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Banned Registered Member #110
Joined: Fri Feb 10 2006, 12:23AM
Location: Banned City
Posts: 85
[size]Worked for me. Got Letter 'A' to display. If it initialized and you see a blinking cursor that is not randomly and rapidly moving around, you could be just one step away from it working. Is your MCLR line tied HIGH? Are you connecting the LCD pins in the order of the code? Look at this:
I used the same values but had to connect the LCD i/o lines as the LCD needs them: RS first (pin 5), RW second (pin 4), and Enable third (pin 6). If I connected PortA, RW to LCD pin 4, it initializes but does not display 'A'.
This does not effect the LCD, but the delays are still running long. 1 milliseconds reads 1.260ms and 250 milliseconds reads 315ms, meaning an extra reapet is happening. Paypal is fine [/size]
Registered Member #295
Joined: Tue Mar 07 2006, 06:59PM
Location:
Posts: 23
[rupidist]
Any idea why reversing the pins solves the problem? seems like a wierd fix to me. i'll have to try it later today, hope it works.
[edit] after a bit of contemplating i'm confused as to what exactly you did you get the LCD to display "A",what do you mean by you connected the i/o line as the LCD needed them? is that the order in which you activated them on the PIC, or the order in which you physically connected them (ie: plug one in, then the next, then the next)
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HD44780 LCD Initialization Issues
