//*******************************************************************************
// 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>
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
ADC12CTL0 = REF2_5V + REFON; // Internal 2.5V ref on
DAC12_0CTL = DAC12IR + DAC12AMP_5 + DAC12ENC; // Internal ref gain 1
DAC12_0DAT = 0x666; // 1V
_BIS_SR(LPM4_bits); // Enter LPM4
}
上面是TI的例程，我怎么改才能让输出最大为3.3v?
求指教
