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647 Views
Registered: ‎11-02-2019

Ping OpenAMP echo_test

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Hi!

I booted the OpenAMP echo_test example on Zynq ZCU102. In this test the Linux on A53 sends packages to the FreeRTOS on R5 and this sends them back. I am not familiar with how OpenAMP is built and I wanted to know if it is possible to ping the FreeRTOS on R5 from the host.

Thank you!

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jovitac
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Registered: ‎05-10-2017

This is also not possible using OpenAMP. OpenAMP is only supported send messages between the ARM cores (A53 and R5 in case of ZynqMP) and between (A9-0 and A9-1 in case of Zynq).

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jovitac
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Registered: ‎05-10-2017

I'm not sure what you mean by ping FreeRTOS? Do you want to send messages from your host machine to the FreeRTOS firmware or from your Linux running on A53 to FreeRTOS firmware?

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557 Views
Registered: ‎11-02-2019

Hi @jovitac,

I want to send messages from my host machine to the FreeRTOS firmware. Is it possible?

Thank you

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jovitac
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Registered: ‎05-10-2017

You can't use the openamp framework to do this. You can possibly try doing this using usb by configuring your board to be in device mode and send messages from the host.

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Registered: ‎11-02-2019

Ok, thank you @jovitac, and is it possible to send messages from the host to the A53 core with openamp?

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jovitac
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Registered: ‎05-10-2017

This is also not possible using OpenAMP. OpenAMP is only supported send messages between the ARM cores (A53 and R5 in case of ZynqMP) and between (A9-0 and A9-1 in case of Zynq).

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-------------------------------------------------------------------------

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