AM57x DSP core programming via RemoteProc

Shaunak Shilimkan

Hi,

I am using the AM572x IDK and am trying to boot the DSP core (any one I am trying DSP1 for now) from the A15 core running linux (pre-built binaries shipped with the SDK)

1. I built the RTSC Led Blink project that is shipped with the TI PDK, for C66xx (DSP).

2. A .out file was generated which I renamed to .xe66 as per "https://e2e.ti.com/support/embedded/tirtos/f/355/p/443667/1597072 "

3.I then copied the file into /lib/firmware/ and re-linked the dra7-dsp1-fw.xe66 file to point to the xe66 file I just copied

For some reason I do not see the message that says that the core is power up, which I usually see when udev loads the default dra7-dsp1-fw.xe66.opencl example,

when I bind the dsp1 core manually using

# echo 40800000.dsp > unbind

# echo 40800000.dsp > bind

Questions:

1. Is there something that needs to be done in standard RTSC projects (Led Blink) to make this work?

2. Where can I build the firmware that is shipped with the SDK (opencl example) so that I could modify that

Thanks very much.

Regards,

Shaunak

over 9 years ago

0 Biser Gatchev-XID over 9 years ago

TI__Guru**** 393215 points

The software team have been notified. They will respond here.

0 Garrett Ding over 9 years ago in reply to Biser Gatchev-XID

TI__Mastermind 43296 points

Hi Shaunak,

1. Yes, you need to add DSP resource table in any standard RTSC projects so remoteProc driver in Linux can parse and load DSP image properly, please refer to ipc_3_43_0x_0y/examples/DRA7XX_linux_elf/ex02_messageq example.

2. Opencl examples are in ti-processor-sdk-linux-am57xx-evm-03.00.00.04/example-applications/opencl-examples-1.1.9.1, whereas the firmware Opencl-monitor is built by Arago - processors.wiki.ti.com/.../Processor_SDK_Building_The_SDK.

Regards,
Garrett

0 Shaunak Shilimkan over 9 years ago in reply to Garrett Ding

Intellectual 610 points

Hi Garrett,

Thank you for your response and I apologize for my late reply.

I had a another question though.

- Are there any examples in Linux that can be used to demonstrate message Q communication with the ex02_messageq_example firmware loaded on the DSP? from what I see there is an rpmsg example but I'm not sure if that can be used here.

- Also, the rpmsg example is a kernel module. Is there any user space code that can do this?

Thanks very much.

Regards,

Shaunak

0 Garrett Ding over 9 years ago in reply to Shaunak Shilimkan

TI__Mastermind 43296 points

Hi Shaunak,

ex02_messageq includes host application as well as IPU/DSP firmwares.

$.../examples/DRA7XX_linux_elf/ex02_messageq$ ls
dsp1 dsp2 host ipu1 ipu2 makefile products.mak readme.txt shared

Regards, Garrett

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AM57x DSP core programming via RemoteProc