Posted on November 07, 2007 at 06:03Hallo,
I want to use the serial interface and i had used the code below (I use Tasking)but it did not work. can someone please help me.
(XPEN, XASCEN, XMISCEN are set in the startup code)
#include
#include
/*********************************************/
void xasc_init( void)
{
/* xasc interface in 8-bit mode, with no parity, no erroir checking , receiver enable */
XS1CON = 0x0011;
/* XS1BG Fcpu = 40000000, SOBRS = 0*/
XS1BG = 0x81;
/* xasc buffer transmit interrupt configuration */
XIR2SEL =0x2000;
XP2IC = 0x0040 | ( 0x0005 << 2) | (0x0001);
/* set port pins P8.7 -> Tx, P8.6 Rx */
XS1PORT |= 0x0010;
_nop();
XS1PORT |= 0x0008;
/* xasc interface enable */
XS1CONSET = 0x8000;
}
/**************************************/
interrupt( 0x42) void xasc_transmit(void)
{
static unsigned char index=0;
static unsigned char Message[5] = ''Hello'';
XIR2CLR = 0x0020;
XS1TBUF = Message[index];
index++;
if( index == 5 ) index = 0;
}
main()
{
xasc_init();
/* trigger the first transmission by setting the flag XIR1SEL*/
XIR2SET = 0x0020;
XP2IR = 1;
while(1);
}
[ This message was edited by: kerzingereric on 07-11-2007 10:46 ]
