Stellaris LM4F232 Evaluation Board User`s Manual
Contents
1. VB D D ID G USB_VBUS gt PBO USBOID USBODP USBODM PAO UORX PAL UOTX PA2 SSIOCLK PA3 SSIOFSS PA4 SSIORX PAS SSIOTX PAG PA7 PCO TCK SWCLK PC1 TMS SWDIO PC2 TDI PC3 TDO SWO PC4 PC5 PC6 PC7 PEO PEL PE2 PE3 PES PES PEG PE7 PGO PGl PG2 PG3 PG4 PG5 PG6 PG7 PJO PJ1 PJ2 PJ3 Pa S PJ6 PJ7 PLO PL1 PL2 PL3 PL4 PL5 PL6 USBODP PL7 USBODM PNO PN1 PN2 PN3 PN4 PN5 PNG PN7 PBO USBOID PB1 USBOVBUS PB2 12C0SCL PB3 I2COSDA PB4 PB5 USB_VBUS PBO USBOID USB_VBUS PBO USBOID PB2 PB3 PB4 PBS PFO UIRTS EM CTS PFI UICTS EM RTS PF2 EM NSHUTD PF3 EM RST PF4 EM GPIO3 PF5 EM GPIO2 PF6 12C2SCL EM I2CSCL PF7 12C2SDA EM I2CSDA PHO SSI3CLK EM SCLK PHI SSI3FSS EM CS PH2 SSI3RX EM MISO PH3 SSI3TX EM MOSI PHA SSI2CLK OLEDSCLK PH5 SSI2FSS OLEDCS PH6 OLEDD C PH7 SSI2TX OLEDSDIN PKO PK1 PK22. R13 1M PWR EN PG4 USBOEPEN Ka EEA R23 10K OCZ OUT2 GND GND gt PG5 USBOPFLT USB_VBUS TPS2052BDRB 3 3V 400mA Regulator us TPS73633DRB IN OUT c22 UF REF5030AID 43 0 VREF c23 10UF 50V 13V 20mA OLED Supply IND ELL6GM L1 PGO_ 13VEN FB COMP FREQ GND SS TPS61085 C26 10UF 50V 3 3V TARGETRST vi 32 768Khz MAIN OSCILLATOR C27 10UF 50V HIBERNATION OSCILLATOR To improve oscillator immunity to system noise it is recommended to connect GNDX to the hibernation MCU_VBAT H119 te H120 D6 H132 PWR_EN DIO 1N4448HWS R31 si 220K 3 0_VREF VREFA GC BAT CR2032 SMT MCU_VDDC H121 H122 3 3V MCU_VDD R34 053 W c54 0 1 TUF TUF u15 1NA198 7 6 MCU_VDD N VI 3 3V TAN 2 GND V 3 crystal load capacitors See LM4F232H5QD Datasheet for more information LM4F232H5QD Hibernate Logic
3. 16 Debug and Virtual COM Port Schematic Page A 18 Chipcon Wireless Evaluation Module Connector Schematic Page 5 19 Chapter 3 Software Development ss sinenennnnnneennnnnnnneennneenenneneeeennnneennes 20 Software DescrIption c coeur e A teer ne e itu e AAA vu e e dead 20 A E a EE AEAN ASEENA RE NENNEN eee Wie evs cent dite andere arden die ner tie 20 TOO O IO EE nn ase teeta EE 20 Programming the EK LM4F232 Board sise 21 Appendix A Schematics iii A ide 22 Appendix B Component Locations enennnnennnnennnensesnnnsts 28 Appendix C Bill of Materials BOM nent 29 Appendix D References 6 ie o nnan 33 September 14 2012 3 Stellaris LM3S9B92 EVALBOT User s Manual List of Figures Figure 1 1 Figure 2 1 Figure B 1 Figure B 2 Stellaris LM4F232 Evaluation Board EK LM4F232 Evaluation Board Block Diagram EK LM4F232 Component Locations Top View EK LM4F232 Component Locations Bottom View September 14 2012 List of Tables Table 1 1 EK LM4F232 Specifications sise 8 Table 2 1 USB Host Device OTG Signals sise 10 Table 2 2 User Switches and User LED Signals nennen enne 11 Table 2 3 4 Channel Analog Measurement Signals eee nennen 12 Table 2 4 3 Axis Analog Accelerometer Signals eene 13 Table 2 5 Temperature Sensor GPIO siennes 13 Table 2 6 Linear Transfer Functions for Common Temperature HRanges sess 14 Table 2 7 Microcontroller Running Current Gonals 15
4. PPO AIN23 MCU ISENSE lt Current Shunt Amplifier Not required for VDD3ON mode or when using a single power source see datasheet 3 0_VBAT 3 3V VBUS RESET 5 0V 3 0_VREF H10 H10 H103g GND TPS3803 01 DESIGNER DAY A PROJECT LM4F232H50D Evaluation Kit REVISION DATE 10 26 2012 C52 0 1UF IT R33 AL AW GND 1K m gt PWR_EN 2 U14 SN74AHC1G125DRL TEXAS INSTRUMENTS STELLARIS MICROCONTROLLERS 108 WILD BASIN ROAD SUITE 350 AUSTIN TX 78746 DESCRIPTION Power www ti com stellaris FILENAME Armadillo Rev A sch PART NO EK LM4F232 DEBUG VCOM PAl UOTX VCP BAD PAO UORX VCP TXD ICDI USB AG ada Stellaris In Circuit Debug Interface CDI J8 CON USB MINI B 5V D D G R37 R38 U16 10K 10K ICDI_VBUS PAO UORX PBO CCPO PAI UOTX PBI UITX DEBUG PCO TCK SWCLK PA2 SSIOCLK PB2 DCOSCL DEBUG PC1 TMS SWDIO PB3 I2COSDA mE ES TDO SWO PBA UIRX DEBUG PC2 TDI PBS CCP2 TARGETRST lt PA6 2CISC PB6 CCP1 D 413 3V 3 3V PAT RCIS PB7 NMI ICDI STATUS PDO U2RX PDI U2TX 2 DS AA 1CDI JTAG 2 PONOS pa gt PD3 CCP7 ICDI_TCK ICDI_TMS PC6 USBOPFLT ICDI TDO ICDI TDI
5. 6 PCT CCP4 ICDI_TDO gt 1CDI_TDI gt ICDI RST S USBODM S SBODP USBORBIAS ICDI_TCK an Ip me C TC2050 IDC NL ICDI_RST osco OSCI XOSCO 4 Recommend connecting GND to XOSCO XOSCI and leaving XOSC1 disconnected A when unused unlike this example VBAT 3 3V VDDI VDD2 VDD3 LM3S3601 DESIGNER REVISION DATE DAY A 10 26 2012 TEXAS INSTRUMENTS PROJECT STELLARIS MICROCONTROLLERS LM4F232H5QD Evaluation Kit 108 WILD BASIN ROAD SUITE 350 AUSTIN TX 78746 DESCRIPTION www ti com stellaris Stellaris In Circuit Debug Interface FILENAME PART NO Armadillo Rev A sch EK LM4F232 Chipcon Wireless EM Connector jo J10 EM_SIGNALS OMIT OMIT EM_SIGNALS vss VDD2 1 8V OPTION XA OMT PEO UIRTS EM CTS RF UART CTS VDD2 1 8V OPTION VCC OUT RF SLOW CLK 32K VDD2 1 8V OPTION NC GND RF UART RX VDD1 3 3V RF UART TX VDD1 3 3V OSC ASVK 32 768KH2 LJT RF_12C_SDA BT FM_AUD_12S_FS H RF_I2C_SCL RF_GPIO2 RF_SDIO_CLK RF_CC_RSTN RF_SDIO_CMD BT FM_AUD_125_CLK vss RF WCS NSHUTD RF SDIO Do vss 5 RF SDIO Di ANA AUDIO FM LEFT g RF SDIO D2 ANA AUDIO FM RIGHT i0 RF SDIO D3 BT FM AUD I2S DX 17 RE_GPI00 GDOO BT FM_AUD_125_RX 14 16 18 20 P
6. September 14 2012 31 Stellaris LM4F232 Evaluation Kit User s Manual Table C 1 EK LM4F232 Bill of Materials BOM Continued 51 U8 1 Regualtor 3 3V 400mA LDO Texas TPS73633DRBT Instruments 52 U9 1 Precision 3 0V reference SOIC 8 Texas REF5030AID Instruments 53 Y1 1 Crystal 32 768KHz Radial Can Abracon AB26TRB 32 768K HZ T 54 Y2 3 2 Crystal 16 00MHz 5 0x3 2mm SMT NDK NX5032GA 16 000 000MHZ 55 PCB1 1 PCB for EK LM4F232H5QD FR 4 6 layer ENIG Rev A PCB Do Not Populate List Shown for information only 56 C30 C51 C67 3 Capacitor 0 1uF 50V 10 0603 X7R Murata GRM188R71H104 KA93D 57 C66 1 Capacitor 0 01uF 50V 5 0603 X7R Kemet C0603C103J5RAC TU 58 J9 J10 2 Header 2x10 0 050 SMT Vertical Samtec TFM 110 02 S D K Shrouded Socket A 59 R16 R44 46 4 Resistor 0 OHM 1 10W 0603 SMD Panasonic ERJ 3GEYOROOV 60 Y4 1 Oscillator 32 768 kHz SMT Abracon ASVK 32 768KHZ LJT Final Assembly Bill Of Materials 61 Z1 1 Battery Lithium CR2032 Panasonic CR2032 Non Rechargeable 62 Z2 1 Jumper 0 100 Gold Black Closed Sullins SPCO2SYAN 63 Z3 7 5 Rubber Feet Adhesive Round 3M SJ 61A1 0 312 x 0 200 32 September 14 2012 References In addition to this document the following references are included on the Stellaris LM4F232H5QD Evaluation Kit CD and are also available for download at www ti com W Stellaris LMAF232H5QD Microcontroller Data Sheet pu
7. Table 2 8 OLED Display Signals ere 15 Table 2 9 SD Card Signals ire ete Mene tote 15 Table 2210 Power Requirements iie etes e LR adt lag ERR RD LR Put ER Rea DELE gat ig aged Dee 18 Table 2 11 Breakout Reouirements seen 18 Table 2 12 Stellaris In Circuit Debug Interface CDI Sionale 19 Table 2 13 Virtual COM Port Signals iii 19 Table C 1 EK LM4F232 Bill of Materials BOM iii 29 September 14 2012 5 CHAPTER 1 Board Overview The Stellaris LM4F232 Evaluation Board EK LM4F232 is an evaluation platform for the Stellaris LM4F232H5QD ARM Cortex M4F based microcontroller The evaluation board s design highlights the LM4F232H5QD microcontroller s USB 2 0 On The Go Host Device USB OTG Host Device interface 12 bit Analog to Digital Converter ADC Real Time Clock RTC and battery backed Hibernation module Figure 1 1 shows a photo of the EK LM4F232 Figure 1 1 Stellaris LM4F232 Evaluation Board OLED Stellaris JTAG Graphics Toon de Power LM4F232H5QD Get Header Display lies LED Microcontroller Sensor PD2 LIS PD3 Bco PD4 ra O y a PEO AMS Dn KT pun WITT PES ANO gen pee amcar az V5 N f P 4 ANS AY 5 E PAS SSIQFSS PAS SSOTX EVALUATION BOARD CTS TES _ 4 5 LM4F232H5 40 Power Select USB Connector SELECT INA198 USB Connector Reset 3 Axis Analog Jumper Power ICDI WAKE Current Shunt Host Device Switch Accelerometer Button Amplifier OTG and Current Shunt Resistors Kit
8. Texas Instruments Incorporated
9. Axis Debug Header Accelerometer September 14 2012 Stellaris LM4F232 Evaluation Kit User s Manual Functional Description Microcontroller USB OTG User Navigation Switches User LED and GPIO Headers Schematic page 1 Microcontroller The Stellaris LM4F232H5QD is an ARM Cortex M4F based microcontroller with 256 KB Flash memory 32 KB SRAM 80 MHz operation USB Host Device OTG Hibernation module and a wide range of other peripherals See the LM4F232H5QD microcontroller data sheet order number DS LM4F232H5QD for complete device details Most of the microcontroller signals are routed to 0 1 pitch break out pads and labeled with their GPIO reference An internal multiplexer allows different peripheral functions to be assigned to each of these GPIO pads When adding external circuitry consideration should be given to the additional load on the evaluation board s power rails The LM4F232H5QD microcontroller is factory programmed with a quickstart demo program The quickstart program resides in on chip Flash memory and runs each time power is applied unless the quickstart application has been replaced with a user program USB Host Device OTG 10 The EK LMAF232 includes a USB Micro AB OTG connector to allow for USB Host Device and OTG operation The following signals are used for USB OTG Table 2 1 USB Host Device OTG Signals PL6 USBODP D PL7 USBODM D PBO USBOID ID PB1 USBOVBUS USB VBUS
10. Verify After Program box and check Reset MCU After Program Click the Program button to start the Erase Download and Verify process The DEBUG ACTIVE LED D5 on the board turns on at this time Program execution starts once the Verify process is complete September 14 2012 21 Schematics This section contains the schematics for the EK LM4F232 board B Microcontroller USB OTG User Switches and LED on page 23 Logger Temp Sensor OLED SD Card on page 24 Power on page 25 Stellaris In Circuit Debug Interface ICDI on page 26 Chipcon Wireless Evaluation Module Connector on page 27 September 14 2012 22 EXTDBG lt External Debug 3 3V J1 DEBUG VCOM DEBUG_PC1 TMS SWDIO PAO UORX VCP TXD U1 A DEBUG PCO TCK SWCLK PAl UOTX VCP BAD DEBUG PC3 TDO SWO DEBUG_PC2 TDI TARGETRST o o o Lo o USB On The Go PA2 SSIOCLK SDCLK PA3 SSIOFSS SDCS PA4 SSIORX_SDDO PAS SSIOTX_SDDI DEBUG PCO TCK SWCLK DEBUG_PC1 TMS SWDIO DEBUG PC2 TDI DEBUG PC3 TDO SWO PCAJUIRX EM TX PC5 UITX EM RX PC6 EM GPIOO PC7 EM GPIO1 EM SIGNALS PEO AIN3 PE1 AIN2 PE2 AIN1 PE3 AINO PE4 AIN9 ACCY PES AIN8_ACCX PEG AIN21 ACCZ PE7 AIN20 TEMP PGO_ 13VEN PG1_OLEDRST PG2_USER_LED PG4 USBOEPEN PG5 USBOPFLT 12 CON USB MICROAB uUuuuu
11. an approximate 0 01 V resolution A voltage divider on each channel scales the 0 20 V range on the terminal to the 0 3 V range of the 12 bit Analog to Digital Converter ADC of the LM4F232H5QD microcontroller Each scaled down signal passes through a unity gain amplifier to provide a low impedance source for the microcontroller s ADC Below are some useful equations to keep on hand when using the four data logger channels V V V V _ ADG Ze ADC gr Me TERMINAL R 18000 0 146 R R 105000 18000 V 3 0V ADC Vo LRE x ADCCODE x ADCCODE s 0 7326mV x ADCCODE 2 4095 For example if the code read from the ADC is 2048 the voltage measured by the ADC is V pc 0 7326mV x 2048 1 5V Therefore the voltage being measured at the screw terminal is Pr z 0 146 0 146 Caution Exceeding the input range on either the screw terminal or the ADC pins directly can damage the analog circuitry 3 Axis Analog Accelerometer The evaluation board includes a Bosch BMA140 3 axis analog accelerometer The accelerometer is powered by a Texas Instruments REF5030 Precision 3 0 V Reference U9 and outputs an analog signal centered on half the 3 0 V source therefore 0 g translates to 1 5 V on the output The sensor can measure accelerations up to 4 g September 14 2012 Hardware Description Each axis has its own analog signal A Ay and A The sensor outputs are passed through a unity gain amplifier to provide a low i
12. and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help For EVMs annotated as IC INDUSTRY CANADA Compliant This Class A or B digital apparatus complies with Canadian ICES 003 Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Concerning EVMs including radio transmitters This device complies with Industry Canada licence exempt RSS standard s Operation is subject to the following two co
13. obtained appropriate experimental development licenses from local regulatory authorities which is responsibility of user including its acceptable authorization For EVMs annotated as FCC FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant Caution This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment FCC Interference Statement for Class A EVM devices This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense FCC Interference Statement for Class B EVM devices This equipment has been tested
14. on the board for customers who want to solder the headers to connect a Texas Instruments wireless evaluation module See Appendix C Bill of Materials BOM on page 29 for the orderable part numbers that can be populated on the pads J9 J10 Y4 C66 and C67 Although no wireless software support is provided out of the box customers and third parties are encouraged to port existing wireless projects to the EK LM4F232 evaluation board through the use of this interface See the Chipcon Wireless Evaluation Module Connector schematic on page 27 for information on what peripherals are connected to the wireless headers September 14 2012 19 Software Development This chapter provides general information on software development as well as instructions for Flash memory programming Software Description The software provided with the EK LM4F232 provides access to all of the peripheral devices supplied in the design The StellarisWare Peripheral Driver Library is used to operate the on chip peripherals The software includes a set of example applications that use the StellarisWare Peripheral Driver Library These applications demonstrate the capabilities of the LM4F232H5QD microcontroller as well as provide a starting point for the development of the final application for use on the EK LM4F232 evaluation board The EK LM4F232 Evaluation Kit CD also contains a Windows quickstart companion for the Data Logger quickstart application
15. requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failures monitor failures and their consequences lessen the likelihood of failures that might cause harm and take appropriate remedial actions Buyer will fully indemnify TI and its representatives against any damages arising out of the use of any TI components in safety critical applications In some cases TI components may be promoted specifically to facilitate safety related applications With such components Tl s goal is to help enable customers to design and create their own end product solutions that meet applicable functional safety standards and requirements Nonetheless such components are subject to these terms No TI components are authorized for use in FDA Class III or similar life critical medical equipment unless authorized officers of the parties have executed a special agreement specifically governing such use Only those TI components which TI has specifically designated as military grade or enhanced plastic are designed and intended for use in military aerospace applications or environments Buyer acknowledges and agrees that any military or aerospace use of TI components which have not been so designated
16. Contents The EK LM4F232 evaluation kit comes with the following E Stellaris EK LM4F232 evaluation board M On board Stellaris In Circuit Debug Interface ICDI M Cables USB Mini B to USB A plug cable for debug USB Micro A plug to USB A receptacle cable USB Micro B plug to USB A plug cable m USB Flash drive September 14 2012 6 Position Screw Terminal Block for Analog User Measurement LED Di E hu Em vw microSD Card Slot Board Overview 3 V CR2032 lithium coin cell battery CD containing StellarisWare Peripheral Driver Library and example source code Stellaris amp Firmware Development Package with example source code Quickstart application with source code Windows companion application for quickstart application Complete documentation Asupported version of one of the following Keil RealViewO Microcontroller Development Kit MDK ARM AR Embedded Workbench development tools e Sourcery CodeBench development tools Code Red Technologies development tools Texas Instruments Code Composer Studio IDE Using the EK LM4F232 The recommended steps for using the EK LM4F232 evaluation kit are 1 Follow the README First document included in the kit The README First document will help get the EK LM4F232 evaluation board up and running in minutes 2 Use your preferred ARM tool chain and the Stellaris Peripheral Driver Library to develop an application Softwar
17. F6 12C2SCL EM I2CSCL PF5 EM GPIO2 PF3 EM RST F2 EM NSHUTD PC6 EM GPIOO RF GPIO1 GDO2 USBM RF SPI CSn USBP RF SPI CLK NC RF SPI MOSI RF UART RTS RF SPI MISO RF GPIO3 EM CONNECTOR 1 EM CONNECTOR 2 Not installed or supported DESIGNER REVISION DATE DAY A 10 26 2012 TEXAS INSTRUMENTS PROJECT STELLARI S MICROCONTROLLERS LM4F232H5QD Evaluation Kit 108 WILD BASIN ROAD SUITE 350 AUSTIN TX 78746 DESCRIPTION www ti com stellaris Chipcon Wireless EM Connector Not Installed FILENAME PART NO Armadillo Rev A sch EK LM4F232 Component Locations Plots of the top side and bottom side component locations are shown in Figure B 1 and Figure B 2 Figure B 1 EK LM4F232 Component Locations Top View 6 00 TUPT 96x64 OLED Figure B 2 EK LM4F232 Component Locations Bottom View RI6 R44 R46 R45 e lt 064 C65 een C60 C61 R35 28 September 14 2012 APPEND X C Bill of Materials BOM Table C 1 shows the Bill of Materials for the EK LM4F232 evaluation board Table C 1 EK LM4F232 Bill of Materials BOM 1 BT1 1 Battery Holder CR2032 SMT Keystone 3002
18. H5QD using LM Flash Programmer and or any of the supported tool chains Both JTAG and Serial Wire Debug SWD are supported NOTE Although other Stellaris kits support debug out the EK LM4F232 evaluation board does not support this You can use another Stellaris evaluation kit for debug out An external debugger can be connected to the evaluation board through a 2 x 5 fine pitch 0 05 ARM JTAG header When connecting an external debugger pin 3 of the JTAG header must be tied September 14 2012 Hardware Description to ground in order for the Stellaris ICDI to release control of the JTAG signals The ARM standard pinout specifies pin 3 as ground therefore any standard third party debugger should work Table 2 12 shows the pins used for JTAG and SWD Table 2 12 Stellaris amp In Circuit Debug Interface ICDI Signals PCO TCK SWCLK 4 PC1 TMS SWDIO 2 PC2 TDI 8 PC3 TDO SWO 6 RST RST 10 ENEE EXTDBG 3 See Appendix A Schematics on page 22 for the full header pinout Virtual COM Port When plugged in to a PC the device enumerates as a debugger and a virtual COM port Table 2 13 shows the connections for the COM port to the pins on the microcontroller Table 2 13 Virtual COM Port Signals PAO UORX TXD PA UOTX RXD Chipcon Wireless Evaluation Module Connector Schematic Page 5 These features are not populated on the board The pads have been laid out
19. Indemnity Agreement Mailing Address Texas Instruments Post Office Box 655308 Dallas Texas 75265 Copyright O 2012 Texas Instruments Incorporated IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries TI reserve the right to make corrections enhancements improvements and other changes to its semiconductor products and services per JESD46 latest issue and to discontinue any product or service per JESD48 latest issue Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete All semiconductor products also referred to herein as components are sold subject to Tl s terms and conditions of sale supplied at the time of order acknowledgment TI warrants performance of its components to the specifications applicable at the time of sale in accordance with the warranty in Tl s terms and conditions of sale of semiconductor products Testing and other quality control techniques are used to the extent Tl deems necessary to support this warranty Except where mandated by applicable law testing of all parameters of each component is not necessarily performed TI assumes no liability for applications assistance or the design of Buyers products Buyers are responsible for their products and applications using Tl components To minimize the risks associated with Buyers products and applications Buyers should provide adequate design and operating safeg
20. PK3 PK4 PKS PK6 PK7 PMO_UP EM_SIGNALS PH4 SSI2CLK_OLEDSCLK PH5 SS12FSS_OLEDCS PH6_OLEDD C PH7 SSI2TX OLEDSDIN User Navigation Switches and User LED SWI EMT DOWN PM2 LEFT PM3 RIGHT EMA SELECT WAKE AA R18 D2 PG2 USER LED gt w 330 Green PPO AIN23 MCU ISENSE LM4F232H5QD D1 DIO 1N4448HWS DESIGNER REVISION DATE DAY A 10 26 2012 PROJECT LM4F232H50D Evaluation Kit TEXAS INSTRUMENTS STELLARIS MICROCONTROLLERS 108 WILD BASIN ROAD SUITE 350 AUSTIN TX 78746 DESCRIPTION Microcontroller USB OTG User Switches and LED www ti com stellaris FILENAME Armadillo Rev A sch PART NO EK LM4F232 4 Channel Voltage Logger 0 20V R9 105K 0 1 R4 T 8 gt PEO AIN3 TLV2374PW AM 105K 0 1 E R8 _ _ CONN1X6 TERMBLOCK 3 ie le le le ie R2 14 1 PE1 AIN2 TLV2374PW WW 105K 0 1 3 1 1 PE2 AIN1 TLV2374PW R14 AM 105K 0 1 3 Axis Analog Accelerometer U2 U4 E TLV2374PW TLV2374PW 3 3V 14 gt PE3 AINO gt PE6 AIN21_ACCZ TLV2374
21. PW T ST TEST 1 TLV2374PW 43 0 VREF C70 ph BMA140 0 01UF 12 Le 5 Es F Lew GND Temperature Sensor U3 4 V VOUT 2 GND GND NC TMP20AIDCK U5 E TLV2374PW 7 e gt PE4 AIN9 ACCY gt PES AIN8 ACCX TLV2374PW TLV2374PW 3 3V gt PE7 AIN20 TEMP PA3 SSIOFSS SDCS PAS SSIOTX SDDI PA2 SSIOCLK SDCLK PAA SSIORX S microSD CARD INTERFACE 060 3 3V CR 0 1UF 96X64 RGB OLED Display U6 13V 3 3V H DB4 DB3 DB2 PH7 SSI2TX OLEDSDIN DB1 PH4 SSI2CLK_OLEDSCLK DBO RD E d WR R W PH6 OLEDD C D C PG1_OLEDRST RST PHS SSI2FSS OLEDCS CS RIS 1M ies E 151 VPANEL GND OLED_RGB_CFAL9664B F B1 DESIGNER REVISION DATE DAY A 10 26 2012 PROJECT LM4F232H50D Evaluation Kit DESCRIPTION Logger Temp Sensor OLED SD Card TEXAS INSTRUMENTS STELLARIS MICROCONTROLLERS 108 WILD BASIN ROAD SUITE 350 AUSTIN TX 78746 www ti com stellaris FILENAME x PART NO Armadillo Rev A sch EK LM4F232 Power Select VBUS USB VBUS ICDI VBUS J6 OO CON HDR 2X2 100 5 0V and USB VBUS Load Switch u7 IN
22. RS EE PG4 USBOEPEN USB VBUS Power Enable EN2 PG5 USBOPFLTn Power Fault OC2n In USB Host mode the evaluation board can provide power to the OTG connector The USBOEPEN signal controls the Channel 2 Enable EN2 of a Texas Instruments TPS2052B Load Switch U7 which enables power to the connector s Vays pin The POWER SELECT jumper must be in the ICDP position In Device mode the evaluation board can be powered from either the Stellaris IC Dl or the OTG connectors The user can select the power source by moving the POWER SELECT jumper to the appropriate position In OTG mode the POWER SELECT jumper s position needs special consideration depending on the system and code configuration September 14 2012 Hardware Description User Switches and User LED Five switches on the board provide navigation and selection for the preloaded quickstart application These switches can be used for other purposes in the user s custom applications The evaluation board also has a green user LED Table 2 2 shows how these features are connected to the pins on the microcontroller Table 2 2 User Switches and User LED Signals PMO GPIO SW1 Up PM1 GPIO SW2 Down PM2 GPIO SW3 Left PM3 GPIO SWA Right PM4 GPIO SW5 Select Wake PG2 GPIO User LED GPIO Headers All unused pins on the microcontroller as routed out to 0 1 headers along the edges of the board and are c
23. STn PGO GPIO 13VEN SD Card The EK LM4F232 features a microSD card slot Table 2 9 shows the signals used with the SD card Table 2 9 SD Card Signals PAS SSIOTX DI PA4 SSIORX DO PA3 SSIOFSS CSn PA2 SSIOCLK CLK September 14 2012 15 Stellaris LM4F232 Evaluation Kit User s Manual Hibernate Current Shunts Power Supplies Reset and Crystals Schematic page 3 Hibernate The EK LM4F232 provides a 32 768 kHz crystal Y1 as the clock source for the LM4F232H5QD s Hibernation module clock source It also provides a separate 3 0 V CR2032 lithium coin cell backup battery connected to VBAr that provides power to the Hibernation module when the microcontroller is in Hibernate mode The current draw while in Hibernate mode can be measured indirectly by measuring the voltage across the 1 kQ current shunt resistor See the section Current Shunt Resistors on page 17 for more details Several conditions can generate a wake signal to the Hibernate module waking on a Real time Clock RTC match waking on low battery and or waking on assertion of the WAKE pin The SELECT WAKE switch is connected to the WAKE pin on the microcontroller When the microcontroller is configured to wake on WAKE assertion the switch can be used to wake the part from Hibernate mode The SELECT WAKE switch is also connected to PM4 by way of a diode to prevent PM4 from asserting WAKE when the part enters Hibernate mode See Appendix A S
24. Stellaris LM4F232 Evaluation Board User s Manual Xi TEXAS INSTRUMENTS EK LM4F232 UM 02 Copyright O 2012 Texas Instruments Copyright Copyright O 2011 Texas Instruments Inc All rights reserved Stellaris and StellarisWare are registered trademarks of Texas Instruments ARM and Thumb are registered trademarks and Cortex is a trademark of ARM Limited Other names and brands may be claimed as the property of others Texas Instruments 108 Wild Basin Suite 350 Austin TX 78746 7 m m m m MH http www ti com stellaris l To MENTE Cort tex Intelligent Processors by ARM a HER D 2 September 14 2012 Table of Contents Chapter 1 Board OvervieW iomocincionioniinnici ci deseecedeueescsnnceedcucdeecesteeeaderssucenestieess 6 Kit Contents cect cierto Ehe e iR PEE REG a LE us 6 Usingrthe EKSEMAE232 ehe taco ee RD pide tt E e ERI ete 7 unm t 7 Toeter oe 16 fk er ue ETE 8 Chapter 2 Hardware Description ssenenennnnnnenennneneenenennennnennenss 9 Functional Descriptio its an A ten eet te mte tede e eres 10 Microcontroller USB OTG User Navigation Switches User LED and GPIO Headers Schematic page Tener a iR te tete esent tebe er oen antenna 10 Data Logger Accelerometer Temperature Sensor OLED and SD Card Schematic page 2 11 Hibernate Current Shunts Power Supplies Reset and Crystals Schematic page 3
25. TR Keystone 3002TR 2 C2 C5 C8 C12 C17 27 Capacitor 0 1uF 50V 10 0603 X7R Murata GRM188R71H104 C34 36 C40 C42 43 KA93D C45 C48 50 C52 C55 57 C59 60 C63 C71 75 3 C20 1 Capacitor 820pF 50V 5 0603 TDK C1608C0G1H821J COG 4 C23 C26 27 3 Capacitor 10uF 50V 20 80 Murata GRM32DF51H106 1210 Y5V ZAO1L 5 C29 C28 2 Capacitor 24pF 50V 596 0603 TDK C1608C0G1H240J COG 6 C31 32 C64 65 4 Capacitor 10pF 50V 596 Ceramic Kemet C0603C100J5GAC NPO COG 0603 TU Kemet C0603C100J5RAC TU 7 C33 1 Capacitor 200pF 50V 5 0603 TDK C1608C0G1H201J COG 8 C41 C37 39 C70 8 Capacitor 0 01uF 50V 5 0603 X7R Kemet C0603C103J5RAC C18 C61 62 TU 9 C58 C1 C3 4 C13 16 19 Capacitor 1 0uF 25V 1096 X5R 0603 TDK C1608X5R1E105K C19 C21 22 C24 25 C44 C46 47 C53 54 C76 TDK C1608X5R1E105K 10 C6 7 C68 69 4 Capacitor 120pF 50V 5 0603 TDK C1608C0G1H121J COG 11 C9 11 3 Capacitor 4 7uF 25V 1096 0805 X5R Murata GRM21BR61E475 KA12L 12 D1 D6 2 Diode Fast Switching 80V 250mA Diodes Inc 1N4448HWS 7 F SOD 323 September 14 2012 29 Stellaris LM4F232 Evaluation Kit User s Manual Table C 1 EK LM4F232 Bill of Materials BOM Continued 30 13 D2 D4 5 3 LED Green 565nm Clear 0805 SMD Lite On LTST C171GKT Lite On LTST C171GKT 14 D3 1 Diode Schottky 20V 1A Taiwan SS12 Semiconduc tor 15 J1 1 Header 2x5 0 050 SM Vertical Samtec SHF 105 01 S D S Shrouded M Don Con
26. The companion application provides a strip chart display for up to 10 channels of data from the EK LM4F232 evaluation board You can enable or disable the display for each channel and log the data to a comma separated values CSV file Source Code The complete source code is included on the EK LM4F232 CD including the source code for the Windows quickstart companion application See the README First document for a detailed description of hardware setup and how to install the source code The source code and binary files are installed in the StellarisWare software tree Tool Options The source code installation includes directories containing projects and or makefiles for the following tool chains Keil ARM RealView Microcontroller Development System IAR Embedded Workbench for ARM Sourcery CodeBench Code Red Technology Red Suite Generic Gnu C compiler Texas Instruments Code Composer Studio IDE Download evaluation versions of these tools from www ti com stellaris Due to code size restrictions the evaluation tools may not build all example programs A full license is necessary to re build or debug all examples Instructions on installing and using each of the evaluation tools can be found in the Quickstart guides for example Quickstart Keil Quickstart IAR which are available for download from the evaluation kit section of our web site at www ti com stellaris For detailed information on using the tools see the document
27. ation included in the tool chain installation or visit the web site of the tools supplier September 14 2012 20 Software Development Programming the EK LM4F232 Board The EK LM4F232 software package includes pre built binaries for each of the example applications If you installed the StellarisWare software to the default installation path of C StellarisWare you can find the example applications in C StellarisWare boards ek Im4f232 The on board Stellaris ICDI is used with the Stellaris LM Flash Programmer tool to program applications on the EK LM4F232 board Follow these steps to program example applications into the EK LM4F232 evaluation board using the Stellaris ICDI 1 m RON Install LM Flash Programmer on a Windows PC Connect the USB A cable plug to an available port on the PC and the Mini B plug to the board Verify that the POWER LED D4 on the board is lit Run LM Flash Programmer In the Configuration tab use the Quick Set control to select the EK LM4F232 evaluation board Move to the Program tab and click the Browse button Navigate to the example applications directory the default location is C StellarisWare boards ek Im4f232 Each example application has its own directory Navigate to the example directory that you want to load and then into the directory which contains the binary bin files Select the binary file and click Open Set the Erase Method to Erase Necessary Pages check the
28. ay not be subject to the Federal Communications Commission FCC and Industry Canada IC rules For EVMs not subject to the above rules this evaluation board kit module is intended for use for ENGINEERING DEVELOPMENT DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer use It generates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio frequency interference Operation of the equipment may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required to correct this interference General Statement for EVMs including a radio User Power Frequency Use Obligations This radio is intended for development professional use only in legally allocated frequency and power limits Any use of radio frequencies and or power availability of this EVM and its development application s must comply with local laws governing radio spectrum allocation and power limits for this evaluation module It is the user s sole responsibility to only operate this radio in legally acceptable frequency space and within legally mandated power limitations Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has
29. ble leakage currents to minimize the risk of electrical shock hazard 3 You will employ reasonable safeguards to ensure that your use of the EVM will not result in any property damage injury or death even if the EVM should fail to perform as described or expected 4 You will take care of proper disposal and recycling of the EVM s electronic components and packing materials Certain Instructions It is important to operate this EVM within T s recommended specifications and environmental considerations per the user guidelines Exceeding the specified EVM ratings including but not limited to input and output voltage current power and environmental ranges may cause property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and intended loads Any loads applied outside of the specified output range may result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Please consult the EVM User s Guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 60 C as long as the input and output are maintained at a normal ambient operating temperature These components include but are not l
30. blication DS LMAF232H5QD W StellarisWare Driver Library W StellarisWare Driver Library User s Manual publication SW DRL UG Additional references include 12 5 Low Power Analog Out Temperature Sensor Data Sheet TMP20 Voltage Output High Side Measurement Current Shunt Monitor Data Sheet INA 198 Low Noise Very Low Drift Precision Voltage Reference Data Sheet REF5030 Current Limited Power Distribution Switches Data Sheet TPS2052B Single Voltage Detector Data Sheet TPS3803 01 The following data sheet can be obtained from the manufacturer W Bosch Sensortec Triaxial Analog Acceleration Sensor Data Sheet BMA 140 Information on development tool being used B RealView MDK web site www keil com arm rvmdkkit asp E AR Embedded Workbench web site www iar com W Sourcery CodeBench development tools web site www codesourcery com gnu_toolchains arm Code Red Technologies development tools web site www code red tech com Texas Instruments Code Composer Studio IDE web site www ti com ccs September 14 2012 33 EVALUATION BOARD KIT MODULE EVM ADDITIONAL TERMS Texas Instruments TI provides the enclosed Evaluation Board Kit Module EVM under the following conditions The user assumes all responsibility and liability for proper and safe handling of the goods Further the user indemnifies TI from all claims arising from the handling or use of the goods Should this evaluation board kit not meet the specification
31. chematics on page 22 for details To achieve the lowest power consumption while in Hibernate mode the HIB signal is connected to the Channel 1 Enable EN1 signal of the Texas Instruments TPS2052B load switch U7 In Hibernate mode the HIB signal is asserted and the load switch cuts main power to the entire board including the on board Stellaris ICDI The Hibernation module is powered solely by the back up battery The EK LMAF232 has additional circuitry that allows the evaluation board to be turned on even when a battery is not present or when the battery voltage is too low A Texas Instruments TPS3803 01 Voltage Detector U12 monitors VBAr and produces a V amp 4 coop Signal when the battery voltage is above 2 1 V Using standard logic gates and the state of Vgar and Von the HIB signal can be forced high when VBAr is not valid and the microcontroller is not already powered With this circuit a USB powered board can turn itself on when the back up battery is either missing or fully discharged See Appendix A Schematics on page 22 for more details This additional circuitry may not be needed in all applications For example a device powered by one main battery that doubles as the back up battery does not need this circuit Or when using the Hibernate module in VDD3ON mode power is cut to the microcontroller internally which eliminates the need to use HTB to turn off an external supply There are many differ
32. e applications are loaded using the on board Stellaris In Circuit Debug Interface ICDI See Chapter 3 Software Development on page 20 for the programming procedure The StellarisWare Peripheral Driver Library Software Reference Manual contains specific information on software structure and function 3 Customize and integrate the hardware to suit an end application This user s manual is an important reference for understanding circuit operation and completing hardware modification Features The EK LM4F232 evaluation kit includes the following features E Stellaris LM4F232H5QD microcontroller W Data logger demo application September 14 2012 6 screw terminals 4analog inputs 0 20 V Power Ground 3 axis analog accelerometer 2 Analog temperature sensors External TMP20 temperature sensor Internal microcontroller temperature sensor Microcontroller current shunt amplifier Stellaris LM4F232 Evaluation Kit User s Manual 96 x 64 color OLED display USB Micro AB connector for Host Device OTG microSD card slot 5 user navigation switches User LED Precision 3 0 V reference Available I O brought out to headers on 0 1 grid Debug Stellaris amp In Circuit Debug Interface ICDI Standard 10 pin JTAG header Shunt resistors to measure current on Vga and Vpp Coin cell backup battery for Hibernate mode Reset button Specifications Table 1 1 shows the specifications for the EK LM4F232 e
33. ent ways that Hibernate mode can be implemented in an embedded system Each implementation requires its own special design considerations 1 Ifthe board does not turn on when you connect it to a power source the microcontroller might be in Hibernate mode depending N 16 on the programmed application You must satisfy one of the programmed wake conditions and connect the power to bring the microcontroller out of Hibernate mode and turn on the board If you remove power to the on board Stellaris ICDI the Stellaris ICDI disconnects from the attached PC and your IDE If you are debugging an application when the microcontroller enters Hibernate mode the IDE might exhibit unwanted behaviors due to the sudden loss of the Stellaris ICDI If you are using an externally powered debugger the connection between the debugger and the PC should not be affected Regardless of the debugger setup the JTAG module in the microcontroller is turned off when the device is in Hibernation mode which means the debugger cannot communicate to the target microcontroller See the LM4F232H5QD data sheet for more information about the microcontroller s state in Hibernate mode September 14 2012 Hardware Description Current Shunt Resistors Clocking Reset The evaluation board provides two current shunt resistors to measure the microcontroller running current Ipp and the Hibernation mode battery current Igat IDD can be measured by the microcontrol
34. ic ERJ 3EKF2203V SMD Thick 33 R32 33 2 Resistor 1K OHM 1 10W 1 0603 Panasonic ERJ 3EKF1001V Thick 34 R34 1 Resistor 0 1 Ohm 1 10W 1 0603 Panasonic ERJ 3RSFR10V Thick 35 R40 1 Resistor 9 1K OHM 1 10W 1 0603 Panasonic ERJ 3EKF9101V Thick 36 R41 1 Resistor 49 9 OHM 1 10W 196 0603 Panasonic ERJ 3EKF49R9V Thick 37 R5 7 R11 R15 15 Resistor 10K OHM 1 10W 5 0603 Panasonic ERJ 3GEYJ103V R20 23 R28 R35 39 SMD 38 SW1 6 6 Switch Tact 6mm SMT 160gf Omron B3S 1000 39 U1 1 Stellaris LM4F232H5QDFIGA1 Texas LM4F232H5QDFIG Instruments A1 40 U10 1 Regulator 2 3V 6V in 18 5Vout Texas TPS61085PW max 2 0A Instruments 41 U12 1 IC Single Voltage Detector Texas TPS3803 01DCKR Adjustable 5 SC70 DCK Instruments 42 U13 1 IC Single 2 input OR Gate Texas SN74AHCT1G32D 5SOT DRL Instruments RLR 43 U14 1 IC Single Tri state Buffer SC70 5 Texas SN74AHC1G125D DCK Instruments CKR 44 U15 1 Current Shunt Monitor INA198 Texas INA198AIDBVR 100V V Gain 5SOP DBV Instruments 45 U16 1 Stellaris MCU LM3S3601 Texas LM3S3601 IQR50 Instruments 46 U2 1 IC 3 Axis Analog Accelerometer Bosch BMA140 4g Sensortec 47 U3 1 IC Analog Temperature Sensor 55C Texas TMP20AIDCKR to 130C 2 5C 5 SC70 DCK Instruments 48 U4 5 2 Op Amp 3 MHz Quad Rail to Rail Texas TLV2374IPWR 14TSSOP Instruments 49 U6 1 OLED Display 96x64 RGB Crystalfontz CFAL9664B F B1 50 U7 1 Fault protected power switch dual Texas TPS2052BDRBR channel 8 SON Instruments
35. imited to linear regulators switching transistors pass transistors and current sense resistors which can be identified using the EVM schematic located in the EVM User s Guide When placing measurement probes near these devices during normal operation please be aware that these devices may be very warm to the touch As with all electronic evaluation tools only qualified personnel knowledgeable in electronic measurement and diagnostics normally found in development environments should use these EVMs Agreement to Defend Indemnify and Hold Harmless You agree to defend indemnify and hold TI its licensors and their representatives harmless from and against any and all claims damages losses expenses costs and liabilities collectively Claims arising out of or in connection with any use of the EVM that is not in accordance with the terms of the agreement This obligation shall apply whether Claims arise under law of tort or contract or any other legal theory and even if the EVM fails to perform as described or expected Safety Critical or Life Critical Applications If you intend to evaluate the components for possible use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death such as devices which are classified as FDA Class III or similar classification then you must specifically notify TI of such intent and enter into a separate Assurance and
36. is solely at the Buyer s risk and that Buyer is solely responsible for compliance with all legal and regulatory requirements in connection with such use TI has specifically designated certain components which meet ISO TS16949 requirements mainly for automotive use Components which have not been so designated are neither designed nor intended for automotive use and TI will not be responsible for any failure of such components to meet such requirements Products Applications Audio www ti com audio Automotive and Transportation www ti com automotive Amplifiers amplifier ti com Communications and Telecom www ti com communications Data Converters DLP Products DSP Clocks and Timers Interface Logic Power Mgmt Microcontrollers RFID OMAP Applications Processors Wireless Connectivity dataconverter ti com www dlp com www ti com clocks interface ti com logic ti com microcontroller ti com www ti rfid com www ti com omap Computers and Peripherals Consumer Electronics Energy and Lighting Industrial Medical Security Space Avionics and Defense Video and Imaging TI E2E Community www ti com wirelessconnectivity www ti com computers www ti com consumer apps www ti com energy www ti com industrial www ti com medical www ti com security www ti com space avionics defense www ti com video Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2012
37. ler through a Texas Instruments INA198 Current Shunt Amplifier U15 See Microcontroller Running Current IDD on page 17 Igay must be measured externally Microcontroller Running Current Ipp The shunt resistor for Ipp Ryppsuuwr is 0 1 Ohms and the INA198 amplifier gain is 100 V V Therefore I I Po Vers DD R 0 1 VDDSHUNT E Vis ES a d Gain Vos 2 100 Given the ADC measurement you can calculate lpp Le IT V ppsnuwr 100 Vive m OR 0 1 10 VDDSHUNT Or simply 10 mV per mA Hibernation Mode Battery Current Igat The shunt resistor for Igar RygatsHunt is 1 kOhm Kaazen Kaum BAT Rysarsuunr 1000 Or simply 1 mV per pA The EK LM4F232 uses a 16 0 MHz crystal Y2 to complete the LM4F232H5QD microcontroller s main internal clock circuit An internal PLL configured in software multiples this clock to higher frequencies for core and peripheral timing The Hibernation module is clocked from an external 32 768 kHz crystal Y1 The RESET signal into the LM4F232H5QD microcontroller connects to the RESET switch and to the Stellaris ICDI circuit for a debugger controlled reset External reset is asserted active low under any one of these conditions B Power on reset W RESET switch held down W By the Stellaris ICDI circuit when instructed by the debugger this capability is optional and may not be supported by all debuggers September 14 2012 17 Stellaris LM4F232 E
38. mpedance source for the microcontroller s ADC Table 2 4 shows which microcontroller pins are used for the accelerometer Table 2 4 3 Axis Analog Accelerometer Signals PES AIN8 Ax PE4 AIN9 Ay PE6 AIN21 Az The following equations from the Bosch Sensortec Triaxial Analog Acceleration Sensor Data Sheet BMA 140 define the sensor output Ax Ay and A in volts based on the acceleration vector in each direction ax ay and az in g s and the sensor sensitivity S in V g All three axes share the same relation therefore only the equation for the X axis is shown S Von 0 3v 10 V A le exa 1 5V cava Given the code read from the ADC the acceleration vector can be calculated as follows A M ie ne ADCCODE n x ADCCODE 0 7326mV x ADCCODE m cor A RE d _ 0 002442 x ADCCODE 5 For example if the code read from the ADC on A is 2457 the acceleration measured is a 0 002442 x ADCCODE 5 0 002442 x 2457 5 1g See the Bosch Sensortec Triaxial Analog Acceleration Sensor Data Sheet BMA 140 for more information about the accelerometer Temperature Sensors Temperature can be measured by the Texas Instruments TMP20 Analog Temperature Sensor U3 and or the internal microcontroller temperature sensor External TMP20 Temperature Sensor The output of the sensor is passed through a unity gain amplifier to provide a low impedance source for the microcontroller s ADC Table 2 5 shows the
39. nditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of the device Concerning EVMs including detachable antennas Under Industry Canada regulations this radio transmitter may only operate using an antenna of a type and maximum or lesser gain approved for the transmitter by Industry Canada To reduce potential radio interference to other users the antenna type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Cet appareil num rique de la classe A ou B est conforme la norme NMB 003 du Canada Les changements ou les modifications pas express ment approuv s par la partie responsable de la conformit ont pu vider l autorit de l utilisateur pour actionner l quipement Concernant les EVMs avec appareils radio Le pr sent appareil est conforme aux CNR d Industrie Canada applicables aux appareils radio exempts de licence L exploitation est autoris e aux deux c
40. nex C44 10BSA1 G Electronics 16 J2 1 Connector USB micro AB Hirose ZX62 AB 5PA Receptacle SMD 17 J3 1 Terminal Screw 5mm 6 Pos Molex 0395430006 Molex 0395430006 18 J5 1 Connector Micro SD card push push 3M 2908 05WB MG SMT 19 J6 1 Header 2x2 0 100 T Hole Vertical FCI 67997 104HLF Unshrouded 0 230 Mate 4UCON 00998 20 J8 1 Connector USB Mini B SMT 5pin Molex 54819 0572 21 L1 1 Inductor 3 3uH SMD 6mm x 6mm Panasonic ELL 6PG3R3N 1 7A 0 044 Ohm 22 R1 R43 2 Resistor 0 OHM 1 10W 0603 SMD Panasonic ERJ 3GEYOROOV 23 R12 1 Resistor 20K OHM 1 10W 596 0603 Yageo RC0603JR 0720KL Thick 24 R13 R19 2 Resistor 1M OHM 1 10W 596 0603 Panasonic ERJ 3GEYJ105V SMD 25 R2 R4 R9 R14 4 Resistor 105 0K Ohm 1 10W 0 196 Susumu RG1608P 1053 B 0603 Thin T5 26 R24 1 Resistor 36 5K Ohm 1 10W 1 Yageo RC0603FR 0736K5 0603 Thick L 27 R25 1 Resistor 174K Ohm 1 10W 1 Yageo RC0603FR 07174K 0603 Thick L 28 R26 R10 R8 R3 R17 5 Resistor 18 00K Ohm 1 10W 0 196 Panasonic ERA 3AEB183V 0603 Thin 29 R27 R18 R42 3 Resistor 330 OHM 1 10W 596 0603 Panasonic ERJ 3GEYJ331V SMD 30 R29 1 Resistor 9 53M Ohm 1 10W 1 Vishay CRCWO06039M53F 0603 Thick KEA September 14 2012 Table C 1 EK LM4F232 Bill of Materials BOM Continued 31 R30 1 Resistor 6 8M Ohm 1 10W 5 Yageo RC0603JR 076M8 0603 Thick L 32 R31 1 Resistor 220K Ohm 1 10W 1 Panason
41. onditions suivantes 1 l appareil ne doit pas produire de brouillage et 2 l utilisateur de l appareil doit accepter tout brouillage radio lectrique subi m me si le brouillage est susceptible d en compromettre le fonctionnement Concernant les EVMs avec antennes d tachables Conform ment la r glementation d Industrie Canada le pr sent metteur radio peut fonctionner avec une antenne d un type et d un gain maximal ou inf rieur approuv pour l metteur par Industrie Canada Dans le but de r duire les risques de brouillage radio lectrique l intention des autres utilisateurs il faut choisir le type d antenne et son gain de sorte que la puissance isotrope rayonn e quivalente p i r e ne d passe pas l intensit n cessaire l tablissement d une communication satisfaisante Le pr sent metteur radio a t approuv par Industrie Canada pour fonctionner avec les types d antenne num r s dans le manuel d usage et ayant un gain admissible maximal et l imp dance requise pour chaque type d antenne Les types d antenne non inclus dans cette liste ou dont le gain est sup rieur au gain maximal indiqu sont strictement interdits pour l exploitation de l metteur Important Notice for Users of this Product in Japan This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan you are required by Radio Law of Japan to follow the instructions below wi
42. onveniently labeled with their port and pin names The remaining pins are broken out to headers located near the hardware feature that uses them These are also on a 0 1 grid All of these headers are labeled with the port and pin name and where possible labeled with their function See Schematics on page 22 for detailed information on these signals Data Logger Accelerometer Temperature Sensor OLED and SD Card Schematic page 2 Data Logger The EK LM4F232 comes with a quickstart application loaded into the Flash memory This application implements a multi channel data logger which can measure up to four analog channels 0 20 V a three axis analog accelerometer two analog temperature sensors and the microcontroller running current A Windows quickstart companion application is also provided on the evaluation kit CD and serves as a secondary display for the Data Logger application See the Software Description on page 20 for more information 4 Channel Analog Measurement A 6 position screw terminal block is included on the evaluation board to make easy connections to external signals Table 2 3 shows how the screw terminals and channels are arranged September 14 2012 11 Stellaris LM4F232 Evaluation Kit User s Manual 12 Table 2 3 4 Channel Analog Measurement Signals S VBUS PEO AIN3 CH3 PE1 AIN2 CH2 PE2 AIN1 CH1 PE3 AINO CHO GND Each of the 4 channels can measure 0 20 V with
43. operation The temperature sensor can be sampled internally by the ADC Given the ADC reading the internal temperature T in C can be calculated as follows taken from the LM4F232H5QD data sheet T 147 5 225x ADCCODE 4095 See the LM4F232H5QD data sheet for more information on the internal microcontroller temperature sensor Microcontroller Running Current The microcontroller running current Ipp can be measured by the microcontroller itself The output of a Texas Instruments INA198 Current Shunt Amplifier U15 is connected to the ADC on the microcontroller This amplifier increases the voltage drop on a 0 1 Ohm current shunt resistor in September 14 2012 Hardware Description line with the Vpp source for the microcontroller Table 2 7 shows the signal used to measure the amplifier output Table 2 7 Microcontroller Running Current Signals PPO AIN23 OUT See Current Shunt Resistors on page 17 for more details on calculating the running current from the ADC readings OLED Display The evaluation board includes a 96 x 64 color Organic LED OLED display The OLED display is powered from the on board 13 V regulator which has to be enabled before using the display Data is written to the display using the SSI2 peripheral Table 2 8 shows the signals used by the display Table 2 8 OLED Display Signals PH7 SSI2TX SDIN PH5 SSI2FSS CSn PH4 SSI2CLK SCLK PH6 GPIO D Cn PG1 GPIO R
44. r Feasibility Evaluation Only in Laboratory Development Environments Unless otherwise indicated this EVM is not a finished electrical equipment and not intended for consumer use lt is intended solely for use for preliminary feasibility evaluation in laboratory development environments by technically qualified electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components systems and subsystems It should not be used as all or part of a finished end product Your Sole Responsibility and Risk You acknowledge represent and agree that 1 You have unique knowledge concerning Federal State and local regulatory requirements including but not limited to Food and Drug Administration regulations if applicable which relate to your products and which relate to your use and or that of your employees affiliates contractors or designees of the EVM for evaluation testing and other purposes 2 You have full and exclusive responsibility to assure the safety and compliance of your products with all such laws and other applicable regulatory requirements and also to assure the safety of any activities to be conducted by you and or your employees affiliates contractors or designees using the EVM Further you are responsible to assure that any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessi
45. s indicated in the User s Guide the board kit may be returned within 30 days from the date of delivery for a full refund THE FOREGOING LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED IMPLIED OR STATUTORY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES Please read the User s Guide and specifically the Warnings and Restrictions notice in the User s Guide prior to handling the product This notice contains important safety information about temperatures and voltages For additional information on Tl s environmental and or safety programs please visit www ti com esh or contact TI No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine process or combination in which such TI products or services might be or are used TI currently deals with a variety of customers for products and therefore our arrangement with the user is not exclusive TI assumes no liability for applications assistance customer product design software performance or infringement of patents or services described herein REGULATORY COMPLIANCE INFORMATION As noted in the EVM User s Guide and or EVM itself this EVM and or accompanying hardware may or m
46. signal used by the temperature sensor Table 2 5 Temperature Sensor GPIO PE7 AIN20 Voir September 14 2012 13 Stellaris LM4F232 Evaluation Kit User s Manual Table 2 6 The sensor s analog output over the 55 C to 130 C temperature range corresponds to the parabolic transfer function taken from the TMP20 data sheet Vour 3 8810 x T 1 15x107 xT 1 8639V Where the temperature T is in C Solving for temperature results in the following equation T 1481 96 2 19262 x 10 1 8639 V 3 88x107 When only concerned with a narrow temperature range a linear transfer function can be calculated See the 2 5 Low Power Analog Out Temperature Sensor Data Sheet TMP20 for these calculations Table 2 6 shows the linear transfer functions for a common selection of temperature ranges Linear Transfer Functions for Common Temperature Ranges 55 130 Vout 11 79mV C x T 1 8528 141 40 110 Vout 11 77mV C x T 1 8577 0 93 30 100 Vout 11 77mV C x T 1 8605 0 70 40 85 Vout 11 67mV C x T 1 8583 0 65 10 65 Vout 11 71mV C x T 1 8641 0 23 35 45 Vout 11 81mV C x T 1 8701 0 004 20 30 Vour 11 69mV C x T 1 8663 0 004 14 Internal Microcontroller Temperature Sensor The LM4F232H5QD microcontroller has an internal temperature sensor that can be used to notify the system that the internal temperature is too high or low for reliable
47. th respect to this product 1 Use this product in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use this product only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product or 3 Use of this product only after you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to this product Also please do not transfer this product unless you give the same notice above to the transferee Please note that if you could not follow the instructions above you will be subject to penalties of Radio Law of Japan Texas Instruments Japan Limited address 24 1 Nishi Shinjuku 6 chome Shinjuku ku Tokyo Japan http www tij co jp ZEATE T FAREY Mx EEXEXS UE FARRO CHBRICERU CIE BREBTOL HO LFOUTHAOBBEM TULE DEFEN ETN CCHRB lt K CS LA 1 BRAT RUSSE ARS CET XE RLI8ES H28 AMBER 735 CEOSHLEREESO MBM CORE AN TIE IE 2 SERIO SEREEBUS C BRIU IEEE 3 EME GEB EREKTA 238 ARE 1320 TEAC TOR ARA BEAIBALZURY BE B T SUEDELRT Lote End ER OMAM R amp Na NEEND eE TAERE BATEA EECHER mBGAMWUHIXPSEHROIE24915 ECKE EE http www tij co jp EVALUATION BOARD KIT MODULE EVM WARNINGS RESTRICTIONS AND DISCLAIMERS Fo
48. uards TI does not warrant or represent that any license either express or implied is granted under any patent right copyright mask work right or other intellectual property right relating to any combination machine or process in which TI components or services are used Information published by TI regarding third party products or services does not constitute a license to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties conditions limitations and notices TI is not responsible or liable for such altered documentation Information of third parties may be subject to additional restrictions Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice Tl is not responsible or liable for any such statements Buyer acknowledges and agrees that it is solely responsible for compliance with all legal regulatory and safety related
49. valuation Kit User s Manual The OLED display has special reset timing requirements requiring a dedicated control line from the microcontroller Power Supplies and Jumper The EK LM4F232 can be powered from one of two power sources E Stellaris ICDI USB cable default USB OTG cable A moveable jumper shunt on the POWER SELECT headers is used to select one of the two power sources Only one source should be selected at a time See USB Host Device OTG on page 10 for the recommended jumper positions for the specific USB modes The evaluation board is designed to provide power to a limited amount of external circuitry Table 2 10 shows the board s power requirements and Table 2 11 shows the board s breakout requirements Table 2 10 Power Requirements ICDI USB Cable 4 75 5 0 5 25 V USB OTG Cable Table 2 11 Breakout Requirements 3 8 V 260 mA 3 3 V 260 mA OLED on 350 mA 5 0 ab 3 3 V 260 mA OLED off 380 mA a This represents the 5 0 V breakout and the Vpys breakout Total current lv lygus b 5 0 V is switched by the load switch U7 however Vpys is always connected Debug and Virtual COM Port Schematic Page 4 Stellaris In Circuit Debug Interface ICDI and Virtual COM Port 18 The EK LM4F232 evaluation board comes with an on board Stellaris In Circuit Debug Interface ICDI The Stellaris ICDI allows for the programming and debug of the LM4F232
50. valuation board Table 1 1 EK LM4F232 Specifications Board supply voltage 4 75 5 25 V Dimensions 6 0 x 2 25 x 0 84 LXWxH RoHS status Compliant 8 September 14 2012 Hardware Description The EK LM4F232 evaluation board includes a Stellaris LM4F232H5QD microcontroller and an integrated Stellaris In Circuit Debug Interface ICDI as well as a range of useful peripheral features see the block diagram in Figure 2 1 This chapter describes how these peripherals operate and interface to the microcontroller Figure 2 1 EK LM4F232 Evaluation Board Block Diagram Chipcon Wireless Evaluation Module Connector Temp Not Installed Sensor AIN20 pbo o VREFA S 5 MicroSD er icro Ref n gt Card Slot USB OTG pm AIN3 Connector 4 Screw 2 p gt AIN2 13V Terminals E p gt AIN1 g A gt AINO ICDI USB 96 E x 64 ES gt Color OLED Display Power Battery LM4F232H5QDFIGA1 Select Jumper a 2 gt VBAT 3 3V 2 LDO Re gt ER w Te Te Dual e oer Power 2 9 Switch 13V 13V SE Nav User Bei Boost PF L AIN23 Switches HIB USBOEPEN O a OO User LED Ew 1 0 Le Si GPIO M Stellaris Soy VUE ICDI ee ZZZ UARTO OO lt lt lt tit 50000 QOOOO 3
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