fet140_1.c

uart和ad转换,基于ti的msp430

#include  <msp430x14x.h>

void main(void)
{


	volatile unsigned int i;



  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT

/*   init  adc         */

  ADC12CTL0 = SHT0_2 + ADC12ON;             // Set sampling time, turn on ADC12
  ADC12CTL1 = SHP;                          // Use sampling timer
  ADC12IE = 0x01;                           // Enable interrupt
  ADC12CTL0 |= ENC;                         // Conversion enabled
  P6SEL |= 0x01;                            // P6.0 ADC option select
  P1DIR |= 0x01;                            // P1.0 output
   ADC12CTL0 |= ADC12SC;

/*   init  uart0         */

/*
	P3SEL |= 0x30;	
	BCSCTL1 &= ~XT2OFF;
	do
	{
	IFG1 &= ~OFIFG;
	for (i = 0xFF; i > 0; i--);
	}
	while ((IFG1 & OFIFG));
	BCSCTL2 |= SELM_2 + SELS;	
	ME1 |= UTXE0 + URXE0;
	UCTL0 |= CHAR;
	UTCTL0 |= SSEL1;
	UBR00 = 0xa0;
	UBR10 = 0x01;
	UMCTL0 = 0x00;
	UCTL0 &= ~SWRST;
	IE1 |= URXIE0;

	*/

/*init uart1*/


	WDTCTL = WDTPW + WDTHOLD;
	P3SEL |= 0xC0;

	BCSCTL1 &= ~XT2OFF;

	do
	{
	IFG1 &= ~OFIFG;
	for (i = 0xFF; i > 0; i--);
	}
	while ((IFG1 & OFIFG));
	

	BCSCTL2 |= SELM_2 + SELS;
	
	ME2 |= UTXE1 + URXE1;
	UCTL1 |= CHAR;
	UTCTL1 |= SSEL1;
	UBR01 = 0xa0;
	UBR11 = 0x01;
	UMCTL1 = 0x00;
	UCTL1 &= ~SWRST;
	IE2 |= URXIE1;



  for (;;)
  {
    ADC12CTL0 |= ADC12SC;                   // Sampling open
    _BIS_SR(CPUOFF + GIE);                  // LPM0, ADC12_ISR will force exit
  }

   _BIS_SR(LPM0_bits + GIE);                 // Enter LPM0 w/ interrupt

}

// ADC12 interrupt service routine
#pragma vector=ADC_VECTOR
__interrupt void ADC12_ISR (void)
{	

	while (!(IFG2 & UTXIFG1));                // USART0 TX buffer ready?
  		TXBUF1 = ADC12MEM0 & 0xff;                          // RXBUF0 to TXBUF0
	
    _BIC_SR_IRQ(CPUOFF);                    // Clear CPUOFF bit from 0(SR)
	
}


#pragma vector=UART1RX_VECTOR
__interrupt void usart1_rx (void)
{

}