RTOS/CC2640: CC2640 System_printf issue

Dilbert K

Expert 1210 points

Part Number: CC2640
Other Parts Discussed in Thread: CC2650, SYSBIOS

Tool/software: TI-RTOS

I try to use System_printf() to print message to Console on debugger.

Currently setup :

Using CC2650 Lauchpad XDS-110 connect to external CC2640 (no uart pins connected)
Using C:\ti\simplelink\ble_sdk_2_02_01_18\examples\cc2650lp\simple_peripheral\ccs\app
Using CCS V7

I following info from forum and doc. Had done following :

In CCS project : TOOLS --> appl_ble.cfg

var SysStd = xdc.useModule('xdc.runtime.SysStd');
var System = xdc.useModule('xdc.runtime.System');

System.SupportProxy = SysStd;

In c file

#include <xdc/runtime/System.h>

static void sensorDeviceTaskFxn(UArg a0, UArg a1)
{

System_printf("Device Task Init");

while(1)

{}

}

No message get print to Console in CCS debugger side.

My question always be, is all debug message still require UART pin connect between CC26xx and XDS ??

Thanks for your advice

over 8 years ago

0 Alan DeMars over 8 years ago

TI__Mastermind 30830 points

This should work if you are using the TI code generation tools.

If you are using the GCC tools, you need to enable "semi hosting" for the console I/O to work properly. This is done by adding this content to your .cfg file:

var SemiHost = xdc.useModule('ti.sysbios.rts.gnu.SemiHostSupport');

For more information regarding semi-hosting, read the following wiki:

processors.wiki.ti.com/.../TI-RTOS_Examples_SemiHosting

Alan

0 Dilbert K over 8 years ago in reply to Alan DeMars

Expert 1210 points

I am using TI Code Composer V7. Any setup on tools side I need to enable this ?

0 Alan DeMars over 8 years ago in reply to Dilbert K

TI__Mastermind 30830 points

I added the simple_peripheral project to my CCS projects, then added your changes to the appl_ble.cfg file, as well as a System_printf("Hello\n") statement at the beginning of main(). "Hello" was printed in the Console window as expected when I ran the application. Are you sure the processor is arriving at the "sensorDeviceTaskFxn" function?

0 Dilbert K over 8 years ago in reply to Alan DeMars

Expert 1210 points

Yes, I am. I have breakpoint stop in there.

Any project build options (#ifdef) I need to #undef ?

0 Alan DeMars over 8 years ago in reply to Dilbert K

TI__Mastermind 30830 points

No. Is there any chance you've "pinned" the CCS console window to the build window? If so, you'll have to manually select the CIO window from the menu bar within the console window:

0 Dilbert K over 8 years ago in reply to Alan DeMars

Expert 1210 points

Thanks so much. It works now.
I forgot to put CR (\n) on the print.... I am thinking at least it should still print, but not.

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RTOS/CC2640: CC2640 System_printf issue