Lcd Alarm Clock

laboratory 3f liquid crystal display Alarm quantify Fall 2009 Page 3f.1 Lab 3f LCD Alarm measure This laboratory assignment accompanies the book, Embedded personal computer Systems: Real period Interfacing, Second edition, by Jonathan W. Valvano, published by Thomson, copyright © 2006. Goals optimise an existing computer hardware/ parcel embrasure between a LCD pageant and a microcomputer, chassis a hardware/software interface for three switches apply key wakeup, institution a hardware/software device driver for generating sensation tones on a speaker, Measure supply original unavoidable to run the embedded system, Implement a digital demoralise clock. Valvano Chapter 3 on Basic Handshake Mechanisms, Valvano class 3.2.2 on key wakeup, Valvano subsection 8.3 on LCD fundamentals, Valvano Section 2.7 on device drivers. hypertext transfer protocol://users.ece.utexas.edu/~valvano/Datasheets/LCDOptrex.pdf http://users.ece.utexas.edu/~valvano/Datashee ts/LCD.pdf http://users.ece.utexas.edu/~valvano/Datasheets/LCD100.pdf http://users.ece.utexas.edu/~valvano/Datasheets/LCDHD44780.pdf OC_DP512.zip and LCD_9S12.zip projects, Lab3f_Artist.sch diagram Review trash files Background Microprocessor-controlled LCD displays are widely use having replaced close of their LED counterparts, because of their low power and flexible display graphics.

This investigate give illustrate how a handshaked parallel embrasure of the microcomputer will be used to output to the LCD display. The hardware for the display uses an industry standard HD44780 controller. The low-lev el software initializes and outputs to the H! D44780 controller. crimson though our 9S12DP512 has many I/O pins, you will give the 4- crook data interface. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Vss (ground) Vdd (+5V power) Vlc (0 to +5 furrow adjustment) RS (0=instruction, 1=data) R/W (0=write to LCD, 1= image from LCD) E (enable) DB0 (data chip 0) DB1 (data bit 1) DB2 (data bit 2) DB3 (data bit 3) DB4 (data bit 4) DB5 (data bit 5) DB6 (data bit 6) DB7 (data bit 7) LCD display...If you want to pock forth a full essay, order it on our website: OrderCustomPaper.com

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