Memory Map Error c6416

Sundas Nayab1

Other Parts Discussed in Thread: TMS320C6416

In CCS v5.5 using tms320c6416 functional simulator ,I made a project which generated sine wave,computed fft and angle and viewed the results on graphs. I modified the code to compute magnitude, max frequency index. Biuld and debug was successful but when I load the program it gives following error: " Memory Map Error: WRITE access by CPU to address 0xfffd2bc0, which is RESERVED in Hardware. ". I couldnt figure out the solution for it. Kindly help me on it because before this modification every thing was fine

over 11 years ago

0 Ki over 11 years ago

TI__Guru**** 466071 points

Hello,

It sounds like you built your project without a linker command file and assumed all memory range as available. A device simulator will try to simulate some hw peripherals and most likely some of the generated code is using memory that is reserved by these peripherals and the simulator memory map is blocking access to this memory range. If you just need an instruction set simulator, try using the 64xx cpu simulator. Otherwise you will need to create your code with a valid linker command file.

What is a linker command file? See: http://processors.wiki.ti.com/index.php/Linker_Command_File_Primer

Where can I get some sample ones? See: http://processors.wiki.ti.com/index.php/Linker_CMD_Files_for_CCS#C6000

Thanks

0 Sundas Nayab1 over 11 years ago in reply to Ki

Intellectual 300 points

Thanks for your reply but I was using linker command file C6416.cmd avaliable at the link you specified.

0 Ki over 11 years ago in reply to Sundas Nayab1

TI__Guru**** 466071 points

DId you try using the CPU simulator?

0 Sundas Nayab1 over 11 years ago in reply to Ki

Intellectual 300 points

Yes I have used but which linker command file should I use because C6416.cmd has emif defined in its memory map. CPU simulator does not simulate peripherals.

0 Ki over 11 years ago in reply to Sundas Nayab1

TI__Guru**** 466071 points

Can you provide your project and .out file?

0 Sundas Nayab1 over 11 years ago in reply to Ki

Intellectual 300 points

Hi Ki,

Please find the required in attachment1805.project.zip

0 Ki over 10 years ago in reply to Sundas Nayab1

TI__Guru**** 466071 points

I'm missing some header files to build the project (fft.h). Can you provide that and any other dependent header files?

Thanks

0 Sundas Nayab1 over 10 years ago in reply to Ki

Intellectual 300 points

Hello Ki, I have attached the header file fft.h. Thanks0363.fft.h

0 Ki over 10 years ago in reply to Sundas Nayab1

TI__Guru**** 466071 points

Thanks Sundas. I was able to reproduce and a colleague of mine found the source of the issue. You have a lot of local variables getting allocated with huge amounts of data and the amount you have allocated for your stack is way too small. Either make those variables global or drastically increase the stack size allocation in the project properties:

0 Sundas Nayab1 over 10 years ago in reply to Ki

Intellectual 300 points

Thanks Ki, yes I was also suspecting stack overflow as possible error.

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Memory Map Error c6416