…
//next transmission, we send the address A1
outputBuffer = _HEADER_;//header
while (!XUartLite_Send (&uart, &outputBuffer, 1));
outputBuffer = _DEVICE_ADDRESS;//device address
while (!XUartLite_Send (&uart, &outputBuffer, 1));
while (!XUartLite_Recv (&uart, &inputBuffer, 1));
//check the checksum
if (inputBuffer == ((_HEADER_ + _DEVICE_ADDRESS)&0xff))
{
//checksum ok
//transmit ACK to the board
outputBuffer = _OK_;
while (!XUartLite_Send (&uart, &outputBuffer, 1));
while (!XUartLite_Recv (&uart, &inputBuffer, 1));
for (j=0; j<20000000; j++);//wait for synchronize
if (inputBuffer == 0x55)
{
//interface ready for the next transmission
…