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Hi, Let say if you have an FPGA connected to GPIF II interface of FX3 and you have configured FX3 to act as SlaveFIFO. Also, let say the buffer size that you are using in the firmware is 16KB. Now if FPGA has written 15KB of data to FX3 and if FPGA does not have any more data then it needs to assert PKTEND# signal so that the received data will be committed to USB. Thanks, sai krishna.
I meet the same question. Are you sure we only need to assert pkend# on last word, then it seems could not work correct on 1K size boundary. DO I need to send zlp# again to termoinal this transaction ?