AM261-SOM-EVM: AM261x Profinet_device_demo not debuggable in CCS

Parag Vora

Part Number: AM261-SOM-EVM
Other Parts Discussed in Thread: UNIFLASH

Hello TI Team,

I’m working with the setup below and I’m unable to debug the Profinet example in CCS, even though the same application runs fine when flashed with UniFlash.

Hardware: AM261x-LP (with onboard Ethernet PHY)
CCS: 20.4
Industrial SDK:ind_comms_sdk_am261x_2025_00_00_08
Example:profinet_device_demo

Issue description

When I start a debug session in CCS on profinet_device_demo, the CPU writes to address 0x0010_0000 and then the target keeps running without halting/breaking as expected. Because of this, I cannot step through code or hit breakpoints and effectively cannot debug the Profinet example.

However, if I flash the same code using TI UniFlash, the application runs correctly on the AM261x-LP board.

I’ve attached a screenshot for reference (shows the write at 0x0010_0000).

Best Regards,

Parag Vora

3 months ago

0 Nilabh Anand 3 months ago

TI__Guru 59610 points

Hi Parag,

The Profinet example is an XIP example, i.e. It needs the example to be flashed in the external flash, so It is not possible to debug it the way you are trying to do.

0 Parag Vora 3 months ago in reply to Nilabh Anand

Prodigy 85 points

Hii Nilabh,

Thank you for your reply. can you guide me to debug this example?

0 Nilabh Anand 3 months ago in reply to Nilabh Anand

TI__Guru 59610 points

Parag Vora said:
When I start a debug session in CCS on profinet_device_demo, the CPU writes to address 0x0010_0000 a

This is expected as the CCS is able to identify that the section of the program is supposed to be loaded in flash at offset 0x10000.

If you still want to debug it, you will need to put a while(val) loop (val =1) at the beginning of the main function, so after flashing is complete, the program will start execution but due to while loop it will not go ahead, then pause the core, use variable window to set value of Val to 0 , then the while loop will break.

But do note that SW breakpoints do not work on XIP program, you will need to use a hardware breakpoint

Arm-based microcontrollers

Arm-based microcontrollers forum

AM261-SOM-EVM: AM261x Profinet_device_demo not debuggable in CCS

Issue description