TAILIEUCHUNG - Interfacing PIC Microcontrollers 15

Interfacing PIC Microcontrollers 15. Explore in detail microcontroller interfacing techniques using the popular PIC 16F877 Work through step-by-step examples interactively using circuit simulation software, supplied as assembly source code Gain the knowledge of a wide range of peripheral devices such as keyboards, displays, sensors and drives and serial communication with other processors, memory and more Use interactive simulation software to design and test circuits. | Interfacing PIC Microcontrollers b3 BTFSC PORTC 6 button 3 GOTO bs no MOVLW 3 yes MOVWF Char MOVLW 03 MOVWF RETURN Kval bs BTFSC PORTC 7 button - GOTO rowd no MOVLW MOVWF - Char yes MOVWF RETURN Oper rowd BSF PORTC 2 select row D BCF PORTC 3 CALL One ms BTFSC PORTC 4 button C GOTO b0 no MOVLW c yes MOVWF Char MOVWF RETURN Oper b0 BTFSC PORTC 5 button 0 GOTO be no MOVLW 0 yes MOVWF Char MOVLW 00 MOVWF RETURN Kval be BTFSC PORTC 6 button GOTO bp no MOVLW yes MOVWF RETURN Char bp BTFSC PORTC 7 button GOTO done no MOVLW yes MOVWF Char MOVWF RETURN Oper done BSF PORTC 3 clear last row CLRF RETURN Char character code 0 Write display . disout MOVF Kcode W Load the code BSF Select RS Select data mode CALL RETURN Send and send code Process operations calc MOVF Oper W check for add MOVWF Temp load input op code MOVLW load plus code SUBWF Temp compare BTFSC STATUS Z and check if same GOTO add yes jump to op MOVF Oper W check for subtract MOVWF Temp MOVLW SUBWF - Temp BTFSC STATUS Z GOTO sub MOVF Oper W check for multiply MOVWF Temp MOVLW x SUBWF Temp BTFSC STATUS Z GOTO mul MOVF Oper W check for divide MOVWF Temp MOVLW SUBWF Temp BTFSC STATUS Z GOTO div GOTO scan rescan if key invalid Program Continued 126 Calculate Compare Capture Calclate results from 2 input numbers add MOVF Num1 W get first number ADDWF Num2 W add second MOVWF Result and store result GOTO out re s display result sub BSF STATUS C Negative detect flag MOVF Num2 W get first number SUBWF Num1 W subtract second MOVWF Result and store result BTFSS STATUS C answer negative GOTO minus yes minus re sult GOTO out re s display result minus MOVLW 1 - load minus sign BSF Select RS Select data mode CALL Send and send symbol COMF Result invert all bits INCF Result add 1 GOTO out re s display result mul MOVF Num1 W get first number CLRF Result total to Z addl ADDWF Result add to total DECFSZ Num2 num2 times and GOTO addl repeat if not done GOTO outres done display result div CLRF Result total to Z MOVF Num2 W get .

TỪ KHÓA LIÊN QUAN
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.