AM5726: access to PRU_CONTROL

Rasty Slutsker

Expert 1530 points

Other Parts Discussed in Thread: AM5726

Tool/software:

Hi,

I try to make some POC with am5726 PRU.

In need to access PRU_CONTROL and PRU_CYCLE.

I do not find any hands on matherials for am5726.

Any example would help.

Thanks

Rasty

8 days ago

0 Josue Zamitiz-Ayala 8 days ago

TI__Mastermind 22379 points

Rasty,

The Training for PRU is here: https://software-dl.ti.com/processor-sdk-linux/esd/AM64X/08_06_00_42/exports/docs/common/PRU-ICSS/Overview.html#:~:text=PRU%2DICSS%3A%20The,AM57x%20and%20K2G.

There is some additional info available here:

https://www.ti.com/lit/an/sprace9a/sprace9a.pdf

In general, the hands-on labs are applicable to AM57x.

Best,

Josue

0 Rasty Slutsker 7 days ago in reply to Josue Zamitiz-Ayala

Expert 1530 points

Hi,

You send me information for am64x. I need am57xx .

What do I find examples for am57xx?

Thanks

Rasty

0 Josue Zamitiz-Ayala 7 days ago in reply to Rasty Slutsker

TI__Mastermind 22379 points

Rasty,

The examples are applicable for AM57.. as seen in the link I sent:

Josue Zamitiz-Ayala said:
The Training for PRU is here: https://software-dl.ti.com/processor-sdk-linux/esd/AM64X/08_06_00_42/exports/docs/common/PRU-ICSS/Overview.html#:~:text=PRU%2DICSS%3A%20The,AM57x%20and%20K2G.

and my statement:

Josue Zamitiz-Ayala said:
In general, the hands-on labs are applicable to AM57x

-the training is the same.

-Jsoue

0 Nick Saulnier 7 days ago in reply to Rasty Slutsker

TI__Guru* 89505 points

Hello Rasty,

The PRU subsection got removed from the latest AM57x SDK 9.3 documentation. I believe that is because the version of Linux in SDK 9.3 did not include the correct interrupt settings to enable the RPMsg example to load properly out-of-the-box. Josue can point you to the e2e thread where we provide the code patches to get that example running properly.

In the meantime, you can refer to the PRU subsection of the latest AM64x SDK docs. As you indicated, the PRU subsystem on AM57x is different from the PRU subsystem on AM64x. However, I wrote the documentation in a way that you are still able to use the same documentation if you are using AM57x.

Here's the top level overview, with important links:
https://software-dl.ti.com/processor-sdk-linux/esd/AM64X/10_00_07_04/exports/docs/common/PRU-ICSS/Overview.html

Here's the "Getting Started Labs". I would start there if I were you:
https://software-dl.ti.com/processor-sdk-linux/esd/AM64X/10_00_07_04/exports/docs/common/PRU-ICSS/PRU-Getting-Started-Labs.html

As I state in the "Supported Processors" section, those labs should apply to AM57x as well. If you run into any issues going through those labs, feel free to let us know.

Regards,

Nick

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AM5726: access to PRU_CONTROL