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Normally, to control a LCD module (4 bit mode) using a MCU such as PIC16F84, it will take up 6 I/O pins. In normal applications, this will leave you with too little I/O pins left.
By using a 74LS174 shift register as shown in, you'll only need 2 I/O pins to control a LCD module.
The author only showed an example program written in assembly language.
Is there anybody out there who knows how to write the program using PIC Basic Pro compiler instead? The PIC Basic Pro Compiler manual only shows you how to control a LCD module if it is connected to 6 I/O pins.
Any help offered will be appreciated very much.
By using a 74LS174 shift register as shown in, you'll only need 2 I/O pins to control a LCD module.
The author only showed an example program written in assembly language.
Is there anybody out there who knows how to write the program using PIC Basic Pro compiler instead? The PIC Basic Pro Compiler manual only shows you how to control a LCD module if it is connected to 6 I/O pins.
Any help offered will be appreciated very much.