Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

PCIE IP Core question

I'm a new one in PCIE exploration,I have came up against some problems when reading the pcie compiler user guide handbook.If i use the pcie IP core and DMA controller IP core together in my design ba...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

--- Quote Start ---

No, when the DMA transmit a read request via the PCIEx Tx Slave, the data will be received via PCIEx Tx Slave. You don't have to receive and interpret the read completion. The core do this automatically and deliver the data request on avalon slave interface.

The read, readdata signals are connected internally on the SOPC System with the signals of the DMA Read Master of DMA Controller.

--- Quote End ---

Thanks a lot for your reply,which helps me very much! If your reply is correct, the discriptions in page 4-26 to 4-28 of the PCI Express Compiler User Guide version8.0 may be incorrect,at least not integrated.