CCS/LAUNCHXL-CC1312R1: TI-RTOS System_printf() - need clear instructions on how to make this work.

Peter Hallenbeck

Tool/software: Code Composer Studio

I am working with the uartecho demo. I have it working. I wanted to get the System_printf(); working. I am in CCS Version 10.

I added the lines to the release.cfg as per the original answer:

var System = xdc.useModule('xdc.runtime.System');
var SysMin = xdc.useModule('xdc.runtime.SysMin'); // this and the next 2 lines commented out in original file. Used to allow System Printf PDH
SysMin.bufSize = 1024;
System.SupportProxy = SysMin;

In my main.tirtos.c I added this include:

#include <xdc/runtime/System.h>

and in main() I added:

System_printf("Up and running.\n");

But when I run the program, nothing is printed in the console window in CSS. I've looked at the simple link academy debug section. The core problem here is there is a lot of "Add this code here" in there, but nowhere is there clear instructions on how to get this functionality going.

So what I would please like to see is a list of steps, such as "Add this code to this file", that is needed to let me use System_printf and see the result in the console window.

- pete

over 5 years ago

0 Elin W over 5 years ago

TI__Genius 14845 points

Hi Peter,

Assigning an expert to comment.

Thanks,
Elin

0 IUsedToBeARealPerson (M-W) over 5 years ago in reply to Elin W

TI__Guru 58425 points

Hi Peter,

The steps you are taking should be sufficient, what I think is lacking in your case is a "flush".

As documented for SysMin (http://dev.ti.com/tirex/explore/node?node=ABCeS-j7lCHi4VDZqij7Kw__pTTHBmu__LATEST -> xdc -> rutnime -> SysMin), the System_flush() API needs to be called for the implementation to flush out the data put into the internal buffer. When this is called, it is either outputted using the default fwrite() ANSI library function (or HOSTwrite when when using TI C Runtime support library).

0 Peter Hallenbeck over 5 years ago in reply to IUsedToBeARealPerson (M-W)

Intellectual 560 points

OK on that suggestion. Don't recall seeing it in any of the examples I looked at, but, this will be easy to test. Rather that "just trying again", I'll dive keeping into the documentation. Was was reading about the SysMin last night, as if often the case with any RTOS you've got to go down a lot of rabbit holes before you can do something simple.

Thanks for the reaply, I'll call this closed and hope it works or I can ask a better, more specific question.

- pete

Sub-1 GHz

Sub-1 GHz forum

CCS/LAUNCHXL-CC1312R1: TI-RTOS System_printf() - need clear instructions on how to make this work.