Serial ports on the SA1100 (cont’d)

sp1->utcr0 = 0x08; // set 8-N-1, asynchronous

sp1->utcr1 &= 0xF0; // clear the last four bits

sp1->utcr1 |= (bdr >> 8); // set the baud rate

sp1->utcr2 = bdr; // ...

sp1->utcr3 = 0x0B; // set various functions (see 11-135 in Developer Manual)

SetIrqLevel( IRQ_UART0, FALSE );

EnableIrq( IRQ_UART0 );

oldcount = count;

while(1) {

if ( count > oldcount ) {

printf( "received characters %c\n", sp1->utdr );

}

return 0;

}