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Cameron
2018-03-18 00:56:37 -04:00
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content/dxp_Lab2_a1.asm Normal file
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;-------------------------------------------------------------------------------
; MSP430 Assembler Code Template for use with TI Code Composer Studio
; MSP430G2553 Demo - Software Toggle P1.0
;
; Description; Toggle P1.0 by xor'ing P1.0 inside of a software loop.
; ACLK = n/a, MCLK = SMCLK = default DCO ~ 800k
;
; MSP430x1xx
; -----------------
; /|\| XIN|-
; | | |
; --|RST XOUT|-
; | |
; | P1.0|-->LED
;
; M.Buccini
; Texas Instruments, Inc
; September 2004
; Built with CCE for MSP430 Version: 1.00
; Modified and enhanced for the EE365 Kit by Dorin Patru, March 2011;
; Modified and enhanced for the LaunchPad by Dorin Patru, September 2013
;-------------------------------------------------------------------------------
.cdecls C,LIST,"msp430.h" ; Include device header file
;-------------------------------------------------------------------------------
.text ; Assemble into program memory
.retain ; Override ELF conditional linking
; and retain current section
.retainrefs ; Additionally retain any sections
; that have references to current
; section
;-------------------------------------------------------------------------------
RESET mov.w #__STACK_END,SP ; Initialize stackpointer
StopWDT mov.w #WDTPW|WDTHOLD,&WDTCTL ; Stop watchdog timer
;-------------------------------------------------------------------------------
; Main loop here
;-------------------------------------------------------------------------------
SetupP4 bis.b #001h,&P1DIR ; P1.0 output
mov.w #0x12EF,r12 ;
clr.w r13 ;
clr.w r14 ;
clr.w r15 ;
mov.b r12,r13 ;
mov.w r12,r14 ;
mov.w r12,r15 ;
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
;-------------------------------------------------------------------------------
; Stack Pointer definition
;-------------------------------------------------------------------------------
.global __STACK_END
.sect .stack
;-------------------------------------------------------------------------------
; Interrupt Vectors
;-------------------------------------------------------------------------------
.sect ".reset" ; MSP430 RESET Vector
.short RESET