i.MX8M connection to FPGA KB article

[vdoser]

Hello,

I'm following this KB article to setup iMX8M EVK connection to FPGA over FlexSPI https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/Expend-i-MX8M-93-Capability-to-Connect-F... , which does not provide a test app source code. I'm wondering if someone could hint with the test app implementation?

I'm a newbie to iMX Linux...

Thank you in advance,

Serguei

[vdoser]

Thank you for replying, but the download link contains only a binary file for the test app, not its source code. At least that's what i get on my side...

[vdoser]

Hello @Chavira, I was wondering if any hints can be provided by NXP on how the  flexspi_fpga_test app source code looks like, to implement something similar on our side?

Thank you,

Serguei

[Chavira]

Hi @vdoser !

The .dtb inside of the folder "flexspi_fpga_test" is the device tree compiled for the test.

You have to compile the kernel including the driver ("flexspi_fpga_driver") and then flash the kernel on your board to test the example.

You can find instructions on how to compile by following the link:

 https://www.nxp.com/design/software/embedded-software/i-mx-software/embedded-linux-for-i-mx-applicat...

The source code is available on our GitHub:

https://github.com/nxp-imx/

Best Regards!

Chavira

[vdoser]

sorry, not sure how to follow this instruction in the Test1 or Test2:
"Read/write FPGA/CPLD test
.$/flexspi_fpga_test -p 0x08000000 -s 768"

I think this step runs an app called flexspi_fpga_test ? If so, where can i get its source?

[Chavira]

Hi @vdoser!
Thank you for contacting NXP Support!

You can download all the files of this article at the bottom of the page (see attached image)

If you have questions about the compilation of the kernel I recommend reading our Linux Documentation:

https://www.nxp.com/design/software/embedded-software/i-mx-software/embedded-linux-for-i-mx-applicat...

Best Regards!

Chavira