J721EXCPXEVM: The PCIe slot only has one active lane

Xujie Zhao

Part Number: J721EXCPXEVM

During my PCIe connection testing, I found that only the PCIe X1 lane is active, while the X2 lane fails to recognize the device. How should I troubleshoot this issue?

2 个月前

0 Alice 2 个月前

TI__Genius 17270 points

您好，

error -110是超时报错。

X2 Lane PCIe Interface 使用的是SERDES1，请根据用户手册“4.11.2 X2 Lane PCIe Interface” 确认硬件连接。

Jacinto7 DRA829/TDA4VM Evaluation Module (EVM) Users Guide (Rev. E)

根据这个FAQ检查一下时钟

[FAQ] TDA4VM: TDA4VM/DRA829V: routing PCIE reference clock externally - Processors forum - Processors - TI E2E support forums

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J721EXCPXEVM: The PCIe slot only has one active lane