Tried to search the forums but didn't seem to want to let me to , I'm trying connect a LCD to my 16F627 and have set to 4Mhz with an external Xtal and I know my LCD works I tested in 8bit mode connected to my computer LPT port and the screen dose not want to work with the PIC just black blocks on top row, I have a LED connected on RA1 and programed to blink so I know the PIC is working, I checked my connects and they are right as far as I can see, just used the default in Flowcode connected to port B since there are not enough pins on port A the connection is as so E=RB5, RS=B4 , D7= RB3 , D6= RB2 , D5 = RB1 , D4 = RB0
here is the datasheet for my screen http://www.goldentek.com/english/pdf/Do ... L1B%20.pdf
I checked the datasheet on the LCD e-block and have my'n connected the same any one else have had this problem?
LCD code not working?
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Steve
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Re: LCD code not working?
2 quick things to try:
1) write a small LED flasher program to make sure your processor is running at the speed you have set it.
2) make sure LVP is disabled as this will prevent one of the pins on portb from working as an i/o line.
1) write a small LED flasher program to make sure your processor is running at the speed you have set it.
2) make sure LVP is disabled as this will prevent one of the pins on portb from working as an i/o line.
Re: LCD code not working?
Thank you!!!! It works now, it was the the low voltage programing config, disabled and now works perfectly , just had to double check my programmer that it does high voltage programming so I can rewrite the chip and all is fine! 