topic Re: [imx8qm] pcie controller work with pcie switch chip(PEX8734) in i.MX Processors

[imx8qm] pcie controller work with pcie switch chip(PEX8734)

hihanna — Mon, 04 Sep 2023 01:15:56 GMT

Hello

Currently, I have installed the PEX8734 of PLX on the imx8qm custom board,

and I want to set this chip to "Analog loopback slave mode" and test it to send data from cpu to loopback to receive data.

Is there any relevant code or document for this?

Please give me some advice or help.

Zhiming_Liu — Tue, 05 Sep 2023 00:16:35 GMT

If you want to set the behavior of this chip(PEX8734), you should refer the PEX8734 datasheet.

Write some bit in register refering that datasheet.

Best Regards

Zhiming

hihanna — Tue, 05 Sep 2023 02:07:24 GMT

Thank you for reply

I think you misunderstood because my English is not good.

The configuration of pex8734 has already been completed.

Exactly what I want to know is the connection method between host bridge and pex8734.