DA.rar_MSP430 DA

//******************************************************************************* // MSP-FET430P140 Demo - DAC12_0, Output 1.0V on DAC0 // // Description: Using DAC12.0 and 2.5V ADC12REF reference with a gain of 1, // output 1V on P6.6. Ouput accuracy is specified by that of the ADC12REF. // //* MSP430F169 Device Required *// // // MSP430F169 // ----------------- // /|\| XIN|- // | | | // --|RST XOUT|- // | | // | DAC0/P6.6|--> 1V // | | // // M. Buccini // Texas Instruments Inc. // Feb 2005 // Built with IAR Embedded Workbench Version: 3.21A //****************************************************************************** #include <msp430x16x.h> #include "PrecisionDelay.h" void main(void) { int i; WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer ADC12CTL0 = REF2_5V + REFON; // Internal 2.5V ref on for ( i=0; i<0x3600; i++) // Delay for reference start-up { } DAC12_1CTL = DAC12IR + DAC12AMP_5 + DAC12ENC; // Internal ref gain 1 DAC12_1CTL = DAC12CALON; delay_ms(40); //wait for the end of cal DAC12_1DAT = 0xccc; // 1V _BIS_SR(LPM4_bits); // Enter LPM4 }