TMS570LS3137: TMS570 with Trace32

Magdy Mag

Part Number: TMS570LS3137

Tool/software:

Hello everyone,

I'm currently debugging a TMS570 microcontroller using Trace32. I've set up all the necessary scripts, and the debugging process itself seems to be working fine. However, I'm encountering an issue where I can set breakpoints, watch variables, and modify them during debugging, but I'm not seeing any hardware output on the pins when I monitor them with an oscilloscope.

Interestingly, when I reset the power (disconnect Trace32 from the TMS570), the same firmware runs as expected, and I can observe the signal outputs on the pins.

I'd appreciate any insights or suggestions on what might be causing this issue and how to resolve it.

Thank you

over 1 year ago

0 jagadish gundavarapu over 1 year ago

TI__Guru 69811 points

Hi Magdy Mag,

If you are not seeing hardware output on the pins means i am suspecting that initializations were not happening properly.

May be this systemInit function not calling during debug.

To understand this, can please set a breakpoint at beginning of the _c_int00 function and verify whether this systemInit function calling or not in the debug mode?

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Thanks & regards,
Jagadish.

0 Magdy Mag over 1 year ago in reply to jagadish gundavarapu

Prodigy 30 points

Hi Jagadish

Thank you for your reply, But initialization is done correctly as i can the see signal at output pins (with same firmware) only when i disconnect the TMS from Trace32

i tried to run the debugger with and without any breaking points, and i can see watch variables and it changes its value correctly.

0 jagadish gundavarapu over 1 year ago in reply to Magdy Mag

TI__Guru 69811 points

Hi Magdy Mag,

Magdy Mag said:
Thank you for your reply, But initialization is done correctly as i can the see signal at output pins (with same firmware) only when i disconnect the TMS from Trace32

I don't know exact root cause for this.

Can you please refer below thread once, in the above thread a link is given for pin connectivity. So please check it once.

(+) LAUNCHXL2-TMS57012: LAUNCHXL2-TMS57012: TMS570 (LAUNCHXL2-TMS57012) Trace32 connection not working - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

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Thanks & Regards,
Jagadish.