Itron Noritake GU256X64-312 AVR library found - Page 1
Forum section: electronics / general

author: Hydrawerk
author_rank: Super Contributor
timestamp: December 24, 2013, 09:11:59 pm
content: My friend gave me an old dot matrixNoritake ItronVFDGU256X64-312. I would like to control it with myATmega644 / Atmega32.I am looking for anAVR library.Could you recommend me any? There are some libraries provided by the manufacturer, but which one might be suitable for my display??http://www.noritake-elec.com/codeLibrary.phpI am also looking for afull datasheet. I have only a simplified one.Thank you in advance.EDIT: Download full datasheet here:https://www.eevblog.com/forum/microcontrollers/itron-noritake-gu256x64-312-avr-library-needed/?action=dlattach;attach=74715

author: Hydrawerk
author_rank: Super Contributor
timestamp: December 24, 2013, 09:26:23 pm
content: Yes, I have some experience with LCD control using ATmega32 and anAVR library made by someone else.I have tried two line LCD with HD44780 and a dot matrix lcd with HD61830.I use a HD61830 AVR library made by Ivan Sergeevhttp://vsdev.me/projects/lc7981_driver/and a HD44780 library made byPeter Fleuryand modified by Tomas Fryza...http://www.urel.feec.vutbr.cz/~fryza/downloads/lcd.zipThere might be a library for the Itron Noritake display mentioned before.

author: Crazy Ape
author_rank: Regular Contributor
timestamp: December 25, 2013, 02:02:33 am
content: While a smaller display, the technology and specifications look very similar, you might get some good info from it.https://www.spezial.com/doc/norita/gu256x16x6_300.pdf

author: dannyf
author_rank: Super Contributor
timestamp: December 25, 2013, 01:08:46 pm
content: Quotegoogle can easily track down one for you.Looks to be fairly simple: parallel bus for data / commands, and a few other pins to work with.Shouldn't be difficult to write a driver for it.

author: Hydrawerk
author_rank: Super Contributor
timestamp: December 25, 2013, 04:09:05 pm
content: Thanks, there must be previously made library somewhere... This looks a bit similar to my VFD.http://kimboricha.blogspot.kr/2013/10/noritake-itron-gu256x64-901a-vfdvacuum.html

author: jeremy
author_rank: Super Contributor
timestamp: December 29, 2013, 11:32:47 pm
content: Hi,I've dealt with a fair bit of noritake stuff, just send an email to the UK guys and they should be able to hook you up with a datasheet.Not sure about libs, the interface is so straightforward I just write my own.

author: Hydrawerk
author_rank: Super Contributor
timestamp: January 04, 2014, 12:51:18 am
content: The distributor sent me a full datasheet. Unfortunately, an AVR library for this VFD is not available, because it was introduced in 1991.

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 24, 2014, 07:48:14 pm
content: I made some first attempts.The very right column seems to be broken.http://youtu.be/DNFjZq9wDAE

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 27, 2014, 12:23:17 am
content: There is still a problem with line breaking. I will try to fix it in future. Advices are welcomed!

author: jeremy
author_rank: Super Contributor
timestamp: June 27, 2014, 01:44:19 am
content: Don't have any advice sorry, but looks beautiful!

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 30, 2014, 12:17:38 am
content: So I made some progress. Here you have the source codes for inspiration. But my VFD named GU256X64-312 was designed in 1991, you will hardly buy it nowadays.

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 30, 2014, 12:46:42 am
content: Well, this VFD AVR librarylooks promising.works.http://kimboricha.blogspot.kr/2013/10/noritake-itron-gu256x64-901a-vfdvacuum.htmlHis VFD is quite similar to my GU256X64-312.Schematic was drawn by Boricha.Here is the Noritake Itron VFD AVR library from Kim Boricha.

author: Hydrawerk
author_rank: Super Contributor
timestamp: July 01, 2014, 12:06:21 am
content: Now this library does not work with my GU256X64-312. I will try to fix it later...

author: dannyf
author_rank: Super Contributor
timestamp: July 01, 2014, 01:20:39 am
content: That library has a far better code structure than yours.If you are to make it work for your display, I would suggest that you follow that structure - the differences are likely in timing, or initialization.The code, however, can be improved.In vfd.c:Code:#include "uart.h"Probably no reason to include it here.Code:uint8_t yoffset = _vfd_coord.y % 8;Unless the compiler optimizes that, it can be sped up significantly.You may want to look into a graphics library for Nokia 6110. The drawing routines there are really nice.

author: Hydrawerk
author_rank: Super Contributor
timestamp: July 01, 2014, 10:13:21 pm
content: So the VFD AVR library fromKim Borichaworks with my GU256X64-312. I use ATmega644.The VFD'sCSpin must be connected toGND.http://kimboricha.blogspot.kr/2013/10/noritake-itron-gu256x64-901a-vfdvacuum.htmlI will do some more experiments later.

author: Hydrawerk
author_rank: Super Contributor
timestamp: July 07, 2014, 07:40:45 pm
content: Here is my dot matrix display showing graphic features. Library was made byKim Boricha.And here isKim Boricha'soriginal video:http://youtu.be/4Aoqz0AscNcThese displays are a bit different, but the library works with both of them.

author: Hydrawerk
author_rank: Super Contributor
timestamp: July 10, 2014, 09:21:44 pm
content: A stopwatch. Two fonts used.http://youtu.be/_flUzz9P0uk?t=2m54s

author: Hydrawerk
author_rank: Super Contributor
timestamp: July 12, 2014, 03:47:29 pm
content: Two oldschool games.

author: Hydrawerk
author_rank: Super Contributor
timestamp: July 26, 2014, 02:41:40 pm
content: I put some pictures on my GU256X64-312. I used The Dot Factory for converting *.bmp to data.Quotehttp://www.pavius.net/2009/07/the-dot-factory-an-lcd-font-and-image-generator/For some reason the pictures cannot be bigger than252×56 pixels,although the VFD has 256×64 pixels.