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Original question:

TDA4VM: Question of PCIExpress

TDA4VM: Is it possible to use DMA on both RC and EP in PCIe communication

Karunakar Vaddadi
Intellectual 320 points
Part Number: TDA4VM

Dear TI,

In our custom board we have two TDA4VMs . 

At present we are using DMA operations in the End Point side. (To write to RC and to read from RC).

Is it possible to use DMAs in both the sides like,

Whenever RC wants to write to EP it uses the DMA on RC side.

Whenever EP wants to write to RC, it uses the DMA on EP side.

In the image blue color is SOC-A (one TDA4VM) and Orange is SOC-B(second TDA4VM).

May be the image doesnot describe all of the things, but the Idea is to use DMA on RC side also.

Is this possible?

Thanks and Regards,

Karunakar

Thanks and Regards,

Karunakar