General • Re: ETM instruction tracing for RP2350

I am usually doing a mess when testing, sometimes hard to find, or hard to remember what I've tried, many things done live from debugger.

Yep, the most important is to select the functions for GPIO pins (1-5):
gpio_set_function (1, GPIO_FUNC_CORESIGHT_TRACE);

Then strictly for TPIU output:
*tpiu_cspsr = 0x08; # <<4 bit interface>> CORESIGHT_TPIU_BASE + 0x0004
*tpiu_ffcr = 0x00; # CORESIGHT_TPIU_BASE + 0x0304
*tpiu_fscr = 0x00; # CORESIGHT_TPIU_BASE + 0x0308

Though with Segger J-Trace Pro, it should be that the Ozone debugger do all the setup (similarly how czietz did).

Statistics: Posted by gmx — Fri Apr 25, 2025 8:32 pm

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