; Source created with Parsic Version 3.x ; at : 2009.11.26. 21:36:06 ; Project File : C:\PROGRA~1\Parsic\Projekt\Lcd_adat.PIC ; Project Version : 1.0.0 ; Created : 2009.11.26. 21:31:00 ; Last change : 2009.11.26. 21:36:04 PROCESSOR 16F876 INCLUDE P16F876.INC RADIX DEC __IDLOCS H'0100' __CONFIG _CP_OFF & _PWRTE_ON & _WDT_OFF & _BODEN_ON & _XT_OSC & _LVP_OFF & _CPD_OFF & _DEBUG_OFF ; Diverses ZERO EQU Z ; ZERO-Flag CARRY EQU C ; CARRY-Flag ; Variable ADC0 = 32 ; located in Bank 0 ADC0_HI = 33 ; located in Bank 0 LT1_FD = 34 ; located in Bank 0 TR1 = 35 ; located in Bank 0 TR1_HI = 36 ; located in Bank 0 S0 = 37 ; located in Bank 0 LT2_FD = 38 ; located in Bank 0 RAM = 39 ; located in Bank 0 SYS_TMP1 = 114 ; located in Bank 0, 1, 2, 3 SYS_TMP2 = 115 ; located in Bank 0, 1, 2, 3 SYS_TMP3 = 116 ; located in Bank 0, 1, 2, 3 SYS_TMP4 = 117 ; located in Bank 0, 1, 2, 3 SYS_TMP5 = 118 ; located in Bank 0, 1, 2, 3 SYS_TMP6 = 119 ; located in Bank 0, 1, 2, 3 SYS_TMP9 = 120 ; located in Bank 0, 1, 2, 3 SYS_TMP10 = 121 ; located in Bank 0, 1, 2, 3 SYS_WSAV = 122 ; located in Bank 0, 1, 2, 3 SYS_SSAV = 123 ; located in Bank 0, 1, 2, 3 SYS_PSAV = 124 ; located in Bank 0, 1, 2, 3 SYS_FSAV = 125 ; located in Bank 0, 1, 2, 3 ERRORLEVEL -302 ; disable warning (Bankswitching) ERRORLEVEL -306 ; disable warning (Pageswitching) ;**************************************** ;Programmanfang ;**************************************** ORG 0 CLRF STATUS ; switch to RAM-Bank 0 MOVLW HIGH SYS_INIT ; set page MOVWF PCLATH GOTO SYS_INIT ;**************************************** ;Interrupt-Adress ;**************************************** MOVWF SYS_WSAV ; save register SWAPF STATUS,W CLRF STATUS ; bank 0 MOVWF SYS_SSAV MOVFW FSR MOVWF SYS_FSAV MOVFW PCLATH MOVWF SYS_PSAV CLRF PCLATH BTFSS INTCON,T0IF ; TMR0 ? GOTO NOTMR0INT BCF INTCON,T0IF ; Interrupt quitieren BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 INCFSZ TR1,F GOTO SYS_INT_LABEL_0 INCF TR1_HI,F SYS_INT_LABEL_0 NOTMR0INT EXITINT MOVFW SYS_PSAV MOVWF PCLATH MOVFW SYS_FSAV MOVWF FSR SWAPF SYS_SSAV,W ; Register zurück MOVWF STATUS SWAPF SYS_WSAV,F SWAPF SYS_WSAV,W RETFIE ;**************************************** ; Subroutines ;**************************************** ;*************************************************** ; Read -> AN0 ;*************************************************** READ_AN0 MOVLW B'100' BSF STATUS,RP0 ; Bank 1 BCF STATUS,RP1 ; Bank 1 MOVWF ADCON1 BSF TRISA,0 BSF ADCON1,ADFM ; Right-Justified MOVLW B'11000001' ; CH0 BCF STATUS,RP0 ; Bank 0 MOVWF ADCON0 MOVLW 5 MOVWF SYS_TMP1 SYS_ADC_LABEL_0 DECFSZ SYS_TMP1,F GOTO SYS_ADC_LABEL_0 BSF ADCON0,GO ; Start convert SYS_ADC_LABEL_1 BTFSC ADCON0,GO ; ready ? GOTO SYS_ADC_LABEL_1 ; no BSF STATUS,RP0 ; Bank 1 MOVFW ADRESL BCF STATUS,RP0 ; Bank 0 MOVWF ADC0 MOVFW ADRESH MOVWF ADC0_HI MOVLW 6 BSF STATUS,RP0 ; Bank 1 MOVWF ADCON1 MOVLW B'11111111' MOVWF TRISA RETURN ;*************************************************** ; Subroutines for LB1 ;*************************************************** LCD_LB1_INIT BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 BCF PORTB,4 ; ir-register LCD_LB1_L1 CALL LCD_LB1_OUT4 DECFSZ SYS_TMP1,F GOTO LCD_LB1_L1 MOVFW PORTB ANDLW H'F0' IORLW B'0011' ; Function Set MOVWF PORTB BSF PORTB,5 ; write GOTO $+1 BCF PORTB,5 BSF SYS_TMP1,5 ; wait LCD_LB1_L2 CALL LCD_LB1_OUT4 DECFSZ SYS_TMP1,F GOTO LCD_LB1_L2 BSF PORTB,5 ; write GOTO $+1 BCF PORTB,5 CALL LCD_LB1_OUT4 BSF PORTB,5 ; write GOTO $+1 BCF PORTB,5 CALL LCD_LB1_OUT4 BCF PORTB,0 ; 4-Bit Interface BSF PORTB,5 ; write GOTO $+1 BCF PORTB,5 CALL LCD_LB1_OUT4 MOVLW B'00101000' ; Function Set 4-Bit,2-Lines CALL LCD_LB1_OUT MOVLW B'00001100' ; Display on, Cursor off, Blink off CALL LCD_LB1_OUT MOVLW B'00000110' ; Entrymode set CALL LCD_LB1_OUT LCD_LB1_CLR BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 BCF PORTB,4 ; ir-register MOVLW B'00000001' ; Display clear CALL LCD_LB1_OUT BSF SYS_TMP1,5 ; wait LCD_LB1_L3 CALL LCD_LB1_OUT4 DECFSZ SYS_TMP1,F GOTO LCD_LB1_L3 GOTO LCD_LB1_OUT4 ;*************************************************** LCD_LB1_GOTOXY BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 BCF PORTB,4 ; ir-register MOVLW H'40' BTFSC SYS_TMP2,0 ; Ypos ADDWF SYS_TMP1,F MOVLW D'20' BTFSC SYS_TMP2,1 ; Ypos ADDWF SYS_TMP1,F BSF SYS_TMP1,7 ; select dd-ram GOTO LCD_LB1_OUT1 ;*************************************************** LCD_LB1_WRITESTR BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 BSF PORTB,4 ; dd-ram LCD_LB1_WRITESTR1 CALL LCD_LB1_CHAROUT BSF INTCON,GIE ANDLW H'FF' ; last is zero BTFSC STATUS,ZERO RETURN MOVWF SYS_TMP1 MOVLW HIGH LCD_LB1_OUT1 ; set page MOVWF PCLATH CALL LCD_LB1_OUT1 INCFSZ SYS_TMP4,F ; next char GOTO LCD_LB1_WRITESTR1 INCF SYS_TMP5,F ; next page GOTO LCD_LB1_WRITESTR1 LCD_LB1_CHAROUT BCF INTCON,GIE MOVFW SYS_TMP5 MOVWF PCLATH MOVFW SYS_TMP4 MOVWF PCL ;*************************************************** LCD_LB1_DEZO10000 MOVLW LOW 10000 MOVWF SYS_TMP1 MOVLW HIGH 10000 MOVWF SYS_TMP2 CALL LCD_LB1_CONVERTDEZ MOVF SYS_TMP9,F BTFSS STATUS,ZERO GOTO LCD_LB1_DEZO1000 CALL LCD_LB1_CHECKNULL LCD_LB1_DEZO1000 MOVLW LOW 1000 MOVWF SYS_TMP1 MOVLW HIGH 1000 MOVWF SYS_TMP2 CALL LCD_LB1_CONVERTDEZ MOVF SYS_TMP9,F BTFSS STATUS,ZERO GOTO LCD_LB1_DEZO100 CALL LCD_LB1_CHECKNULL LCD_LB1_DEZO100 MOVLW LOW 100 MOVWF SYS_TMP1 CLRF SYS_TMP2 CALL LCD_LB1_CONVERTDEZ MOVF SYS_TMP9,F BTFSS STATUS,ZERO GOTO LCD_LB1_DEZO10 CALL LCD_LB1_CHECKNULL LCD_LB1_DEZO10 MOVLW LOW 10 MOVWF SYS_TMP1 CLRF SYS_TMP2 CALL LCD_LB1_CONVERTDEZ MOVF SYS_TMP9,F BTFSS STATUS,ZERO GOTO LCD_LB1_DEZO1 CALL LCD_LB1_CHECKNULL LCD_LB1_DEZO1 MOVLW 48 ADDWF SYS_TMP4,W GOTO LCD_LB1_WRITECHAR ;*************************************************** LCD_LB1_CONVERTDEZ MOVF SYS_TMP9,F BTFSS STATUS,ZERO DECF SYS_TMP9,F CLRF SYS_TMP6 LCD_LB1_CONVERTDEZ2 INCF SYS_TMP6,F MOVFW SYS_TMP1 SUBWF SYS_TMP4,F MOVFW SYS_TMP2 BTFSS STATUS,CARRY INCFSZ SYS_TMP2,W SUBWF SYS_TMP5,F BTFSC STATUS,CARRY GOTO LCD_LB1_CONVERTDEZ2 MOVFW SYS_TMP2 ADDWF SYS_TMP5,F MOVFW SYS_TMP1 ADDWF SYS_TMP4,F BTFSC STATUS,CARRY INCF SYS_TMP5,F DECF SYS_TMP6,W BTFSS STATUS,ZERO BSF SYS_TMP10,0 RETURN ;*************************************************** LCD_LB1_CONVERTHEX ANDLW 15 MOVWF SYS_TMP1 MOVLW 48 ADDWF SYS_TMP1,F MOVLW 58 SUBWF SYS_TMP1,W BTFSS STATUS,CARRY GOTO $+3 MOVLW 7 ADDWF SYS_TMP1,F MOVFW SYS_TMP1 ;*************************************************** LCD_LB1_WRITECHAR BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 BSF PORTB,4 ; dd-ram ;*************************************************** LCD_LB1_OUT MOVWF SYS_TMP1 ; store LCD_LB1_OUT1 CLRF SYS_TMP3 ; LCDWriteStr (first nibble) LCD_LB1_OUT2 SWAPF SYS_TMP1,W ;high nibble LCD_LB1_OUT3 ANDLW H'0F' ; mask MOVWF SYS_TMP2 ; store BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 MOVFW PORTB ; load port ANDLW H'F0' ; mask IORWF SYS_TMP2,W ; add cmd MOVWF PORTB ; out BSF PORTB,5 ; E high GOTO $+1 BCF PORTB,5 ; E low BTFSC SYS_TMP3,3 ; ready ? GOTO LCD_LB1_OUT4 ; yes BSF SYS_TMP3,3 ; second nibble MOVFW SYS_TMP1 GOTO LCD_LB1_OUT3 ; next nibble LCD_LB1_OUT4 LCD_LB1_OUTV DECFSZ SYS_TMP3,F GOTO LCD_LB1_OUTV RETURN ;*************************************************** LCD_LB1_CHECKNULL BTFSS STATUS,ZERO DECF SYS_TMP9,F MOVWF SYS_TMP1 BTFSS STATUS,ZERO BSF SYS_TMP10,0 MOVLW 48 BTFSC SYS_TMP10,0 ADDWF SYS_TMP1,f MOVLW 32 BTFSS SYS_TMP10,0 ADDWF SYS_TMP1,F MOVFW SYS_TMP1 GOTO LCD_LB1_WRITECHAR ; 00F5 ;**************************************** ;Initialisierung ;**************************************** SYS_INIT MOVLW B'00100000' MOVWF INTCON ; Set output before direction BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 MOVLW B'00000000' MOVWF PORTA MOVLW B'00000000' MOVWF PORTB MOVLW B'00000000' MOVWF PORTC MOVLW 143 BSF STATUS,RP0 ; Bank 1 MOVWF OPTION_REG MOVLW 6 ; all Digital MOVWF ADCON1 ; Richtung setzen MOVLW B'11111111' MOVWF TRISA MOVLW B'11000000' MOVWF TRISB MOVLW B'11111111' MOVWF TRISC ; init vars ; Clear RAM BCF STATUS,IRP MOVLW 32 MOVWF FSR CR1 CLRF INDF INCF FSR,F BTFSS FSR,7 GOTO CR1 BSF FSR,5 CR2 CLRF INDF INCF FSR,F MOVLW H'F0' SUBWF FSR,W BTFSS STATUS,ZERO GOTO CR2 BSF STATUS,IRP MOVLW 16 MOVWF FSR CR3 CLRF INDF INCF FSR,F MOVLW H'70' SUBWF FSR,W BTFSS STATUS,ZERO GOTO CR3 MOVLW 144 MOVWF FSR CR4 CLRF INDF INCF FSR,F MOVLW H'F0' SUBWF FSR,W BTFSS STATUS,ZERO GOTO CR4 ;*************************************************** ; Init LCD -> LB1 ;*************************************************** CALL LCD_LB1_INIT BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 CLRF TMR0 BCF INTCON,T0IF BSF INTCON,GIE ; Interrupt freigeben ;********************************** ;******* Haupt-Programm *********** ;********************************** MAIN CALL READ_AN0 ;*************************************************** ; LCD -> LT1 ;*************************************************** ; test of positiv edge BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 BTFSC LT1_FD,0 GOTO LABEL_LT1_SETFD BTFSS S0,0 GOTO LABEL_LT1_SETFD MOVLW 5 MOVWF SYS_TMP1 MOVLW 0 MOVWF SYS_TMP2 MOVLW HIGH LCD_LB1_GOTOXY ; set page MOVWF PCLATH CALL LCD_LB1_GOTOXY BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 MOVFW ADC0 MOVWF SYS_TMP4 MOVFW ADC0_HI MOVWF SYS_TMP5 BCF SYS_TMP10,0 CLRF SYS_TMP9 MOVLW HIGH LCD_LB1_DEZO10000 ; set page MOVWF PCLATH CALL LCD_LB1_DEZO10000 BCF PCLATH,3 ; Page 0 BCF PCLATH,4 ; Page 0 LABEL_LT1_SETFD BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 BTFSS S0,0 GOTO LABEL_LT1_SETFD2 BSF LT1_FD,0 GOTO LABEL_LT1_END LABEL_LT1_SETFD2 BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 BCF LT1_FD,0 LABEL_LT1_END ;*************************************************** ; Timer -> TR1 ;*************************************************** MOVLW 0 ; Test auf >= SUBWF TR1_HI,W ;F-W -> W BTFSS STATUS,ZERO GOTO LABEL_TR1_CHECK MOVLW 195 SUBWF TR1,W ;F-W -> W LABEL_TR1_CHECK BTFSS STATUS,CARRY GOTO LABEL_TR1_ENDE LABEL_TR1_RESET MOVLW 0 ; Test auf >= SUBWF TR1_HI,F ;F-W -> F MOVLW 195 SUBWF TR1,F ;F-W -> F BTFSS STATUS,CARRY DECF TR1_HI,F LABEL_TR1_SET ; toggel output BTFSC S0,0 GOTO LABEL_TR1_CLR BSF S0,0 GOTO LABEL_TR1_ENDE LABEL_TR1_CLR BCF S0,0 LABEL_TR1_ENDE ;*************************************************** ; LCD -> LT2 ;*************************************************** ; test of positiv edge BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 BTFSC LT2_FD,0 GOTO LABEL_LT2_SETFD BTFSS S0,0 GOTO LABEL_LT2_SETFD MOVLW 1 MOVWF SYS_TMP1 MOVLW 0 MOVWF SYS_TMP2 MOVLW HIGH LCD_LB1_GOTOXY ; set page MOVWF PCLATH CALL LCD_LB1_GOTOXY MOVLW LOW TAB_LT2 MOVWF SYS_TMP4 MOVLW HIGH TAB_LT2 MOVWF SYS_TMP5 MOVLW HIGH LCD_LB1_WRITESTR ; set page MOVWF PCLATH CALL LCD_LB1_WRITESTR BCF PCLATH,3 ; Page 0 BCF PCLATH,4 ; Page 0 LABEL_LT2_SETFD BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 BTFSS S0,0 GOTO LABEL_LT2_SETFD2 BSF LT2_FD,0 GOTO LABEL_LT2_END LABEL_LT2_SETFD2 BCF STATUS,RP0 ; Bank 0 BCF STATUS,RP1 ; Bank 0 BCF LT2_FD,0 LABEL_LT2_END ;**************************************** GOTO MAIN TAB_LT2 RETLW 65 ; A RETLW 68 ; D RETLW 65 ; A RETLW 84 ; T RETLW 0 ; end END