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Papers > Technology > LCD interfacing with PIC16F877
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LCD interfacing with PIC16F877 |
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Objective: The object of this lab is to assemble the hardware to interface a 20x4 LCD to the PIC via a 4-bit interface and to design a driver for the PIC in C language. Individual Contribution: Both my partner and I contributed to the team by researching the PIC and the LCD, assembling the hardware, and writing the code for the driver. Detailed Description of Tasks: Pin # Symbol Function 1 Vss Ground 2 Vcc +5V 3 Vee LCD contrast adjust 4 RS Register Select 5 R/W Read/Write 6 E Enable signal 7 DB0 Data Bus Line 8 DB1 9 DB2 10 DB3 11 DB4 12 DB5 13 DB6 14 DB7 After assembling the hardware for the lab, a driver had to written to interface the PIC and the LCD. The lcd_write_nibble function was used to write 4 bits at a time to the LCD. ... The lcd_init function initiated the LCD bye making all control line zero and by writing three to it to warm it up. |
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Title: LCD interfacing with PIC16F877
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