FileIO using TMS320C5510 Bios platform C5510 Simulator

Angel40631

Hi, I'm kind of new to this page and to CCS. I've got a File IO project that I'm working on using CCS v3.3.82.13 and DSP/BIOS v5.41.01.09. I'm trying to read data(integers) from a file, write it to memory, process it and then write the processed data to an output file however, everytime I run the program the program counter seems to get stuck at some point at address 0x610901. If I take out the fprintf() and fscanf() from the program it runs fine. I've tried declaring a local buffer like sepecified on this web site that I found on this forum http://tiexpressdsp.com/index.php/Tips_for_using_printf

My code:

char cioBuf[200];

setvbuf(inputFile, cio, _IOFBF, sizeof cio);

but no luck, I've also tried specifying the.cio section to DARAM in my .tcf file.

bios.MEM.CIOSEG = prog.get("DARAM");

but the problem persist. I would appreciate any help from anyone on this matter.

Thanks,

Angel

over 16 years ago

0 George Mock over 16 years ago

TI__Guru**** 253270 points

Is #include <stdio.h> visible everywhere fprintf and fscanf are called?

-George

0 Angel40631 over 16 years ago in reply to George Mock

Prodigy 40 points

Thanks for the help,

yes, stdio.h is defined globally to the whole project.

Angel

0 George Mock over 16 years ago in reply to Angel40631

TI__Guru**** 253270 points

Hmm. Well, carefully comb through all the sections in that WIki article, particularly this part http://tiexpressdsp.com/index.php/Tips_for_using_printf#How_to_use_printf_in_a_project . One additional thing to check, make sure you are not overflowing the stack. The printf routines take a lot of stack space.

Hope this helps ...

-George

0 Angel40631 over 16 years ago in reply to George Mock

Prodigy 40 points

I've doubled checked the steps described in the article and I did everything it says but the problem persist. However, the overflowing of the stack might be my problem. How do you suggest I check this? and is there a way to fix it?

Angel

0 George Mock over 16 years ago in reply to Angel40631

TI__Guru**** 253270 points

The easiest thing to do is increase the amount of stack allocated with the linker -stack option. If that fixes it, then you found your problem. I presume that, since you are executing on a simulator, you will have no problem allocating a large stack to memory.

Thanks and regards,

-George

0 Angel40631 over 16 years ago in reply to George Mock

Prodigy 40 points

I tried setting the linker stack to 16K (16384) and hex 0x10000, but no luck. Do you have any more ideas?

Thanks,

Angel

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FileIO using TMS320C5510 Bios platform C5510 Simulator