// Since we'll be mapping the various buffers into the access bank, we'll
// create definitions for the key registers and bits of the overlayed mapping,
// so it doesn't look like the wrong registers are being used.

#define MAPPED_CONbits RXB0CONbits
#define MAPPED_CON RXB0CON
#define MAPPED_SIDH RXB0SIDH
#ifdef ECAN_IS_CAN_MODULE
#define MAPPED_TXREQ RXRTRRO
#else
#define MAPPED_TXREQ FILHIT3
#endif

блаблабла

while ((TXQueueCount > 0) && (LastTXBufferUsed < ECAN_MAX_TX_BUFFERS))
{
#if ECAN_LEGACY_MODE == J1939_TRUE
CANCON = BUFFER_TABLE[LastTXBufferUsed].WindowBits;
#else
ECANCON = BUFFER_TABLE[LastTXBufferUsed].WindowBits;
#endif
if (!MAPPED_CONbits.MAPPED_TXREQ) // make sure buffer is free
{
TXQueue[TXHead].SourceAddress = J1939_Address;
SendOneMessage( (J1939_MESSAGE *) &(TXQueue[TXHead]) );
TXHead ++;
if (TXHead >= J1939_TX_QUEUE_SIZE)
TXHead = 0;
TXQueueCount --;
}
LastTXBufferUsed++;
}