- CODE: SELECT_ALL_CODE
; sample code in Microchip Technology PIC Assembly Language
; to accompany a circuit that controls Flexinol actuator wire
;
; individual pins RC0-RC3 are brought high for intervals of approximately
; one second and the cycle repeats endlessly
;---------------------------------------------------------------------------------
;---------------------------------------------------------------------------------
; initialization - load the standard include file and set the configuration bits
;---------------------------------------------------------------------------------
list p=16F690
#include
__config (_INTRC_OSC_NOCLKOUT & _WDT_OFF & _PWRTE_OFF & _MCLRE_OFF & _CP_OFF
& _BOR_OFF & _IESO_OFF & _FCMEN_OFF)
;---------------------------------------------------------------------------------
; variables
;---------------------------------------------------------------------------------
UDATA
CounterA res 1 ; these variables are all used as counters
CounterB res 1 ; in the delay subroutine
CounterC res 1
;---------------------------------------------------------------------------------
; Code
;---------------------------------------------------------------------------------
CODE 0x00
Start:
banksel TRISC
clrf TRISC ; make PORTC all output
banksel PORTC
PinCycle:
movlw b'00000001' ; put the bit pattern for the outputs into W
movwf PORTC ; load the bit pattern into PORTC
call OneSecondDelay ; go to the delay subroutine
movlw b'00000010' ; repeat for the next pattern...
movwf PORTC
call OneSecondDelay
movlw b'00000100'
movwf PORTC
call OneSecondDelay
movlw b'00001000'
movwf PORTC
call OneSecondDelay
goto PinCycle
OneSecondDelay: ; the delay routine is based on a sequence
movlw 0x06 ; of nested loops which have been calculated to
movwf CounterC ; take approximately one second to complete
movlw 0x18
movwf CounterB
movlw 0xA7
movwf CounterA
OSDLoop:
decfsz CounterA,1
goto OSDLoop
decfsz CounterB,1
goto OSDLoop
decfsz CounterC,1
goto OSDLoop
return
end
this is the coding for the PIC 16F690 to control shape memory alloy. but this coding has missing some thing and error when i try to compiled. Some one can help me to solve this problem...
