CCS/DRV8302-HC-C2-KIT: DRV8302-HC-C2-KIT doesn't run - halts at location 0x3ff599

Hi Dale, are you running this using the RAM or FLASH build configuration? Also, are you able to get any other ControlSuite examples to work on your controlCARD?

Sean

Hi Sean

This was built with a RAM configuration
I recently tested the BLDC project, and I was able to both build and run.

Thank you

Dale

Which linker command file do you have active? And when you look in the .map file that is generated during compilation, which section does 0x3FF559 fall in?

Sean

Hi Sean

Address 0x3ff559 is in the BOOTROM section.
The active linker file is "F28035_RAM_PM_Sensorless.CMD
For reference, I copied the Page 0 information from the .map file:

PAGE 0:
BEGIN 00000000 00000002 00000000 00000002 RWIX
BOOT_RSVD 00000002 0000004e 00000000 0000004e RWIX
RAMM0 00000050 000003b0 00000235 0000017b RWIX
progRAM 00008000 00001800 000010e6 0000071a RWIX
IQTABLES 003fe000 00000b50 00000b50 00000000 RWIX
IQTABLES2 003feb50 0000008c 00000000 0000008c RWIX
IQTABLES3 003febdc 000000aa 00000000 000000aa RWIX
BOOTROM 003ff27c 00000d44 00000000 00000d44 RWIX
RESET 003fffc0 00000002 00000000 00000002 RWIX

Hi Sean

Additional information.

I am getting the following error message when I load code into the 28035:

C28xx: Trouble Removing Breakpoint with the Action "Finish Auto Run" at 0x8000: (Error -1066 @ 0x8000) Unable to set/clear requested breakpoint. Verify that the breakpoint address is in valid memory. (Emulation package 6.0.504.1)

Also, I noticed LED3 on the F28035 control card is flashing.

Thank you

Dale

Is operation suspended when you are running with the debugger and CCS connected? If so, please load the boot ROM symbols and see where the code is halted.

It appears that your device is resetting and then going to boot ROM.

sal

Hi Sal

Yes - operation is suspended with CCS connected.

I tried running again. I used RUN->LOAD->LOAD SYMBOLS from the menu.

Is there anotehr way I can load the boot rom symbols?

A code window pops up, but it has the message "No source available for 0x3ff599

If I "restart" a window pops up for boot28.asm; the instruction it appears to reach is "MOV      SP,#__stack"

However, this instruction does not seem to match what is at location 0x3ff599. (the disassembly window shows 'ESTOP0' at 0x3ff599)

Thank you

Dale

Some more observations:

After further investigation, I made several observations that seem to imply the code is being corrupted.

1. Some variables that should be TRUE/FALSE, i.e. 0 or 1, have larger values, ex. EnableFlag = 35744
2. More important: Alpha_State_Ptr = 0x02718E66; I am sure this should be 0x008XXX to point to the code segment of memory.
3. Code starts execution immediately open loading, and proceeds to halt at Ox3ff599.

Contrast this with the results of loading the BLDC code from the same package:

1. Variables have correct values, such as 1 for EnableFlag.
2. Execution does not start when loaded. I need to click the 'START/RESUME' icon

I suspect that there is a compiler or CCS setting in this project that is incorrect, but I haven't been able to see anything when reviewing the settings.I am using CCS7, Compiler version is TI v16.9.1.LTS.

just to be clear, this is NOT my code - it is the code that I downloaded form TI to run the DRV8302 evaluation kit. The BLDC code in the package seems to work fine; the Sensorless PM code causes the issue. Unfortunately, my application is a PM motor.

Thank you

Dale

Hey Dale, sorry for the lull in response here. Have you been able to work out the issues you're experiencing on your end?

Sean

Thanks for the update Dale.

Sean