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UM10798 - NXP Semiconductors

1. 4 2 3 4 2 3 1 4 2 3 2 4 2 3 3 UM10798 Power requirements Input power The board is powered by a 12 V power supply connected to power connector labeled 12V J1 The polarity is positive for the center terminal and negative for the shield connection The 12 V supply is required for the 5 V regulator the motor and its drive circuits The current requirements for the 12 V power supply depend on the motor being driven A 12 V and 0 5 A supply was specified for this application using small stepper motors A Nippon Pulse PF35T 48 Series stepper motor is used for the initial demo 5 V regulator An LM317MB linear regulator is used to supply the 5 volts that is required for the PCA9629A stepper motor controller and the 3 3 V regulator 3 3 V regulator A TDA3663 is used to supply the 3 3 V power required by the LPCXpresso daughter board and the LPC1343 on the LPCXpresso board All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 10 of 35 NXP Semiconductors UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 4 2 4 Jumpers headers and test point locations The locations of the jumpers header connectors and test points on the PCA9629A demo board are shown in Figure 4 and their functions are described in Table 3 ie 5 JP6 a A z wintzc T E
2. 200000ee eee On board visual LED indicators On board switches Power requirements 055 Input power 6 0 0 c ee eee eee 5 Vreguiator 0 0 eee ee eee 3 3 V regulator 2 04 Jumpers headers and test point locations Stepper motor board Demo setup and operation PCA9629A stepper motor controller demo Setup 2 eee eee eee Firmware overview CMSIS V1 3 and start up modules PCA9629A _config h 0 008 PCA9629A_main c module io_interface c io_interface n i2c_abstraction c and i2c_abstraction h I2C c and I2C h modules GPIO c GPIO h systick c systick h timer16b_0 c and timer16b_O0 h 7 Programming the demo board 20 7 1 Programming the PCA9629A demo board Via USB eee e r de ae dara tees 20 7 2 Programming and debugging the PCA9629A demo board via LPC Link USB interface 21 7 3 Programming the PCA9629A demo board Via RO 2282 raea needa Ae ia eed eat 23 8 SUPPOMt sss eddie ees Oren de eee eee ees 25 9 Appendix A PCA9629A_config h 26 10 Appendix B Schematics 28 11 Abbreviations 20 0200ee eens 33 12 References 200ce cece eee eeee 33 13 Legal information 200 e eee eee 34 13 1 Definitions 20 0000005 34 13 2 Disclaimers 02000000e ee eee 34
3. Overview copyrights author version History 2013 2013 2013 2013 2013 2013 05 06 06 06 07 08 NXP Semiconductors 2010 2011 2013 Tedd OKANO NXP Semiconductors 0 6 22 Aug 2013 31 ver 03 ver 05 ver 10 ver 10 ver 22 ver oo ooo oo Doe WHE PCA9629A demo code based on PCA9629 demo v 2 01 speed switching demo added register name fix Phase mode change button bug fix PCA9629_all_register_init function updated to fix phase mode problem GPO operation mode added code cleaning done This has all the defines and motor control parameters for the PCA9629A demo application The stepper motor parameters entered are for a Nippon Pulse motor but could be changed to adapt the demo to other motors yf enum def def def def def def def def def def def def def def def Application parameters defines the behavior ine STEPS_CW ine STEPS_CCW ine PCA9629_0 ine PCA9629_1 ine PCA9629_2 ine PCA9629_3 ine PCA9629_4 ine PCA9629_5 ine PCA9629_6 ine PCA9629_7 ine PCA9629_8 ine PCA9629_9 ine CW 0 ine CCW 1 ine I2C_BUFSIZE 38 FULLSTEP HALFSTEP TWOPHASE PhaseMode PCA9629 registers enum UM10798 0x0C 0x0C 0x42 0x44 0x46 0x48 Ox4A 0x4C Ox4E 0x50 0x52 0x54 All information provided in this document is subject to legal disclaimers lt step count for fixed
4. CMSISV1p30_LPC13xx Sap 4 oan i 2OMessages c 2 PCA9629 config h 10 9629_main c Ipexpresso_9629_jo 9629_main c w Welcome f amp gpio Sia TRAIT CT WOSaTT a eRe fF Hf apeeeesseseseceesassosssocoeeeseosepeccesnecesorececeneessorose recoece PCAI629DemoV4 int main roid Bown b i eb rs485 7 n a BS ssp amp ted systick Suat 1 eserai GIO be SS usbede eit gt a amp usbhid x E usbhid_romn Sauchhid nama timu pl W Variables Breakpoints 2 Outline Start here i New project gt app totest Import Example projects Build alt projects Debug 4 Build PCA9629DemoV4 Debug Z Clean PCA9629Demo 4 Debug apabilinnabicseosis Debug PCAIE29DemoV4 Debug A W Quick Settings Consote Problems O Memory Red Trace Preview saita r n C Build PCAS6290emoVv4 E Debug and Run Extras ot it PCAQG29Demoy4 NXP LBC1343 start s Inbox Mico ipo PCAI629 Se develop aaa 01359 amp A Project Explorer View gives you a view of all the projects in your current Workspace A Workspace is a collection of projects B Quickstart Panel has fast links to commonly used features This panel is the best place to go to find options such as Build Debug and Import C Debug View shows you the stack trace and the debug toolbar D Editor View is the editor that allows modification and
5. NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 6 Copy the new PCA9629ADemo bin binary file and Past to this window as displayed below then close this window and safely remove the USB device gQ gt Computer gt CRP DISABLD Organize a Open Burn amp Favorites a I Ubraries PCA9629A Demo WA Computer Copy and Paste the new binary file ra Network PCA9629ADemo Date modified 7 10 2013 4 03 PM 7 lt BIN File Size 11 6 KB aaa 013594 7 To start execution of the new programmed firmware file remove the jumper from JP_ISP and cycle the 12 V power on the demo board After the code is updated it is renamed firmware bin Also note that the size of the code listed for the device is always 32 K for the LPC 1343 This is because the total size of the on board flash memory is what determines the size reported by the device even if the size of the programmed firmware is much smaller as indicated by the size of the file to program 7 2 Programming and debugging the PCA9629A demo board via LPC Link USB interface The hardware consists of the LPCXpresso development board which has an LPC Link debug interface and an NXP LPC ARM based microcontroller target LPCXpresso is an end to end solution enabling embedded engineers to develop their applications from initial evaluation to final production The LPCXpresso IDE is free for download
6. User manual Rev 1 17 June 2014 17 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 Functions of MODE2_S5 UserCustomFunction MODE2_S6_UserCustomFunction and MODE2_S7_UserCustomFunction are empty functions that are reserved for user custom demo features PCAS629 config h PCA9629 main c __ void Applotest void AppIO g_interrupt_flag int main void r f setup_App 4 void AppIO uint32 t flag while 1 Ey ii AppLOTest case 0x00000100 S6 switch DEMO MODE 1 e a MODE1_S6_ContinousMode break J case 0x00010000 87 switch DEMO MODE 1 v y 5 MODE1 87 InterruptMode void MODE S6 ContinousMode void lt i z a break i case 0x01000004 3 switch DEMO_MODE_2 A9629 0 MCNTL Ox Oe S if flaq i2c_write PCA9629 0 MCNTL 0x90 g direction l es e C i2c abstraction aaa 013604 Fig 7 _PCA9629A_main c And some functions defined in this module can be used as general commands These functions take PCA9629A slave address to define the target void StopMotor uint8_t i2c_dev void PCA9629_HW_reset void void PCA9629_all_register_init uint8_t i2c_dev void WaitForStop uint8_t i2c_dev 6 4 io _interface c io_interface h The io_interface c is made to manage button push switch related events This module has interrupt handlers and f
7. The sensor interface allows connection to slotted optical switches and bias components mounted on the Stepper motor board being connected to the PCA9629A The sensors are utilized in Interrupt mode to demonstrate the interrupt autoclear capabilities of the PCA9629A The interrupt autoclear capability allows one sensor to clear the interrupt caused by the other sensor This action can result in stopping the motor reversing the motor or adding extra steps or rotations before stopping or reversing the motor Motor interface The motor interface provides power as well as the phased outputs from either the bipolar Darlington driver or the MOSFET drivers The PCA9629A coil driver outputs OUTO to OUTS are connected to the inputs of the bipolar or MOSFET driver via selectable jumper block JP 14 RS 232 programming interface An RS 232 interface is provided as a method of programming and updating firmware on the LPC1343 microcontroller Ref 3 The details and required utilities to update the firmware are discussed in the programming section Section 7 3 of this manual USB programming interface A Full Speed USB 2 0 interface is provided as a method of programming and updating firmware on the LPC1343 microcontroller using the Flash Magic programming tool The details and steps required to update the firmware is discussed in the programming section Section 7 1 of this manual LPC Link USB debug and programming interface The on board LPC
8. User manual Rev 1 17 June 2014 24 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 To verify that Flash Magic is connected pull down the ISP tab and select Read Device Signature If Flash Magic returns a signature similar to Figure 12 then communications are established Fie ISP Options Took Help Go AB vEs gt 9 FH O83 Step 1 Communications Device Signature 1 Manutacturer lO Ox Device ID 1 Ox Device O 2 Ox Device ID Ox Bootloader Ver Serial Number 235860509 1398082937 1253072533 4110417927 Gen block checksums Evecute On Line training classes for microcontrollers and embedded networking and Internetworking waw esacademy com faq classes aaa 013599 Fig 12 Flash Magic device signature To complete programming verify that the correct hexadecimal file is loaded and press Start Step 5 in the Flash Magic Window 8 Support Online technical support is available at www nxp com support UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 25 of 35 NXP Semiconductors UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 9 Appendix A PCA9629A config h PCA9629A Stepper Motor Controller Demo on LPCXpresso LPC1343
9. UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 Rev 1 17 June 2014 User manual Document information Info Content Keywords Fm I2C bus PCA9629A GPO LPCXpresso LPC1343 daughter card sensor stepper motor motor direction soeed and ramp control Abstract PCA9629A demo kit OM13285 is designed to let customers evaluate the PCAQ9629A in a realistic application The demo kit includes a stepper motor board with sensors and the stepper motor demo board with a number of pre defined functions The functions are executed by pressing push button switches on the demo board NXP Semiconductors UM10798 Revision history PCA9629A advanced stepper motor controller demo kit OM13285 Rev Date Description 1 0 20140617 User manual initial version Contact information For more information please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 2 of 35 NXP Semiconductors UM10798 1 Introduction PCA9629A advanced stepper motor controller demo kit OM13285 The PCA9629A Stepper Motor Controller Demo Board is designed to let customers evaluate the PCA9629A in a rea
10. www lpcware com Ipcxpresso download and registration is required The process to debug or program the new firmware to LPC 1343 is described below 1 Connect a Mini USB cable between the LPC Link board Mini USB J3 and a PC without the 12 V supply on PCA9629A demo board 2 Open the LPCXpresso IDE window as displayed in Figure 8 3 Click Import Example project PCA9629ADemo zip file from the Quickstart Panel 4 Click Build PCA9629ADemo Debug from the Quickstart Panel to create binary file PCA9629ADemo bin 5 Click Debug PCA9629ADemo Debug from the Quickstart Panel to download automatically to the target and be programmed into flash memory via USB interface 6 To start execution of the new programmed firmware file remove the USB cable and provide the 12 V power on PCA9629A demo board UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 21 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 i Develop PCA9629DemoV4 src 9629_main c LPCXpresso File Edt Source Refactor Navigate Search Run Project Window Help f gt 8 27 SIFT aeABGbaere E IOW S 4 amp ea oF Project Explorer J Peripherals a7 o amp Debug y we e n 3 amp _LPOipresso1 343_reacne a ox v E1 X Develop a Bak eS autoisp amp blinky
11. 13 3 Trademarks 0002 eee eeee 34 14 COMENS i nse oue ocx 5S Seeders ase eelace 35 Please be aware that important notices concerning this document and the product s described herein have been included in section Legal information NXP Semiconductors N V 2014 For more information please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com Date of release 17 June 2014 Document identifier UM10798 All rights reserved
12. debugger if necessary Two headers are also installed to mate the pin connections on the LPCXpresso board to the PCA9629A main board connectors The onboard LPC 1343 is then programmed with the firmware to support the demo application Code was developed for the application using the LPCXpresso IDE This is based on the popular Eclipse development platform and includes several LPC specific enhancements It is an industry standard GNU tool chain with an optimized C library that gives engineers all the tools necessary to develop high quality software solutions quickly and cost effectively The C programming environment includes professional level features There is syntax coloring source formatting function folding online and offline help and extensive project management automation If the user wants to customize the demo or write their own application code the code is free to download at the link above System block diagram A block diagram of the PCA9629A demo system is shown in Figure 2 STEPPER MOTOR Stepper Motor Board L aaa 013575 Fig 2 PCA9629A demo board system block diagram All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 6 of 35 NXP Semiconductors UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 3 4 I
13. functions except MODE_GPO have names in format of MODEn_Sn_DemoFeature The function name starts with MODE1_ or MODE2_ Those functions are called only when the demo mode is in mode 1 or mode 2 The second part of the name is the switch button on the demo board number So MODE1_S4_RotationsMode is a function which is called when the button 4 is pressed in mode 1 En_S1_SetPhaseMode void function called when S1 is pressed in mode 1 and 2 En_S 2_SwitchDirection void function called when S2 is pressed in mode 1 and 2 E1_S3_StepsMode void function called when 3 is pressed in mode E1_ 4 RotationsMode void function called when S4 is pressed in mode E1_S5_ReverseMode void function called when S5 is pressed in mode E1_S6_ContinousMode void function called when S6 is pressed in mode E1_S7_InterruptMode void function called when S7 is pressed in mode E2_S3_RampMode void function called when 3 is pressed in mode 2 E2_S4_RampMode void function called when S4 is pressed in mode 2 E2_ 5_UserCustomFunction void function called when S5 is pressed in mode 2 E2_S6_UserCustomFunction void function called when S6 is pressed in mode 2 E2_S7_UserCustomFunction void function called when S7 is pressed in mode 2 E_GPO void function called when the mode is 3 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved
14. on reset default state Demo_Mode_1 Xpresso LPC1343 Reset this control also resets the PCA9629A device S9 PCA9629A Reset To reset PCA9629A device This reset is only for PCA9629A device Set all registers to power on default values UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 14 of 35 NXP Semiconductors UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 Table 5 Demo_Mode_2 functions LED2 blinking twice per second Switch Label Demo function Notes LED indication 1 Mode same as Demo_Mode_1 2 Direction same as Demo_Mode_1 S3 Ramp control Ramp up and ramp down in 48 steps Direction is indicated by CW 1 rotation in 0 5 second with ramp LED1 multiplication value 9 S4 Ramp control Ramp up and ramp down in 480 steps Direction is indicated by CW 10 rotations in 5 seconds with ramp LED1 multiplication value 6 S5 Available for user defined function S6 Available for user defined function S7 Available for user defined function S8 Xpresso Reset same as Demo_Mode_1 S9 PCA9629A Reset same as Demo_Mode_1 1 Press either S8 Xpresso Reset or S1 and S2 at the same time to return Demo_Mode_1 function Table 6 Demo_Mode_3 functio
15. 0 PCA9629A advanced stepper motor controller demo kit OM13285 Push button switches Nine push button switches S1 to S9 are available for motor operation modes and chip reset control on the PCA9629A demo board These switches are detailed in Section 4 2 2 of this manual 12 Volt input This input is intended as the main power source for the board The center pin is the 12 volt connection and the shield is Ground This input provides power for the on board 5 V and 3 3 V regulators and 12 V for the motor 4 Hardware description 4 1 4 2 4 2 1 LPC1343 Cortex M3 based LPCXpresso daughter board The NXP LPC1343 is the heart of the board It handles all of the intelligent functions of the board and handles all peripheral interfaces The LPC 1343 version of the LPC Xpresso board described earlier is used to provide a form factor that could be adapted to other processors with the same LPCXpresso form factor For the PCA9629A Demo Board application the primary function of the LPC13483 microcontroller is to detect when a switch has been pressed and execute the command associated with that switch In this application most of the commands consist of sending one or more 12C messages to the PCA9629A stepper motor controller The PCA9629A then handles the bulk of the stepper motor control functions The details of how the LPC 1343 handles these tasks are discussed in the firmware portion of the user manual Ref 2 PCA9629A st
16. 2014 All rights reserved User manual Rev 1 17 June 2014 34 of 35 NXP Semiconductors UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 14 Contents 1 1 1 2 2 1 3 3 1 3 2 3 3 3 4 3 4 1 3 4 2 3 4 3 3 4 4 3 4 5 3 4 6 3 4 7 3 4 8 3 4 9 3 4 10 4 4 1 4 2 4 2 1 4 2 2 4 2 3 4 2 3 1 4 2 3 2 4 2 3 3 4 2 4 4 3 5 5 1 6 1 6 2 6 3 6 4 6 5 6 6 6 7 Introduction 0 0c e eee eee eee Application overview 55 PCA9629A stepper motor controller emo Kit esse eck ee eck ee ee eee ie eee PCA9629A demo kit Rev 2 2 contents System overview 002 cece eee eee The PCA9629A stepper motor controller LPCXpressso microcontroller board System block diagram I O switches and indicators on the PCA9629A demo board Sensor interface 200000000 Motor interface 0 0 000005 RS 232 programming interface USB programming interface LPC Link USB debug and programming Merate csc ee eee hi aei AE EE rE SWD debug interface WINI2C USB interface Output LED indicators Push button switches 4 12 Volt input 00 00 0002 eee Hardware description 0 e0eeeee LPC1343 Cortex M3 based LPCXpresso daughter board 2200 0005 PCA9629A stepper motor controller mother board
17. Link debugger provides a high speed USB to JTAG SWD interface to the LPCXpresso IDE which is a highly integrated software development environment It can be connected to other debug targets such as a customer prototype The details and steps required to update and debug the firmware is discussed in the programming section Section 7 2 of this manual SWD debug interface A Serial Wire Debug SWD interface is provided as a method for debugging and programming the LPC1343 microcontroller Details on SWD and other LPC 1343 information can be found in UM10375 LPC 1311 13 42 43 User manual Ref 2 WINI2C USB interface WINI2C USB is an I2C tool that provides a USB interface and Graphical User Interface GUI to read and write to 1 C bus devices It contains pre defined GUIs for many NXP I2C bus devices as well as the ability to have user defined interfaces There is a dedicated GUI planned for the PCA9629A However until that is available the user defined functions of the WINI2C USB utility can be customized to use with the PCA9629A Output LED indicators Several LED indicators are available for status indication on the PCA9629A demo board These indicators are detailed in Section 4 2 1 of this manual All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 8 of 35 NXP Semiconductors UM10798 3 4 9 3 4 1
18. O switches and indicators on the PCA9629A demo board The interface connections switches and indicators on the PCA9629A demo board are shown in Figure 3 LPC Link USB interface USB interface ISP 12 V Center RS 232 interface Winl2C USB SWD interface LPC1343 3 aye 0M13285 s haa PCAS629A STEPPER MOTOR Motor E Motor Controller board ioe Mode 1 ieee ws Rev 2 2 interface S1 i j ast te Direction s mals og roller a E S2 sle SHA a ESE j rry Rotate fixed steps a ies IPE S3 Rotate fixed rotations n b rivet S4 Rotate and reverse S5 1 t 2 9 9 Os EXTERNAL ATR ORIVE Sensor Continuous rotation terian Sensors 12C Address Selection o A Ane Ani E 3 sonn paap KEES ZESTETI S r P SENSEs 9 Interrupt mode th sal 4 s S TERT a ig Py FEMT RUINTS 9 12C address selection PCA9629A 1 gt step 2 phase Single phase LED1 CW P2 state LEDS reset S9 LED4 LED3 LED2 P3 state LED6 aaa 013601 Fig 3 _PCA9629A demo board interfaces switches and indicators UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 7 of 35 NXP Semiconductors U M1 0798 UM10798 3 4 1 3 4 2 3 4 3 3 4 4 3 4 5 3 4 6 3 4 7 3 4 8 PCA9629A advanced stepper motor controller demo kit OM13285 Sensor interface
19. PC1343 microcontroller the firmware may be updated via USB To update via Mini USB X1 a PCA9629ADemo bin binary file must be provided or generated The process to update or program the new firmware to LPC1343 is described as follows 1 Insert a jumper into JP_ISP pin 1 2 prior to power up of the demo board 2 Connect a Mini USB cable between the PCA9629A demo board Mini USB X1 and a PC 3 Apply 12 V power to the PCA9629A demo board this puts the demo board in the USB boot mode 4 Double click My Computer to bring up this window The following should be displayed It may take a short time for the PC to read the USB info from the target My Computer Ede View Favortes Tools Help Ox O F Sad Hts m Asima i My Compater Hard Disk Drives Py CRP DISABLD is displayed if the code read protection is not set on the LPC1343 ZB CRPDISABRLD OVD RAM D Drive C Network Drives ae aaa 013592 5 Double click CRP DISABLD to open device window as displayed below then delete the current firmware bin binary file CRP DISABLD D Fie Edt View Favoriies Toots Help Oma O FF HK Dach amp Fods Te Address gt D Fir ant Tokers Teves lee E Poe te Gee delete this current binary file aaa 013593 UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 20 of 35
20. R TREF i JP_ISP adr nosh U NO 0M13285 JP JP_RS232 PCAS629A STEPPER MOTOR Motor Controller board Rev 2 2 very eraay JP12 JP15 a R Ria ia ge JP14 EXTERNAL MTR merle Select PCAS629 JPS TE x pi sense2 d x is tit re JP14a Hee sb FFB a0 x Py rey Mt PUIN JP11 JP10 JP9 JP2 JP4 aag Fig 4 PCA9629A demo board jumper locations UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 11 of 35 NXP Semiconductors UM10798 UM10798 4 3 PCA9629A advanced stepper motor controller demo kit OM13285 Table 3 On board jumper functions Jumper Function label Notes header JP1 Pin isolation jumpers Populated PCA9629A pins 9 15 JP2 Pin isolation jumpers Populated PCA9629A pins 1 7 JP3 External 12C No connect external I2C bus to PCA9629A 14 pin header JP4 I2C address selection Default is 7 8 and 9 10 populated slave address 0x42 is selected JP5 External motor driver No connect Option for external motor driver or controller JP6 External 2C power NP Not Populated Option for external I2C 5 V power JP7 PCA9629A 5 V power Populated PCA9629A 5 V power from internal JP8 Winl2C USB NP Not Populated I2C pull up source for Winl2C USB interface JP9 Test points 10 pin 10 pin header connect to GND OUT 0 3 and P 0 3 _ A JP10 Sens
21. ages including without limitation damages for loss of business business interruption loss of use loss of data or information and the like arising out the use of or inability to use the product whether or not based on tort including negligence strict liability breach of contract breach of warranty or any other theory even if advised of the possibility of such damages Notwithstanding any damages that customer might incur for any reason whatsoever including without limitation all damages referenced above and all direct or general damages the entire liability of NXP Semiconductors its affiliates and their suppliers and customer s exclusive remedy for all of the foregoing shall be limited to actual damages incurred by customer based on reasonable reliance up to the greater of the amount actually paid by customer for the product or five dollars US 5 00 The foregoing limitations exclusions and disclaimers shall apply to the maximum extent permitted by applicable law even if any remedy fails of its essential purpose Translations A non English translated version of a document is for reference only The English version shall prevail in case of any discrepancy between the translated and English versions 13 3 Trademarks Notice All referenced brands product names service names and trademarks are the property of their respective owners 2C bus logo is a trademark of NXP Semiconductors N V NXP Semiconductors N V
22. all PCA9629A I O including the ability to isolate any or all device pins e Test point access to monitor many onboard signals e Flexibility to use external controller with onboard drive e Requires 12 V input has onboard 5 V and 3 3 V regulators e Flexible reprogramming firmware updating via several methods USB X1 LPC Link USB J3 in LPCXpresso daughter board RS 232 X2 2 PCA9629A stepper motor controller demo kit UM10798 2 1 PCA9629A demo kit Rev 2 2 contents e PCA9629A demo board with LPC1343 LPCXpresso daughter board e 12 V DC power adapter e Stepper motor board with sensor e Motor cable 6 wire e Sensor cable 4 wire e Demo board quick start instructions All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 4 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 3 System overview 3 1 The PCA9629A stepper motor controller Stepper motors can be driven and controlled in a number of different ways depending on the type of motor being driven and the application requirements for the motor The most basic form of drive is single phase drive or wave drive The other common drive modes include 2 phase o step and micro step The main advantage of the o step or micro step mode is to break the steps into smaller increments to m
23. bit step counter to count output steps e Selectable active hold last state power on power off or released states for motor shaft e Four balanced push pull type outputs capable of sinking 25 mA or sourcing 25 mA for glueless connection to external high current drivers needed to drive motor coils e Up to 1000 pF loads with 100 ns rise and fall times on outputs UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 5 of 35 NXP Semiconductors U M1 0798 3 2 3 3 UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 LPCXpressso microcontroller board The LPCXpresso target board jointly developed by NXP Code Red Technologies and Embedded Artists www embeddedartists com products lpcxpresso includes an integrated JTAG debugger LPC Link so there is no need for a separate JTAG debug probe The target and debugger can be easily cut apart allowing them to be used separately The target portion of the board can connect to expansion boards to provide a greater variety of interfaces and I O devices The LPC Link debugger provides a high speed USB to JTAG SWD interface to the IDE It can be connected to other debug targets such as a customer prototype For the PCA9629A demo board application the debugger portion LPC Link can be cut off but a connector is installed to allow connection to the
24. conductors UM10798 4 2 2 PCA9629A advanced stepper motor controller demo kit OM13285 On board switches Table 2 shows the different switches and their present operations power on default MODE Table 2 On board switches Switch Label Switch function Signal destination Notes S1 Mode Motor Drive Mode LPC1343 PIO1_0 Select 1 Phase 2 Phase or Half Step Select S2 Direction Motor Direction Select LPC1343 PIO1_1 Select CW clockwise or CCW counter clockwise direction S3 Rotate Fixed Steps Rotate Fixed Steps LPC1343 PIO1_2 Rotate a fixed number of steps then stop S4 Rotate Fixed Rotations Rotate Fixed Rotations LPC1343 PIO1_4 Rotate fixed rotations then stop 5 Rotate and Reverse LPC1343 PIO1_5 Continuously rotate fixed steps and then Reverse Press again to stop motor Rotate and Reverse 6 Continuous Rotation LPC1343 PIO1_8 Continuous rotation Press either S5 or S8 to stop motor Continuous Rotation S7 Interrupt Mode LPC1343 PIO3_0 Continuously rotate and reverse motor on interrupt caused by PO or P1 Press again to stop motor Continuous Rotation and reverse driven by interrupt S8 Xpresso Reset LPC1343 Reset Xpresso LPC1343 reset This control also resets the PCA9629A Xpresso Reset S9 PCA9629A Reset PCA9629A Reset PCA9629A Reset PCA9629A set all registers to power on default values
25. controller demo kit OM13285 mn sn 14 anc JP 1S Anpors should be sat te sama Mea Drees inpas soins Asmpers showd be nthe same postion as Driver Duaa Saien Jumpers NXP Semiconductors TITLE PCASS62950emo_Ver 2_2_ver _4Eagle Document Numbers PEU Date 6 4 2013 2 10 46 PH aaa 013609 Fig 14 PCA9629A demo board version 2 2 2 of 4 UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 29 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 NXP Semiconductors TITLE PCAS 2SDemo_Ver 2_2_ver _4Eagle Document Number Correction to labeling Text sizes Date 6 4 2013 2 10 46 PH aaa 013610 Fig 15 PCA9629A demo board version 2 2 3 of 4 UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 30 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 1 OtuF NXP Semiconductors TITLE PCAS625Demo_Ver 2_2_vere_4Eagle Document Number PEU Correction to labeling Text sizes 22 Date 6 4 2013 2 10 46 _ PH aaa 013611 Fig 16 PCA9629A demo board version 2 2 4 of 4 UM10798 All information provided in this doc
26. counter clockwise S3 Rotate Fixed Steps Rotate Fixed 12 steps Rotation Rotate a fixed number of steps Default is 12 Steps one rotation is 48 steps Direction rotated is indicated by CW LED1 S4 Rotate Fixed Rotations Rotate Fixed Rotations Rotate a fixed number of rotations Default is 10 rotations 480 steps Press again to change the motor speed between 50 pps and 200 pps Direction is indicated by CW LED1 5 Rotate and Reverse Rotate between CW and CCW with delay interval in continuous loop Continuously rotate 36 steps CW and CCW with delay interval of 128 ms after CW and 512 ms after CCW Press again to stop motor operation Direction is indicated by CW LED1 Time delay between changing directions is set by LOOPDLY_CW CCW registers 6 Continuous Rotation Continuous Rotation Continuously rotate and press again to change the motor speed between 50 pps and 200 pps with ramp control Press either S5 or S8 to stop motor operation Direction is indicated by CW LED1 S7 Interrupt Mode Start Stop Interrupt Mode Interrupt Mode Continuous rotation and reverse motor on interrupt caused by PO or P1 falling edge Press again to stop motor operation Direction is indicated by CW LED1 Time delay between changing directions is set by LOOPDLY_CW CCW registers S8 Xpresso Reset To reset LPCXpresso LPC1343 This reset function brings this demo board to power
27. ed with their applications and products NXP Semiconductors does not accept any liability related to any default damage costs or problem which is based on any weakness or default in the customer s applications or products or the application or use by customer s third party customer s Customer is responsible for doing all necessary testing for the customer s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer s third party customer s NXP does not accept any liability in this respect Export control This document as well as the item s described herein may be subject to export control regulations Export might require a prior authorization from competent authorities Evaluation products This product is provided on an as is and with all faults basis for evaluation purposes only NXP Semiconductors its affiliates and their suppliers expressly disclaim all warranties whether express implied or statutory including but not limited to the implied warranties of non infringement merchantability and fitness for a particular purpose The entire risk as to the quality or arising out of the use or performance of this product remains with customer In no event shall NXP Semiconductors its affiliates or their suppliers be liable to customer for any special indirect consequential punitive or incidental dam
28. ee CWSCOUNTH PRS CCWSCOUNTL PRS CCWSCOUNTH PRS CWPWL lt CWPWH lt CCWPWL lt CCWPWH lt MCNTL lt SUBADR1 lt SUBADR2 lt SUBADR3 lt ALLCALLADR lt STEPCOUNTO lt STEPCOUNTI lt STEPCOUNT2 lt STEPCOUNT3 lt PCA9629ARegisters tern void tern void tern void tern void tern void tern void tern void tern void tern void tern void tern void tern void tern void MODE _GPO void tern void tern void tern void 10798 InitRegisters void All information provided in this document is subject to legal disclaimers gister register dress 1 dress 2 dress 3 STEPCOUNTO STEPCOUNT1 STEPCOUNT2 STEPCOUNT3 NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 27 of 35 NXP Semiconductors UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 10 Appendix B Schematics MAI4 2 Bao INT f Apart emel y h i Pe al ormow wm om US8_V8US X RST N Power Supply 0809 and Fig 13 PCA9629A demo board version 2 2 1 of 4 aaa 013608 UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 28 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor
29. epper motor controller mother board The PCA9629A mother board consists of dual 27 pin socket for the LPCXpresso daughter board the PCA9629A stepper motor controller motor drivers and connections to a Stepper Motor Board In addition it provides a number of switches and visual LED indicators to control and monitor the operation of the stepper motor The flexibility and utility of the board is enhanced by having numerous option jumpers test points and external connection capabilities On board visual LED indicators Table 1 shows the different LEDs and their functions Table 1 LED indicators LED label LED function Control drive source Notes LED2 Processor heartbeat LPC1343 PIO0O_7 Blinks per second when it is in normal default on LPCXpresso board MODE 1 operation LED1 LPC1343 PIO2_0 CW clockwise when LED1 is ON CCW counter clockwise when LED1 is OFF Motor starting direction LED2 Single phase LPC1343 PIO2_1 Indicates Single Phase mode LED3 Two phase LPC1343 PIO2_2 Indicates Two Phase mode LED4 Half step LPC1343 PIO2_3 Indicates Half Step mode LED5 P2 PCA9629A P2 LED5 is ON when P2 drives LOW LED6 P3 PCA9629A P3 LED6 is ON when P3 drives LOW UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 9 of 35 NXP Semi
30. er address of read start and last is size of the reading The read data is stored in global array in 1 C driver routines The function returns pointer to this array The data inside of the array should be retrieved before next read both single byte read and multiple byte read because it will be overwritten The writing can be done by i2c_write_array It requires 4 arguments of I2C slave address register address pointer to single byte array and array size uint8_t i2c_read_array uint8_t i2c_dev uint8_t regadd uint8_t size void i2c_write_array uint8_t i2c_dev uint8_t regadd const uint8_t regdata uint8_t size Usage examples of those functions can be found in PCA9629A_main c module 12C c and I2C h modules The 2C c is a driver of the MCU I C peripheral This module is a layer under i2c_abstraction c It may not be required to touch inside of this module GPIO c GPIO h systick c systick h timer16b_0 c and timer16b_0 h These modules are drivers for the MCU peripherals They manage GPIO ports and timings All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 19 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 7 Programming the demo board 7 1 Programming the PCA9629A demo board via USB If the code read protection CRP is not set on the L
31. imer for CW to CCW control register Loop delay timer for CCW to CW control register umber of clockwise steps register low byte umber of clockwise steps register high byte umber of counter clockwise steps register low byte umber of counter clockwise steps register high byte Clockwise step pulse width register low byte Clockwise step pulse width register high byte Counter clockwise step pulse width register low byte Counter clockwise step pulse width register high byte Motor control I2C bus subad I2C bus subad I2C bus subad All Call 12C bus address registers registers registers registers Step counter Step counter Step counter Step counter ODEn_S1_SetPhaseMode void ODEn_S2_SwitchDirection void ODE1_S3_StepsMode void ODE1_S4_RotationsMode void ODE1_S5_ReverseMode void ODE1_S6_ContinousMode void ODE1_S7_InterruptMode void ODE2_S3_RampMode void ODE2_S4_RampMode void ODE2_S5_UserCustomFunction void ODE2_S6_UserCustomFunction void ODE2_S7_UserCustomFunction void WaitForStop uint8_t i2c_dev StopMotor uint8_t i2c_dev MODE lt WDTOI lt WDCNTL lt IO_CFG lt INTMODE lt MSK lt INTSTAT lt IP lt INT_MTR_ACT lt EXTRASTEPSO rs EXTRASTEPS1 RES OP_CFG_PHS lt OP_STAT_TO lt RUCNTL lt RDCNTL lt PMA lt LOOPDLY_CW lt LOOPDLY_CCW lt CWSCOUNTL P
32. ing one of the switches on the demo board as summarized in Table 4 Table 5 and Table 6 When S1 and S2 buttons are pressed at the same time to switch demo function from Demo_Mode_1 to Demo_Mode_2 a red LED2 on the LPCXpresso LPC1343 daughter card blinks twice per second for Demo_Mode_2 The Demo_Mode_2 is for the ramp up ramp down control as well as user customized operations When S1 and S7 buttons are pressed at the same time to switch demo function from Demo_Mode_1 to Demo_Mode_3 a red LED2 on the LPCXpresso LPC1343 daughter card blinks faster for Demo_Mode_3 The Demo_Mode_3 sets output logic levels on OUT 3 0 pins for GPO function All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 13 of 35 NXP Semiconductors UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 Table 4 Demo_Mode_1 functions power on default mode LED2 blinking once per second Switch Label Demo function Notes LED indication S1 Mode Motor Phase Mode Default is Single phase mode Selected Mode is indicated by the Select Press to cycle through 2 Phase __ corresponding and 1 2 Step Modes LED2 ON Single phase LED3 ON 2 phase LED4 ON phase S2 Direction Motor Direction Select Default is CW Press again to LED1 ON CW clockwise switch between CW and CCW LED1 OFF CCW
33. inimize resonance effects that could be a problem in certain applications Stepper motor can also be designed for unipolar and or bipolar drive The PCA9629A is designed for single phase 2 phase and step operation This application only deals with interface to a unipolar motor The PCA9629A has an internal oscillator so no external components are required Some of the other features of the PCA9629A include e Stand alone operation generates motor coil drive phase sequence signals for use with an external high current driver to off load master controller micro e Programmable step rate 333 3 kpps to 0 3 pps with 3 accuracy e Programmable number of steps and motor action either multiple times 1 to 255 or continuously e Sensor enabled drive control linked to interrupt from PO and P1 inputs with noise filter enable or disable feature e Programmable four GPIO ports and four GPO ports e Programmable ramp up from start and ramp down to stop e Programmable re enable ramp up or ramp down to change ramp rate curve on the fly e Programmable start ramp up ramp down stop or reverse the direction either clockwise or counter clockwise of rotation control of stepper motor e Programmable restart motor with new speed and operation while motor is still running e Programmable loop delay timer for motor reversal mode e Interrupt auto clear function linked extra steps direction reversal and stop control without microcontroller handling e 32
34. ized or warranted to be suitable for use in life support life critical or safety critical systems or equipment nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury death or severe property or environmental damage NXP Semiconductors and its suppliers accept no liability for inclusion and or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and or use is at the customer s own risk Applications Applications that are described herein for any of these products are for illustrative purposes only NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products and NXP Semiconductors accepts no liability for any assistance with applications or customer product UM10798 All information provided in this document is subject to legal disclaimers design It is customer s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer s applications and products planned as well as for the planned application and use of customer s third party customer s Customers should provide appropriate design and operating safeguards to minimize the risks associat
35. lag checking routine which is called from main loop The interrupt handler gets the event of the buttons and sets flag The flag checking routine calls functions in PCA9629A_main c to execute demo features UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 18 of 35 NXP Semiconductors U M1 0798 6 5 6 6 6 7 UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 i2c_abstraction c and i2c_abstraction h 12C read and write routines are available in this module This module abstracts the implementation of the 1 C master interface in MCU LPC1343 and simplifies the access of the PCA9629A internal registers There are 4 functions for 12C transfers The first 2 functions are read and write for single byte data The single byte read function i2c_read takes 2 arguments of 12C slave address and register address Single byte read data is given as a return value The single byte write function i2c_write takes 3 arguments of I C slave address register address and 1 byte data for the register uint8_t i2c_read uint8_t i2c_dev uint8_t regadd void i2c_write uint8_t i2c_dev uint8_t regadd uint8_t regdata The other 2 functions are for read and write multiple bytes The multiple read function i2c_read_array takes 3 arguments First one is slave address second is regist
36. listic application The demo board kit includes a Stepper Motor board with sensors and the Stepper Motor Demo Board with a number of pre defined functions The parameters used by these functions can be easily changed by changing a configuration header file To customize the application further the generalized driver functions used in the demo firmware can be easily modified with a free compiler tool LPCXpresso available at www lpcware com lpcxpresso bi oooood PCA9629A STEPPER MOTOR Motor Controls board D s4 P7 WS h oa c3 g ipt Jumpers 14 0 djo off 00000 0F oo000 0 O 0O O 0O O O 0 0 27 ene O O OF2 8 O O O O Q 0 29 C dtroller 1 0s Po 5 osseudxod woo dxu MMm Leos Raps oy Oo cu ig Rippa 4 Q Fig 1 OM13285 PCA9629A stepper motor controller demo board Rev 2 2 0M13285 JPi4 and JP15 jumpers should be the sane EXTERNAL MTR DRIVE Select PCAS629 pie K i J r 2 t 12C Address Selection 6ND1 a Y Ade ADi P1 SENSE2 P SENSE1 3 a NPN PF3ST Sensors aaa 01360C UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 3 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 1 1 Application overview The PCA9629A Demo board is designed for easy setup and ease of opera
37. nd start up modules The Cortex Microcontroller Software Interface Standard CMSIS requires several standard header files and system files to be included in the build to comply with the standard The CMSIS V1 3 files are provided by ARM for the LPC1343 and are included with this project package In addition to the CMSIS V1 3 files a start up file is provided from the compiler vendor Code Red The start up file is cr_startup_lpc13 c The start up file defines the locations of the exception interrupt handlers and sets up the default exception handlers 6 2 PCA9629A_ config h All definitions of PCA9629A related are defined in this file This header file is quite simple that defines PCA9629A slave addressed register addresses a few parameters of register bit fields IC buffer size because this value is related to the number of the registers and some common global function prototypes A listing of the PCA9629A_config h is given in Section 9 Appendix A PCA9629A_config h 6 3 PCA9629A_main c module The main module has all the initialization routines for the other modules as well as containing the loop that test the application flags For this application flags indicating an external interrupt occurred and which pin caused the interrupt are tested in main loop and acted on if it was determined that a switch was pressed generating the external interrupt Next 13 functions are predefined functions that are called from io_interface c All those
38. ns LED2 blinking faster Switch Label Demo function Notes LED indication S1 Set OUTO pin as Motor output OUTO pin 12 goes High n a General Purpose Output GPO while the button is pressed S2 Set OUT1 pin as Motor output OUT1 pin 11 goes High n a General Purpose Output GPO while the button is pressed 3 Set OUT2 pin as Motor output OUT2 pin 10 goes High n a General Purpose Output GPO while the button is pressed S4 Set OUT3 pin as Motor output OUT3 pin 9 goes High n a General Purpose Output GPO while the button is pressed S5 not available S6 not available S7 not available S8 Xpresso Reset same as Demo_Mode_1 S9 PCA9629A Reset same as Demo_Mode_1 1 Press either S8 Xpresso Reset or S1 and S7 at the same time to return Demo_Mode_1 function UM10798 Starting the interrupt mode of the demo causes the motor to first start then stop and reverse when the sensor detects the interrupter in the slot When the interrupter passes through the other sensor the motor again stops and reverses This process continues until the Interrupt Mode switch S7 is pressed again in Demo_Mode_1 In Y gt Step mode in this demo the number of steps moved is counted in 1 steps As a result the 12 steps 7 5 degrees per step default setting for the Rotate Fixed Steps command results in the shaft rotating 450 instead of the 900 rotation that would be seen with the
39. ntain the function requires including the header file in the calling module for the module containing the function to be called Some of the modules are available from NXP in the LPC13xx code bundle and some of the modules were written specifically for this application The firmware is delivered in the format of executable binary and LPCXpresso project with source code The project contains all source code and library files that are required to rebuild the project The firmware project includes readme and history information in info directory as shown in Figure 6 Develop PCA9628ADemo info mbed_version_cudd File Edit Navieate Ssach Froect Run Window H rie BOR ly ae KY z w0 Proj RP Hh Regi O ede j le OMSISy IpSO_LPC Idx 1S PCASI29ADere 4 Binaries Ghai includes aes ib _intertace gt k interteceh POAS529A confieh FOAS629A_maine amo Debug launch 9ADamo Release bunch aaa 013603 Fig 6 Firmware C modules and info directory All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 16 of 35 NXP Semiconductors U M1 0798 vo vo vo vo vo vo vo vo vo vo vo vo vo UM10798 Qa aoaoaa o oqmunaaaQaaQaaaa PCA9629A advanced stepper motor controller demo kit OM13285 6 1 CMSIS V1 3 a
40. ode of the demo this causes the motor to stop and reverse when the sensor detects the interrupter entering the slot All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 12 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 5 Demo setup and operation UM10798 5 1 PCA9629A stepper motor controller demo setup Connect a 12 V power source to the PCA9629A Stepper Motor Controller demo board and connect Motor Sensor board cables as shown in Figure 5 aaa 013468 Fig5 PCA9629A demo kit If the board is powered up and operating in normal condition a red LED on the LPCXpresso daughter card blinks once per second In the present configuration the Single Phase and CW LEDs illuminate indicating the default states of motor drive mode and the direction on the PCA9629A demo board Pressing the Mode switch S1 once changes the mode to 1 2 step mode and illuminate the 1 2 Step LED Pressing the Mode switch S1 one more time changes the mode to 2 Phase mode and illuminates the 2 Phase LED The starting direction of the motor can be changed to CCW by pressing the Direction switch S2 indicated by the CW LED not being illuminated All of the PCA9629A Stepper Motor Controller demo functions are then initialized by press
41. or output select Default is 1 3 and 2 4 populated select sensor outputs to P 0 1 pins of PCA9629A JP11 Test points 5 pin 5 pin header connect to P 0 3 and GND JP12 Motor cable interface Connect to external stepper motor board 6 wire JP13 Sensor cable interface Connect to external motor sensors outputs for interrupt 4 wire mode JP14 Driver input select For Darlington drive jumper 1 5 2 6 3 7 4 8 default setting For FET driver jumper 5 9 6 10 7 11 8 12 JP15 Driver output select For Darlington drive jumper 1 5 2 6 3 7 4 8 default setting For FET driver jumper 5 9 6 10 7 11 8 12 JP_ISP ISP select NP Not Populated Jumper 1 2 to enter ISP mode on reset JP_RS232 Enable RS 232 ISP NP Not Populated Jumper 1 2 3 4 to enable the RS 232 port to control ISP operation Stepper motor board A Nippon Pulse Motor NPM PF35T 48 Series stepper motor is used for the initial demo The default parameters for the demo configuration were defined for the 48 steps per rotation 7 5 per step for this PF35T 48 Series motor A machined piece of aluminum is mounted on the motor shaft to act as an optical interrupter Slotted optical switches and bias circuits are also on the motor board to sense when the interrupter connected to the motor shaft passes through the slot of the optical switch The sensor outputs are connected to the P 0 1 inputs of PCA9629A generating interrupt based motor control In the interrupt m
42. port is the RS 232 port assignment for your PC usually COM1 Fill in the other entries as shown For Step 2 check the box as shown For Step 3 browse to the hexadecimal file provided for programming In addition to the above setup values pull down the Options tab and select Advanced Options The Communications and Hardware Config configurations should be set as shown in Figure 10 and Figure 11 UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 23 of 35 NXP Semiconductors U M1 0798 UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 Advanced Options Communications Hardware Config Security Just In Time Code Timeouts Misc High Speed Communications Maximum Baud Rate 230400 v _ Half duplex Communications Fig 10 Flash Magic communications setup Advanced Options 3 Communications Hardware Config Security Just In Time Code Timeouts Misc Use DTR and ATS to control AST and P0 14 C Keep ATS asserted while COM Port open T1 50 ms T2 ms J Assert DTA and RTS while COM Port open CC aaa 01359E Fig 11 Flash Magic hardware configuration setup All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved
43. s pulses per second SWD Serial Wire Debug USB Universal Serial Bus 12 References 1 PCA9629A Fm I2C bus advanced stepper motor controller Product data sheet NXP Semiconductors www nxp com documents data_sheet PCA9629A pdf 2 UM10375 LPC1311 13 42 43 User manual User manual NXP Semiconductors www nxp com documents user_manual UM10375 pdf B LPC1311 13 42 43 32 bit ARM Cortex M3 microcontroller up to 32 kB flash and 8 kB SRAM USB device Product data sheet NXP Semiconductors www nxp com documents data_sheet LPC1311_13 42 43 pdf UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 33 of 35 NXP Semiconductors UM10798 PCA9629A advanced stepper motor controller demo kit OM13285 13 Legal information 13 1 Definitions Draft The document is a draft version only The content is still under internal review and subject to formal approval which may result in modifications or additions NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information 13 2 Disclaimers Limited warranty and liability Information in this document is believed to be accurate and reliable Howe
44. same command in Single Phase or 2 Phase mode The number of rotations and speed of rotation is also halved in 2 Step mode when compared to the other modes with the same parameter settings All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 15 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 6 Firmware overview UM10798 The firmware for the PCA9629A demo board is contained in a number of C modules The modular design and conformance to the CMSIS software standard V1 3 facilitates porting the software to other ARM Cortex versions The firmware was written and compiled using the free LPCXpresso compiler tools referenced earlier in this document The modules are discussed individually in the following sections Section 6 1 through Section 6 7 The firmware for the PCA9629A demo uses a simple foreground background technique This technique means that most of the processor time is spent in a loop checking flags that are set in interrupt routines to indicate that processing is required when the flag is tested in the main loop Application tasks are separated into individual modules Most of these modules have header files that contain the external declarations for functions called by other modules To call a function in a module that does not co
45. saving of source code as well as setting breakpoints in debug mode E Console View displays status information on compiling and debugging as well as program output Fig 8 LPCXpresso IDE window UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 22 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 7 3 Programming the PCA9629A demo board via RS 232 An RS 232 interface is provided to program the device via ISP in system programming capability Opening the Flash Magic utility www flashmagictool com should show the following screen h2 Flash Magic NON PRODUCTION USE ONLY File ISP Options Tools Help H AB vE gt Y Step 1 Communications Select Derice LPE COM Port COM 1 Baud Rate 38400 Interface None SP F 2 block 5 Ox005000 0 005FF Z Erase all Flash Code Rd Prot Oscillator MHz jz Ejaze blocks used by Hex File Step 3 Hex File Step 4 Options C Verity after programming C Fill unused Flash Gen black checksums Evecule Technical on line articles about 8051 and 4 programming waw esacademy com fag docs aaa 013596 Fig 9 Flash Magic utility Insert jumpers into JP_RS232 pins 1 2 3 4 prior to powering up the demo board For Step 1 The COM
46. steps rotation lt step count for fixed steps rotation 12C Slave address 12C Slave address 12C Slave address 12C Slave address 12C Slave address 12C Slave address 12C Slave address 12C Slave address 12C Slave address 12C Slave address this is for i2c c and i2c_abstraction c this value should be register length 3 NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 26 of 35 NXP Semiconductors UM10798 ex ex ex ex ex ex ex ex ex ex ex ex ex ex ex ex UM A version registers 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D Ox0E Ox0F Ox Ox Ox Ox Ox Ox Ox Ox Ox Ox Ox Ox Ox Ox Ox Ox 0x20 0x21 0x22 A O aD POA DSH SF WHY FH OO wy PCA9629A advanced stepper motor controller demo kit OM13285 Mode register WatchDog Time Out Interval register WatchDog Control register I O Configuration register Interrupt Mode register Mask interrupt register Interrupt Status register Input Port re Interrupt motor action control register Extra steps count for INTPO control register Extra steps count for INTP1 control register Output Port Configuration and Phase control register Output state and time out control register Ramp up control register Ramp down control register Perform multiple of actions control register Loop delay t
47. tion The demo functions are executed by pressing a control button on the demo board The PCA9629A Demo functions supported by the demo board and firmware include Mode This selects Full Step Half Step or Two Phase drive Direction This selects clockwise or counter clockwise starting direction Rotate Fixed Steps This rotates the motor a fixed number of steps or ramp up and ramp down control function Rotate Fixed Rotations This rotates the motor for a fixed number of rotations or ramp up and down control function Rotate and Reverse Rotates the motor for a fixed number of rotations stops wait a delay time reverses and rotates the same fixed number of rotations in the other direction Continuous Rotation Continuously rotate the motor and the button is pressed again to change speed with ramp control Interrupt mode This starts the motor rotating in the Interrupt Auto clear mode where it starts one direction until the optical interrupter connected to the motor shaft passes through one of the slotted optical switches It then stops wait a delay timer and reverses until an interrupter passes through the second slotted optical switch This process continues until the button is pressed again to stop Some of the other features of the PCA9629A demo board are e Programmable C bus address selection up to 16 slave devices e Optional either MOSFET with Schottky diode or Darlington sink driver e Access to
48. ument is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 31 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 Physical locations YI won sensori OPDS65P22 Phusical locations ro Tort Document Number Label corrections updates Date 8 9 2013 9 12 06 AM Sheet 1 1 aaa 013612 Fig 17 PCA9629A motor version 2 2 UM10798 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 17 June 2014 32 of 35 NXP Semiconductors U M1 0798 PCA9629A advanced stepper motor controller demo kit OM13285 11 Abbreviations Table 7 Abbreviations Acronym Description CCW counter clockwise CMSIS Cortex Microcontroller Software Interface Standard CW clockwise FET Field Effect Transistor Fm Fast mode Plus GNU GNU is Not Unix GPIO General Purpose Input Output GPO General Purpose Output GUI Graphical User Interface I2C bus Inter Integrated Circuit bus 1 0 Input Output IDE Integrated Development Environment ISP In System Programming JTAG Joint Test Action Group LED Light Emitting Diode MCU Micro Controller Unit MOSFET Metal Oxide Semiconductor Field Effect Transistor PC Personal Computer pp
49. ver NXP Semiconductors does not give any representations or warranties expressed or implied as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information NXP Semiconductors takes no responsibility for the content in this document if provided by an information source outside of NXP Semiconductors In no event shall NXP Semiconductors be liable for any indirect incidental punitive special or consequential damages including without limitation lost profits lost savings business interruption costs related to the removal or replacement of any products or rework charges whether or not such damages are based on tort including negligence warranty breach of contract or any other legal theory Notwithstanding any damages that customer might incur for any reason whatsoever NXP Semiconductors aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors Right to make changes NXP Semiconductors reserves the right to make changes to information published in this document including without limitation specifications and product descriptions at any time and without notice This document supersedes and replaces all information supplied prior to the publication hereof Suitability for use NXP Semiconductors products are not designed author

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