the external clock signal from header J11 remove the fabricated jumper from header J12 and insert fabricated jumpers in headers J1
36. Diagram M68HC16Z1EVB D Rev 1 HARDWARE PREPARATION AND INSTALLATION MOTOROLA 2 3 1 2 4 RAM EPROM Select Headers J1 J4 The top of Figure 2 2 shows the factory configuration of jumper headers J1 through J4 The fabricated jumpers between pins 1 and 2 and pins 4 and 5 of headers J1 and J4 configure the EVB for RAM devices at locations U2 and U4 If headers J1 and J4 are configured in this way the jumper configuration of headers J2 and J3 does not matter That is fabricated jumpers may be absent from or in any position of headers J2 and J3 To use type 27C256 EPROM devices at locations U2 and U4 instead of RAMs reposition the fabricated jumpers of headers JI and J4 between pins 2 and 3 and between pins 5 and 6 Additionally install fabricated jumpers between pins and 2 of both jumper header J2 and jumper header J3 The middle of Figure 2 2 shows this configuration To use type 27C512 EPROM devices at locations U2 and U4 instead of either RAMs 27C256 reposition the fabricated jumpers of headers JI and J4 between pins 2 and 3 and between pins 5 and 6 Additionally install fabricated jumpers between pins 2 and 3 of both jumper header J2 and jumper header J3 The bottom of Figure 2 2 shows this configuration NOTES The factory supplied RAMS at locations U2 and U4 are for use only as pseudo ROM Place variable storage and stack areas in internal RAM or in RAMs at locations U1 and U3 Make
37. M68HC16Z1EVB D Rev 1 April 1998 M68HC16Z1EVB USER S MANUAL MOTOROLA INC 1991 1998 All Rights Reserved Motorola reserves the right to make changes without further notice to any products herein to improve reliability function or design Motorola does not assume any liability arising out of the application or use of any product or circuit described herein neither does it convey any license under its patent rights nor the rights of others Motorola products are not designed intended or authorized for use as components in systems intended for surgical implant into the body or other applications intended to support or sustain life or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur Should Buyer purchase or use Motorola products for any such unintended or unauthorized application Buyer shall indemnify and hold Motorola and its officers employees subsidiaries affiliates and distributors harmless against all claims costs damages and expenses and reasonable attorney fees arising out of directly or indirectly any claim of personal injury or death associated with such unintended or unauthorized use even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part IBM PC is a registered trademark of International Business Machines Corp EVB16 and the PAL firmware are O P amp E Microcomputer Systems Inc
38. ROLA MASM16 OPERATING PROCEDURE 4 6 8 Miscellaneous Commands Table 4 8 explains the remaining editor commands Table 4 8 Editor Miscellaneous Commands Abort ESC Halts an operation in progress The editor regularly checks the keyboard buffer for the abort command If it finds one the editor empties the buffer and stops the operation Exit editor ALT X Exits to DOS If an editor file has been modified a prompt asks whether to save the file If you respond yes the editor saves the file before exiting to DOS Exit editor automatic lt CTRL gt KD Exits the editor saving the current file If an save original file exists this command renames it FILENAME BAK lt CTRL gt QF Searches for a string as long as 67 characters globally backwards within the current block or ignoring case See text immediately following this table for more details of the find command Find and replace lt CTRL gt QA Searches for a string and replaces it with another string See text immediately following this table for more details of the find and replace command Find next lt CTRL gt L Repeats the last find or find and replace command M68HC16Z1EVB D Rev 1 4 21 MASM16 OPERATING PROCEDURE MOTOROLA Table 4 8 Editor Miscellaneous Commands continued Save to file lt CTRL gt KN Set undo limit lt CTRL gt JU Toggle autoindent lt CTRL gt QI lt CTRL gt QT Toggle fixed tabs 4 22 Description U
39. The editor highlights defined blocks but you may change this display via the hide block command Block commands work only with non hidden fully defined blocks Table 4 7 explains the block commands Begin block Copy block Delete block End block Hide block M68HC16Z1EVB D Rev 1 Keys lt CTRL gt KB lt CTRL gt KC lt CTRL gt KY lt CTRL gt KK or F8 lt CTRL gt KH Table 4 7 Editor Block Commands Description Sets the invisible block begin marker so you can return the cursor to the position at any time via the lt CTRL gt QB command If a block end marker already is set this command also highlights the block Copies a marked and displayed block placing the copy at the cursor position Markers move to the copied block the original block is not affected Deletes a marked and displayed block The undo last deletion lt CTRL gt QU command usually can restore portions of a block accidentally deleted but there is no command to restore a deleted block completely Sets the invisible block end marker so you can return the cursor to the position at any time via the lt CTRL gt QK command If a block begin marker already is set this command also highlights the block Turns highlighting on or off for a displayed block without affecting the markers 4 19 MASM16 OPERATING PROCEDURE MOTOROLA Table 4 7 Editor Block Commands continued Mark single word Move block Pri
40. addressable To handle this byte mode or word mode these sockets have six rows of holes To configure a narrow memory device at location U3 or U4 for byte mode insert the device into rows 1 and 3 the A position To configure a narrow memory device at location U3 or U4 for word mode insert the device into rows 2 and 4 the B position A wide device follows the same pattern socket hole rows 1 and 5 byte mode A position or rows 2 and 6 word mode B position Printing on the EVB guides device placement Jumper header J5 must be configured correctly for the memory device at location U4 Header J5 selects the top address lines of the U4 memory device Fabricated jumpers between pins 1 and 2 and 4 and 5 as the drawing below shows is correct for a U4 memory device in word mode position J5 If the U4 device is in the byte mode position reposition the U5 jumpers to pins 2 and 3 and 5 and 6 Note that jumper headers J3 and J4 also affect address and control signals for the device at location U4 Header J3 selects the signal on pin 1 of the memory only if header J4 is configured for EPROM Header J4 selects the signal for pins and 27 of the memory M68HC16Z1EVB D Rev 1 MOTOROLA HARDWARE PREPARATION AND INSTALLATION As an example consider a 27C512 EPROM 64K x 8 installed at location U4 This device reguires 16 address lines If the device is in the byte mode position the U4 socket directly provides lines AO through
41. amic bus sizing between the MCU and external devices M68HC16Z1EVB D Rev 1 6 7 SUPPORT INFORMATION MOTOROLA 6 8 Table 6 5 Logic Analyzer Connector P5 Pin Assignments continued Signal Pin Number Mnemonic Signal Name and Description 13 15 FC2 CS5 FUNCTION CODES 2 0 Three state output FC1 CS4 signals that identify the processor state and address FCO CS3 space of the current bus cycle CHIP SELECTS 5 3 Output signals that select peripheral or memory devices at programmed addresses 16 17 SIZ1 SIZO TRANSFER SIZE Active high output signals that indicate the number of bytes still to be transferred during this cycle 18 R W READ WRITE Active high output signal that indicates the direction of data transfer on the bus 19 BGACK BUS GRANT ACKNOWLEDGE Active low input signal that indicates that an external device has assumed control of the bus CS2 CHIP SELECT 2 Output signal that selects peripheral or memory devices at programmed addresses 20 GND GROUND M68HC16Z1EVB D Rev 1 MOTOROLA SUPPORT INFORMATION Table 6 6 Logic Analyzer Connector P6 Pin Assignments Pin Number Signal Mnemonic Signal Name and Description 5V 5 VDC POWER Input voltage 5 Vdc 1 0 A used by the EVB logic circuits 5 11 12 IRQ1 IRQ7 TXD No connection DATA STROBE Active low output signal During a read cycle indicates tha
42. bits and gives additional information about the memory map User program space either is pseudo ROM RAM or is configured for ROM EPROM All programs must be ROMable to protect against program errors that otherwise would overwrite the program space As shipped from the factory the EVB contains RAM in board locations U2 and U4 These devices are 32K x 8 configured as 32K x 16 NOTE RAM space at board locations U2 and U4 is pseudo ROM controlled by the CSBOOT chip select lines Motorola recommends using these devices for program storage only EVB internal RAM is byte accessible so you may use it for stack and temporary locations Table 2 2 explains the different ways to access memory devices M68HC16Z1EVB D Rev 1 5 3 FUNCTIONAL DESCRIPTION MOTOROLA 5 4 00000 EXCEPTION VECTORS 001FF 00200 PROGRAM amp DATA SPACE 7FFFF FF700 ANALOG DIGITAL CONVERTER ADC FF73F FF900 GENERAL PURPOSE TIMER GPT FF93F SYSTEM INTEGRATION MODULE SIM FFA7F FFBOO STANDBY RAM FFBO7 FFCOO QUEUED SERIAL MODULE QSM FFDFF Figure 5 2 HC16Z1 Memory Map M68HC16Z1EVB D Rev 1 MOTOROLA FUNCTIONAL DESCRIPTION 5 2 3 Terminal I O Port The terminal I O port connector P1O connects to the on chip SCI port via an MC145407 level translation device To use this connector refer to the HC16Z1 technical summary or user s manual for proper setup of baud rates and data terminals
43. can be a value or a symbol or expression the assembler evaluates Values for lt size gt are B W or L byte word or longword B is the default lt DCB lt size gt lt count gt lt value gt Allocates one or more memory blocks initialized with lt value gt Values for lt size gt are B W or L byte word or longword B is the default Value of count must be greater than zero count times lt size gt determines the block length lt labeb DS lt size gt lt count gt Reserves memory locations without initializing them Values for lt size gt are B W or L byte word or longword B is the default Value of lt count gt must be greater than zero lt count times lt size gt determines the number of locations reserved lt labeb BSZ count Allocates a block of memory count bytes long set to zero lt abeb FCB lt expression gt lt expression gt Defines a byte constant in a memory block for each lt expression gt Each lt expression gt can be a value or a symbol or expression the assembler evaluates Equivalent to the DC B directive lt labeb FCC lt string gt Allocates and initializes a byte for each character of lt string gt Equivalent to the DC B directive with an ASCII string operand 4 29 MASM16 OPERATING PROCEDURE MOTOROLA Class Data Definition or Allocation continued Listing Control RMB Reserve FAIL Program SP
44. command STEPFOR Do single step trace until breakpoint This command begins continuous single step tracing from the IP value This single stepping continues until it arrives at a breakpoint until there is an error condition or until the user presses a key The processor does not run at full execution speed during a STEPFOR command gt STEPFOR Single step trace from IP until breakpoint STEPTIL add Do single step until add add The trace stopping address or label This command starts single step tracing from the IP value to the specified address or label To stop such tracing press any key gt STEPTIL subl Single step trace from IP to label subl 3 20 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE SYMBOL chars val Add symbol to loaded map file chars ASCII characters of the new symbol label val The new symbol value This command adds the specified label to the symbol table giving it the specified value The symbol table contains as many as 30 user defined labels gt SYMBOL start 200 Defines the label start 200 T n Do single step trace This command is an alternative form of the ST command TRACE add add Execute trace add First parameter execution starting address or label second parameter breakpoint address or label This command starts and stops tracing according to the specified add parameters e If the command has two parameter values the system sets a new b
45. d must run MS DOS The following paragraphs explain EVB connections 2 4 1 Power Supply EVB Connection P8 The EVB requires a 5 Vdc 1 0 Amp power supply for basic operation Use connector P8 to connect this system power to the EVB Contact 1 is GND black lever Contact 2 is VDD 5 Vdc red lever Use 20 or 22 AWG wire for power connections For each wire trim back the insulation 1 4 in 635 cm lift the appropriate lever of P8 to release tension on the contacts then insert the bare wire into P8 and close the lever CAUTION Do not use wire larger than 20 AWG in connector P8 Such wire could damage the connector NOTE D A conversion via an optional Burr Brown 56 device requires a user supplied connector at location P11 This connector location accommodates user supplied power of 7 Vdc or less 2 4 Computer PC Printer Port Connection P9 Connect the EVB to the host computer via a user supplied 25 conductor cable assembly One end of the cable assembly needs a female DB25 connector this end of the cable connects to the EVB PC printer port connector P9 The other end of the cable assembly needs a male DB25 connector this end of the cable connects to the Centronics compatible port of the computer For connector pin assignments and signal descriptions of connector P9 refer to Chapter 6 M68HC16Z1EVB D Rev 1 2 13 HARDWARE PREPARATION AND INSTALLATION MOTOROLA 2 4 5 Computer User Inte
46. dd n Assign data to RAM X RAM units B bytes W words and L long words add RAM address or label to receive data value n Data to be entered This command writes the specified data into RAM at the specified address Consecutive data values separated by spaces go into consecutive memory units defined by the X parameter The default memory unit is the byte If the command line does not specify data the software prompts for data one memory unit at a time Such prompts include the memory location and current value To change the value enter the new value To advance to the next location without changing the present location press lt CR gt To exit this command enter a period or other nonsense value gt DMM 100 1 2 3 4 Put values 1 4 into locations 100 103 gt DMM B 200 Start interactive memory modification in bytes 200 lt 41 gt Shows current value prompts for new one 3 12 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE EVAL n op n Evaluate expression n First parameter Expression or first term to be evaluated third parameter second term to be evaluated op Operator This command evaluates an arithmetic expression giving the result in hexadecimal decimal octal and binary values The expression can contain the operators for addition subtraction multiplication and division and Single spaces must separate parameter values g
47. din A 4 AS SSSRBECORD EXAMPLE siue e SERIE DARUM abd A A 4 M68HC16Z1EVB D Rev 1 V CONTENTS MOTOROLA FIGURES 2 1 Jumper Header and Connector Location Diagram 2 33 2 2 RAM EPROM Select Header Configurations eese nennen 2 5 EVBI 6 Main om adeo d a adipi fatte Posee foo Nf O 3 4 5 1 gt HOTOZIBEVB Block Diagrami o ub sa sees nase vasa he i deiade EN DN NOU Tes 5 2 5 2 HCTOZT Memory Map uai uper Met ed DU eL 5 4 TABLES IJI EV B S poe CANON nae os pie rie GNO RISUS Die paio eu a dst Dot uua rH a eM IS 1 2 2 1 Memory Device Pin 1 ensem ea aea gnare esae Le Ina ea asa eu ce Pavlek 2 8 2 2 Memory Device Pin Signals edo ee ASA panike Bde eee 2 8 Sele EV BO Number nanena tata uomen op Mq ier aio SERO SEE MEM PEE 3 2 3 2 EVB16 Special oie t eee ea ea to Uo Eae eh poena EH Pn Cet a RUE DN Ve 3 6 3 3 Debug Window Commands tes died Eel eae deu ees pini 3 8 3 4 Code Window Commands Di e p dte smit lee ta qi pra 3 24 HOCK ey i gubi bi Ra one S A eco debebat ipea o deen 4 4 4 2 MASMI MENU notorie tapez qd tee oec aute ceci usen geje ota duas ipsius 4 5 4 3 Edit Window Status Line Information 4 1 4 4 Editor Window COTATI acies n dip Ue e ott e Pu e Eon dU E QU 4 13 4 52 Editor Cursor
48. do limit command The find command as well as the find and replace command needs additional explanation When you enter the find command the status line clears and a prompt asks for the search string as long as 67 characters If you have used this command before the prompt includes the most recent search string To select the same search string press lt CR gt To edit or replace the search string use these commands Backspace lt CTRL gt R lt CTRL gt S lt CTRL gt D ESC lt CTRL gt P M68HC16Z1EVB D Rev 1 Deletes the character to the left Restores the previous string Moves cursor left Moves cursor right Cancels the command Enters a control character 4 23 MASM16 OPERATING PROCEDURE MOTOROLA After you enter the search string a prompt asks for options The editor displays any options of the most recent search you may use them again or edit them Search options are B Backwards search from cursor position Global search from start of file or from end of file for a backwards search L Search only currently marked block U Treat all characters as upper case When you specify options the search begins If a matching pattern is found the cursor appears at the end of the pattern 4 6 8 2 The Find and Replace Command This command is similar to the find command However after you specify the search string this command prompts for a replacement string Like the search string the
49. e value with or to offset the target line number from the current line Moves the cursor to one of nine previously set invisible markers Moves the cursor down one line may scroll the Screen Moves the cursor up one line may scroll the Screen Moves the cursor down one page with a single line of overlap Moves the cursor up one page with a single line of overlap Moves the cursor to its previous position very useful after a save find or find and replace Scrolls the screen down one line The cursor does not change lines until it hits the top of the Screen 4 15 MASM16 OPERATING PROCEDURE MOTOROLA Table 4 5 Editor Cursor Commands continued Scroll up Set marker 0 9 Top of block Word left Word right 4 16 Keys lt CTRL gt W CTRL KO lt CTRL gt K9 lt CTRL gt QB lt CTRL gt Home or lt CTRL gt QE CTRL Left arrow or lt CTRL gt E lt CTRL gt Right arrow or lt CTRL gt F Description Scrolls the screen up one line The cursor does not change lines until it hits the bottom of the screen Sets one of nine invisible markers at the current cursor position Moves the cursor to the block begin marker set via the lt CTRL gt KB command This command works even if there is no block end marker or if the block is hidden Moves the cursor to the top line on the screen Moves the cursor to the beginning of the word to the left may move across a
50. een shows the status of CPU resources Use the debug window to change any register value in the CPU window enter the resource a space and the new value To change the value of the AM register you must specify the high order 20 bits AMH or the low order 16 bits AML You may change individual bits in the condition code register by specifying the bit and entering the value 0 or 1 3 4 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE 3 3 2 Instruction Pointer IP Window The IP window at the top center of the main screen shows the value of the instruction pointer which the EVB16 software uses to designate the instruction to be executed next Note that the IP value always is six bytes less than the program counter PC value Use the debug window to change the IP value enter IP a space and the new value NOTE The IP is not a CPU resource because it does not exist in the part 3 3 3 Breakpoint BR Window The BR window below the IP window lists the addresses of active breakpoints As many as seven breakpoints may be active at once their addresses are not in any particular order in the BR window Use the debug window to add a breakpoint enter BR a space and the new address value To remove a breakpoint make the same entry but enter an address value from the BR window To remove all breakpoints enter NOBR in the debug window Using the GOTIL or STEPTIL command creates a temporary breakpoint no
51. es S record editing and permits visual monitoring of the transportation process A 2 S RECORD CONTENT S records are character strings of five fields record type record length memory address code data and checksum Each byte of binary data is encoded as a two character hexadecimal number the first character represents the high order four bits and the second character represents the low order four bits of the byte The diagram below shows the S record layout Table A 1 shows the composition of each field There are three possible terminators for an S record CR LF and NULL Additionally an S record may have an optional initial field to accommodate such other data as line numbers generated by sometime sharing systems An S record file is a normal ASCII text file in the operating system in which it resides The record length byte count and checksum fields ensure accuracy of transmission M68HC16Z1EVB D Rev 1 A 1 S RECORD INFORMATION MOTOROLA Table A 1 S Record Field Composition Printable Field Characters Contents Type 2 S record type SC S1 etc Record length 2 Number of character pairs in the record excluding type and record length pairs Address 4 6 or S The 3 or 4 byte address at which the data field is to be loaded into memory Code data O n From C to n bytes of executable code memory loadable data or descriptive information For compatibility with teletypewriters some programs may l
52. evaluates expressions containing any of these operators addition subtraction or unary minus multiplication division truncated integer result exponentiation gt gt or gt right shift or left shift amp or logical and or logical or xor X logical exclusive or ones complement PAGE lower 4 bits of operand are page number force byte value gt force word value The assembler evaluates expressions using this order of precedence unary minus e shift e and or e exponentiation e multiplication division e addition subtraction For operators of equal precedence the assembler evaluates expressions from left to right Use parentheses to change the order of evaluation if necessary 4 7 4 Comments Comments in a program clarify program flow and the purpose of statements Except for including comments in the assembly listing the assembler ignores comments A semicolon delineates comments which may start in any column and go until the end of the line An asterisk or semicolon in column 1 makes the entire line a comment M68HC16Z1EVB D Rev 1 4 27 MASM16 OPERATING PROCEDURE MOTOROLA 4 7 5 Assembler Directives Directives are instructions to the assembler not statements to be translated into object code Table 4 9 lists these directives Note from the syntax that directives may not start in column 1 labels must start in column 1 For complete information see t
53. f the HC16 device to location U8 Jumper header J10 connects the TXD signal of the HC16 device to location U8 Jumper headers J11 J12 and J14 determine whether the EVB uses the on board crystal clock source or an external clock source Jumper header J13 is for factory use And jumper headers J15 through J17 connect OSPI signals to an optional D A conversion device at location U12 Locations U1 through U4 are the EVB memory array Sockets at these locations accommodate a variety of memory devices EVB circuitry lets the user configure two memory devices as either byte addressable or word addressable This lets the user evaluate an HC16 device with an 8 bit RAM EPPOM system Paragraph 2 3 2 explains memory configuration NOTE Many of the EVB jumper headers have cut trace shorts for their factory configuration For the alternate functionality of such a jumper header carefully cut the trace on the bottom of the board To restore the original functionality after a trace has been cut insert a fabricated jumper the jumper header M68HC16Z1EVB D Rev 1 MOTOROLA HARDWARE PREPARATION AND INSTALLATION DIE SEE ERASE HESS gt ASSESS 22 2 HN SENSN 2 ENSURE RS 222738222 STS POITE TITTET muB 20412221112222214 3555 i mE PIT Figure 2 1 Jumper Header and Connector Location
54. file set the OFF value Listing Set the ON value to create a listing file You must enter a path and listing file name via the Listing file option To assemble without creating a listing file set the OFF value X reference Set the ON value to create a cross reference list of variables uses To assemble without creating this list set the OFF value Symbols Set the ON value to create a symbol table To assemble without creating this table set the OFF value Header list Set the ON value to print a header on the listing file You must set the Listing option to ON you must specify header contents via the Header option To assemble without putting a header on any listing file set the OFF value Direct page Set the ON value for direct page addressing mode To assemble without this mode set the OFF value Base default Set the 16 value for hexadecimal default number base Set the 10 value for decimal default number base M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE From the Options menu select values for these options Listing file Specify the path and name of the listing file if the Listing option is set to ON Object file Specify the path and name of the object file if the Object option is set to ON Error limit Enter the maximum number of errors 1 999 the assembler will detect before it halts assembly Header Specify header contents if the Listin
55. g and Header list options are set to ON Path to MASM Specify the name of the DOS directory that contains files MASM EXE and HEX EXE Debugger cmd Specify the path filename and parameters of the debugger such as EVB16 Save options Select this option to save the current values that is to make them apply to subsequent files as well as to a file assembled immediately The file MASMI6 CON is the storage location for option values you save so it should be in the current directory when you execute MASM 16 If this file is not in that same directory 16 defaults to standard values M68HC16Z1EVB D Rev 1 4 9 MASM16 OPERATING PROCEDURE MOTOROLA 4 5 HELP To bring up the MASM16 help system press the F1 key from within the editor or press the H key from the menu system The initial help window shows a list of topics Use the arrow keys to highlight a topic then press CR the help information appears For example select INSTRUCTION SET to see the full list of factory opcode mnemonics A PgDn indicator at the bottom of the window means that there are two or more pages of help information on the topic Use the page down and page up keys to scroll through the information Press the ESC key one or more times to step out of the help system 4 10 M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE 4 6 EDITOR The editor lets you type in text via the keyboard Ne
56. ge M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE Class continued Listing Control Table 4 9 Assembler Directives continued Directive NOPAGE Suppress Pagination LLEN Line Length PLEN Page Length TABS Tab Stop Multiple M68HC16Z1EVB D Rev 1 Syntax and Function NOPAGE Lists program lines continuously without headings or top or bottom margins lt n gt Sets the number of characters per line to lt n gt The maximum value of n 132 also is the default value PLEN lt n gt Sets the number of lines per page to lt n gt The maximum value of n 65 also is the default value TABS n Sets to lt n gt the tab stop multiple the number of spaces between tab stops The default value of n is 8 4 81 MASM16 OPERATING PROCEDURE MOTOROLA 4 7 6 Include When the assembler encounters the INCLUDE directive it takes source code from the specified file This continues until the end of the specified file or until the assembler encounters another INCLUDE directive If the assembler reaches the end of the specified file it continues taking source code from the file that contained the INCLUDE directive The file specification must be in quotes single or double If the file is not in the current directory the specification must be a full path name An example of an INCLUDE directive is INCLUDE equates reg
57. gnal Pin Number Mnemonic Signal Name and Description 1 4 SPARE No connection 5 TSTME TEST MODE ENABLE Hardware enable for test mode an active low input signal TSC THREE STATE CONTROL When 10 volts twice the VDD this input signal forces all output drivers to a high impedance state 6 RESET RESET Active low system reset signal 7 RXD RECEIVE DATA Serial data input line 8 PCLK AUXILIARY TIMER CLOCK INPUT External input clock source for the general purpose timer GPT 9 PWMB PULSE WIDTH MODULATION B Repetitive output signal the CPU can control the high time low time ratio of this signal 10 PWMA PULSE WIDTH MODULATION A Repetitive output signal the CPU can control the high time low time ratio of this signal 11 PAI PULSE ACCUMULATOR INPUT Input signal that increments an 8 bit counter 12 INPUT CAPTURE 4 Programmable input signal that latches the contents of the GPT timer counter into the input capture register T1405 when a selected edge occurs at the pin OUTPUT COMPARE 5 Programmable output signal generated when the GPT timer counter and the TI405 comparator register contain the same value M68HC16Z1EVB D Rev 1 6 5 SUPPORT INFORMATION MOTOROLA Table 6 4 Logic Analyzer Connector P4 Pin Assignments continued Signal Pin Number Mnemonic Signal Name and Description 13 16 OC4 OC1 OUTPUT COMPARE 4 1 Selected edge output signals generated when the GPT timer counter and
58. he ToolWare M68HC16 Macro Assembler User s Manual for MS DOS M68HCASM D2 Table 4 9 Assembler Directives Class Directive Syntax and Function Assembly EVEN EVEN Control Forces the instruction or data allocation to the next even address INCLUDE INCLUDE lt file spec gt Inserts the specified file in the source input stream ORG Origin ORG lt expression gt Fills the object file to the location counter lt expression gt specifies END END Terminates assembly by indicating the end of source code Label EQU Equate lt EQU lt expression gt Definition Assigns the lt expression gt value to the lt abeb exclusively SET lt label gt SET lt expression gt Assigns the lt expression gt value to the lt label but permits redefinition of the lt by subsequent SET directives in the program 4 28 M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE Class Data Definition or Allocation Table 4 9 Assembler Directives continued Directive DC Define Constant DCB Define Constant Block DS Define Storage BSZ Block Set to Zero FCB Form Constant Byte FCC Form Character String Constant M68HC16Z1EVB D Rev 1 Syntax and Function lt labeb DC lt size gt lt expression gt lt expression gt Defines a constant in a memory block for each lt expression gt Each lt expression gt
59. imit the number of bytes to as few as 28 of 56 printable characters in the S record Checksum 2 The least significant byte of the one s complement of the sum of the values represented by the pairs of characters making up the records length address and the code data fields A 2 M68HC16Z1EVB D Rev 1 MOTOROLA S RECORD INFORMATION A 3 S RECORD TYPES SO S1 82 83 SI SS 59 Type A record containing code data and the S byte address at which the code data is to reside A termination record for a block of 53 records The address field may optionally contain the A termination record for a block of S2 records The address field may optionally contain the A termination record for a block of S1 records The address field may optionally contain the There are eight types of S records to accommodate the various needs of the encoding transportation and decoding functions The various Motorola upload download and other record transportation control programs as well as cross assemblers linkers and other file creating or debugging programs use only the S record types that serve the purpose of the program For specific information on which S records a particular program supports consult the user manual for that program EVBI S supports the S record types listed in Table A 2 Table A 2 S Record Types Description The header record for each block of S records The code data field may contain any descrip
60. ion at label start break at label timel G 1050 Start code execution at address 1050 gt G start Start code execution at label start gt G Start code execution at IP value GO add add Go execute program This command is an alternative form of the G command 3 14 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE GOTIL add Go from IP to add add Address or label of temporary breakpoint This command inserts a temporary breakpoint at the specified address and starts execution of code at the IP value Code execution stops when it reaches the temporary breakpoint or an existing breakpoint This command works only with program code in RAM or pseudo ROM To debug code in ROM use the GOTILROM command The processor runs at full execution speed during a GOTIL command gt GOTIL subl Execute code from IP value to label subl gt GOTIL 1055 Execute code from IP to address 1055 GOTILROM add Single step fast to add add ROM address or label of temporary breakpoint This command starts rapid single stepping through code beginning at the IP value Single stepping stops at the specified breakpoint address or label This command is the fastest way to reach a breakpoint in ROM The processor does not run at full execution speed during a GOTILROM command gt GOTILROM subl Single step through code from IP value to label subl gt GOTILROM 1055 Execute code from IP to address 1055 M68HC16Z1EVB D
61. ister h 4 7 7 Macros The assembler supports macros named sets of instructions If a source code statement contains a macro name in the operation field the assembler invokes the macro This means that the assembler generates source code statements then assembles these statements A macro can include conditionally assembled instructions A macro can include variable operands each time such a macro is used in a file it has different parameter values A simple macro definition is SAVEL MACRO LDX SAVET LDAA NI STAA 0 X SAVE 1ST ARGUMENT LDAA 2 STAA 1 X SAVE 2ND ARGUMENT LDAA 3 STAA 2 X SAVE 3RD ARGUMENT ENDM A calling statement for this macro is SAVEL ARG1 ARG2 ARG3 For more information on defining and using macros see the ToolWare M68HC16 Macro Assembler User s Manual for MS DOS M68HCASM D2 4 32 M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE 4 7 8 Conditional Assembly The assembler lets you specify blocks of source code to be assembled according to the values of one or two specified expressions This is conditional assembly The assembler evaluates a single expression by comparing its value to zero If the value relates to zero in the way the conditional assembly instruction specifies assembly of the block of source code takes place Otherwise the assembler skips over the block of source code A simple example of such conditional assembly
62. le 2 1 Memory Device Pin Signals Available Device and Data Address Chip Write Configuration Signals Signals Select Enable Pseudo ROM U2 D0 D7 A1 A16 CSBOOT R W U4 A byte 08 015 A0 A15 CSBOOT R W U4 B word D8 D15 A1 A16 CSBOOT R W DATA RAM U1 00 07 1 16 CS2 CS1 U3 A byte 08 015 0 15 CS2 50 U3 B word D8 D15 A1 A16 CS2 CS0 Table 2 2 Memory Device Pin Signals Word 16 Bits Byte 8 Bits Device and Word Byte Word Byte Configuration Memory Memory Memory Memory Access Access Access Access Pseudo ROM U2 Read write Read N A N A U4 A byte N A N A Read write Read write U4 B word Read write Read N A N A DATA RAM U1 Read write Read write N A N A U3 A byte N A N A Read write Read write U3 B word Read write Read write N A N A 1 For a byte write the HC16 places the data byte on both halves of the data bus This writes a word into the pseudo RQM memories possibly causing an unexpected error 2 To accomplish this program the chip selects before accessing memory M68HC16Z1EVB D Rev 1 MOTOROLA HARDWARE PREPARATION AND INSTALLATION 2 3 3 PI P2 5 Volt Select Header J6 The cut trace short of jumper header 36 below gives 5 volt power to pins of logic analyzer connectors P1 and P2 J6 CUT TRACE SHORT ON BOTTOM OF BOARD If you do not want this functionality carefully cut
63. line break Moves the cursor to the beginning of the word to the right may move across a line break M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE 4 6 6 Insert and Delete Commands Table 4 6 explains the commands for inserting and deleting characters words and lines Table 4 6 Editor Insert and Delete Commands Command Keys Description Delete character left Backspace Moves the cursor left one position deleting the or character at that position Following characters lt CTRL gt H of the line also move left one position If the cursor starts in column 1 this command joins the line to the preceding one Delete current Del Deletes the character at the cursor position character or Following characters of the line move left one lt CTRL gt G position This command does not cross line breaks Delete line lt CTRL gt Y Deletes the line containing the cursor Following lines move up one and the cursor moves to column 1 of the next line A line deleted via this command cannot be restored Delete to end of line lt CTRL gt QY Deletes all characters from the cursor position to the end of the line Delete word lt CTRL gt T Deletes the word to the right of the cursor This command works across line breaks and can be used to remove line breaks Insert control lt CTRL gt P Lets you insert editor control characters in the character text For example lt CTRL gt P followed by l
64. loaded into the EVB16 debugger To start the MASM16 environment bringing up the editing screen type the command line gt MASM16 filename where filename is an optional file name to be loaded into the editor immediately Note that the editor gives all file names the default extension ASM If you do not enter a file name the editor starts with the blank file NONAME ASM when you later save this file the editor prompts for a name change The top line of the editing screen is the prompt line The prompt line displays commands being executed and asks for user responses Immediately below the prompt line are status indications for the file being edited file name cursor position and mode indications Paragraph 4 6 1 explains these status indications The first control level for MASMI6 functions are the hotkeys explained in paragraph 4 2 Hotkey labels are at the bottom of the editing screen The first time you start MASMI6 default control options apply these defaults are appropriate for a tutorial test assembly program To set defaults for an actual program follow the guidance of paragraph 4 4 M68HC16Z1EVB D Rev 1 4 3 MASM16 OPERATING PROCEDURE MOTOROLA 4 2 HOTKEYS Hotkey labels appear at the bottom of the editing screen the first screen that appears when you activate MASM16 Table 4 1 explains the functions of these keys Table 4 1 MASM16 Hotkeys ev posorinlen Brings up the
65. ly language source statements into object code The assembler also assigns storage locations to instructions and data and verifies programs syntactical correctness For complete details of the assembler see the separate user s manual T0o WareTM M68HC16 Macro Assembler User s Manual for MS DOS M68HCASM D2 In this chapter lt CR gt indicates the ENTER RETURN or carriage return key of your keyboard 4 1 1 System Requirements Your system must run under MS DOS or PC DOS on an IBM PC XT AT or compatible computer and must have at least 640 K bytes of system memory To print from within MASM16 use the standard DOS printer port M68HC16Z1EVB D Rev 1 4 1 MASM16 OPERATING PROCEDURE MOTOROLA 4 1 2 System Overview MASMI6 is an integrated environment for writing editing assembling and debugging source code Write source code statements in assembly language a symbolic language of e Instruction directive and register mnemonics e User defined memory labels and macros e Numbers binary octal decimal or hexadecimal notation e Special purpose characters MASM 16 lets you convert the source code into three kinds of output files e Object files machine language for the target processor An object file has the same name as the source file but with the file extension S19 e Listing files copies of input text with machine code addresses and other such annotations Map files files used by si
66. mulators user interfaces and other such software Starting assembly via the MASMI6 shell always creates a map file To control MASM 16 functionality you press hotkeys make selections from various menus and enter assembler directives When assembly begins MASM16 in DOS memory swaps itself into EMS memory or to disk as a temporary file This makes the most RAM possible available for assembling your program In addition to creating object listing and map files assembly includes creating files MASM16 ERR which holds errors and warnings and MASM16 CMD which holds the DOS string that invokes the assembler At the end of successful assembly MASMI6 swaps itself back to DOS memory and deletes the temporary files NOTE If no EMS or disk memory is available you cannot shell to either the assembler or the EVB16 debugger To use either you must leave 16 then invoke the assembler or the debugger from the DOS prompt 4 2 M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE 4 1 3 Getting Started For the environment to work properly four files must reside in your working directory or on your DOS path e MASM16 EXE the main file the number 16 corresponds with the M68HC16 cross assembler type MASM16 HLP the on screen help file needed only if you plan to use the built in help system e MASM EXE the M68HC16 assembler HEX EXE the S record generator creates S19 files to be
67. ndoes any changes to the line that contains the cursor If the cursor has left the line this command does not work Prompts for a file name then saves the file in the current window to the specified file This becomes the new file in the current window This is particularly useful for NONAME ASM files Sets the size of the undo buffer which stores deleted lines The default value is 40 lines Displays the current version of the assembler Enables or disables autoindent When autoindent is enabled CR or lt CTRL gt M jumps to the next line to the column of the first non blank character of the current line ndent shows on the status line Enables fixed tabs or smart tabs When fixed tabs are enabled Tab shows on the status line M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE Table 4 8 Editor Miscellaneous Commands continued Toggle insert mode Undo last deletion 4 6 8 1 The Find Command Keys Description Insert Enables insert mode or overwrite mode In insert or mode existing text moves right as new text is lt CTRL gt V entered and nsert shows in the status line In overwrite mode new text replaces existing text lt CTRL gt QU Restores lines deleted via the delete or delete line command This command does not restore single characters or words To undo changes to the current line use the restore line command To specify the size of the undo buffer use the set un
68. ndow you may scroll or see future code F3 Go to the F3 memory window In this window you may scroll through data memory F4 Do a single step trace This key has the same role as the ST command Shrink or enlarge the code window if it displays source code F6 Go to the F6 memory window In this window you may scroll through code memory F7 Go to the code window as a trace window In this format of the code window you may scroll through the trace buffer Repeat the last command Activate the help window 3 6 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE 3 4 GENERAL USE Do most of your debugging from the debug window You may enter all debug commands in this window Typically the first command a user enters is one of the load commands If you have created an object S19 file as well as a map MAP file via the MASM16 assembler shell enter the LOADALL command gt LOADALL Brings your code and symbols into EVB16 Filename In response to the filename prompt enter the name of the file Next if you have loaded appropriate reset vectors for the code enter a reset command this resets the hardware and initializes the IP and PC correctly gt RESET Resets the hardware The code window shows your code either via disassembly or via your actual source At this point you may start debugging To have the F3 or F6 memory windows display code starting at a useful addre
69. ndow has no effect on their operation For a temporary additional breakpoint in RAM or pseudo ROM use the GOTIL or STEPTIL command For such a breakpoint in ROM use the GOTILROM command gt BR 200 Set breakpoint at address 200 gt BR startl Set breakpoint at label startl BW Change display to black and white mode This command puts the display in black and white mode Use this command if the default color display is hard to read for example if you use a lap top computer You also may use this command at the command line that starts the program This action may be taken only once following a hardware reset There is no command to return to color mode gt BW Put display in black and white mode CLEARMAP Remove source level debug information This command clears the previously loaded map file from EVB16 software This eliminates symbols and eliminates source code debugging The code window defaults to simple disassembly gt CLEARMAP Delete the current map information M68HC16Z1EVB D Rev 1 3 11 EVB16 OPERATING PROCEDURE MOTOROLA CODE add Show disassembled code in code window add Starting address or label for disassembled code This command is an alternative to serolling in the code window After execution of any instruction the code window reverts to showing IP and PC values gt CODE 10300 Show code starting at address 10300 gt CODE subl Show code starting at label subl DMM X a
70. nt block Read block from file Write block to file 4 20 Keys lt CTRL gt KT lt CTRL gt KV lt CTRL gt KP lt CTRL gt KR lt CTRL gt KW Description Marks as a block the word that contains the cursor or the word to the left of the cursor This single command puts block begin and block end markers around the word Moves a marked and displayed block to the cursor position Markers remain with the block Prints the selected block To cancel this command press the ESC key Reads an entire file into the text stream at the current cursor position marking the file as a block The editor prompts for a filename if you already have used this command the prompt includes the previous filename Press lt CR gt to accept the previous filename change the previous filename via the backspace key or enter a new name The filename may include a drive or path identifiers To cancel this command press the ESC key Copies a marked and displayed block to a file without changing the block or its markers The editor prompts for a filename do not use the BAK extension which is reserved for editor backup files If the filename exists another prompt asks whether to overwrite the file If you respond no N you can enter a new filename change the displayed filename via the backspace key or cancel the command via the ESC key This command has no effect if no block is specified M68HC16Z1EVB D Rev 1 MOTO
71. own the ALT key to see a list of code window commands at the bottom of the screen When you release the ALT key the bottom line reverts to its normal display 3 24 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE 3 7 TRACE BUFFER The trace buffer is a software function of EVB16 There is no hardware trace capability in the board To turn on the trace function enter the trace command gt TRACE Enable tracing During tracing the processor actually single steps All screen refreshes are disabled so tracing happens as rapidly as possible The only information requested from the CPU between steps is the PC value This information is stored in a circular 1024K buffer in EVB16 To view the trace press the F7 key The code window display changes to show a disassembly of the addresses in the trace buffer Use the arrow keys to scroll through the buffer NOTES The trace buffer shows disassembled code not source code using labels whenever possible Tracing through self modifying code does not work properly as the trace shows disassembly of the current memory contents M68HC16Z1EVB D Rev 1 3 25 EVB16 OPERATING PROCEDURE MOTOROLA 3 26 M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE CHAPTER 4 MASM16 OPERATING PROCEDURE 4 1 INTRODUCTION This chapter covers 5 16 the user interface shell to the EVB macro assembler The assembler translates assemb
72. reakpoint at the second address or label then traces code from the first address or label Tracing continues until it arrives at a breakpoint which could be the one just set or until the user presses a key e If the command has one parameter value the system traces code from that address or label until it arrives at an existing breakpoint or until the user presses a key e If the command has no parameter values the system traces code from the IP value until it arrives at an existing breakpoint or until the user presses a key This command fills the trace buffer so does not execute in real time gt TRACE 200 1050 Start code trace at address 200 break at address 1050 gt TRACE 1050 Start code trace at address 1050 gt TRACE start Start code trace at label start gt TRACE Start code trace at IP value M68HC16Z1EVB D Rev 1 3 21 EVB16 OPERATING PROCEDURE MOTOROLA VERIFY Compare file to memory This command compares contents of a file with contents of EBV16 memory When you enter the VERIFY command the system prompts for a file name If the file is not in the current directory enter the entire DOS path The compare action ends when the system finds a difference between contents or at the end of the file gt VERIFY Verify contents of file and memory WATCHDOG Disable watchdog timer This command disables the watchdog timer This action may be taken only once following a hardware reset
73. replacement string may be as long as 67 characters The prompt includes the replacement string if any from a previous use of this command You may accept edit or replace the replacement string just as you can the search string After you specify the search and replacement strings the option prompt appears ALI the find command options are available plus one more N Replace without a prompt When you specify options the search begins If the search finds a matching pattern and the N option is not in effect a prompt requests confirmation that you want the replacement Respond Y replace N skip or A replace this and all subsequent matches without prompts If you specify the N option replacement of the search string happens without any confirmation prompts The screen does not update until all file updates are done To abort a find and replace operation press Q or ESC 4 24 M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE 4 7 ASSEMBLER The assembler assembles the file currently in the editor The assembler produces object or listing files according to the control option values The assembler always produces map files when invoked via MASM16 The source file uses factory standard mnemonics See the environment s help screens for a list of acceptable mnemonics A source program is a sequence of assembly language statements Each source statement occupies one line and can be a blank a comment an
74. rface Port Connection P10 Connection of an RS 232C compatible terminal or host computer to the EVB requires a user supplied 25 conductor cable assembly One end of the cable assembly needs a male DB25 connector this end of the cable connects to the EVB user interface port connector P10 shown below The other end of the cable assembly needs the appropriate connector for the RS 232C compatible port of the terminal or host computer For connector pin assignments and signal descriptions of connector P10 refer to Chapter 6 NOTE This cable is not essential for proper operation of the EVB Use this cable and connector P10 only if RS 232C communication with the on chip SCI port is required P10 GND 1 o 14 NC TXD 2 osle ke RXD 3 5 o 18 NO SPE nc S 6 A o 19 NC SIGNAL 20 NC d 5 O 21 NC O 22 NC NC 10 O Beane NC 11 Sa NC 12 o 25 NC NC 13 EVB User Interface Port Connector P10 2 14 M68HC16Z1EVB D Rev 1 M MOTOROLA HARDWARE PREPARATION AND INSTALLATION The EVB is wired as data communication eguipment DCE whereas a terminal and most serial modem ports on host computers are wired as data terminal equipment DTE This lets a straight through cable be used for most setups If a different type of cable is used for RS 232C connection between the EVB and a host computer a null modem adapter shown below may be required to match the cable
75. s context module means your main MASM16 source code or any include file Even if the module in the code window has no breakpoints the breakpoints remain active in other modules If a break occurs in another such module the module at breakpoint replaces the current module in the display NOTES When appropriate source code debugging automatically reverts to symbolic disassembly Typically this is because the code displayed is not in the map file Code in pseudo ROM from another source is an example If you use ASM PMM or another command to modify code memory the code window does not reflect your changes in source mode The code window does show your changes in disassembly mode M68HC16Z1EVB D Rev 1 3 23 EVB16 OPERATING PROCEDURE MOTOROLA Table 3 4 Code Window Commands em em Sets a breakpoint at the highlighted line or removes a breakpoint from the highlighted line like the BR command Prompts for and finds a search string Executes code until the highlighted line like GOTIL command but the highlighted line functions as the cursor Sets the IP to the location of the highlighted line Finds the next occurrence after Alt F AIt M Lists available source code modules press the carriage return or ESC to select one Scroll through code window or maneuver cursor in code window Selects a source code module from list displayed via the Alt M keys Cancels a request for a source file module 1 Hold d
76. s the cursor to column 1 of the current line or lt CTRL gt QS Bottom of block lt CTRL gt QK Moves the cursor to the block end marker set via the lt CTRL gt KK command This command works even if there is no block begin marker or if the block is hidden Bottom of screen lt CTRL gt End Moves the cursor to the last line on the screen or lt CTRL gt QX Character left Left arrow Moves the cursor one character to the left or lt CTRL gt S Character right Right arrow Moves the cursor one character to the right or lt CTRL gt D End of file lt CTRL gt PgDn Moves the cursor just beyond the end of the file or lt CTRL gt QC End of line End Moves the cursor to the end of the current line or and removes trailing blanks lt CTRL gt QD 4 14 M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE Table 4 5 Editor Cursor Commands continued Jump to marker 0 9 lt CTRL gt Q0 lt CTRL gt Q9 Line down Down arrow or lt CTRL gt X Line up Up arrow or lt CTRL gt E Page down PgDn or lt CTRL gt C Page up PgUp or lt CTRL gt R Previous cursor lt CTRL gt QP position lt CTRL gt Z Scroll down M68HC16Z1EVB D Rev 1 Description Prompts for a column number 1 120 then moves the cursor to that column Precede the value with or to offset the target column number from the current column Prompts for a line number 1 32 767 then moves the cursor to that line Precede th
77. ss enter the SHOWF3 or SHOWF6 command gt SHOWF3 myarray Sets location myarray as the start of the F3 window display Now you may begin debugging and testing your code by setting breakpoints or single stepping For example to single step enter this command gt ST 50 Single step through 50 instructions M68HC16Z1EVB D Rev 1 3 7 EVB16 OPERATING PROCEDURE MOTOROLA 3 5 DEBUG WINDOW COMMANDS Table 3 3 lists EVB16 debug commands Explanations of the individual commands follow the table Table 3 3 Debug Window Commands Syntax Meaning ASM add Assemble into pseudo ROM BF add add n Block fill memory with data BR add Set or remove breakpoint BW Change display to black and white mode CLEARMAP Remove source level debug information CODE add Show disassembled code in code window DMM X add n Assign data to RAM EVAL n op n Evaluate expression EXIT Exit the program FILL add add n Block fill memory with data G add add Go execute program GO add add Go execute program GOTIL add Go from IP to add GOTILROM add Single step fast to add HELP Display help system LOAD Load S records LOADALL Load S records and debug file LOADMAP Load MASM debug file LPT x Specify printer port MDF3 add Set F3 window memory display MDF6 add Set F
78. ssociated control circuits which provide the capabilities for evaluating user developed circuits and software routines Figure 5 1 shows the specific control circuits implemented into the EVB e Memory configuration e Logic analyzer e Data conversion M68HC16Z1EVB D Rev 1 5 1 MOTOROLA FUNCTIONAL DESCRIPTION HIZATYNY 319071 OL via div 1554 Sali Qv TYNAJLNI AHLINSHIS vid div TvNH3LX3 4 sna INO INO oanasd 0rSt LOIN H31H3ANOO L3IHS 13A31 ZeZ SH NOILOANNOD JOlAJO cez SH TvNH3LX3 OL lHOd 2d T3T1V8 vd OL Figure 5 1 HC16Z1EVB Block Diagram M68HC16Z1EVB D Rev 1 5 2 MOTOROLA FUNCTIONAL DESCRIPTION 5 2 2 User Memory Figure 5 2 shows the user map areas MCU I O ports MCU internal registers and user RAM The shaded areas of the memory map are not available to the user The exception vectors must remain in the block 00000 001 FF Also note that the ADC GPT SIM standby RAM and OSM must remain at their factory configured locations The five digit memory addresses of Figure 5 2 are consistent with addresses that appear in EVBI 6 screen windows Note that these five digits correspond to 20 of the total 24 intermodule bus 1MB address lines The MC68HC16Z1 technical summary document BR754 D explains extended addressing from 20 to 24
79. t indicated in the BR window 3 3 4 Code Window The code window displays code in one of three ways If no map file has been loaded the code window displays disassembled code If a full map file has been loaded there are two possibilities the code window either displays source code or it displays disassembled code with labels defined in the map file When appropriate this window also shows the IP and PC values as well as addresses of active breakpoints The EVB16 software also uses the code window to display the trace buffer Paragraph 3 6 explains source code debugging via the code window M68HC16Z1EVB D Rev 1 3 5 EVB16 OPERATING PROCEDURE MOTOROLA 3 3 5 Memory Windows The F6 and F3 memory windows at the center of the main screen display memory contents The F6 window accesses program memory The F3 window accesses data memory Values in these windows are hexadecimal and when appropriate in seven bit ASCII symbols A period appears in lieu of an unprintable ASCII character 3 3 6 Debug Window The debug window at the bottom of the main screen accepts most of your commands The prompt symbol is the character 3 3 7 Window Function Keys To move between windows and to carry out certain other actions use special function F keys of the keyboard Table 3 2 lists the functions of these keys Table 3 2 EVB16 Special Function Keys Go to the debug window F2 Go to the code window In this wi
80. t indicates whether a valid address is on the address bus DATA STROBE Active low output signal During a read cycle indicates that an external device should place valid data on the data bus During a write cycle indicates that valid data is on the data bus BUS REQUEST Active low input signal that indicates an external device request for bus mastership CHIP SELECT 0 Output signal that selects peripheral or memory devices at programmed addresses BUS GRANT Active low output signal that indicates completion of the current bus cycle and MCU relinquishment of the bus CHIP SELECT 1 Output signal that selects peripheral or memory devices at programmed addresses 6 3 SUPPORT INFORMATION MOTOROLA Table 6 3 Logic Analyzer Connector P3 Pin Assignments continued Signal Pin Number Mnemonic Signal Name and Description 10 CSBOOT BOOT CHIP SELECT Active low output chip select 11 CLKOUT SYSTEM CLOCK OUTPUT MCU internal clock output signal 12 16 A23 CS10 ADDRESS BUS 23 19 Five bits of the 24 bit A22 CS9 address bus A21 CS8 A20 CS7 CHIP SELECTS 10 6 Output signals that enable A19 CS6 peripheral devices at programmed addresses 17 19 A18 A16 ADDRESS BUS 18 16 Three bits of the 24 bit address bus 20 GND GROUND 6 4 M68HC16Z1EVB D Rev 1 MOTOROLA SUPPORT INFORMATION Table 6 4 Logic Analyzer Connector P4 Pin Assignments Si
81. t CTRL gt G inserts lt CTRL gt G the bell character The editor displays control characters as upper case highlighted letters The assembler does not accept control characters M68HC16Z1EVB D Rev 1 4 17 MASM16 OPERATING PROCEDURE MOTOROLA Table 4 6 Editor Insert and Delete Commands continued New line Return Enter or lt CTRL gt M Tab or 4 18 Description Inserts a line break at the cursor position The cursor remains at that position In insert mode inserts a line break at the cursor position In autoindent mode the cursor moves to the next line either to the column of the first non blank character in the current line or to column 1 In overwrite mode the cursor moves to column 1 of the next line without inserting a new line In insert mode moves the cursor and following text right to the next tab stop In overwrite mode moves only the cursor right to the next tab stop The extent of movement depends on the kind of tabs fixed or smart in use M68HC16Z1EVB D Rev 1 MOTOROLA MASM16 OPERATING PROCEDURE 4 6 7 Block Commands A block is any defined contiguous stream of text from a single character to many lines even an entire file To define a block put a block begin marker at the first character and a block end marker after the last Once you define a block in this way you can move it copy it delete it or write it to a file
82. t EVAL 102T 54 Evaluate 102 plus 54 OOBAH 186T 0002720 00000000101110100 Answer in four bases EXIT Exit the program This command exits the program returning to DOS gt EXIT Return to DOS FILL add add n Block fill memory with data This command is an alternative form of the BF command M68HC16Z1EVB D Rev 1 3 13 EVB16 OPERATING PROCEDURE MOTOROLA G add add Go execute program add First parameter execution starting address or label second parameter breakpoint address or label This command starts and stops processor execution of instructions according to the specified address parameters e If the command has two parameter values the system sets a new breakpoint at the second address or label then executes code from the first address or label Execution continues until it arrives at a breakpoint which could be the one just set or until the user presses a key e Ifthe command has one parameter value the system executes code from that address or label until it arrives at an existing breakpoint or until the user presses a key If the command has no parameter values the system executes code from the IP value until it arrives at an existing breakpoint or until the user presses a key The processor runs at full execution speed during a GO command NOTE To terminate program execution started via the G command press the F1 key G start timel Start code execut
83. t an external device should place valid data on the data bus During a write cycle indicates that valid data is on the data bus CLOCK MODE SELECT Active high input signal that selects the source of the internal system clock TARGET INTERRUPT REQUEST 1 7 Active low input signals from the target that asynchronously apply MCU interrupts IRQ1 has the lowest priority IRQ7 has the highest TRANSMIT DATA Serial data output line 13 PSCO SS PERIPHERAL CHIP SELECT 0 Active low output QSPI peripheral chip select signal SLAVE SELECT Bi directional active low signal that puts the QSPI in slave mode 14 16 PSC1 PSC3 PERIPHERAL CHIP SELECT 1 3 Active low output peripheral chip select signals 17 SCK QSPI SERIAL CLOCK In master mode the clock signal from the QSPI in slave mode the clock signal to the QSPI M68HC16Z1EVB D Rev 1 6 9 SUPPORT INFORMATION MOTOROLA Table 6 6 Logic Analyzer Connector P6 Pin Assignments continued Signal Pin Number Mnemonic Signal Name and Description 18 MISO MASTER IN SLAVE OUT In master mode serial input to the QSPI in slave mode serial output from the QSPI 19 MOSI MASTER OUT SLAVE IN In master mode serial output from the QSPI in slave mode serial input to the QSPI 20 GND GROUND 6 10 M68HC16Z1EVB D Rev 1 MOTOROLA SUPPORT INFORMATION Table 6 7 Logic Analyzer Connector P
84. target chip Listing file Specifies the path and name of the listing file Object file Specifies the path and name of the object file Error limit Limits to n the number of errors before assembly stops where n is 1 999 Header Specifies contents for a listing file header Path to MASM Specifies the DOS directory that contains the MASM assembler and the HEX EXE file Debugger cmd Specifies the command string to run the debugger The string must include the path and must end with the printer port the debugger uses Example EVB16 1 Save options Saves selections of the Assemble and Options menus Help none Brings up the help menu Same as hotkey Fl M68HC16Z1EVB D Rev 1 4 7 MASM16 OPERATING PROCEDURE MOTOROLA 4 4 SETTING OPTIONS Assembly control options govern which output files the assembler creates as well as the appearance of such files To set options press the F10 hotkey to bring up the menu system Then select choices from the Assemble and Options menus To make current option values apply to subsequent files as well as a file assembled immediately select Save options from the Options menu From the Assemble menu select values for these options 4 8 Object Set the ON value to create a S19 object file You must enter a path and object file name via the Object file option To assemble without creating an object file for example to error check the
85. the J6 trace on the bottom of the board Subsequently to restore the power to pins 1 of P1 and P2 insert a fabricated jumper in header J6 2 3 4 Memory Access Fault Prevention Header J7 The factory configuration of jumper header J7 is shown below The fabricated jumper installed between pins 2 and 3 ensures correct MCU operation at power up by asserting the DSACKO signal This asserted signal puts the MCU into background mode should RAM reset vectors point to unimplemented memory J7 1 2 3 BERR DSACKO Repositioning the fabricated jumper to pins 1 and 2 asserts the BERR signal For future revisions of the HC16Z1 this will be an alternative way to ensure correct operation by putting the MCU into background mode M68HC16Z1EVB D Rev 1 2 9 HARDWARE PREPARATION AND INSTALLATION MOTOROLA 2 3 5 P5 P6 5 Volt Select Header J8 The cut trace short of jumper header J8 below gives 5 volt power to pins 1 of logic analyzer connectors P5 and P6 J8 CUT TRACE SHORT ON BOTTOM OF BOARD If you do not want this functionality carefully cut the J8 trace on the bottom of the board Subsequently to restore the power to pins 1 of P5 and P6 insert a fabricated jumper in header J8 2 3 6 RXD Connect Header J9 The cut trace snort of jumper header J9 below connects the RXD signal of the HC16 device to the RS 232 driver device at location U8 J9 CUT TRACE SHORT ON BOTTOM OF BOARD To disconnect the RX
86. three character pairs 3 bytes follow 00 The address field zeros 00 FC Checksum of the 89 record Each printable character in an S record is encoded in a hexadecimal representation ASCII in this example of the binary bits actually transmitted For example below is a diagram of the first SI record described above TYPE LENGTH ADDRESS CODE DATA CHECKSUM Popo ip op PoE Pb sp CE 0101 0011 0011 0001 0011 0001 0011 0011 0011 0000 0011 0000 0011 0000 0011 0000 0011 0010 0011 1000 0011 mma mu 0011 0010 0100 0001 M68HC16Z1EVB D Rev 1 A 5 S RECORD INFORMATION MOTOROLA A 6 M68HC16Z1EVB D Rev 1
87. tive information identifying the following block of S records The address field is normally zeros A record containing code data and the 2 byte address at which the code data is to reside A record containing code data and the 4 byte address at which the code data is to reside 4 byte address of the instruction to which control is to be passed There is no code data field 3 byte address of the instruction to which control is to be passed There is no code data field 2 byte address of the instruction to which control is to be passed If such an address is not specified the first entry point specification encountered in the object module input will be used There is no code data field There is only one termination record for each block of S records The usual reason to use S7 or S8 records is when control is to be passed to a 3 or 4 byte address Normally there is only one header record although multiple header records are possible M68HC16Z1EVB D Rev 1 A 3 S RECORD INFORMATION MOTOROLA A 4 S RECORD CREATION Several dump utilities debuggers linkage editors cross assemblers or cross linkers may produce S record format programs Several programs are available for downloading a file in S record format from a host system to a microprocessor based system A 5 S RECORD EXAMPLE A 4 The following example shows how a typical S record format module is printed or displayed The module consists of one SO four S1
88. to the packing list and verify that all items are present Save packing material for storing and shipping the EVB 2 3 HARDWARE PREPARATION The user should inspect and prepare the EVB before use This portion of text explains how to do this as well as how to configure the EVB for the system operation the user needs The EVB has been factory tested it is shipped with factory installed jumpers Figure 2 1 shows the locations of jumper headers and connectors Connectors P1 through P7 are the logic analyzer connectors Connector P8 is for system power and connector P9 is the PC printer port Connector P10 is the optional RS 232 interface connector for user code development Connector P11 is an additional power connector for the PCM56P power supply 8 Vdc to 15 Vdc Refer to Chapter 6 for connector pin assignments Switch SW1 is the reset switch M68HC16Z1EVB D Rev 1 2 1 HARDWARE PREPARATION AND INSTALLATION MOTOROLA 2 2 Jumper headers J1 through J4 configure the EVB for RAM devices or either of two types of EPROM devices at locations 02 and U4 Jumper header J5 configures the correct address or control signals to the pins of the memory device at location U4 Jumper header J6 gives 5 volt power to logic analyzer connectors PI and P2 Jumper header J7 selects a signal that prevents memory access faults Jumper header J8 gives 5 volt power to logic analyzer connectors P5 and P6 Jumper header J9 connects the RXD signal o
89. umbers as long as the numbers have a proper prefix or suffix per Table 3 1 Table 3 1 EVB16 Number Symbols 8 Optional prefix for hexadecimal numbers as 0FF NE MEE Required prefix for decimal numbers as 255 which equals 0FF Required prefix for octal numbers as 2377 which equals 0FF and 1255 Reguired prefix for binary numbers as 11111111 which eguals OFF 1255 and 9377 H Optional hexadecimal number suffix an alternative to the prefix OFFH 0FF Decimal number suffix an alternative to the prefix 255T 255 Lu Octal number suffix an alternative to the prefix 3770 9377 Binary number suffix an alternative to the 96 prefix 111111110 9611111111 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE 3 2 STARTUP Before running EVB16 software make sure that the EVB board is connected and powered up To start EVB16 operation enter the startup command at the DOS prompt EVB16 lt lptn gt lt path gt bw lt Iptn gt Specifies the parallel port connected to the Possible values are 1 1 lpt2 and lpt3 Iptl is the default The values lptl lpt2 and lpt3 also are valid commands from within EVB16 path Specifies the full path to a directory that contains the code for source level debugging bw Specifies black and white mode often appropriate for using a lap top computer EVB16 lpt2 path Starts program via lpt2 and
90. urce to user program RAM pseudo ROM via EVB16 that is through the background mode port The EVB includes jumper selectable options such as clock source selection ROM or RAM selection and memory size selection The EVB offers various operating configurations for the optional data converters A switch lets the user reset EVB circuitry 1 5 EQUIPMENT REQUIRED The external requirements for EVB operation are a 5 Vdc power supply and a host computer The computer must run under MS DOS PC DOS or Dr DOS and must have a Centronics compatible interface port and cable assembly For optional analog digital A D data conversion the user also must supply a Burr Brown PCMS6P device for EVB location U12 and 8 Vdc to 15 Vdc power M68HC16Z1EVB D Rev 1 1 3 GENERAL INFORMATION MOTOROLA 1 6 CUSTOMER SUPPORT For information about a Motorola distributor or sales office near you call AUSTRALIA Melbourne 61 3 887 0711 Sydney 61 2 906 3855 BRAZIL Sao Paulo 55 11 815 4200 CANADA B C Vancouver 604 606 8502 ONTARIO Toronto 416 497 8181 ONTARIO Ottawa 613 226 3491 QUEBEC Montreal 514 333 3300 CHINA Beijing 86 10 68437222 DENMARK 45 43488393 FINLAND Helsinki 358 9 6824 400 FRANCE Paris 33134 635900 GERMANY Langenhagen Hannover 49 511 786880 Munich 49 89 92103 0 Nuremberg 49 911 96 3190 Sindelfingen 49 7031 79 710 Wiesbaden 49 611 973050
91. w text starts at the cursor position The editor includes several block commands for moving and copying text several delete commands for correcting mistakes and find and find and replace commands for changing text In many cases you can undo your last several commands via the restore line command Paragraphs 4 6 1 through 4 6 8 explain the various editor commands 4 6 1 The Editing Screen The top line of the editing screen is a prompt line This line displays messages instructions and responses to prompts When you enter a two key command the editor echoes the first key at the left edge of the prompt line Below the prompt line is the edit window The top line of the edit window is a status line Table 4 3 lists status line information Table 4 3 Edit Window Status Line Information ltem Role or Description FILENAME EXT Name and extension of the file being edited You may specify full path names to the editor but this item shows only name and extension Line n File line number position of the cursor Col n File column number position of the cursor Byte n Byte number position of the cursor relative to the first character in the file Insert Indicates that the editor is in insert mode as opposed to overwrite mode Indent Indicates that the editor is in auto indent mode Tab Indicates that the editor is using fixed tab stops Save
92. ware 3 18 M68HC16Z1EVB D Rev 1 MOTOROLA EVB16 OPERATING PROCEDURE SHOWF3 add Set F3 window memory display This command is an alternative form of the MDF3 command SHOWF6 add Set F6 window memory display This command is an alternative form of the MDF6 command SIGNLATCH n Set sign latch to n n New value 0 or 1 for sign latch This command gives the specified value to the sign latch CPU resource gt SIGNLATCH 1 Set sign latch value to 1 SOURCE Toggle code display This command toggles the display in the debug window between source code and disassembled code A valid map file must be loaded for this command to work gt SOURCE Toggle debug window display to source code or to disassembled code SOURCEPATH Search for code in another directory This command starts a search for source code not in the current directory The system prompts for the DOS path gt SOURCEPATH Search for code in another directory M68HC16Z1EVB D Rev 1 3 19 EVB16 OPERATING PROCEDURE MOTOROLA ST n Do single step trace n number of steps to trace This command starts single step tracing from the IP value for n number of steps The default n value is 1 The processor does not run at full execution speed during an ST command gt ST 10 Trace through 16 single steps gt ST Trace through I single step STEP n Do single step trace This command is an alternative form of the ST
93. xplanations of this chapter cover startup general use the main screen debug commands source code debugging and the trace buffer 3 1 1 Typeface and Parameter Conventions This chapter uses four different typefaces 1 Chapter heads chapter subheads and EVB16 commands appear in this bold typeface Heads and subheads start at the far left margin commands are indented about half an inch 2 Examples are in this typeface 3 Text and explanations are in this normal typeface 4 Special comments are in this italic typeface Also note these conventions for parameters and keyboard entries add indicates any valid hexadecimal address or label e file indicates a file name IP is the instruction pointer which points to the next instruction to be executed n indicates any hexadecimal number 0 0FFFFF PC is the program counter which points to the next instruction to be fetched The PC value equals the IP value plus 6 e indicate an optional parameter e CR indicates the ENTER RETURN or carriage return key of your keyboard M68HC16Z1EVB D Rev 1 3 1 EVB16 OPERATING PROCEDURE MOTOROLA 3 1 2 3 2 EVB16 Numerical Formats Unless otherwise specified all numbers in EVB16 are hexadecimal all numerical values EVB16 displays have base 16 Furthermore EVB16 presumes that any numbers you enter also are base 16 numbers However EVB16 does accommodate decimal octal and binary n
94. yte mode MCU I O ports HCMOS compatible Monitor interface Centronics parallel compatible Optional development interface RS 232C compatible Temperature Operating 425 C Storage 40 to 85 C Relative humidity 0 to 90 non condensing Power requirements 5 Vdc 1 0 A max Dimensions 9 5 x 6 6 in 241 x 190 mm 1 See paragraph 2 3 2 for an explanation of word and byte modes 1 2 M68HC16Z1EVB D Rev 1 MOTOROLA GENERAL INFORMATION 1 4 GENERAL DESCRIPTION The EVB is an economical tool for designing debugging and evaluating MC68HC16Z1 MCU operation The factory ships the EVB with a resident MC68HC16Z1 MCU device By providing the essential MCU timing and I O circuitry the EVB simplifies user evaluation of prototype hardware software products The EVB requires a user supplied power supply and host computer For communication with the EVB the user needs a personal computer PC with a Centronics type parallel port The P amp E software included with the EVB uses the parallel port for communications The EVB also has an RS 232 serial port for user access to the on chip serial communication interface SCI although this port is not used with the EVB16 development system software The EVB operates in background mode a backdoor method of talking to the CPU core There are two methods of generating MCU code 1 Using the EVB one line assembler disassembler 2 Downloading assembled code from an external so

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