fet210_1.s43

来自「德州仪器(TI) 的超低功耗16 位RISC 混合信号处理器的MSP430 平台」· S43 代码 · 共 39 行

;******************************************************************************
;   MSP-FET430x210 Demo - Software Toggle P1.0 
;
;   Description; Toggle P1.0 by xor'ing P0.1 inside of a software loop.
;   ACLK = n/a, MCLK = SMCLK = default DCO ~ 800k
;
;                MSP430F2131
;             -----------------
;         /|\|              XIN|-  
;          | |                 |
;          --|RST          XOUT|-
;            |                 |
;            |             P1.0|-->LED
;
;   M.Buccini
;   Texas Instruments, Inc
;   September 2004
;******************************************************************************
#include  "msp430x21x1.h"
;------------------------------------------------------------------------------
            ORG     0FC00h                  ; 
;------------------------------------------------------------------------------
RESET       mov.w   #280h,SP                ; Initialize 'x2131 stackpointer
StopWDT     mov.w   #WDTPW+WDTHOLD,&WDTCTL  ; Stop WDT
SetupP1     bis.b   #001h,&P1DIR            ; P1.0 output
                                            ;				  
Mainloop    xor.b   #001h,&P1OUT            ; Toggle P1.0
Wait        mov.w   #050000,R15             ; Delay to R15
L1          dec.w   R15                     ; Decrement R15
            jnz     L1                      ; Delay over?
            jmp     Mainloop                ; Again
                                            ;
;----------------------------------------------------------------------------- 
;           Interrupt Vectors Used MSP430x21x1         
;----------------------------------------------------------------------------- 
            ORG     0FFFEh                  ; MSP430 RESET Vector
            DW      RESET                   ; 
            END