Kevyn-Alexandre Paré wrote: > I at least need to send 2 bytes to the FPGA to receive back a NAK > in case of a bad 2 first bytes. In case of a proper trame this will > send a ACK or data packet.
You can simplify your protocol significantly since USB transfers, aside from isochronous, are a reliable transport. If a transfer is successful then the exact data you sent has arrived correctly. Error detection and retransmission is handled on a very low layer. Take advantage of this in your protocol to make it simpler. //Peter ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel