LML LCD datasheet, cross reference, circuit and application notes in pdf format. Hitachi Dot Matrix Liquid Crystal Display (LCD) Module was developed to .. Applicable only for replacement: LM, LM, LM, LM, LM, LM . referred to as character LCD modules) is almost always 14 pins. Table 1 shows the basic pinout. You may find that some displays have.

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Essentials Only Full Version. Initializing the display this way alwayswill prevent the display from screwing up when resets occur, and is more efficient than analyzing particular PIC register bits to determine conditions of reset, and figuring out the frailties of the LCD protocol.

(PDF) LM020L Datasheet download

Look at page 99 Example initializing port e. I usually get a series of faint grey dots in a grid where the characters are displayed. Lfd wait states after display clear.

THEN, you can issue the command to switch over to nibble mode afterward. Any help will be most appreciated. Increase your latency to initialize, IE display clear, and reset or whatever they’re called were spec’d at 1.

LCD Control pins.

Had to burn thousands of machine cycles based on 20MHz clock to wait this long! Cheers for the help Aaron.


I hope this helps Blusky. Thanks for the help I didn’t configure Port E as Digital ouputs. I’m pretty sure it’s a predecessor to a 16F84 with 4 bit transfer. Datadheet use a lcd with pic18f just like you and microchip C compiler. I am new at this but I had the same problem. I will have to look at that. I use the Optrex manual www.

Why does my PIC32 run slower than expected? Both were a bit slow on the uptake. Haven’t received registration validation E-mail?

What are good practices when using SPI? If you dont have it already download the document on the 18F it is DSB. David, Assuming you are using a standard character lcd I would suggest you check the initialization sequence carefully. I finally ran accross the answer in the microchip data dataasheet. If you havent already found the problem. The LCD doens not operate like this but if I move the bits to a different port it works. I hope this helps Blusky aspforum. I’ve tried relying on the start up delay 72 msecs to allow the LCD to self initialise.

LML Datasheet PDF –

You can use port e but it is also an analog input. Forums Posts Latest Posts. I looked at the spec sheet and it said that Port E was a digital input output port but cant get any functions to work on these pins. If anything is not just right on start-up all you will get is the boxes or dots. Debug breakpoints automatically disabled Future of PIC32 16F88 cannot set internal oscillator frequency beyond I can send you code examples if you wish. That caught me out, too. Forum Themes Elegant Mobile.


It must not only be set as output but also as digital or setting it as output is useless. When I wrote the lcd software I was in trouble too with port E, because I configured it like input, so they didn’t change state. Did you configure pins on port E as output?

(PDF) LML Datasheet PDF Download – LCD Alphanumeric 16×1

User Control Panel Log out. Any help is appreciated Cheers Aaron. I suspect there may well be a simple explanation but I’m dahasheet to find it. I didnt know that but I cleared the whole thing and made port e all outputs.

Guest Super Member Total Posts: Any other ideas what is wrong.