Subject:
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Handyboard LCD
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 3 Jul 1996 07:20:58 GMT
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Original-From:
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Stefano Nardone <stefanon@synapsisSAYNOTOSPAM.it>
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Viewed:
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1652 times
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Please, anyone has any suggestion to solve this problem?
I haven't used the LCD display in the parts list, but one LCD 20 char by 4
rows... why? 8^) well, I've got 3 of this around and to buy another seemed
not so good idea! This display doesn't "display" anything! The board beeps
at the boot, IC talks with the board and I can have results for 2+2; etc...
but I can see only two rows of dark character boxes and two clear rows,
alterned. The LCD is labeled EPSON - P300014400 - SANTIS1 and uses the
Hitachi chip HD44780A00 (plus 4 HD44100). I tried to change this LCD with
another, an Hitachi LM0442 (20 chars x 4 rows, same chips), and I get the
same result. A small 8char x 1 row LCD shows the first characters of "Handy
Board..." Is there a way to use an LCD of the type of mine? Please don't
tell me to buy another... they are expensive here! 8^(
bye
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Stefano Nardone | email: stefanon@synapsis.it |
| http://www.synapsis.it/uw/stefanon/ |
| tel +39 81 7142222 | fax +39 81 645130 |
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Message has 1 Reply:
 | | Re: Handyboard LCD
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| there are two assemble-time constants LCD_ROWS and LCD_COLS that can be changed to build new versions of the pcode_hb.s19 file for different LCDs. but is sounds like your 20x4 display is incompatible altogether---you should see something. i would (...) (28 years ago, 3-Jul-96, to lugnet.robotics.handyboard)
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