Microchip Technology MCP1252, Руководство пользователя

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00016R1.asm Source Code
©
2005 Microchip Technology Inc. DS51551A-page 20
TABLE C-1: 00016R1.ASM
;**********************************************************************
; *
; Filename: 00016R1.asm *
; Date: 31aug04 *
; File Version: pp1 *
; *
; Author: M Waldron *
; Company: MCHP *
; 10f204/ 10f206 PWM to control LED driver *
; *
;**********************************************************************
; *
; Files required: *
; *
; *
; *
;**********************************************************************
; *
; Notes: Changed file name, added led_medhi routine, *
; adjusted intensity of various modes. PB 3/29/05 *
; *
; *
; *
; *
;**********************************************************************
list p=10f206 ; list directive to define processor
#include <p10f206.inc> ; processor specific variable definitions
__CONFIG _CP_OFF & _WDT_OFF & _MCLRE_OFF & _IntRC_OSC
; ‘__CONFIG’ directive is used to embed configuration data within .asm file.
; The labels following the directive are located in the respective .inc file.
; See respective data sheet for additional information on configuration word.
;constants
;increase led_xxx_on to increase intensity ( value must be less than period value)
;increase period to reduce PWM frequency and increase PWM resolution
led_hi_on = 0x16 ;on loops for high brightness mode
led_hi_off = 0x11 ;off loops for high brightness mode, value will be calculated
by the program (10)
led_medhi_on = 0x08 ;on loops for medium_high brightness mode
led_medhi_off = 0x11 ;off loops for high brightness mode (11)
led_med_on = 0x06 ;on loops for medium brightness mode
led_med_off = 0x11 ;off loops for high brightness mode (11)
led_low_on = 0x05 ;on loops for low brightness mode
led_low_off = 0x12 ;off loops for high brightness mode (12)
period = 0x0E ;total loops per PWM period
max_time = 0xff ;on time before unit swithces back to sleep
;variables
mode = 0x13 ;current mode ( high, med, lo )
counter = 0x14 ;hi and low time counter
debounce = 0x15 ;debounce counter
flag = 0x16 ;debounce control flags