char_lcd.rar_430_430 L_430 LCD_lcd 430

whats this? ----------- its a simple example project for the MSP430 series MCU and the GCC port of the mspgcc project. the project contains a makefile and uses assembler and C sources. it shows a clock on an character LCD. this example shows the following features: - how to use a character LCD. o download font with custom characters o it contains a reusable LCD C-module - how to use (wakeup) interrupts in C o sync foreground with interrupt by using the lowpower modes - use uprintf to print formated strings and do a printf emulation that prints to the LCD. - using the Timer_A as realtime clock - makefile o compile and link o convert to intel hex format o generate a listing with mixed C / assembly required hardware ----------------- - a MSP430F1121 or larger device (any from the F1x series) - any character type display with a HD44780 controler or compatible (e.g. a KS0066 16x2 type was used for developement) connections for a four bit interface (LCD->MSP): RS -> P1.1 R/W -> P1.2 E -> P1.3 D4 -> P1.4 D5 -> P1.5 D6 -> P1.6 D7 -> P1.7 many LCD controllers run from 3 volts, but the display requires a voltage difference of more than 3 volts for the contrast. this means a negative voltage is needed on the contrast pin (usualy named VEE or VO) - watch crystal 32.768kHz - optionaly a LED on P2.5 (470 Ohms series resistor to GND) disclaimer ---------- this example is part of the mspgcc project http://mspgcc.sf.net see license.txt for details. chris