fet430_dac12_02.s43

来自「MSP430FG43x系列单片机汇编源代码」· S43 代码 · 共 41 行

;******************************************************************************
;   MSP-FET430P430 Demo - DAC12_1, Output 2.0V on DAC1
;
;   Description: Using DAC12_1 and 2.5V ADC12REF reference with a gain of 1,
;   output 2V on DAC1.
;   ACLK = n/a, MCLK = SMCLK = default DCO
;
;                MSP430FG439
;             -----------------
;         /|\|              XIN|-
;          | |                 |
;          --|RST          XOUT|-
;            |                 |
;            |        P6.7/DAC1|--> 2V
;            |                 |
;
;   M. Buccini
;   Texas Instruments Inc.
;   Feb 2005
;   Built with IAR Embedded Workbench Version: 3.21A
;******************************************************************************
#include  <msp430xG43x.h>
;;------------------------------------------------------------------------------
            ORG     01100h                  ; Progam Start
;------------------------------------------------------------------------------
RESET       mov.w   #0A00h,SP               ; Initialize stack pointer
StopWDT     mov.w   #WDTPW+WDTHOLD,&WDTCTL  ; Stop WDT
SetupADC12  mov.w   #REF2_5V+REFON,&ADC12CTL0       ; Internal 2.5V ref on
SetupDAC12  mov.w   #DAC12IR+DAC12AMP_5+DAC12ENC,&DAC12_1CTL ; Int ref gain 1
            mov.w   #0CCCh,&DAC12_1DAT      ; 2.0V
                                            ;
Mainloop    bis.w   #CPUOFF,SR              ; Enter LPM0
            nop                             ; Required only for debugger
                                            ;
;------------------------------------------------------------------------------
;           Interrupt Vectors
;------------------------------------------------------------------------------
            ORG     0FFFEh                  ; RESET Vector
            DW      RESET                   ;
            END