PRU pins on BBAI

[Mark A. Yoder]

I see that the SRM[1] ([2] is easier to read) for the BBAI shows that some PRU pins appear at 2 of the P8/P9 header pins.

Is this really so?

--Mark

[1] https://github.com/beagleboard/beaglebone-ai/wiki/System-Reference-Manual#pru-icss2-pin-access

[2] https://docs.google.com/spreadsheets/d/1dFSBVem86vAUD7MLXvqdS-N0Efi8_g_O1iTqzql8DAo/edit#gid=0

[Jason Kridner]

Can you highlight which ones? I didn't think this was the case. Ultimately, I'll just track it down with the schematics and pinmux tool.

If you could add comments on https://docs.google.com/spreadsheets/d/1fE-AsDZvJ-bBwzNBj1_sPDrutvEvsmARqFwvbw_HkrE/edit?usp=sharing, that would be the most direct for me.

A quick glance at the table in the SRM and then a quick glance at dev.ti.com/sysconfig for pr2_pru0_gpi2 seems to indicate there are 2 balls where it can come out (AD4 and F9):

So, yes, it is likely to be correct.

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[Mark A. Yoder]

It's not a problem.  I'm just surprised to see several on the ICSS2 PRU0 pins are attached to the header in two places.

--Mark