printf - console output - ccs5.1 - F28M36

Hi Julian,

Yes, it is possible. The below wiki articles are a great primer for what you need to do and what you need to look out for when using printf:

http://processors.wiki.ti.com/index.php/Printf_support_in_compiler

http://processors.wiki.ti.com/index.php/Tips_for_using_printf

Thanks

ki

Ki-Soo Lee,

i

1) included stdio.h

2) for the project is set the heap option --heap_size=0x500

3) I added the sections for cio and sysmem

   .cio                : > FLASHE      PAGE = 0
   .sysmem             : > FLASHE      PAGE = 0

4) I still do not see the output.

Julian

Julian Dieterle said:

2) for the project is set the heap option --heap_size=0x500

did you also set a stack size greater than 0x400?

Julian Dieterle said:

4) I still do not see the output.

Note that you are working with a multicore environment. Make sure you have the proper context for debug and console. Also note that C I/O will use breakpoint resources and if you are debugging in flash, you will need to make sure you have the hardware breakpoints available for C I/O. On 28x, there are only two hardware breakpoints available.

Which CPU are you trying to debug? ARM or DSP?

Thanks

ki

Hi Ki-Soo Lee,

stack size is 0x500.

What do you mean with proper context for debug and console?

I do not understand why I need breakpoints for having printf and putting something to console.

I debug the DSP.

Julian

Julian Dieterle said:

What do you mean with proper context for debug and console?

Context is described here: http://processors.wiki.ti.com/index.php/Multi-Core_Debug_with_CCSv5#Debug_Context

Julian Dieterle said:

I do not understand why I need breakpoints for having printf and putting something to console.

It is described here: http://processors.wiki.ti.com/index.php/Tips_for_using_printf#Special_Breakpoints

Note the comment: 

Note: The downside of allowing the setting of CIO break-points is that when debugging from Flash, it will use one hardware break-point. You may need to move C I/O code to RAM to avoid this issue.

Thanks

ki

Hi Alexandar,

during my last visit last week, You got the output correctly...what has been changed?

would you share the steps for the community?

Thank you for participating in E2E forum.

regards

Ur local FAE

Karim