SK-AM64: SK-AM64: Debugging CA53/CM4

42Bastian

Expert 1420 points

Part Number: SK-AM64

is is also possible to debug the CA53 and CM4 via JTAG on this board or is there an (electrical) limitation?

Cheers

42Bastian

over 2 years ago

0 Dominic Rath over 2 years ago

Genius 5735 points

I've debugged the A53 cores on the AM64x (an EVM though) running U-Boot/Linux using XDS110/XDS200 with CCS. The M4 is visible at least, and I have no reason to believe that it is not debuggable.

By default only the first R5f is running - that's the core used to boot the rest of the system. That core needs to talk to the DMSC where the SYSFW runs to power up the other cores before you're able to debug them.

Is there any actual problem you've run into?

Please note that I'm not TI, so you might want to wait for answer from a TI employee.

Regards,

Dominic

0 Michael Erdahl over 2 years ago in reply to Dominic Rath

TI__Genius 13455 points

Thank you for your help Dominic!

You are correct, the CM4 can be accessed through JTAG (A53, R5F, M4F and PRU cores all accessible).

Take a look at the MCU Plus SDK documentation if you are trying to get started: https://software-dl.ti.com/mcu-plus-sdk/esd/AM64X/08_00_00_21/exports/docs/api_guide_am64x/index.html

Regards,
Mike

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SK-AM64: SK-AM64: Debugging CA53/CM4