AM4376: PRU run standalone

Arun Cherian

Part Number: AM4376

Hello,

Can the PRU run without any support/interaction from the A9? Is is possible to u-boot a board and load the PRU from it with the PRU firmware and not involve the A9 at all?

Thanks,

Arun

over 4 years ago

0 Bin Liu over 4 years ago

TI__Guru**** 168261 points

Hi Arun,

AM4376 U-Boot runs on A9.

U-Boot doesn't support loading PRU firmware directly.

0 Arun Cherian over 4 years ago in reply to Bin Liu

Intellectual 510 points

Thanks Bin Liu,

So there is no way for loading and running code on the PRU without any involvement from the A9?

Thanks,
Arun

0 Bin Liu over 4 years ago in reply to Arun Cherian

TI__Guru**** 168261 points

Hi Arun,

Not that I am aware of.

The ROM runs on A9 which transitions the execution to the second bootloader which also runs on A9. So how could you start the PRU without A9 involvement.

0 Arun Cherian over 4 years ago in reply to Bin Liu

Intellectual 510 points

Thanks for your comments Bin Liu.

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AM4376: PRU run standalone