NORAL BDM Target Interface
Contents
1. Module base address hex 23 EKMEN Breakpoint Mesk High BRKA hex BRKD heg Ries E ee dm Hel HIVE RAVA ompaaie nage r I ES BRIRW iionpere vale Disabled BRORWE R7 Compare Enable BROR WAY Compare Value BKIALE Breakpoint 1 Range Control BK ALE Breakpoint 0 Range Control Cancel Help In order to set the debugger correctly the address of the hardware breakpoint mod ule must be set in the Module base address edit box The Module base address is typically 0x20 for the M68HC912B32 M68HC912D60 and M68HC912DG128 For other derivatives please refers to Motorola s documentation When those settings are done any breakpoint which is set in Non Volatile Memory is considered by the debugger as an Hardware Breakpoint If your application is loaded in RAM breakpoints are software breakpoints In this case the Hardware Breakpoint module gives you the possibility to debug with breakpoints and watchpoint only one watchpoint is available For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 19 Freescale Semiconductor Hne Note In Automatic mode the HC12 hardware breakpoint module allows only two breakpoints or one watchpoint at the same time If you are debugging your code in FLASH you can not set more than two breakpoints or one watch point Note Some actions like stepping over2. LESE M M ok For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 27 Freescale Semiconductor Hne HOTPLUG Connection The Flex BDM interface HOTPLUG feature gives you the possibility to connect to a stand alone running hardware equipped with a BDM connector and therefore to trace the current running code Who to Hotplug with the Noral BDM Target Interface 1 IMPORTANT Your STARTUP CMD and RESET CMD should not execute any hardware access command like WB write byte commands If this kind of com mand exists put these commands into comments with 2 Power supply your Flex BDM interface Do NOT connect the BDM connect now 3 Start the HI WAVE debugger and load the Noralbdm target After a short while the dialog below is displayed Communication Device Specification Communication Device PICLPT DLL PORT 1 Show Protocol ponte Montant 4 After checking the HotPlug connection checkbox click the Connect button The HOTPLUG Connection message informs you that you are about to hotplug From this point you can cancel the operation clicking No or go on clicking Yes HOTPLUG Connection A You attempt to hotplug on a hardware BDM port Do you want to continue 5 When clicking Yes the Flex BDM interface connector is de activated like if each wire was in high impedance le
3. Freescale Semiconductor Inc Introduction Another advanced feature of HI WAVE for the embedded system development world is the ability to load different Framework targets The Noral BDM Back ground Debug Interface is introduced in this document The Noral BDM is an interface developed by Noral and used by HI WAVE to com municate with an external system also called target system With this interface you can download an executable program from the HI WAVE environment to an external target system based on a Motorola MCU which will exe cute it You will also have the feedback of the real target system behaviour to HI WAVE HI WAVE will fully supervise and monitor the MCU of the target system i e con trol the CPU execution You can read and write in internal external memory even when the CPU is running single step run stop the CPU set breakpoints in the code Note Unconcerned Components As the code is executed by an external MCU memory statistics are not available with the Noral BDM tar get component Therefore Profiling Coverage analysing and I O simula tion will not work with the Noral BDM For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 7 Freescale Semiconduc tor Inc Interfacing Your System and Noral BDM Note Noral BDM Structure Configuration Connection to the Host Connection to the Target Working Modes are described in Flex Tools Use
4. or stepping out use one internal breakpoint and therefore reduce your amount of hardware breakpoint to one Note The M68HC812A4 does not have any Hardware Breakpoint module Note The M68HC912DG128 hardware breakpoint module is not always able to handle correctly breakpoints on banked code as address matching is only done on 2 bytes regardless the PPAGE User Controlled mode This mode allows you to fully set up the breakpoint module according to Motorola s documentation The following registers can be modified 1 BRKCTO Breakpoint Control Register 0 2 BRKCT1 Breakpoint Control Register 1 3 BRKA Breakpoint Address Register 4 BRKD Breakpoint Data Register For more information about those registers please refers to your MCU reference manual section Breakpoints of the Background Debug Mode Development Support part of the manual Note When a hardware breakpoint or watchpoint is set in User controlled mode the message displayed in the status bar when the breakpoint or watchpoint is reached is ILLEGAL_BP Note If the control point set is a breakpoint it is needed to perform a single step before running again the target otherwise the target will endlessly break on the same address bus access For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE 20 On Chip Hardware Breakpoint Freescale Semiconductor Inc Setting hardware breakpoints in user controlled mode BDM Dual
5. NV SAVE WSP and NV AUTO ID variables description e BPModuleAdr Syntax BPModuleAdr lt address of the breakpoint module Location PROJECT INI Associated to Hardware Breakpoint Configuration dialog Short Description The BPModuleAdr variable is used to specify the address of the hardware breakpoint module This address is needed if the hardware breakpoint module is in Automatic controlled by debugger mode or in User Controlled mode BPModuleMode Syntax BPModuleMode 0 1 2 Location PROJECT INI For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 35 Freescale Semiconductor Inc Associated to Hardware Breakpoint Configuration dialog Short Description The BPModuleMode variable is used to specify the hardware breakpoint module mode BPModuleMode 0 the hardware breakpoint module is disabled BPModuleMode 1 the hardware breakpoint module is in Automatic con trolled by debugger mode In this case variable BPModuleAdr is used to specify the address of the breakpoint module e BPModuleMode 2 the hardware breakpoint module is in User Controlled mode In this case the variable BPModuleAdr is used to specify the address of the breakpoint module REG_BRKCTO REG_BRKCT1 REG BRKA and REG BRKB are used to store the values set in registers BRKA BRKB BRKCTO and BRKCT1 of the hardware breakpoint module e COMDEV Syntax COMDEV lt Noral parallel
6. If the breakpoint can be reached the debugger is stopped and ILLEGAL BP is displayed in the status bar 10 To run the target again it is needed to first perform an assembly or single step otherwise the same breakpoint is reached again and again For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 21 Freescale Semiconductor tne Setting one second hardware breakpoint in user controlled mode BDM Dual Address Mode To set one second hardware breakpoint in User Controlled mode perform the fol lowing steps 1 Set the address of the second breakpoint in the BRKD register 2 In BRKCTO the BKIALE bit is set so that the full 16 bit value in BRKD is used to compare the address bus 3 In BRKCTI the BKDBE bit is set to enable the comparison of BRKD with the address bus In the following bitmap two hardware breakpoint are set at address OxCO80 and OxCOSF Mode user controlled BRKCTI Iv BKDBE Enable Data Bus Module base address hex 20 BKMBH Breakpoint Mask High BKMBL Breakpoint Mask Low BRKA hex Coso BRAKE hex CosF EIE BKIRWE RAW Compare Enable BKIRW RAW Compare Value BDM Dual Address Mode z BKORWE RAW Compare Enable IV BKPM Break on Program Addresses 1 BKORW R w Compare Value v BKIALE Breakpoint 1 Range Control Cancel Help Iv BKOALE Breakpoint 0 Range Control
7. communication 7 SETVPP 11 33 Show Protocol 10 SHOWPROT 14 37 STARTUP CMD 8 27 29 29 29 Statistics 6 Status bar 12 V Variables 34 Voltage 33 Voltage for flash programming 11 W Watchpoint 17 21 22 For More Information www freescale com HIWAVE
8. port communication DLL filename gt PORT lt LPT port number Example COMDEV PICLPT DLL PORT 1 Location PROJECT INI Associated to Communication Device Specification dialog Short Description The communication DLL file and port to be used on the host computer can be specified using the variable COMDEV e MCUClockSpeed Syntax MCUClockSpeed lt X tal value Hz 2 gt Location PROJECT INI Associated to Set MCU Speed dialog Short Description The target MCU X tal frequency 2 e MCUClockType Syntax MCUCLOCKTYPE ASYNC ECLK OSC 2 Location PROJECT INI Associated to Set MCU Speed dialog Short Description The BDM clock mode can be set up through this environment variable For details please see section Clock Configuration The asynchronous For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE 36 Noral BDM Target Environment Variables Freescale Semiconductor Hne mode is set as default mode This environment variable will be overwritten if the BDM clock mode is changed in a later debug session e MCUID Syntax MCUID lt MCU ID of the connected derivative gt Location PROJECT INI Associated to MCU Selection dialog Short Description The MCUID variable is used to store the MCU ID of the deriva tive connected to the Flex interface Each MCU has its own MCU ID which is assigned by Motorola e REG BRKA Syntax REG BRKA value in the BRKA register Location PROJECT INI
9. 0 to OxBFFF The PPAGE register located at address OxFF will be displayed in the register component Example BANKWINDOW PPAGE 0x8000 0xBFFF 0x35 BANKWINDOW DPAGE 0x7000 0x7FFF 0x34 BANKWINDOW EPAGE 0x0400 0x07FF 0x36 These 3 consecutive commands set the Noral BDM interface to use the banked memory model with an HC12A4 derivative wired with codepage datapage and extrapage For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 31 Freescale Semiconductor Inc PROTOCOL Short Description switches on off the Show Protocol functionality Syntax PROTOCOL ON OFF Description If this command is used all the messages sent to and received from the CD 12 interface are reported in the Command Line window of HI WAVE Example PROTOCOL ON Note The Show Protocol is a useful debugging feature if there is a communication problem For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE 32 Noral BDM Target Component Commands Freescale Semiconductor Inc RESET Short Description resets of the target board Syntax RESET Description With this command it is possible to reset the target from the Command Line compo nent of HI WAVE The target board is reset and the reset vector is read in the target memory from the vector table address OXFFFE Example RESET For More Information www freescale com Co
10. 4 Click Ok to close the Hardware Breakpoint Configuration dialog 5 Run the target If the breakpoints can be reached the debugger is stopped and ILLEGAL BP is displayed in the status bar Do not forget to perform a single step before running the target otherwise the target will stop again on the same breakpoint Setting watchpoints in user controlled mode BDM Dual Address Mode Setting one watchpoint in user controlled mode BDM Dual Address Mode To set a watchpoint in User Controlled mode perform the following steps 1 Open the Hardware Breakpoint Configuration dialog For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE 22 On Chip Hardware Breakpoint Freescale Semiconductor Inc Select the User Controlled mode in the Mode list box Specify the address of the breakpoint module in Module base address edit box Set the address of the watchpoint in the BRKA register In the BRKCTO group select the BDM Dual address Mode for the breakpoint module 6 The BKOALE bit is set so that the full 16 bit value in BRKA is used to compare the address bus Un BW D In the following bitmap one read write access watchpoint is set at address 0x2000 the access size for this watchpoints is byte Hardware Breakpoint Configuration x Mode User controlled gt BRKCTI BKDBE Enable Data Bus Module base address hex 20 BKMBH Breakpoint Mask High BKMBL Breakp
11. Address Mode Setting one hardware breakpoint in user controlled mode BDM Dual Address Mode To set an hardware breakpoint in user controlled mode perform the following steps Open the Hardware Breakpoint Configuration dialog Select the User Controlled mode in the Mode list box Specify the address of the breakpoint module in Module base address edit box Set the address of the breakpoint in the BRKA register In the BRKCTO group select the BDM Dual address Mode for the breakpoint module 6 The BKPM bit must be set so that the breakpoint module breaks if the match is on an instruction that will be executed 7 The BKOALE bit is set so that the full 16 bit value in BRKA is used to compare the address bus mA BWN Re In the following bitmap one hardware breakpoint is set at address OxCO80 Hardware Breakpoint Configuration xi Mode User controlled gt BRKCTI BKDBE Enable Data Bus Module base address hex 20 BKMBH Breakpoint Mask High BKMBL Breakpoint Mask Low BRAKA hex coso BRAKE hex o ET BKIRWE R w Compare Enable BKIRW R w Compare Value BDM Dual Address Mode z BKORWE R W Compare Enable Iv BKPM Break on Program Addresses BKORW R w Compare Value BKIALE Breakpoint 1 Range Control Cancel Help v BKOALE Breakpoint 0 Range Control 8 Click Ok to close the Hardware Breakpoint Configuration dialog 9 Run the target
12. Associated to Hardware Breakpoint Configuration dialog Short Description The REG BRKA variable is used to store the value of the BRKA register of the breakpoint module when it is used in User Controlled mode For more details about the BRKA Breakpoint Address Register register please check your MCU documentation from Motorola e REG BRKB Syntax REG BRKB value in the BRKB register Location PROJECT INI Associated to Hardware Breakpoint Configuration dialog Short Description The REG BRKB variable is used to store the value of the BRKB register of the breakpoint module when it is used in User Controlled mode For more details about the BRKB Breakpoint Data Register register please check your MCU documentation from Motorola e REG BRKCTO Syntax REG BRKCTO value in the BRKCTO register Location PROJECT INI Associated to Hardware Breakpoint Configuration dialog For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 37 Freescale Semiconductor _tne Short Description The REG_BRKCTO variable is used to store the value of the BRKCTO register of the breakpoint module when it is used in User Controlled mode For more details about the BRKCTO Breakpoint Control Register 0 register please check your MCU documentation from Motorola e REG BRKCT1 Syntax REG_BRKCT1 lt value in the BRKCT1 register Location PROJECT INI Associated to Hardwar
13. HI WAVE NORAL BDM Target Interface Freescale Semiconductor Inc Product Manual Manual Date HI WAVE NORAL BDM Copyright 1987 1999 HIWARE HIWAVE For More Information www freescale com Freescale Semiconductor _tne Contents HC12 NORAL BDM Target Interface 5 b rag qe PUE 3 Introd cese ee eeu aun dd ie Rene VR d 6 Interfacing Your System and Noral BDM 7 Loading the Noral BDM Target Component 8 The HI WAVE Status Bar for the Noral BDM 11 Noral BDM Target Component Menu Entries 13 Loading an application a suesuexe crurum essei ide E e wd EAR das 13 RES re 13 Communication Specification a osse ceedaRbR A ERR EAR ES RRSSA DERE 13 MCU Selection 22s cesadaxeba debkext4mmadx4wbkas r amp v a drca 14 MCU lock Frequency 49x aX EQ HERE RUPEE der ne des 15 Hardware Breakpoint Configuration 16 On Chip Hardware Breakpoint 17 Disabled modes sun dan ed Ree da eh Ee EN Ne eines 17 Automatic controlled by debugger mode 18 User Controlled modes seas csdsesssdoidetaatestesas ssostantons 19 HOTPLUG Connection qe sac d e t Un ROGER RACER COR Y 27 Who to Hotplug with the Noral BDM Target Interface 27 Noral BDM Target Component Commands 29 Noral BDM Target Environme
14. KCTI v BKDBE Enable Data Bus Module base address hex 20 BKMBH Breakpoint Mask High BKMBL Breakpoint Mask Low BRAKA hex 2000 BRAKE hex 2002 BLUE BKIRWE RAW Compare Enable BKIRW RAW Compare Value BDM Dual Address Mode z BKORWE RAW Compare Enable BKPM Break on Program Addresses T BKORW R w Compare Value v BKDALE Breakpoint 0 Range Control Cancel Help 4 Click Ok to close the Hardware Breakpoint Configuration dialog 5 Run the target If the watchpoints can be reached the debugger is stopped and ILLEGAL BP is displayed in the status bar Note two bytes access size watchpoint can be set up by using two contiguous one byte access size watchpoint Controlling the kind of access of the two watchpoints in user control led mode BDM Dual Address Mode The breakpoint module can be set up so that a break occurs on a read a write or a read write data access For each watchpoint two bytes are defined in the BRKCT1 register to set up the kind of access BKORWE and BKORW are use to set up the kind of access on the address speci fied in the BRKA register BK1RWE and BK1RW are use to set up the kind of access on the address speci fied in the BRKD register The following table shows how to define the values in those registers to select the correct access kind BKxRWE BKxRW READ WRITE 0 0 WRITE 1 0 READ 1 1 For Mor
15. Loading the Noral BDM Target Component Freescale Semiconductor tne When the Noral BDM Target Component has been loaded specific information are given in the HI WAVE status bar From the left to the right are displayed the BDM clock speed in case the asynchronous clock is used the voltage of the target the target CPU and the Noral BDM status For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 13 Freescale Semiconductor Hne Noral BDM Target Component Menu Entries Bun GERS Component Memory Load Ctrl L Reset Ctri R pem low Communication Set MCU Type Set MCU Speed Set Hardware BP Flash Help Loading an application Choose Noral BDM Load to load the application to debug i e a ABS file Reset The Command Noral BDM Reset executes the reset command file RESET CMD file and resets the target system processor Communication Specification Select entry Noral BDM Connect to display the dialog box shown below If the connection to Noral BDM unit is ok the menu entry Connect changes to Communication and only the Show Protocol box can be modified Communication Device Through this box the used communications DLL file and the communication port can be specified For the standard DLL it is PICLPT DLL and for the LPTI port of the host computer it is PORT 1 For More Information www fre
16. M connector 33 Disabled mode 17 BKOALE 20 22 User controlled mode 19 BKORW 23 Hardware Breakpoints BKORWE 23 conditional watchpoint in user controlled BKIALE 21 22 mode 24 BKIRW 23 hardware breakpoints in user controlled BKIRWE 23 mode 20 BKDBE 21 22 watchpoints in user controlled mode 21 BKPM 20 HotPlug 14 BPModuleAdr 34 HotPlug connection 14 BPModuleMode 34 Hotplug Connection 27 Breakpoint 16 18 19 Breakpoints 17 BRKA 19 20 L BRKCTO 19 20 21 22 22 Loading an application 13 BRKCTI 19 21 22 LPT port 10 BRKD 19 21 22 22 M C M68HC812A4 19 Clock 15 M68HC912B32 18 COMDEY 14 35 M68HC912D60 18 Communication 7 13 M68HC912DG128 18 19 Communication port 10 MCU Clock Frequency 15 MCU Name 8 For More Information www freescale com O Copyright 1987 1999 HIWARE HIWAVE 40 MCU selection 14 15 MCU Speed 15 MCU Type 14 MCUCLOCKSPEED 16 MCUCIockSpeed 35 MCUCLOCKTYPE 16 MCUClockType 35 MCUID 15 36 MCUId 8 MCuid 15 MDSEMCU INI 15 Mdsemcu ini file 9 Module base address 18 N NORAL FLEX BDM section 34 Noral BDM 7 Interface 7 Interfacing 7 Noralbdm 8 O Oscillator 16 Oscillator clock 11 P Parallel port 10 PICLPT DLL 10 13 PICLPTNT DLL 10 PORT 13 Port 10 Programming voltage 11 33 PROJECT INI 8 34 PROTOCOL 31 Protocol 10 14 R REG BRKA 36 REG BRKB 36 REG BRKCTO0 36 REG BRKCTI 37 RESET 32 RESET CMD 27 O Copyright 1987 1999 HIWARE Freescale Semiconductor Inc S Serial
17. M unit uses the target oscillator The target oscillator must be double the ECLK frequency The flying lead ECKL of the Noral BDM unit must be connected to the oscillator clock of the target The BDM clock for asynchronous mode and the BDM clock mode can be set through the environment variables MCUCLOCKSPEED and MCUCLOCKTYPE and through menu command Noral BDM Set MCU speed Please see section Noral BDM Default Environment and Noral BDM Target Com ponent Menu Entries The asynchronous clock is set as default mode and the default BDM baud rate is set to 6 MHz The flying leads MODA and MODB are needed to control the processor s start up mode This prevents that the MCU begin normal execution until it is brought under control by entering BDM mode Flash Programming The HI WAVE Noral BDM interface has a build in FLASH Programming inter face to program onchip FLASH EEPROM modules that you can open when choos ing the Flash entry in the Noral BDM menu This FLASH Programming utility must be licensed to work without size limitation Please see the HI WAVE Flash Programming manual to know more about the usage of this interface Note It is necessary to switch the Flash Programming voltage on with the SETVPP command before loading an application in Flash The HI WAVE Status Bar for the Noral BDM 6 000 MHz 5 09 V 68HC12B32 Flex BDM ready 7 For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE 12
18. atchpoints can be reached the debugger is stopped and ILLEGAL BP is displayed in the status bar The debugger stops on read access at the address in BRKA and on write access at the address in BRKD Note If a two bytes access size watchpoint has been set up by using two contigu ous one byte access size watchpoint the settings for the access kind should be the same for the registers BRKA and BRKD Setting one conditional watchpoint in user controlled mode BDM Full Breakpoint Mode To set a conditional watchpoint in User Controlled mode perform the following steps For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 25 Freescale Semiconductor Hne Open the Hardware Breakpoint Configuration dialog Select the User Controlled mode in the Mode list box Specify the address of the breakpoint module in Module base address edit box Set the address of the watchpoint in the BRKA register Set the value to match on break in the BRKD register This value is an hexadeci mal value 6 In the BRKCTO group select the BDM Full Breakpoint Mode for the breakpoint module 7 The BKOALE bit is set so that the full 16 bit value in BRKA is used to compare the address bus 8 In the BRKCTI group the BKDBE bit is set to enable the BRKD register Un amp D In the following bitmap a conditional read write access watchpoint is set at address 0x2002 the d
19. e Breakpoint Configuration dialog Short Description The REG BRKCT1 variable is used to store the value of the BRKCT1 register of the breakpoint module when it is used in User Controlled mode For more details about the BRKCT1 Breakpoint Control Register 1 register please check your MCU documentation from Motorola e SHOWPROT Syntax SHOWPROT 1 0 Location PROJECT INI Associated to Communication Device Specification dialog Short Description If the Show Protocol is used all the commands and responses sent and received are reported in the Command Line component of HI WAVE If the variable is set to 1 Show Protocol is activated For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE 38 Noral BDM Target Environment Variables Freescale Semiconductor Hne For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE Index 39 Freescale Semiconductor Hne Index P DEFAULT ENV 14 15 16 34 Dual Address Mode 22 f E Numerics ECKL 16 68HC12A4 9 ECKL signal 11 68HC12B32 9 Environment Variables 34 68HC12D60 9 68HC12DA128 9 68HC12DG128 9 F FLASH 11 FLASH Programming 11 A Asynchronous 15 Asynchronous clock 11 H Automatic Hardware Breakpoint 18 Hardware Breakpoint 16 17 Hardware Breakpoint Configuration 17 Hardware breakpoint configuration 16 B Hardware Breakpoint module BANKWINDOW 29 Automatic controlled by debugger mode BDM connector 33 mode 18 Berg BD
20. e Information www freescale com Copyright 1987 1999 HIWARE HI WAVE 24 On Chip Hardware Breakpoint Freescale Semiconductor Hne The following example show how to set up the READ WRITE default watchpoints set in the previous section to be READ or WRITE watchpoints 1 The BKxRWE bit of BRKCTI register must be set for both watchpoints so that the access kind is checked 2 Leave the BKORW bits reset in BRKCTI The hardware breakpoint modules will break on a WRITE access for the address in BRKA 3 Set the BKIRW bits in BRKCTI The hardware breakpoint modules will break on a READ access for the address in BRKD In the following bitmap a write access watchpoint is set at address 0x2000 and a read access watchpoint is set at address 0x2002 the access size for those watch point is 1 byte Hardware Breakpoint Configuration Ei Mode User controlled gt BRKCTI Iv BKDBE Enable Data Bus Module base address hex 20 BKMBH Breakpoint Mask High BKMBL Breakpoint Mask Low BRKA hex 2000 BRKB he 2002 ee M BKIRWE R w Compare Enable Iv BKIRW RAW Compare Value BDM Dual Address Made z 7 BKORWE RAW Compare Enable BKPM Break on Program Addresses BKORW R w Compare Value Iv BKIALE Breakpoint 1 Range Control Cancel Help v BK ALE Breakpoint 0 Range Control 4 Click Ok to close the Hardware Breakpoint Configuration dialog 5 Run the target If the w
21. e standard DLL is used and the BDM unit is connected to LPT1 PICLPT DLL Port 1 For NT installation the default communication DLL is PICLPTNT DLL Show Protocol If the Show Protocol box is checked the communication functions delivered from Noral Micrologics which are called from the Noral BDM target component are reported in the Command Line window The default state is unchecked Note This feature is used by support personnel from HIWARE Clock Configuration Use asynchronous clock Clock Frequency 6 000 MHz C Use ECLK C Use oscillator Cancel Help For communication between the Noral BDM unit and the target system the clock For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface jin Freescale Semiconductor tne type of the BDM unit must be set correctly This is the clock the BDM unit uses to synchronize with the target BDM There are different modes possible Asynchronous clock In this mode the Noral BDM unit uses its own internal clock thus running asynchronously with the target The optional ECLK signal is not needed The internal clock must be configured with the BDM baudrate of the target ECKL The Noral BDM unit uses the ECKL signal of the target which allows changes of the BDM clock on the target In this mode the flying lead ECKL of the Noral BDM unit must be connected to the ECKL of the target Oscillator The Noral BD
22. ebugger and User Controlled Hardware Breakpoint Configuration x BRKCT1 EKDEE Enable Data Bus Mode BE Disabled Module pe by debugger EKME Breakpoint Mask Argh i E nl DER 77777 D BKMEL Breakpoint Mask Low EME EE Compare Enable fee BRIRW Ry Compare Value Disabled id ER WE B W Gompere Enable EKREM Break on Program Addresses D BRORW AY Gompare Value EKIL Breakpoint 1 Range Control J EROAILE Breakooint ORenge Cantal Cancel Heb Disabled mode This is the default mode for HI WAVE When the hardware breakpoint module is disabled it is not possible to set breakpoint in Flash or in EEPROM It is also not For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE 18 On Chip Hardware Breakpoint Freescale Semiconductor Hne possible to set any watchpoint even if the application is loaded in RAM Note Some actions like stepping over or stepping out use one internal breakpoint and therefore can not be used when debugging in non volatile memory if the hardware breakpoint module is disabled Automatic controlled by debugger mode If the Automatic controlled by debugger mode is selected you have the possibility to set up to two breakpoints in Non Volatile Memory or one watchpoint Hardware Breakpoint Configuration Ed Mode Automatic controlled by debugger BRKCTI ERDEE Enable Data Bus
23. ebugger will stop when the 16 bit value at address 0x2002 is equal to 0x0005 Hardware Breakpoint Configuration Ei Mode User controlled z1 BRKCTI Iv BKDBE Enable Data Bus Module base address hex 20 BKMBH Breakpoint Mask High BKMBL Breakpoint Mask Low BRAKA hex 2002 BRKB hex 5 E BKIRWE RAW Compare Enable BKIRW RAW Compare Value BDM Full Breakpoint Mode z BKORWE RAW Compare Enable BKPM Break on Program Addresses BKORW R w Compare Value BKIALE Breakpoint 1 Range Control Cancel Help Iv BKOALE Breakpoint 0 Range Control The access kind can also be specified using the BKORWE and BKORW bit of the BRKCTI group BKORWE BKORW READ WRITE 0 0 WRITE 1 0 READ 1 1 In the following bitmap a conditional write access watchpoint is set at address 0x2002 the debugger will stop when the 16 bit value at address 0x2002 is equal to 0x0005 and is read For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE 26 On Chip Hardware Breakpoint Freescale Semiconductor Inc Hardware Breakpoint Configuration User controlled Ro Ec E SEM Nu M M Ni In the following bitmap a conditional write access watchpoint is set at address 0x2002 the debugger will stop when 0x0005 is written at address 0x2002 16 bit value Hardware Breakpoint Configuration User controlled Ra
24. enu Entries Freescale Semiconductor Inc clock thus running asynchronously with the target The optional ECLK signal is not needed The internal clock must be configured with the BDM baudrate of the target ECKL The Noral BDM unit uses the ECKL signal of the target which allows changes of the BDM clock on the target In this mode the flying lead ECKL of the Noral BDM unit must be connected to the ECKL of the target Oscillator The Noral BDM unit uses the target oscillator The target oscillator must be double the ECLK frequency The flying lead ECKL of the Noral BDM unit must be connected to the oscillator clock of the target Note The BDM Clock and the BDM Clock Mode saved through this dialog over rides the environment variable MCUCLOCKSPEED and MCUCLOCK TYPE of the DEFAULT ENV file Hardware Breakpoint Configuration Choose Noral BDM Set Hardware BP to open this dialog Hardware Breakpoint Configuration x Mode Disabled sj eb BROBE Enable Data Bus Module base address hex o J BRMEH Breakeoint Mask High BRKA hex BRKD hex D In BRMBL Breakpoint Mask Lov BRKCTO I BKIRWE R w C CMP Braue M EKRW RN Compare value EKIRWE B7 Compare Enable BEKORW R74 Compare Value BRAALE Breakpamt i Range antal BKOALE Breakpoint 0 Range Control This dialog allows to set up the hardware breakpoint module of the used HC12 derivative For details about Hardware Brea
25. escale com O Copyright 1987 1999 HIWARE HI WAVE 14 Noral BDM Target Component Menu Entries Freescale Semiconductor Hne Communication Device Specification Communication Device PICLPT DLL PORT 1 Show Protocol HotPlug connection Cancel Help Show Protocol If the Show Protocol box is checked the communication func tions delivered from Noral Micrologics which are called from the Noral BDM tar get component are reported in the Command Line window Note This feature is used by support personnel from HIWARE For more details please see section Communication Device of chapter Loading the Noral BDM target component Note The communication device and the baud rate saved through this dialog override environment variables SHOWPROT and COMDEV of the DEFAULT ENV file HotPlug connection If the HotPlug connection is checked the debugger enters the HotPlug connection procedure described at section HOTPLUG Connection This checkbox can be checked only checked at Noralbdm target component load ing MCU Selection Choose Noral BDM Set MCU Type to open this dialog 68HC12B32 MCU ID nets In order to initialise the Flex debugger and to perform some operations the MCU type connected to the Flex debugger has to be set correctly Please select the MCU which fits the connected MCU New Cancel Help This dialog allows you to select the MCU currently used There are tw
26. hich are accepted from Noral are 68HC12B32 68HC12A4 68HC12D60 68HC12DG128 68HC12DA128 If the expected MCU name is not contained in the MCU list press the New but ton to open the following dialog New MCU Ed MCU Name 6H C12B32 MCU ID ox03c1 Cancel Help Through this dialog the MCU name can be adapted in such a way that the Noral BDM interface can recognize the used MCU type correctly If the specified MCU Id does not exist a new entry is done in the Mdsemcu ini file Communication Device In case the MCU name was correct specified an no connection can be established an error message pops up and the following dialog appears For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE 10 Loading the Noral BDM Target Component Freescale Semiconductor Inc Communication Device Specification PICLPT DLL PORT 1 Communication Device Show Protocol HotPlug connection Cancel Help Through this dialog the used communications DLL file from NORAL can be specified For the standard DLL it is PICLPT DLL which is also used as default DLL By using an alternative DLL it is possible to support remote network inter faces whereby the Noral BDM unit is connected to a remote PC which is in turn connected via TCP IP to the PC running the HI WAVE The LPT port number which the Noral BDM is connected to must be configured The default port used is LPT1 E g th
27. kpoint Configuration dialog please see section On chip Hardware Breakpoint Note This feature is available only if the HC12 derivative connected to the debug ger through the Noral BDM has an hardware breakpoint module Check your MCU documentation For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 17 Freescale Semiconductor Inc On Chip Hardware Breakpoint On some HC12 derivatives an on chip hardware breakpoint module can be used to set breakpoints and watchpoint To invoke this module it is necessary to set up the debugger to use this on chip hardware breakpoint module This can be done using the Hardware Breakpoint Configuration dialog Select Noral BDM Set Hardware BP menu entry The Hardware Breakpoint Configuration dialog is displayed Hardware Breakpoint Configuration x Mode Disabled BRKCT 4 D EKDBE Enable Data Bus Module base address hex o ni EKMEBH Breakpoint Mask High J EKMEL Breakpoint Mask Low BRKA hex p BRKD hex p BRKCTO EMA WE R7 Campare Enable MEME R74 Compare Value Disabled z E EKIRWE A a Gompere Enable M EKEN Break on Program Addresses 3 ERU WERT opare Value BRIALE Breakpoint 1 Range Control Cancel Help In BKOELE Breakpomt O Renge Control The Mode combo box allows to select between three different modes Disabled Automatic controlled by d
28. menu item is replaced by Noral BDM MERMAIM Component Memory Load Ctrl L Reset Ctrl Ri UE Communication Set MCU Type Set MCU Speed Set Hardware BP Flash Help The startup command file STARTUP CMD is executed by HI WAVE straight after the Noral BDM Target Interface has been loaded This file must be located in the current project directory and might contain any HI WAVE or Noral BDM Target command to setup the hardware target before loading an application Configuration of the MCU Name In order to initialize the Noral BDM and to perform some operations the MCU type connected to the Noral BDM must be set correctly If no MCU Id was specified Please see section Noral BDM Default Environment or the MCU name does not correspond with the expected name an error message pops up and the following dialog appears For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 9 Freescale Semiconductor Inc MCU Selection x 6aHc12832 MCU ID els In order to initialise the Flex debugger and to perform some operations the MCU type connected to the Flex debugger has to be set correctly Please select the MCU which fits the connected MCU New Cancel Help Make sure that the MCU name corresponds exact with the name expected from the Noral BDM interface otherwise connection to the Noral BDM is impossible MCU names w
29. nt Variables 34 ID E E E E E E E ee For More Information www freescale com Copyright 1987 1999 HIWARE HIWAVE Freescale Semiconductor Inc For More Information www freescale com Copyright 1987 1999 HIWARE HIWAVE HC12 NORAL BDM Target Interface 5 tor Inc HC12 NORAL BDM Target Interface Overview e The ntroduction section introduces the Noral BDM Target Interface concept The Interfacing Your System and Noral BDM section gives a small overview on communication between your host the Flex BDM interface and supported hard ware The Loading the Noral BDM Target Component section explain how to set the Noral BDM target interface within HI WAVE The Noral BDM Target Component Menu Entries section describes the different entries of the Noral BDM menu The On Chip Hardware Breakpoint section explains how to use the Hardware Breakpoint Configuration dialog to set hardware breakpoints and watchpoints e The HOTPLUG Connection section explains you how to proceed to hotplug a stand alone running hardware The Noral BDM Target Component Commands section lists all Command Line commands bound to Noral BDM Target Interface e The Noral BDM Target Environment Variables section lists all PROJECT INI and DEFAULT ENV environment variables bound to the Noral BDM Target Inter face For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE 6 Introduction
30. o drop list For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 15 Freescale Semiconductor Hne Combo controls They show the currently selected MCU name and MCU ID The information will be taken from the file MDSEMCU INI If a specific MCU is not found in this file or the MCU name corresponds not exact with the name expected from the Noral BDM interface use the New button to open the dialog shown below New MCU x MCU Name cenici 2B32 MCU ID o 03c1 Cancel Help Through this dialog the MCU name and the MCU Id can be changed For details please see section Configuration of the MCU Name Note The MCU Id saved through this dialog overrides the environment variable MCUID of the DEFAULT ENV file MCU Clock Frequency Choose Noral BDM Set MCU Speed to open this dialog Sets the Noral BDM unit clock type This is the clock the BDM unit uses to synchronize with the target BDM Set MCU Speed x Use asynchronous clock Clock Frequency 000 MHz C Use ECLK C Use oscillator Cancel Help For communication between the Noral BDM unit and the target system the BDM clock must be set correctly There are different modes possible Asynchronous clock In this mode the Noral BDM unit uses its own internal For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE 16 Noral BDM Target Component M
31. oint Mask Low BRAKA hex 2000 BRAKE hex o ELE BKIRWE R w Compare Enable BKIRW R w Compare Value BDM Dual Address Mode Zi BKORWE RAW Compare Enable BKPM Break on Program Addresses BKORW R w Compare Value BKIALE Breakpoint 1 Range Control v BKQALE Breakpoint 0 Range Control Cancel Help 7 Click Ok to close the Hardware Breakpoint Configuration dialog 8 Run the target If the watchpoint can be reached the debugger is stopped and ILLEGAL BP is displayed in the status bar Note A two bytes access size watchpoint can be set up by using two contiguous one byte access size watchpoint Setting one second watchpoint in user controlled mode BDM Dual Address Mode To set a second watchpoint in User Controlled mode perform the following steps 1 Set the address of the second watchpoint in the BRKD register 2 In BRKCTO the BKIALE bit is set so that the full 16 bit value in BRKD is used to compare the address bus 3 In BRKCTI the BKDBE bit is set to enable the comparison of BRKD with the address bus In the following bitmap two read write access watchpoints are set at address For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 23 Freescale Semiconductor Hne 0x2000 and 0x2002 the access size for those watchpoints is 1 byte Hardware Breakpoint Configuration x Mode User controlled gt BR
32. pyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 33 Freescale Semiconductor Inc SETVPP Short Description sets on off the programming voltage of the Flex interface Syntax Syntax SETVPP ON OFF Description This command let your set the programming voltage on to program onchip FLASH EEPROMs with the FLASH programming NVMC interface When the command SETVPP ON is executed the FLEX module delivers the programming voltage through its Berg BDM connector When the command SETVPP OFF is exe cuted the FLEX module delivers no more the programming voltage through its Berg BDM connector Example SETVPP ON For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE 34 Noral BDM Target Environment Variables Freescale Semiconductor Inc Noral BDM Target Environment Variables All environment variables used by the Noral BDM Target Interface component are in the PROJECT INI file or in the DEFAULT ENV file of your current project directory section NORAL FLEX BDM All variables match settings from the Noral BDM Target Interface dialogs They usually must be set within these dialogs The Noral BDM Target Interface specific environment variables are BPModuleAdr BPModuleMode COMDEV MCUClockSpeed MCUCLlockType MCULd REG BRKA REG BRKB REG BRKCTO REG BRKCTI SHOWPROT Note Please see the HI WAVE Flash Programming manual for NV PARAMETER FILE
33. r Manual from Noral The Noral BDM interface is designed around a parallel communication link It is supported by any available communication device of your system PC or SUN The communication protocol between the Noral BDM and your system is fully han dled by the BDM Target driver automatically loaded with the Noral BDM Target Component However you can adapt your target system to the Noral BDM inter face The Noral BDM target system communication is serial The parallel communica tion port will be used to communicate between your computer and the Noral BDM device box parallel lnk Direct Connection to BDM Pins ies y O 3 ln HUE LEE a Target System Host Computer For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE 8 Loading the Noral BDM Target Component Freescale Semiconductor Inc Loading the Noral BDM Target Component Usually the target is set in the PROJECT INI file where Target Noralbdm If no target is set in the PROJECT INI file or if a different target is set you can load the BDM driver selecting in the main menu Component Set Target as shown below and choose Noralbdm in the list of proposed targets The Noral BDM target DLL file is not included in the HI WAVE base installation Target RES Source windo Open lii Set Target Fonts Background Color After a successful target loading the Target
34. t after the Noral BDM Target Interface has been loaded This file must be located in the current project directory You can use any HI WAVE command in this file and take advantage of the wide set of com mands introduced in the HI WAVE manual to setup the target hardware before load ing any application The CD 12 Target Interface specific commands are BANKWINDOW PROTOCOL RESET SETVPP Those commands can be entered in the STARTUP CMD file or in the Command Line component of HI WAVE BANKWINDOW Short Description specify a banked memory area Syntax BANKWINDOW PPAGE DPAGE EPAGE range reg address gt Description With the command Bankwindow it is possible to set up the debugger to work in banked memory model To define a banked memory area the range of memory in the page and the address of the corresponding page register must be defined Three different page registers can be specified DPAGE EPAGE and PPAGE These registers are displayed in the register component For More Information www freescale com O Copyright 1987 1999 HIWARE HI WAVE 30 Noral BDM Target Component Commands Freescale Semiconductor Inc Example BANKWINDOW PPAGE 0x8000 0xBFFF OxFF This command allows to use the banked memory model in HI WAVE using the M68HC12DG128 This commands means the PPAGE register located at address OxFF must be used to build the PC address when the code is located in banked memory area from 0x800
35. vel The dialog below is displayed For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE 28 HOTPLUG Connection Freescale Semiconductor Inc HI WAVE e Please connect the Flex interface to the hardware BDM port then click OK Now you can connect the Flex BDM connector to your hardware BDM connec tor Once done click the Ok button The debugger turns to Running status automatically To found out where is cur rently the running program you need stop the debugger Then choosing Noral BDM Load menu you can load with Load Symbols only Load option the running program in the debugger as show below to display and trace the original Source code Load Executable File 2 x Look jn 832 z fes e a fibo_32 abs File name ftest abs Files of type Executables abs elf Cancel m Load Options C Load Code Symbols Load Symbols only C Load Code only Note Do NOT load the program Code otherwise the PC will be modified Load with Load Symbols only Load option For More Information www freescale com Copyright 1987 1999 HIWARE HI WAVE HC12 NORAL BDM Target Interface 29 Freescale Semiconductor Hne Noral BDM Target Component Commands The following commands can be used in any command file e g STARTUP CMD file or typed in the Command Line component The startup command file STAR TUP CMD is executed by HI WAVE straigh
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