CC1352R: Output problem when using Segger JLink Ultra+.

Robert Galon

Intellectual 435 points

Part Number: CC1352R
Other Parts Discussed in Thread: SEGGER

Hi!

My environment:

Launchpad CC1352R1
CCS: 10.3.1
SDK: 5.10.00.48
Project: hello_CC1352R1_LAUNCHXL_tirtos_gcc

Problem:

I have simple setup: fresh hello_CC1352R1_LAUNCHXL_tirtos_gcc project downloaded from Resource Explorer, with simple four functions:

printf("printf\n");
fprintf(stderr, "fprintf\n");
System_printf("System_printf\n");
assert(false);

With XDS110 debugger everything working as expected.

Problem is with Segger JLink Ultra+, on this debugger only working function is System_printf, on each of the others my device immediately goes to do_AngelSWI and I have to restart board.

What can I do to make printf working with segger? Is anything that I missing in my setup?

over 2 years ago

0 Siri over 2 years ago

TI__Guru* 79271 points

I am not sure why this works with XDS110 and no Segger, but you should use System_prinf as this is what is used in the example, and what we support. Please see the following for more details:

https://dev.ti.com/tirex/explore/content/simplelink_academy_cc13x2_26x2sdk_5_10_00_00/modules/debug/debugging_output/debugging_output.html#introduction

Siri

0 Robert Galon over 2 years ago in reply to Siri

Intellectual 435 points

Thank you for your suggestions, that helped rewrite my question:

I want to use asserts in my program. When I'm using XDS everything working fine and I get assert output in CCS Console:

assertion "false" failed: file "../hello.cpp", line 15, function: int main()

but when I'm using Segger assert is working (program stopped) but I don't have any output. How can I enable assert output when using Segger? I'm using cJTAG interface, maybe it changes something?

testing code:

Board_init();

assert(false);
	
BIOS_exit(0);
return(0);

0 Siri over 2 years ago in reply to Robert Galon

TI__Guru* 79271 points

Hi Robert

Not an expert on this at all, but in this guide the following is stated:

https://software-dl.ti.com/simplelink/esd/simplelink_cc13x2_26x2_sdk/3.40.00.02/exports/docs/ble5stack/ble_user_guide/html/ble-stack-5.x-guide/debugging-index.html

"The CC13x2 and CC26x2 platform supports both the cJTAG and JTAG debug interfaces. Debug probes that support cJTAG, like the TI XDS110 and XDS100v3, can work natively with the CC13x2 or CC26x2. Other debug probes that only support JTAG, like the IAR I-Jet and Segger J-Link, need to inject a cJTAG sequence to enable JTAG functionality."

Siri

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CC1352R: Output problem when using Segger JLink Ultra+.