; MSP430G2xx2 Demo - WDT+ Failsafe Clock, 32kHz ACLK ; ; Description; Allow WDT+ in watchdog to timeout sourced by ACLK.. LPM3 is ; entered, this example will demonstrate WDT+ feature by
Trang 1; MSP430G2xx2 Demo - WDT+ Failsafe Clock, 32kHz ACLK
;
; Description; Allow WDT+ in watchdog to timeout sourced by ACLK LPM3 is
; entered, this example will demonstrate WDT+ feature by automatically
; re-enabling WDT+ clock source as DCO if external XTAL fails This can be
; seen as a continued, though faster as clocked by DCO, watchdog timeout
; which will toggle on P1.0 in main function
; ACLK = 32kHz, MCLK = SMCLK = default DCO
;
; MSP430G2xx2
;
-; /|\|
XIN|-; | | | 32kHz
; |RST
XOUT|-; | |
; | P1.0| >LED
;
; D Dang
; Texas Instruments Inc
; December 2010
; Built with Code Composer Essentials Version: 4.2.0
;******************************************************************************* .cdecls C,LIST, "msp430g2452.h"
.text ; Program Start
; -RESET mov.w #0280h,SP ; Initialize stackpointer
SetupWDT mov.w #WDT_ARST_1000,&WDTCTL ; Set Watchdog Timer timeout 1s bis.b #001h,&P1DIR ; P1.0 output
xor.b #001h,&P1OUT ; Toggle P1.0
bis.w #LPM3,SR ;
Mainloop jmp $
; -; Interrupt Vectors
.sect ".reset" ; MSP430 RESET Vector
short RESET ;
end