;********************************************************************** ; * ; Filename: MagiDavid AL101 - Lab 003.asm * ; Date: 10/21/2011 * ; File Version: 1.0 * ; * ; Author: David Hoffman * ; Company: NeoLoch, LLC * ; * ; * ;********************************************************************** ; * ; Files required: P16F882.INC * ; * ;********************************************************************** ; * ; License: Creative Commons * ; Attribution-NonCommercial-ShareAlike 3.0 Unported License. * ; http://creativecommons.org/licenses/by-nc-sa/3.0 * ; * ;********************************************************************** LIST p=16F882 ; list directive to define processor #INCLUDE ; processor specific variable definitions __CONFIG _CONFIG1, _LVP_OFF & _FCMEN_OFF & _IESO_OFF & _BOR_OFF & _CPD_OFF & _CP_OFF & _MCLRE_ON & _PWRTE_ON & _WDT_OFF & _INTRC_OSC_NOCLKOUT __CONFIG _CONFIG2, _WRT_OFF & _BOR40V ; '__CONFIG' directive is used to embed configuration word within .asm file. ; The lables following the directive are located in the respective .inc file. ; See data sheet for additional information on configuration word settings. ; Note that the _DEBUG_ON is changed by selecting a debugger or programmer. ; There isn't much advantage to setting it in the code. #DEFINE LED1_RED PORTA,0 #DEFINE LED1_GREEN PORTA,1 #DEFINE LED_RLED_GREEN 0X00 #DEFINE LED_GLED_GREEN 0XFF #DEFINE LED_RLED_RED 0XFF #DEFINE LED_GLED_RED 0X00 #DEFINE LED_RLED_YELLOW 0XF1 #DEFINE LED_GLED_YELLOW 0XEF #DEFINE LED_RLED_ORANGE 0XB5 #DEFINE LED_GLED_ORANGE 0X81 LED_VAR UDATA_SHR LED_LOOP RES 1 LED_LOOP2 RES 1 LED_CLR_COUNT RES 1 LED_TEMP_R RES 1 LED_TEMP_G RES 1 ;------------------------------------------------------------------------------ ; RESET VECTOR ;------------------------------------------------------------------------------ RESET_VECTOR CODE 0x0000 goto START ; When using debug header, ICD2 may not stop ; on instruction 0 during reset. ;------------------------------------------------------------------------------ ; CONFIGURATION CODE ;------------------------------------------------------------------------------ ;START ORG 0X05 MAIN_PROG CODE START BANKSEL PORTA CLRF PORTA BANKSEL ANSEL CLRF ANSEL BANKSEL TRISA MOVLW 0X00 MOVWF TRISA CLRF LED_CLR_COUNT CLRF LED_LOOP ;------------------------------------------------------------------------------ ; MAIN CODE ;------------------------------------------------------------------------------ MAIN BANKSEL PORTA CALL LED_COLOR_YELLOW CALL LED_UPDATE DECFSZ LED_LOOP,F GOTO $-2 DECFSZ LED_LOOP2,F GOTO $-4 CALL LED_COLOR_RED CALL LED_UPDATE DECFSZ LED_LOOP,F GOTO $-2 DECFSZ LED_LOOP2,F GOTO $-4 CALL LED_COLOR_GREEN CALL LED_UPDATE DECFSZ LED_LOOP,F GOTO $-2 DECFSZ LED_LOOP2,F GOTO $-4 CALL LED_COLOR_ORANGE CALL LED_UPDATE DECFSZ LED_LOOP,F GOTO $-2 DECFSZ LED_LOOP2,F GOTO $-4 GOTO MAIN ;------------------------------------------------------------------------------ ; LED DISPLAY UPDATE ;------------------------------------------------------------------------------ LED_UPDATE INCF LED_CLR_COUNT,F CALL LED1_RED_OFF MOVF LED_TEMP_R,W SUBWF LED_CLR_COUNT,W BTFSS STATUS,C CALL LED1_RED_ON CALL LED1_GREEN_OFF MOVF LED_TEMP_G,W SUBWF LED_CLR_COUNT,W BTFSS STATUS,C CALL LED1_GREEN_ON RETURN ;------------------------------------------------------------------------------ ; LED COLOR DATA - RED ;------------------------------------------------------------------------------ LED_COLOR_RED MOVLW LED_RLED_RED MOVWF LED_TEMP_R MOVLW LED_GLED_RED MOVWF LED_TEMP_G RETURN ;------------------------------------------------------------------------------ ; LED COLOR DATA - GREEN ;------------------------------------------------------------------------------ LED_COLOR_GREEN MOVLW LED_RLED_GREEN MOVWF LED_TEMP_R MOVLW LED_GLED_GREEN MOVWF LED_TEMP_G RETURN ;------------------------------------------------------------------------------ ; LED COLOR DATA - ORANGE ;------------------------------------------------------------------------------ LED_COLOR_ORANGE MOVLW LED_RLED_ORANGE MOVWF LED_TEMP_R MOVLW LED_GLED_ORANGE MOVWF LED_TEMP_G RETURN ;------------------------------------------------------------------------------ ; LED COLOR DATA - YELLOW ;------------------------------------------------------------------------------ LED_COLOR_YELLOW MOVLW LED_RLED_YELLOW MOVWF LED_TEMP_R MOVLW LED_GLED_YELLOW MOVWF LED_TEMP_G RETURN ;------------------------------------------------------------------------------ ; TURN LEDs ON OR OFF ;------------------------------------------------------------------------------ LED1_RED_ON BSF LED1_RED RETURN LED1_RED_OFF BCF LED1_RED RETURN LED1_GREEN_ON BSF LED1_GREEN RETURN LED1_GREEN_OFF BCF LED1_GREEN RETURN END