PROCESSOR-SDK-AM64X: PRU_IO ADC ADS85x8 EXAMPLE IN MCU+ SDK 10.01.00.32

Peng Y LAK

Part Number: PROCESSOR-SDK-AM64X
Other Parts Discussed in Thread: AM6442, TMDS64EVM, SYSCONFIG

Tool/software:

Hi TI Team,

I am working on running the pru_io example from MCU+ SDK 10.01.00.32 on AM6442 using remoteproc from Linux.

Following the guidance provided in this E2E thread, I have successfully run the gpio_led_blink example using remoteproc.

Now, I am trying to run the pru_io ADC example with ADS85x8 on my TMDS64EVM. The firmware loads and starts via remoteproc, but the program hangs at System_init().

Are there any specific SysConfig configurations that need to be modified for pru_io to run under remoteproc?
Do I need to modify the Linux device tree to disable any ICSSG0, PRU, or ADC-related resources that could be conflicting with the firmware?
Could System_init() be hanging due to uninitialized clocks, pinmux, or peripheral resource conflicts with Linux?

Notes:

The example was built for r5fss0-0 core.
The firmware boots but halts at early init.

Any suggestions or recommended steps to run this example successfully via remoteproc would be appreciated.

Thank you for your support.

Best regards,

Lak

3 months ago

0 Swargam Anil 3 months ago

TI__Mastermind 46626 points

Hello Lak,

I will get back to you in one or two days .

Regards,

Anil.

0 Peng Y LAK 2 months ago in reply to Swargam Anil

Prodigy 10 points

Hello Anil,

Just following up on this — I wanted to check if there’s any update.

Thanks!

0 Swargam Anil 2 months ago in reply to Peng Y LAK

TI__Mastermind 46626 points

Hello Lak,

Can you please confirm who is the customer is and how much is important ?

Right now, I am in other escalations. If customer is ok to wait another few days, I can work later.

Please share details in the mail if you would not like to disclose in e2e

Regards,

Anil.

0 Peng Y LAK 2 months ago in reply to Swargam Anil

Prodigy 10 points

Hello Anil,

Thank you for your response.

I am currently a research student at Myongji University, South Korea, and still gaining experience in this field. This work is part of my research project, where the goal is to transfer ADC data to the A53 (Linux) core at a sampling rate of at least 20 kHz. I also plan to implement the communication stack on the Linux side.

We have a few more weeks to complete this task, and I would greatly appreciate your continued guidance and support.

I look forward to your response.

Best regards,
Lak

0 Swargam Anil 2 months ago in reply to Peng Y LAK

TI__Mastermind 46626 points

Hello Lak,

Thanks for the above details.

I have routed your query to Linux experts and I feel that I can't help here.

Regards,

Anil.

0 Nick Saulnier 2 months ago in reply to Swargam Anil

TI__Guru** 101250 points

Hello Lak,

Most likely, you have a resource conflict between Linux and the R5F.

Concepts around peripheral allocation

Please refer to the AM64x academy:
Multicore > Peripherals > How to allocate peripherals
https://dev.ti.com/tirex/explore/node?node=A__AXB3tgxI9IZSow2DUkUlvw__AM64-ACADEMY__WI1KRXP__LATEST

Concepts around getting an RTOS project running alongside Linux

Since you found that previous thread, you should already have at least looked at this section:

AM64x academy > Multicore > Application Development on Remote Cores
https://dev.ti.com/tirex/explore/node?node=A__AfSHr0vWbFdGCnmoPeMXzg__AM64-ACADEMY__WI1KRXP__LATEST

Specifically, I would suggest taking a look at the section "Debug the remote core alongside Linux"
https://dev.ti.com/tirex/explore/node?node=A__AU9Punu4yTQu9hRP62aoug__AM64-ACADEMY__WI1KRXP__LATEST

In the CCS page, I walk you through the exact steps that I followed in order to debug a resource conflict in the System_init call.

Regards,

Nick

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PROCESSOR-SDK-AM64X: PRU_IO ADC ADS85x8 EXAMPLE IN MCU+ SDK 10.01.00.32

Notes: