Hi all,

I'm trying to realize this design found on TRM, to source a packet from firmware with autoin and isochronous transfer (in order to create an header).  Unfortunately only a small part of the firmware-created packets are sent.

Have you got some clue to get this design working?

while( !( EP68FIFOFLGS & 0x20 ) )
{ // EP8EF=0, when buffer not empty
; // wait ‘til host takes entire FIFO data
}
FIFORESET = 0x80; // initiate the “source packet” sequence
SYNCDELAY;
FIFORESET = 0x06;
SYNCDELAY;
FIFORESET = 0x00;
EP8FIFOBUF[ 0 ] = 0x02; // <STX>, packet start of text msg
EP8FIFOBUF[ 1 ] = 0x06; // <ACK>
EP8FIFOBUF[ 2 ] = 0x07; // <HEARTBEAT>
EP8FIFOBUF[ 3 ] = 0x03; // <ETX>, packet end of text msg
SYNCDELAY;
EP8BCH = 0x00;
SYNCDELAY;
EP8BCL = 0x04; // pass newly-sourced buffer on to host


Thanks in advance.