Microchip Technology MCP1252, Руководство пользователя

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00016R1.asm Source Code
©
2005 Microchip Technology Inc. DS51551A-page 22
movwf led_hi_off ;add the complement of on time to the window time
comf led_hi_off, f
movlw period
addwf led_hi_off, f
;
movlw led_medhi_on ;calculate off times based on time remaining in
PWM period
movwf led_medhi_off ;add the complement of on time to the window
time
comf led_medhi_off, f
movlw period
addwf led_medhi_off, f
;
movlw led_med_on ;calculate off times based on time remaining in
PWM period
movwf led_med_off ;add the complement of on time to the window time
comf led_med_off, f
movlw period
addwf led_med_off, f
;
movlw led_low_on ;calculate off times based on time remaining in
PWM period
movwf led_low_off ;add the complement of on time to the window time
comf led_low_off, f
movlw period
addwf led_low_off, f
;
movf GPIO, w ;read port before entering sleep mode
sleep
wake btfss GPIO, button ;only allow a low to bring PIC out of sleep
goto inc_mode
movlw 0x20
call delay
movf GPIO, w
sleep
;
inc_mode incf mode, f ;it was a pin change, determine new mode
;determine current mode
mode_select bcf flag, new_mode ;clear new mode flag
;
movlw 0x01
subwf mode, w
btfsc STATUS, Z
goto led_off
;
movlw 0x02
subwf mode, w
btfsc STATUS, Z
goto led_low
;
movlw 0x03
subwf mode, w
btfsc STATUS, Z
goto led_med
;
TABLE C-1: 00016R1.ASM (CONTINUED)