AM5708: PRU UART

user4205571

Expert 1390 points

Part Number: AM5708

Hi:

How does the AM5708 use pr1_uart, has it been verified that pr1_uart is available?

over 6 years ago

0 Biser Gatchev-XID over 6 years ago

TI__Guru**** 393215 points

Hi,

Please read section 30.7 of the AM570x TRM Rev. H. Yes, pr1_uart0 is available and pinned out on AM570x devices. It can be used by all AM570x cores.

0 user4205571 over 6 years ago

Expert 1390 points

Hi:

Is there a case program for using pr1_uart on AM5708?

0 Nick Saulnier over 6 years ago in reply to user4205571

TI__Guru** 100660 points

There is a template program in the PRU Software Support Package called PRU_Hardware_UART that was written for AM335x. You can find it in your Linux Processor SDK at example-programs/pru-icss.../examples/am335x/PRU_Hardware_UART. You should be able to adapt the example for AM5708. If you want to test it on an AM335x first, the BeagleBone Black is a useful board to have.

Please see the post UART Pins don't work with PRU. It has more information about using internal loopback in the example as opposed to sending signals out to the output pins, and other details that might be helpful.

Regards,

Nick

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AM5708: PRU UART