fet430_oa_03.asm

MSP430FG43X Assembler Examples Code,Composer Essentials Code Examples

;*******************************************************************************
;   MSP-FET430P430 Demo - OA0, General-Purpose Mode
;
;   Description: Configure OA0 for General-Purpose mode.
;   ACLK = n/a, MCLK = SMCLK = default DCO
;
;                 MSP430FG439
;              -------------------
;          /|\|                XIN|-
;           | |                   |
;           --|RST            XOUT|-
;             |                   |
;      "+" -->|P6.0/OA0I0         |
;      "-" -->|P6.2/OA0I1         |
;             |                   |
;             |          P6.1/OA0O|--> OA0 Output
;             |                   |
;             |                   |
;
;   M. Mitchell / M. Mitchell
;   Texas Instruments Inc.
;   May 2005
;   Built with Code Composer Essentials Version: 1.0
;*******************************************************************************
 .cdecls C,LIST,  "msp430xG43x.h"

;------------------------------------------------------------------------------
            .text                  ; Program Start
;------------------------------------------------------------------------------
RESET       mov.w   #0A00h,SP               ; Initialize stack pointer
StopWDT     mov.w   #WDTPW+WDTHOLD,&WDTCTL  ; Stop WDT
                                            ;
SetupOA     mov.b   #OAN_1+OAPM_1,&OA0CTL0  ; "+" connected to OA0I0 (default),
                                            ; "-" connected to OA0I1
            mov.b   #OARRIP,&OA0CTL1        ; No r-to-r input
                                            ; 				
Mainloop    bis.w   #LPM3,SR                ; Enter LPM3
            nop                             ; Required only for debug
                                            ;
;------------------------------------------------------------------------------
;           Interrupt Vectors
;------------------------------------------------------------------------------
            .sect   ".reset"                ; RESET Vector
            .short  RESET                   ;
            .end