;****************************************************************************** ; This file is a basic template for assembly code for a PIC18F4550. Copy * ; this file into your project directory and modify or add to it as needed. * ; * ; The PIC18FXXXX architecture allows two interrupt configurations. This * ; template code is written for priority interrupt levels and the IPEN bit * ; in the RCON register must be set to enable priority levels. If IPEN is * ; left in its default zero state, only the interrupt vector at 0x008 will * ; be used and the WREG_TEMP, BSR_TEMP and STATUS_TEMP variables will not * ; be needed. * ; * ; Refer to the MPASM User's Guide for additional information on the * ; features of the assembler. * ; * ; Refer to the PIC18FXX50/XX55 Data Sheet for additional * ; information on the architecture and instruction set. * ; * ;****************************************************************************** ; * ; Filename: PlantillaASM * ; Date: 12/01/11 * ; File Version: 1.0 * ; * ; Author: Ing. Alejandro Vicente Lugo Silva * ; Company: Acad. Computación ICE - ESIME Zac. * ; * ;****************************************************************************** ; * ; Files required: P18F4550.INC * ; * ;****************************************************************************** LIST P=18F4550, F=INHX32 ;directive to define processor #include ;processor specific variable definitions ;****************************************************************************** ;Configuration bits CONFIG PLLDIV = 5 ;(20 MHz crystal on PICDEM FS USB board) CONFIG CPUDIV = OSC1_PLL2 CONFIG USBDIV = 2 ;Clock source from 96MHz PLL/2 CONFIG FOSC = HSPLL_HS CONFIG FCMEN = OFF CONFIG IESO = OFF CONFIG PWRT = OFF CONFIG BOR = ON CONFIG BORV = 3 CONFIG VREGEN = ON ;USB Voltage Regulator config WDT = OFF config WDTPS = 32768 config MCLRE = ON config LPT1OSC = OFF config PBADEN = OFF ;NOTE: modifying this value here won't have an effect ;on the application. See the top of the main() function. ;By default the RB4 I/O pin is used to detect if the ;firmware should enter the bootloader or the main application ;firmware after a reset. In order to do this, it needs to ;configure RB4 as a digital input, thereby changing it from ;the reset value according to this configuration bit. config CCP2MX = ON config STVREN = ON config LVP = OFF config ICPRT = OFF ; Dedicated In-Circuit Debug/Programming config XINST = OFF ; Extended Instruction Set config CP0 = OFF config CP1 = OFF config CP2 = OFF config CP3 = OFF config CPB = OFF config CPD = OFF config WRT0 = OFF config WRT1 = OFF config WRT2 = OFF config WRT3 = OFF config WRTB = OFF ; Boot Block Write Protection config WRTC = OFF config WRTD = OFF config EBTR0 = OFF config EBTR1 = OFF config EBTR2 = OFF config EBTR3 = OFF config EBTRB = OFF ;****************************************************************************** ;Variable definitions CONTADOR_H equ 0x30 CONTADOR_L equ 0x34 Tar_U equ 0x31 Tar_D equ 0x32 Tar_C equ 0x33 Vuelta equ 0x35 ;****************************************************************************** ;Reset vector ; This code will start executing when a reset occurs. ORG 0x0000 goto Main ;go to start of main code ;**************************************************************** ORG 0x0008 goto HighPr_ISR ;go to start of ISR ;**************************************************************** ; ORG 0x0018 ; goto LowPr_ISR ;go to start of ISR ;**************************************************************** ; Start of High Priority ISR ; rutina de servicio de interrupcion prioridad alta **************************************************************** HighPr_ISR INCF LATD RETFIE FAST ;**************************************************************** ; Start of Low Priority ISR ; Rutina de servicio de interrupcion prioridad baja **************************************************************** ; ORG 0x1018 LowPr_ISR bsf PORTA,4 retfie ;**************************************************************** ;****************************************************************************** ;Start of main program ; The main program code is placed here. ORG 0x1000 Main ; *** main code goes here ** call C_PUERTOS call C_VUELTAS INICIO btfsc PORTC,2 goto DIA btfsc PORTC,4 goto NOCHE goto INICIO C_VUELTAS bcf RCON,IPEN movlw 0x50 movwf INTCON bcf INTCON2,INTEDG0 movlw 0x0F movwf Vuelta bsf INTCON,GIE return C_PUERTOS movlw 0x0F movwf ADCON1 clrf TRISA clrf TRISD setf TRISC setf TRISB clrf LATA clrf LATD return DIA movlw 0x07 movwf Tar_U movff Tar_U,LATD D1 btfss PORTC,5 goto D1 D4 movlw d'12' movwf CONTADOR_H movlw d'4' movwf CONTADOR_L bsf LATA,5 D2 call TIMER decfsz CONTADOR_H goto D2 bcf LATA,5 D3 call TIMER decfsz CONTADOR_L goto D3 goto D4 NOCHE movlw 0x15 movwf Tar_U movff Tar_U,LATD N1 btfss PORTC,5 goto D1 N4 movlw d'12' movwf CONTADOR_H movlw d'4' movwf CONTADOR_L bsf LATA,5 N2 call TIMER decfsz CONTADOR_H goto N2 bcf LATA,5 N3 call TIMER decfsz CONTADOR_L goto N3 goto N4 TIMER movlw 0x08 movwf T0CON movlw 0xD1 movwf TMR0H movlw 0x20 movwf TMR0L bcf INTCON,2 bsf T0CON,7 T1 btfss INTCON,2 goto T1 return ; end of main ;****************************************************************************** ; Start of ;****************************************************************************** ;****************************************************************************** ;****************************************************************************** ;End of program END