CSM-12C32 User Guide
Contents
1. OFAE FFAE 26 C1WU OFBO FFBO 28 COTX OFB2 FFB2 2A CORX OFB4 FFB4 2C COERR OFB6 FFB6 2E COWU OFB8 FFB8 30 FEPRG OFBA FFBA 32 EEPRG OFBC FFBC 34 5 12 FFBE 36 SPI1 OFCO FFCO 38 12C OFC2 FFC2 3A BDLC OFC4 FFC4 CRGC OFC6 FFC6 CRGL 40 OFCA FFCA 42 MCNT OFCC FFCC 44 PTHI OFCE FFCE 46 PTJI OFDO FFDO 48 ADC1 OFD2 FFD2 4A ADCO OFD4 FFD4 4C SCI1 OFD6 FFD6 4E SCIO OFD8 FFD8 50 SPIO OFDA FFDA 52 PACAI OFDC FFDC 54 PACAO OFDE FFDE 56 TOF OFEO 58 TC7 OFE2 FFE2 5A TC6 OFE4 FFE4 5C TC5 OFE6 FFE6 5E TC4 OFE8 FFE8 60 TC3 OFEA FFEA 62 TC2 OFEC FFEC 64 1 OFEE FFEE 66 TCO OFFO FFFO 68 RTI OFF2 FFF2 6A IRQ OFF4 FFF4 6C XIRQ OFF6 FFF6 6E SWI OFF8 FFF8 70 TRAP OFFA FFFA 72 COP OFFC FFFC 74 CLM OFFE FFFE 76 RESERVED 13 2005 CSM12C32 J UNE 8 2005 Serial Monitor Operation A serial binary monitor is loaded in the MCU internal flash memory Press and hold SW1 while pressing the RESET button or applying power This section provides a brief description of this serial monitor operation Refer to application note AN2548 for complete details on the serial monitor operation This application note may be found on the Support CD received with the module or from the Freescale web site Serial Monitor Memory Map Table 6 Serial Monitor Memory Map 0 0000 Registers 1K bytes OxO3FF Reserved 0x3800 Internal RAM 2K byte2. CSM12C32 User Guide Rev C this document 9 12C32DGV1 pdf MC9S12C32 Device User Guide 9512632 ZIP zip Zip file containing Device Block User Guides Module_QuickStart pdf Educational Module Quick Start Guide AN2548 pdf Serial Monitor Program for HCS12 MCU s INTRODUCTION Before using this module the user should be familiar with the hardware and software operation of the target MCU Refer to the MC9S12C32 User Manual and MC9S12C32 Reference Man ual for details on MCU operation The module s purpose is to promote the features of the 9512 32 and to assist the user in quickly developing an application in a known working environment Users should be familiar with memory mapping memory types and embedded software design for quick successful application development The CSM12C32 Educational Module is a fully assembled fully functional module supporting Freescale MC9S12C32 microcontroller The module comes with a serial cable power supply and an embedded monitor for stand alone operation Support software for this module is pro vided for Windows 95 98 NT 2000 XP operating systems Application development may be performed by using the embedded monitor or any compati ble BDM cable with supporting host software The embedded monitor provides an effective low cost debug method Note that when a BDM cable is used for debugging the BDM pod should be powered from an external supply GETTING STARTED Please refer to the Educational
3. Module Quick Start Guide to quickly setup the hardware and install the AxIDE terminal interface CSM12C32 JUNE 8 2005 OPERATION The CSM12C32 module provides input and output features designed to assist embedded ap plication development Access to MCU port signals is available through module the connector J1 This connector may also be used to input power to the module or to output power to at tached modules RS 232 communications signals may also be input through connector J1 Care must be exercised when using the J1 to power the module as only regulated voltage in the range of 3 3V to 5V should be supplied to this connection The on board regulator pro vides a fixed 5V voltage to the module Five option jumpers and 3 cut traces control module operation Enabling a jumper option re quires installing a shunt across the associated header pins Removing the shunt disables the associated option An option enabled by a cut trace can be disabled by removing the circuit trace between the cut trace component pads Use a sharp knife to cut the embedded circuit trace Be careful not to damage adjacent circuitry To re enable the option simply install a 1206 sized 0 ohm resistor or piece of wire across the cut trace component pads Power Power is supplied to the module through a 2 0mm barrel connector at location PWR for stand alone operation The module may also be powered through connector J1 when connected to the MCU Project Board Power ma
4. 1 15 16 PAO LED1 User3 PM4 MOSI 17 18 PADOO ANOO PB4 LED2 User4 PM2 MISO 19 20 PADO1 ANO1 PM5 SCK 21 22 PB4 Note Default signal assignment should be PM3 SS PE4 ELCK PE7 XCLKS PAO PM1 TXCAN disabled to use the signal at connector J1 PADO2 ANO2 29 30 PADOS ANO3 31 32 PADO4 ANOA 33 34 PADOS ANO5 35 36 PADO6 ANO6 37 38 PADO7 ANO7 39 40 PT2 PW2 IOC2 PT4 PW04 lOC4 PT5 IOC5 PT6 IOC6 PT7 OC7 User Options User options include 2 LED s and 2 pushbutton switches Each user option may be enabled individually using the USER option header When the appropriate USER option jumper is in stalled the associated user option is enabled Removing a jumper disables the associated user option Table 2 User Option Jumper Settings Jumper On Off MCU Signal User 1 Enable SW1 Disable SW1 PEO XIRQ User 2 Enable SW2 Disable SW2 PP5 KWP5 User 3 Enable LED1 Disable LED1 PAO User 4 Enable LED2 Disable LED2 PB4 Switches Two push button switches provide momentary active low input to the MCU for user applica tions Pressing a switch provides a momentary low logic level input tot the MCU SW1 and SW2 provide input to MCUI O ports PEO and PP5 respectively LED s Two LED s provide active low visual output for user applications A low voltage level driven out the app
5. 232 XCVR 3 3V ESD 16SOIC f k oje JUNE 8 2005 Ref m Mfr Mfr P N EN EET C3 C13 C16 C19 C20 Avx TAJB106K010R C fe 6 C10 C1 C4 C7 C8 C9 C5 C11 C12 C15 C17 C18 C21 C22 MOD see sample CX1 Kemet C0805C472K5RACTU C14 Kemet C0805C471J5GAC7025 R2 R3 R10 R1 R4 R11 R6 R7 R9 D1 D3 General Sem LV1 Dallas DS1813R NL 5 0V EconoReset w PB 10 SOT 23 18 1 STMicroe L4931CD50 lectronics VReg LDO 5 0V 250mA 8 SOIC 19 Ind 10uH 1210 SMT 20 3 Sw PB 5mm Sq Thru 21 Conn 2 1mm Pwr Jack Barrel Thru RA L1 Vishay IMC1210SY100K RESET SW1 SW2 22 t Conn Dsub RA PCB Mount 17 CSM12C32 Hdw Shunt 2 Pos 1 1 PCB CSM12C32 Module 1 6 x2 2 2 Layer 2 Sided 18
6. DOC 0328 010 REV D CSM12C32 Educational Module for Freescale MC9S12C32 Axiom Manufacturing 2813 Industrial Lane Garland TX 75041 Email Sales axman com Web http www axman com CSM12C32 JUNE 8 2005 CONTENTS CAUTIONARY NOTES Yu n CX VR GE ua UN E Ku iaa 4 PEA TURES sis 5 REFERENCES e 6 INTRODUCTION opem 6 GETTING STARTED 6 OP ERA gene 7 rA AM AL M ARA Mr 7 FVM dz ONES EOS 7 qe ISTIS LI 7 SEL JUMPER o P EE 8 RESET Hor uncos ul lh de uo a M at Dud a cM Dus Sc t 8 LOW VOLTAGE aiie EQ EE RR 8 TIMING Rc Rr ESOS 8 qe nier TON DP vH 9 M 9 TNT TORRE 9 EO ONS crenata 10 SWITCHE S AN uM MM M A MM ME 10 LED 10 DEVELOPMENT SUPPOR F 11 ASCII MONITOR ORE RA DION rs 11 MONITOR COMMANDS 3 cs tary cd dt tuc a 11 MONITOR MEMORY MAP 11 INTERRUPT SURPOR a eax iain aan a 12 INTERRUPT VECTOR TABLE 1 iit tr ia aei bed
7. ader BDM access is gained through the BDM PORT header This is a 6 pin header that allows connection of a compatible HCS12 BDM cable Refer to the documentation for the specific 14 CSM12C32 BDM cable used for details on its use header Figure 4 BDM PORT MODC BKGD 1 2 GND 3 4 RESET 5 6 VDD JUNE 8 2005 The figure below shows the pin out for the DEBUG See the HC12 Reference Manual for complete DEBUG documentation 15 CSM12C32 JUNE 8 2005 MECHANICAL DETAILS 0 150 2 PLACES 1 200 CONNECTOR 40 POSITION 0 1 SPACING 2 200 eC 7e 0 375 86 PCB THICKNESS 0 062 DOC 0328 010 REV C APPENDIX A Bill of Materials CSM12C32 AXM 0332 4 Tant 10uF 10V SMB 2 Mon 01uF 50V 0805 5 Cap Mon 1uF 16V 0805 Cap Mon 1uF 50V 0805 Cap Mon 4700pF 10 0805 ad P Mon 470pF 50V 5 0805 Res Carbon 1M ohm 5 1 16w 0805 3 Res Carbon 10K ohm 5 0805 Res Carbon 5 1k ohm 5 0805 3 Res Carbon 4 7K ohm 5 0805 Res Carbon 1K ohm 1 16W 5 0805 Cer 16 00MHz w Caps SMT 2 Diode Schottky 30V 200mA BAT54C Com Cath ode SOT23 3 LED Green w reflector 1206 SMT IC MCU MC9S12C32 25MHz 48QFP 16 1 Dual RS
8. connector J1 The module may also source power to auxiliary modules connected to the connector J1 Damage may occur if the J1 power input pins are over driven Refer to the Table 3 below to determine correct PWR SEL jumper setting Figure 1 PWR SEL 110 Source power input from barrel connector PWR 2 mm 1 m Source power input from connector J1 200 1 EROS Source power from barrel connector PWR and supply power to external cir 2 connected to J1 Reset Switch The RESET switch provides an asynchronous reset input to the MCU Pressing the RESET switch produces a low voltage level on the RESET input to the MCU The low voltage supervi sor LV1 holds the RESET line low for approximately 150 ms after the pushbutton is released Low Voltage Detect 051813 LV1 provides POR low voltage detect and pushbutton reset services for the module At power on LV1 holds the MCU in reset for 150 ms after Vcc reaches approximately 4 35V During normal operation LV1 asserts RESET when Vcc falls below 4 35V and holds RESET true for 150 ms after VCC returns to normal The push button operation is described in the paragraph above Use of connector J1 to supply 3 3V to the module requires disabling LV1 LV1 may be disabled by opening the cut trace CT1 Simply remove the circuit trace between the cut trace pads to open the circuit To restore the circuit functionality install a 1206 size 0 ohm resis
9. dule Analog Comparator 8 MHz Internal Bus Operation Default 25 MHz Bus Operation using internal PLL 3 3VDC to 5VDC operation 40 pin connector provides access to most MCU I O signals Power Input Selection Jumper On board regulated 5V power supply Optional power input from Connector J1 Optional power output through Connector J1 16 MHz Ceramic Resonator RS 232 Serial Port w 9 Connector 8 Ch 10 bit Analog Comparator with full rail to rail operation and external trigger capability 8 Channel 16 bit Timer with Input Capture Output Compare and PWM capabilities User Components Provided Push Button Switches 2 User RESET Indicators 2 User VDD Jumpers Disable User Functions Power Select Connectors 40 MCU I O Connector 2 0mm Barrel Connector Power Input DEBUG BDM Connector DB9 Communications Connector Supplied with DB9 Serial Cable Documentation CD Manual and Wall plug type power supply 1912 5 12 32 Specifications Module Size 2 2 x 1 6 Power Input 9VDC 9 200 mA typical 6 to 16VDC range CSM12C32 JUNE 8 2005 REFERENCES Reference documents are provided on the support CD in Acrobat Reader format More infor mation can be found in the Application Notes section of the Freescale Web site CSM12C32 SCH B pdf CSM12C32 Module Schematic Rev B CSM12C32 UG
10. e the circuit trace between the cut trace pads to open the circuit To restore the circuit functionality install 1206 size 0 resistor or a short piece of wire across the cut trace pads Table 1 Serial COM Signals COM Signal MCU Port Connector Disable TXD PS1 TXD J1 5 CT5 PSO RXD J1 7 CT4 COM Connector A standard 9 pin Dsub connector provides external connections for the COM port The COM port is configured as a DCE device Component U2 provides RS 232 translation services The figure below shows the DB9 connector Figure 2 COM Connector Female DB9 connector that interfaces to the DCE serial port via an 6 RS232 transceiver It provides simple 2 wire asynchronous serial com TXD 2 munications without flow control A straight through serial cable may be 7 RTS connected to a DTE device such a PC 3 4 8 CTS Pins 1 4 and 6 are connected together m 9 NC GND 5 Connector J 1 Connector J1 provides access to CSM12C32 1 0 port signals CSM12C32 JUNE 8 2005 Figure 3 MCU PORT Connector Vx 1 2 1 Default Signal Assignments GND 3 4 RESET MCU PORT Signal Disable PS1 TXD 5 6 MODC BKGD PSO RXD 7 8 PS1 TXD CT 5 PP5 KWP5 9 10 PSO RKD CT 4 PEO XIRQ 11 12 PE1 IRQ SW1 User1 PTO PWO IOCO 13 14 NC PP5 KWP5 SW2 User2 PT1 PW1 IOC
11. mat Removed BOM and Schematic June 8 2005 D Updated installed monitor information Added BOM to appendix CSM12C32 J UNE 8 2005 CAUTIONARY NOTES 1 Electrostatic Discharge ESD prevention measures should be used when handling this product ESD damage is not a warranty repair item 2 Axiom Manufacturing does not assume any liability arising out of the application or use of any product or circuit described herein neither does it convey any license under patent rights or the rights of others 3 EMC Information on the CSM12C32 module a b This product as shipped from the factory with associated power supplies and cables has been verified to meet with requirements of CE and the FCC as a CLASS B product This product is designed and intended for use as a development platform for hardware or software in an educational or professional laboratory In a domestic environment this product may cause radio interference in which case the user may be required to take adequate prevention measures Attaching additional wiring to this product or modifying the products operation from the factory default as shipped may effect its performance and cause interference with nearby electronic equipment If such interference is detected suitable mitigating measures should be taken TERMINOLOGY This module uses option selection jumpers and cut traces to setup default configuration Ter minology for application of the opti
12. nzero value will allow the interrupt to proceed to the user s service routine that should be located at the address indicated The interrupt service delay is 21 cycles over the standard interrupt service To use vectors specified in the table the user must insert the address of the interrupt service routine during software initialization into the ram interrupt table For an example for the IRQ vector the following is performed Example IRQ Service routine label IRQ_SRV Ram Vector Table address is defined in table below IRQ vector definition VIRQ EQU 0FF2 define ram table vector location Place IRQ service routine address in the table MOVW IRQ_SRV VIRQ This vector initialization will remain in effect until a RESET is invoked Interrupt Vector Table Table 5 MON12 Interrupt Vector Table 12 Ram Interrupt Vector MCU Interrupt Vector TRAP code Vector Address Address Source OF8A FF8A 02 LVI OF8C FF8C 04 PWME OF8E FF8E 06 PTPI OF90 FF90 08 C4TX CSM12C32 0 92 FF92 C4RX OF 94 FF94 0 C4ERR OF96 FF96 C4WU OF98 FF98 10 C3TX OF9A FF9A 12 C3RX OF9C FF9C 14 C3ERR OF9E FF9E 16 C3WU OFAO 18 C2TX OFA2 FFA2 1A C2RX OFA4 FFA4 1C C2ERR OFA6 FFA6 1E C2WU OFA8 20 C1TX OFAA FFAA 22 C1RX OFAC 24
13. on jumpers is as follows Jumper a plastic shunt that connects 2 terminals electrically Jumper on in or installed jumper is installed such that 2 pins are connected together Jumper off out or idle jumper is installed on 1 pin only It is recommended that jump ers be idled by installing on 1 pin so they will not be lost Cut Trace a circuit trace connection between component pads The circuit trace may be cut using a razor knife to break the default connection To reconnect the circuit simply install a suitably sized 0 resistor or attach a wire across the pads CSM12C32 J UNE 8 2005 FEATURES The CSM12C32 is an educational module for the FREESCALE MC9S12C32 microcontroller The included wall plug DB9 serial cable sample software tools examples and debug monitor makes application development quick and easy A background DEBUG port is provided for development tool use and is compatible with HCS12 BDM interface cables and software A monitor has also been preloaded into MCU Flash to provide the user with a simple develop ment platform The monitor is accessible through the COM connector A 40 pin connector al lows the CSM12C32 module to be connected to an expanded evaluation environment such as the Axiom Manufacturing MCU Project Board 2 Features MC9S12C32 MCU 48 32K Byte Flash EEPROM 2K Bytes RAM 31 lines Timer PWM SCI and SPI Communications Ports Key Wake up Port BDM DEBUG Port CAN 2 0 Mo
14. ropriate MCU port causes the LED to light MCU ports PAO and PB4 drive LED1 and LED2 respectively 10 CSM12C32 J UNE 8 2005 DEVELOPMENT SUPPORT The CSM12C32 ships from the factory with a serial monitor installed in FLASH An ASCII monitor is also installed to provide quick and easy debug access to the user The text monitor is available out of RESET The serial monitor is available by pressing and holding SW1 as the module exits RESET the discussion below the terms text and ASCII are used inter changeably ASCII Monitor Operation The debug monitor provides a simple application development platform for developing applica tion code The debug monitor allows the user to quickly and easily develop and debug RAM based application code The debug monitor is accessible through the COM port using an ASCII terminal program such as HyperTerminal or AxIDE The terminal should be configured for 9600 8 1 with no flow control The monitor relocates the hardware interrupt vector table from OxFF8A 0xFFFF to OXOF8A OxOFFF see Table below The vectors remain in the same order as the default hardware table The Reset vector is reserved user should use autostart to start applications from reset ASCII Monitor Memory Table 3 Monitor Memory Map 0000 Registers 1K bytes 03FF Reserved 0800 Internal RAM 1 5K bytes 0DFF 0 00 Monitor Reserved 0F8B Relocated Inter
15. rupt Vector Table OFFF Reserved 8000 User Program Memory 16K bytes BFFF C000 Protected Monitor Space 16K bytes FFFF Monitor Commands Table 4 Monitor Commands BF lt StartAddress gt lt EndAddress gt lt data gt Block Fill memory range with data BR lt Address gt Set Display user breakpoints CALL lt Address gt Call user subroutine at lt Address gt 11 CSM12C32 JUNE 8 2005 lt Address gt Begin continue execution of user code HELP Display the Mon12 command summary LOAD P Load S Records into memory P Paged S2 lt StartAddress gt lt EndAddress gt Memory Display Bytes MM lt Address gt Modify Memory Bytes 8 bit values MW lt Address gt Modify memory Words 16 bit values MOVE lt StartAddress gt lt EndAddress gt lt DestAddress gt Move a block of memory RD Display all CPU registers OFFSET arg Offset for download Proceed Continue program execution RM Modify CPU Register Contents STOPAT lt Address gt Trace until address T lt count gt Trace lt count gt instructions NOTE Items in Italics are not implemented at this time Interrupt Support All interrupt services under are provided through the relocated vector table see Table 5 below Each location in the table is initialized to a value of 0000 to cause the trap of an unscheduled interrupt Any no
16. s Ox3FFF Relocated Reserved 0x8000 Fixed Flash EEPROM Block 1 16K bytes OxBFFF visible at RESET 0 000 Fixed Flash EEPROM Block 2 OxF77F 13 8K bytes OxF780 User Vectors Relocated OxF7FF User Reset Vector F7FE F7FF 2 12K bytes OxF800 Vectors Protected y OxFFFF NOTE Although the monitor does not support external memory the user can enable external memory accesses in the unfilled areas of the memory map The 2K byte serial monitor program provides an RS 232 serial interface to a host PC Serial data rate is 115 2K bps The monitor is compatible with Metrowerks CodeWarrior Develop ment Studio and other serial monitor interface IDE s The serial monitor is not compatible with ASCII interface programs such as HyperTerm or AxIDE The monitor supports 23 primitive commands to control the target MCU To allow a user to specify the address of each interrupt service routine this monitor redirects interrupt vectors to an unprotected portion of FLASH To boot to the serial monitor the user simply pressed and holds SW1 while pressing the RESET switch or applying power The status of SW1 is read only during the rising edge of RESET To load user application on start up the user is responsible for programming the pseudo reset vector OxF7FE 0xF 7FF Pressing SW1 after the MCU exits reset will not ac cess the serial monitor After exiting reset pressing SW1 has effect as defined in the user ap plication BDM PORT He
17. tor or a short piece of wire across the cut trace pads Timing A ceramic resonator Y1 provides a 16 0 MHz base operating frequency to the MCU This supports a default 8 0 MHz internal operating frequency Higher frequencies are possible us ing the embedded PLL The resonator output is routed to the MCU only and is not available at the MCU Port connector J1 The MCU ECLK output is available to the user at connector J1 if enabled CSM12C32 JUNE 8 2005 Communications The CSM12C32 module provides a single RS 232 communications port An RS 232 trans ceiver U2 provides RS 232 signal level to TTL CMOS logic level translation RS232 signals TXD and RXD are routed between the transceiver and the MCU These signals are also routed to connector J1 RS 232 communication signals input on J1 must be TTL CMOS logic levels no translation support is provided through this path The transceiver output may also be driven off module if the signals are suitably buffered As added development support hardware flow control signals RTS and CTS are available on the logic side of U2 These sig nals are routed to vias located near the transceiver U2 RTS has been biased properly to support 2 wire RS 232 communications Use of the J1 connector to input RS 232 signals requires disabling the on board RS 232 trans ceiver Otherwise signal corruption may occur Disabling the on board transceiver is accom plished by opening cut traces CT1 and CT2 Simply remov
18. xr EE AE DR ea E AG 12 SERIAL MONITOR OPERA TIOBL 22 14 SERIAL MONITOR MEMORY iiti artt eu atrio Ras 14 BDM PORT HEADER aede ea e cea cR a ex UO LE CLA A E CE RA XR EAR 14 MECHANICAL DETAILS DR Rd FR v FR ua 16 APPENDDE A iude uisi a E e 17 MATERIA S a M MM A M A TU 17 CSM12C32 JUNE 8 2005 FIGURES Fig re 8 Figure 2 COM COMMGCION oisi t oen await luta e Nr Er eL TEE 9 Figure 3 MCU_PORT GODHDOCEOFD s rcnt rite tatem det cee epee ai cade ede nenne ed ated 10 4 BDM POR Po devant ocean a cael catalase diel 15 TABLES Table 1 Serial COM ESeiqe 9 Table 2 User OptondJumper SelfiDiS sso ounce 10 Table 4 Monitor Commands Ss tec Ne St Ae D p UT C UE MU D A Ed 11 Table 5 Monitor Memory 11 Table 6 2 Interrupt Vector iei tna 12 Table 7 Serial Monitor Memory nenne nennen 14 REVISION February 22 2005 B Update initial release April 7 2005 C Updated monitor information Differentiated between serial monitor and debug monitor Updated docu ment for
19. y be sourced off module through connector J1 to external circuitry Power routing on the module is determined by the PWR SEL jumper PWR The PWR connector accepts a 2 1mm center positive barrel plug that allows the module to be powered from a wall plug transformer or from a desktop power supply Input voltage should be limited to between 7V and 20V Input voltage of 9VDC is typical This input supplies the on board 5V regulator that powers the module Connector J 1 Power may be supplied to the module through the pins J1 1 and J1 2 Use of this option re quires a regulated voltage input limited to the range of 3 to 5VDC This input is con nected directly to the module power and ground planes Care should be exercised not to over drive this input Use of connector J1 to supply 3 3V to the module requires disabling the volt age supervisor LV1 by opening cut trace CT 1 See the Low Voltage Detect section below To re enable the low voltage supervisor install a 1206 sized 0 ohm resistor at CT1 Connector J1 may also be used to source 5V power from the on board regulator to external modules attached to connector J1 The PWR SEL option header determines how power is routed to the module CSM12C32 JUNE 8 2005 PWR SEL umper The PWR SEL jumper is a 4 position option header that configures power routing on the CSM12C32 module The module may be powered by an external transformer connected to the PWR connector or through
Download Pdf Manuals
Related Search