fet110_poll_p2.s43

msp430p1110

#include  "msp430x11x1.h"
;******************************************************************************
;   MSP-FET430x110 Demo - Software Poll P2.0 with Set P1.0 if P2.0 = 1
;
;   Description; Poll P2.0 in a loop, if hi P1.0 is set, if low, P1.0 reset.
;   ACLK = n/a, MCLK = SMCLK = default DCO ~ 800k 
;
;                 MSP430F1121
;             -----------------
;         /|\|              XIN|-  
;          | |                 |
;          --|RST          XOUT|-
;      /|\   |                 |
;       --o--| P2.0        P1.0|-->LED
;      \|/
;
;   M.Buccini
;   Texas Instruments, Inc
;   January 2002
;******************************************************************************
;------------------------------------------------------------------------------
            ORG     0F000h                  ; 
;------------------------------------------------------------------------------
RESET       mov.w   #300h,SP                ; Initialize stackpointer
StopWDT     mov.w   #WDTPW+WDTHOLD,&WDTCTL  ; Stop WDT
SetupP1     bis.b   #001h,&P1DIR            ; P1.0 output
                                            ;				          							  
Mainloop    bit.b   #001h,&P2IN             ; P2.0 hi/low?
            jc      ON                      ; jmp--> P2.0 is set
                                            ;
OFF         bic.b   #001h,&P1OUT            ; P1.0 = 0 / LED OFF
            jmp     Mainloop                ;  
ON          bis.b   #001h,&P1OUT            ; P1.0 = 1 / LED ON
            jmp     Mainloop                ;  
                                            ;
;------------------------------------------------------------------------------
;           Interrupt Vectors Used MSP430x11x1         
;------------------------------------------------------------------------------
            ORG     0FFFEh                  ; MSP430 RESET Vector
            DW      RESET                   ; 
            END