void uart_init() {
PORTD |= 0x01; //Pullup an RXD an
UCSRB |= (1<<TXEN); //UART TX einschalten
#ifdef ATMEGA644
UCSRA = 0;
UCSRC = (3<<UCSZ0); //Asynchron 8N1
#else
UCSRA = 0;
UCSRC |= (1<<URSEL)|(3<<UCSZ0); //Asynchron 8N1
#endif
UCSRB |= ( 1 << RXEN ); //Uart RX einschalten
UBRRH=(uint8_t)(UART_BAUD_CALC(UART_BAUD_RATE,F_CPU)>>8);
UBRRL=(uint8_t)(UART_BAUD_CALC(UART_BAUD_RATE,F_CPU));
#ifdef UART_INTERRUPT
// init buffers
rxhead = rxtail = rxbuf;
txhead = txtail = txbuf;
// activate rx IRQ
UCSRB |= _BV(RXCIE) | _BV(UDRIE);
sei();
// #ifdef ATMEGA644
// UCSRB |= _BV(UDRIE);
// #endif
#endif // UART_INTERRUPT
}
BOOL
xMBPortSerialInit( UCHAR ucPORT, ULONG ulBaudRate, UCHAR ucDataBits, eMBParity eParity )
{
UCHAR ucUCSRC = 0;
/* prevent compiler warning. */
(void)ucPORT;
UBRR = UART_BAUD_CALC( ulBaudRate, F_CPU );
switch ( eParity )
{
case MB_PAR_EVEN:
ucUCSRC |= _BV( UPM1 );
break;
case MB_PAR_ODD:
ucUCSRC |= _BV( UPM1 ) | _BV( UPM0 );
break;
case MB_PAR_NONE:
break;
}
switch ( ucDataBits )
{
case 8:
ucUCSRC |= _BV( UCSZ0 ) | _BV( UCSZ1 );
break;
case 7:
ucUCSRC |= _BV( UCSZ1 );
break;
}
#if defined (__AVR_ATmega168__)
UCSRC |= ucUCSRC;
#elif defined (__AVR_ATmega169__)
UCSRC |= ucUCSRC;
#elif defined (__AVR_ATmega8__)
UCSRC = _BV( URSEL ) | ucUCSRC;
#elif defined (__AVR_ATmega16__)
UCSRC = _BV( URSEL ) | ucUCSRC;
#elif defined (__AVR_ATmega32__)
UCSRC = _BV( URSEL ) | ucUCSRC;
#elif defined (__AVR_ATmega128__)
UCSRC |= ucUCSRC;
#endif
vMBPortSerialEnable( FALSE, FALSE );
#ifdef RTS_ENABLE
RTS_INIT;
#endif
return TRUE;
}
void UART_Init(void)
{
UCSRB |= (1<<TXEN)|(1<<RXEN)|(1<<RXCIE);
UCSRC |= (1<<URSEL)|(3<<UCSZ0);
UBRRH=(uint8_t)(UART_BAUD_CALC(UART_BAUD_RATE,F_CPU)>>8);
UBRRL=(uint8_t)UART_BAUD_CALC(UART_BAUD_RATE,F_CPU);
UART_Rx_Cmd = 0;
UART_Rx_Index = 0;
UART_Tx_Ring_txptr = 0;
UART_Tx_Ring_rxptr = 0;
UART_Tx_Ring_Size = 0;
#ifdef printfoverrs232
stdout = &mystdout;
#endif
}
void uart_init(void) {
#ifdef UART_LEDS
DDRC |= 0x03; // Port C LED outputs
#endif
PORTD |= 0x01; //Pullup an RXD an
UCSRA = 0;
UCSRB = (1<<TXEN) | ( 1 << RXEN); //UART RX und TX einschalten
UCSRC = (3<<UCSZ0); //Asynchron 8N1
UBRRH=(uint8_t)(UART_BAUD_CALC(UART_BAUD_RATE,F_CPU)>>8);
UBRRL=(uint8_t)(UART_BAUD_CALC(UART_BAUD_RATE,F_CPU));
#ifdef UART_INTERRUPT
// init buffers
rxhead = rxtail = rxbuf;
txhead = txtail = txbuf;
// activate rx IRQ
UCSRB |= (1 << RXCIE);
#endif // UART_INTERRUPT
}
uint8_t uart_len, uart_done, sem_uart;
unsigned char uartbuf[32];
/* Initialize UART */
void uart_init( void)
{
UBRRH = (uint8_t)(UART_BAUD_CALC(UART_BAUD_RATE,F_OSC)>>8);
UBRRL = (uint8_t)UART_BAUD_CALC(UART_BAUD_RATE,F_OSC);
UCSRB = ( (1<<RXEN) | (1<<TXEN) ); /* Enable UART receiver and transmitter */
UCSRC = (1 << URSEL) | (1 << UCSZ0) | (1 << UCSZ1);
uart_len=0;
uart_done=0;
unlock(&sem_uart);
UCSRB |= (1<<RXCIE); /* interrupts toestaan*/
sei();
}
char sMBPortSerialInit(unsigned long ulBaudRate, unsigned char ucDataBits, sMBParityMode eParity)
{
switch ( eParity )
{
case MB_PAR_EVEN:
if(ucDataBits == 8)
{
*SCICCR = 0x67; // 01100111
}
else if(ucDataBits == 7)
{
*SCICCR = 0x66; // 01100110
}
else
{
return 0;
}
break;
case MB_PAR_ODD:
if(ucDataBits == 8)
{
*SCICCR = 0x27; // 00100111
}
else if(ucDataBits == 7)
{
*SCICCR = 0x26; // 00100110
}
else
{
return 0;
}
break;
case MB_PAR_NONE:
if(ucDataBits == 8)
{
// No Parity is implemented, an additional stop bit is required.
*SCICCR = 0x87; // 10000111
}
else if(ucDataBits == 7)
{
// No Parity is implemented, an additional stop bit is required.
*SCICCR = 0x86; // 10000110
}
else
{
return 0;
}
break;
default:
break;
}
*SCIHBAUD = (UART_BAUD_CALC(ulBaudRate, F_CPU) & 0xFF00) >> 8;
*SCILBAUD = UART_BAUD_CALC(ulBaudRate, F_CPU) & 0x00FF;
*SCIPRI = 0x60;
*MCRA = (*MCRA) | 0x0003;
*IMR = (*IMR) | 0x0010;
sMBPortSerialEnable( 0, 0 );
return 1;
}
