?? fet110_wdt01.s43
字號:
;******************************************************************************
; MSP-FET430x110 Demo - WDT Toggle P1.0 Interval overflow ISR, DCO SMCLK
;
; Description; Toggle P1.0 using software timed by the WDT ISR. Toggle rate
; is approximately 30ms based on default ~ 800khz DCO/SMCLK clock source
; used in this example for the WDT.
; ACLK = n/a, MCLK = SMCLK = default DCO ~ 800k
;
; MSP430F1121
; -----------------
; /|\| XIN|-
; | | |
; --|RST XOUT|-
; | |
; | P1.0|-->LED
;
; M.Buccini
; Texas Instruments, Inc
; January 2004
;******************************************************************************
#include "msp430x11x1.h"
;------------------------------------------------------------------------------
ORG 0F000h ; Program Start
;------------------------------------------------------------------------------
RESET mov.w #300h,SP ; Initialize 'x1121 stackpointer
SetupWDT mov.w #WDT_MDLY_32,&WDTCTL ; WDT ~30ms interval timer
bis.b #WDTIE,&IE1 ; Enable WDT interrupt
SetupP1 bis.b #001h,&P1DIR ; P1.0 output
;
Mainloop bis.w #CPUOFF+GIE,SR ; CPU off, enable interrupts
nop ; Required only for debugger
;
;------------------------------------------------------------------------------
WDT_ISR; Toggle P1.0
;------------------------------------------------------------------------------
xor.b #001h,&P1OUT ; Toggle P1.0
reti ;
;
;------------------------------------------------------------------------------
; Interrupt Vectors Used MSP430x11x1
;------------------------------------------------------------------------------
ORG 0FFFEh ; MSP430 RESET Vector
DW RESET ;
ORG 0FFF4h ; WDT Vector
DW WDT_ISR ;
END
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