source: firmware/MSR/src/UARTBUF/MAIN.C@ 20115

/************************************************************************/
/*                                                                      */
/*                      UART test program                               */
/*                                                                      */
/*              Author: Peter Dannegger                                 */
/*                                                                      */
/************************************************************************/
#include "main.h"
#include "uart0.h"


void delay_1ms( u16 i )
{
  do{
    _delay_ms( 1 );
  }while( --i );
}


int main( void )
{
  init_uart0( (u16)(XTAL / BAUD / 16 - 0.5) );
  sei();
  delay_1ms( 300 );
  uputs0("Hallo Peter\n\r");
  uputs0("UART buffer test\n\r");

  for(;;){
    if( !ukbhit0()){
      continue;
    }
    delay_1ms( 10000 );                         // wait 10s
                                                // to see rx buffer overflow
    do{
      uputchar0( ugetchar0());                  // send without waiting
      if( !utx0_ready() ){
        if( !ukbhit0()){
          break;
        }
        uputchar0( '.' );                       // to see tx buffer size
        do{
          uputchar0( ugetchar0());              // send with busy waiting
        }while( ukbhit0());
      }
    }while( ukbhit0());
    uputchar0( '\n' );
    uputchar0( '\r' );
  }
}