Hello,
I am trying to make a code in order to read a value from the ADC12 of my msp430F5438A, and send this value through the UART port and visualize it in a LABVIEW program on my Computer.
The LABVIEW do not receive any data, but if I test other code with nly a TImer and UART, the program show the received data. I am thinking that this problem is due to the code is not correct.
Can someone help me to check if this code is sending data?
#include <msp430.h>
#define ADC_UART_CONV 0.0622710622710623 //Convert ADC value in order to use with UARTBUF
int ADC_IN=0; //ADC Value
int UART_OUT=0; //Uart value after conversion
int main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop WDT
//Configuración Timer
TA0CCTL1 = CCIE; // CCR1 interrup enabled
TA0CCR0 = 3277-1; //100ms
//TA0CCR1 = 16384;
TA0CTL = TASSEL_1 + MC_1 + TACLR + TAIE ; // ACLK, upmode, clear TAR
//Configuración UART
UCA0CTL1 |= UCSWRST; // **Put state machine in reset**
UCA0CTL1 |= UCSSEL_2; // SMCLK
UCA0BR0 = 6; // 1MHz 9600 (see User's Guide)
UCA0BR1 = 0; // 1MHz 9600
UCA0MCTL = UCBRS_0 + UCBRF_13 + UCOS16; // Modln UCBRSx=0, UCBRFx=0,
// over sampling
UCA0CTL1 &= ~UCSWRST; // **Initialize USCI state machine**
//Configuración ADC
ADC12CTL0 = ADC12SHT02 + ADC12ON; // Sampling time, ADC12 on
ADC12CTL1 = ADC12SHP; // Use sampling timer
ADC12IE = 0x01; // Enable interrupt
ADC12MCTL0 |= ADC12INCH_7;
ADC12CTL0 |= ADC12ENC;
P6SEL |= 0x80; // P6.7 ADC option select
P1DIR |= BIT0; // P1.0 output
__delay_cycles(10000);
while (1)
{
ADC12CTL0 |= ADC12SC; // Start sampling/conversion
__bis_SR_register(LPM0_bits + GIE); // LPM0, ADC12_ISR will force exit
__no_operation(); // For debugger
}
}
// Timer0 A1 interrupt service routine
#pragma vector = TIMER0_A1_VECTOR
__interrupt void Timer0_A1_ISR( void )
{
switch( TA0IV ) // Read interrupt vector for TA0
{
case 0: // No interrupt pending
{
break;
}
case 2: // TA0CCR1
{
// P1OUT = 0x03; // Toggle P1.1
break;
}
case 4: // TA0CCR2
{
break;
}
case 6: // TA0CCR3
{
break;
}
case 8: // TA0CCR4
{
break;
}
case 14: // Overflow - TA0IFG
{
while (!(UCA0IFG&UCTXIFG)); // USCI_A0 TX buffer ready?
UCA0TXBUF=16;
}
break;
}
}
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector = ADC12_VECTOR
__interrupt void ADC12_ISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(ADC12_VECTOR))) ADC12_ISR (void)
#else
#error Compiler not supported!
#endif
{
switch(__even_in_range(ADC12IV,34))
{
case 0: break; // Vector 0: No interrupt
case 2: break; // Vector 2: ADC overflow
case 4: break; // Vector 4: ADC timing overflow
case 6: // Vector 6: ADC12IFG0
ADC_IN = ADC12MEM0; //ADC value stored
UART_OUT=ADC_IN*ADC_UART_CONV; // Conversion
/*
while (!(UCA0IFG&UCTXIFG)); // USCI_A0 TX buffer ready?
UCA0TXBUF=UART_OUT;
*/
if (ADC12MEM0 >= 0x7ff) // ADC12MEM = A0 > 0.5AVcc?
P1OUT |= BIT0; // P1.0 = 1
else
P1OUT &= ~BIT0; // P1.0 = 0
__bic_SR_register_on_exit(LPM0_bits); // Exit active CPU
break;
case 8: break; // Vector 8: ADC12IFG1
case 10: break; // Vector 10: ADC12IFG2
case 12: break; // Vector 12: ADC12IFG3
case 14: break; // Vector 14: ADC12IFG4
case 16: break; // Vector 16: ADC12IFG5
case 18: break; // Vector 18: ADC12IFG6
case 20: // Vector 20: ADC12IFG7
break;
case 22: break; // Vector 22: ADC12IFG8
case 24: break; // Vector 24: ADC12IFG9
case 26: break; // Vector 26: ADC12IFG10
case 28: break; // Vector 28: ADC12IFG11
case 30: break; // Vector 30: ADC12IFG12
case 32: break; // Vector 32: ADC12IFG13
case 34: break; // Vector 34: ADC12IFG14
default: break;
}
}
Thanks in advance
