uint8_t sendByte(uint8_t data, uint8_t channel) {
cli();
uint8_t tries = 1 ;
#ifdef USE_UART
if (channel == 2) {
sei();
return FALSE;
}
#endif
while (1) {
if (tx_parity_error || tries) {
if (txChar(data, channel)) {
sei();
return TRUE;
}
else if (tries > 0) {
tries--;
}
}
else {
sei();
return FALSE;
}
}
}
void serialRegsPoll( void )
{
StructUSART *usart = DEFUART ;
unsigned short csr = usart->US_CSR ;
while( ( 0 != (csr & US_TXRDY) )
&&
( txAdd != txTake ) )
{
usart->US_THR = txBuf[txTake++];
csr = usart->US_CSR ;
}
if( txAdd == txTake ){
txAdd = txTake = 0 ;
} // reset to beginning
while( 0 != (csr & US_RXRDY ) ){
unsigned char inChar = usart->US_RHR ;
if( '\r' == inChar ){
// process data here
rxBuf[rxAdd] = 0 ;
process();
tx( prompt );
} else if( '\b' == inChar ){
if( rxAdd >= 1 ){
--rxAdd ;
tx( "\b \b" );
}
} else if( ('U'-'@') == inChar ){
if( rxAdd >= 1 ){
rxAdd = 0 ;
tx( "^U\r\n" );
}
} else {
txChar(inChar);
rxBuf[rxAdd++] = inChar ;
rxAdd &= RXBUFMASK ;
}
csr = usart->US_CSR ;
}
}
uint8_t sendByte(uint8_t data, uint8_t channel) {
// signed int tries = TX_TRIES;
signed int tries = 1 ;
#ifdef USE_UART
if (channel == 2)
return FALSE;
#endif
while (1) {
if (tx_parity_error || tries) {
if (txChar(data, channel)) {
return TRUE;
}
else if (tries > 0) {
tries--;
}
}
else {
return FALSE;
}
}
}
