int uart0_receiveString( char* string)
{
int stop = 0; // boolean for stop value
char ch;
while (!stop) // while contunie
{
ch = uart0_receiveChar(); // read ch
if ( ch == LF ) // stop at LF
stop = 1;
else
*string++ = ch; // else fill buffer
}
*string = '\0'; // string terminator
return 0;
}
// Main program: USART0: send & receive
int main( void )
{
DDRB = 0xFF; // set PORTB for output, for testing
DDRA = 0xFF; // set PORTA for output, for testing
usart0_init(); // initialize USART0
usart0_start(); // uart0: start send & receive
while (1)
{
wait(50); // every 50 ms (busy waiting)
PORTB ^= BIT(7); // toggle bit 7 for testing
character = uart0_receiveChar(); // read char
PORTA = character; // show read character, for testing
uart0_sendChar(character); // send back
}
}