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DM8168 PCIESS 如何产生Memory Read/Write request 类型的的TLP？

sichang fu
Intellectual 300 points


       你好，我们现在的方案是 DM8168作为RC，virtex 5 FPGA作为EP，FPGA采集的视频信息通过PCIE发送给DM1868，FPGA 的EP Core是一个target-only设备，不能主动发送TLP，请问DM8168的PCIESS 如何发起Memory Read/Write request 类型的的TLP包？