OK! at last Nokia 1100 display working with a PIC writen in Microchip C on demand. I have had loads of emails of people asking me to publish this online, so here it is.The controller is PCF8814 its is 'not' I2C. The chip is I2C capable but this LCD does not use that mode. the VDDI input can be used if the I/O levels are different than the LCD supply voltage. as per 1100's service manual, VDDI id 1.8v but the LCD supply voltage is 2.8v. in our case both the voltages are the same. The Led driver as per the manual runs with a 4.7ohm resistor at 3.6v. |
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The source code can be downloaded here. Updated 02.05.2010, there were 2 lines of code missing. The instruction used to configure the internal oscillator OSCCON = 0x72; //8MHz clock
while(!OSCCONbits.IOFS); //wait for clock to be stable |
Page featured online at: http://hackaday.com/2008/06/13/nokia-1100-lcd-pic-controller-interface/
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