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Accessing Embedded Trace Buffer on PI?

Posted: Mon Feb 10, 2020 6:14 pm
by apkuruvi
Hello all,
I wanted to know if there is anyway I can access the embedded trace buffer (ETB) on the raspberry Pi 3 Model B. Is there built in software available to do this? I was looking at some tools to access the ETB. I know for TI boards, they have an XDS560 Trace System. Is there something similar to this for the pi?

Thanks!

Re: Accessing Embedded Trace Buffer on PI?

Posted: Fri Feb 14, 2020 2:16 pm
by PhilE
You can enable ARM JTAG pins on the header for hardware debugging, but I don't think Pi 3 (BCM2710) has an ETM block (I've not seen it mentioned, and never tried it). Pi 4 (BCM2711) does claim to have an ARM debug core, but I don't know if anyone has tried to use it.