Posted on May 17, 2011 at 11:55 Thanks, for the reply
Interrupt initialization:
void Interrupt_init (void)
{
EA = 0; /* disable interrupts */
timer0_tick = 0;
TR0 = 0; /* stop timer 0 */
TMOD &= 0xF0; /* clear timer 0 mode bits - bottom 4 bits */
TMOD |= 0x01; /* put timer 0 into 16-bit no prescale */
// Calculate timer tollover based on FREQ_OSC to be 10ms periods
timer0_value = 0x10000 - ( ((FREQ_OSC * 5L) / 6L) - 17L);
TL0 = (timer0_value & 0x00FF);
TH0 = (timer0_value >>
;
PT0 = 1; /* set high priority for timer 0 */
ET0 = 1; /* enable timer 0 interrupt */
TR0 = 1; /* start timer 0 */
PS = 1; /* set high priority for USART */
ES = 1; /* enable USART 0 interrupt */
EA = 1; /* enable interrupts */
}
No interrup is being generated on transmit. I only want an interrupt to be generated on receive.
void Serial_Transmit(unsigned char value)
{
unsigned int clock_buf;
//Disable Interrupts
EA = 0;
//Enable RTS signal
P4_3 = TRUE;
SBUF = value; // Xmit the Char
while (TI == 0); // Wait Loop till finished xmit of last char
TI = 0; //set TI bit to 0
//extend the RTS signal to include the stop bit
for (clock_buf=0; clock_buf
{
clock_buf++;
}
//Disable RTS signal
P4_3 = FALSE;
//Enable Interrupts
EA = 1;
}
