Cant see an output from printf,System_printf etc in BIOS on board

Yuri Cherkasov

Hey guys, i need some help. currently im working with ipnc rdk, and wondering is it possible to see the output from printf , System_printf and other similar functions in console on real board, not in CCS, cause i see nothing running syslink examples - just the output from host proc, even after setting SysStd as a System SupportProxy and increasing stack size in .cfg,still no effect. i mean, i know that there is a remote_debug_client tool, designed to print messages to console,using shared memory and vps_printf calls, but interested in the different ways to output.

over 11 years ago

0 Moses Isang over 11 years ago

TI__Expert 8175 points

Yuri,

SysStd underneath uses the write and flush calls from the run-time libraries. The runtime write from the TI codegen works with CCS to write to its console so that's probably why you're not seeing any output. SysCallback is another System support proxy by which you can implement your own putchar write functions, say a UART write, so System_printf will call your UART write for example. You can use this to write to your boards console.

More on SysCallback can be found here

http://rtsc.eclipse.org/cdoc-tip/xdc/runtime/SysCallback.html

Moses

0 Yuri Cherkasov over 11 years ago in reply to Moses Isang

Prodigy 85 points

First of all, thanks for your reply,Moses. I will check SysCallback module, but just for clarity i ll ask again: is it ok that i dont get any response in console on my board from standard printf from slave proc?

0 Moses Isang over 11 years ago in reply to Yuri Cherkasov

TI__Expert 8175 points

Yuri,

Yes, the target needs to be connected to CCS for the runtime write calls to work, so you shouldn't get any response.

Let me know if you have other questions

Moses

0 Yuri Cherkasov over 11 years ago in reply to Moses Isang

Prodigy 85 points

Thanks for your answer, Moses!cheers!

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Cant see an output from printf,System_printf etc in BIOS on board