yanhc

摘要：以前看过一段时间Cyclone FPGA控制PEX8111的程序，没看懂，最近又结合PCI规范重新看了一下。PCI Speci rev2.3FRAME# is driven by the master to indicate the beginning and end of atransaction.IRDY# is driven by the master to indicate that it is ready to transfer data.TRDY# is driven by the target to indicate that it is ready to transfer da 阅读全文