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Pcie dma data reception facilities drivers
Doing the real-time data transmission, in xilinx driven to make a change, in the interrupt register write 1, of the removal of the lower machine terminal, want to accomplish is received under a machine interruption, PC a read request, drive change, can clear the interrupt, but PC, read request received request signal under a machine, PC has been parked in readfile here, documents received, the key is the file received, driver doesn't change, PC receives the dam can be data, consult bosses to solve the problem