Lpc2000

--- In lpc2000@yahoogroups.com, "ian.scanlon" <scanlon.design@...> wrote:
> 
> Does writing directly to the uart tx register work? How about putc ?
>

writing directly works very well as long as you do not overfill the
fifo's.

here is some code I wrote earlier ;)

typedef union
{
	unsigned long whole;
	unsigned char part_byte[4];
} four_bytes;

void UNDEF_Routine(void)
{
	register unsigned int *lr_ptr asm("r14");
	
	four_bytes temp;
	temp.whole = (usigned long) lr_ptr;
	UART0_THR = 	temp.part_byte[3];
	UART0_THR = 	temp.part_byte[2];
	UART0_THR = 	temp.part_byte[1];
	UART0_THR = 	temp.part_byte[0];
}

By the way thanks to the guys who helped me with reading the Link
Regitser.