massimiliano Posted May 23, 2006 Report Share Posted May 23, 2006 this is the pinning of my new vfd display... is it possible to connect it to the core?Pin no. function 1 d7 2 d6 3 d5 4 d4 5 d3 6 d2 7 d1 8 d0 9 /wr 10 /cs 11 sin/test 12 busy 13 gnd 14 gnd 15 vcc 16 vcc Quote Link to comment Share on other sites More sharing options...
stryd_one Posted May 23, 2006 Report Share Posted May 23, 2006 yes but if it is not 44780 compatible you may have to make a new driver. Quote Link to comment Share on other sites More sharing options...
Rowan Posted May 24, 2006 Report Share Posted May 24, 2006 hi,as stryde has said, you need to know if your display conform to the 44780 standard. Almost all Charcter LCD's do, and most VFD's do as well. BUT be warned, some VFD's use a unique set of data instructions that MIOS will not correctly respond to.What is printed on the circuit board? That should tell you what the part number of the modual is......Google it from there ;) Quote Link to comment Share on other sites More sharing options...
seppoman Posted May 26, 2006 Report Share Posted May 26, 2006 Hi Massimiliano,from the pin names I´d say this display is not Hitachi compatible. Looks a lot like the old-skool parallel interface my Futaba VFD has. For the Futaba, I have written a MIOS driver. It works quite well - the only problem with my vfd is that it is quite slow. On my MBSID, using the vfd introduces an additional latency of around 2-3 ms (only for the master). I can live with it on the SID, but e.g. using it for a MBFM might or might not be possible at all.To find out if your display has the same interface as mine, please state the exact type/manufacturer and, if you´ve found one, post a link to the data sheet. If you PM me your eMail adress, I´ll send my driver to you :)Seppoman Quote Link to comment Share on other sites More sharing options...
massimiliano Posted May 28, 2006 Author Report Share Posted May 28, 2006 it's a noritakeCU40026SCPB-T20A 2x40 VFDi'll have to look for compatibility... Quote Link to comment Share on other sites More sharing options...
DrBunsen Posted May 28, 2006 Report Share Posted May 28, 2006 Is that the one from ebay.uk seller bonnynslide? Quote Link to comment Share on other sites More sharing options...
massimiliano Posted May 28, 2006 Author Report Share Posted May 28, 2006 no, i found it on ebay from usa... Quote Link to comment Share on other sites More sharing options...
ilmenator Posted June 1, 2006 Report Share Posted June 1, 2006 Hi seppoman,wouldn't you like to contribute your driver to the download section of the WIKI? Or send it to TK, so it can be placed directly on the display drivers page on ucapps?Best regards, ilmenator Quote Link to comment Share on other sites More sharing options...
nebula Posted June 1, 2006 Report Share Posted June 1, 2006 VFD's look great, but aren't they generally limited to displaying ALL CAPS? Or is this a dot-matrix display? Quote Link to comment Share on other sites More sharing options...
seppoman Posted June 6, 2006 Report Share Posted June 6, 2006 Hi,the driver should work with this display. Just a few commands have to be changed - these parallel interfaces dont have a really standardized command set. But there´s no magic about it. I´ll put a few more comments in the source code and publish it in the next few days. Of course if Thorsten wants to put the driver on the uCApps site that would be great - I just hesitated publishing it so far because I think it would be better if someone besides me manages to get the driver to work before doing that. A few people got the driver from me in the past, but I never got any comments about the success up to now...SeppomanP.S. modern VFDs are mostly dot matrix displays and there are even graphical ones Quote Link to comment Share on other sites More sharing options...
stryd_one Posted June 6, 2006 Report Share Posted June 6, 2006 Thanks Seppo! Quote Link to comment Share on other sites More sharing options...
MRE Posted June 9, 2006 Report Share Posted June 9, 2006 I have a boatload of the same unit as a 20X2.. Noritaki-Itron makes some nice VFDs..I have used them quite a bit, and they generally conform to the Hitachi standard as much as possible. Quote Link to comment Share on other sites More sharing options...
seppoman Posted June 9, 2006 Report Share Posted June 9, 2006 I have used them quite a bit, and they generally conform to the Hitachi standard as much as possible.that´s not generally true. The big VFD makers (Noritake and Futaba) do build Hitachi compatible displays, but they also have old-skool parralel/serial interface displays that are cheaper than the Hitachi ones, so I suppose there are still more VFDs in action and on sale that are not compatible. The one from Massimiliano is one of these.Seppoman Quote Link to comment Share on other sites More sharing options...
DrBunsen Posted June 9, 2006 Report Share Posted June 9, 2006 Do you have any of this boatload for sale, MRE? :) Quote Link to comment Share on other sites More sharing options...
massimiliano Posted June 10, 2006 Author Report Share Posted June 10, 2006 seppoman, you talked about a slow response of your vfd display... will this delay affect even the sound of my sid?However, if you can send me your driver within an e-mail i'll try to connect all. but be patient, since i'm a newbie not so expert in electronixx, could you send me an interconnection diagram for the pinning? will i have to power my vfd separately of the core will send the power to it? Quote Link to comment Share on other sites More sharing options...
MRE Posted June 19, 2006 Report Share Posted June 19, 2006 Do you have any of this boatload for sale, MRE? :)Well shizzle.. I wasnt expecting that, but sure. I havn't counted lately, but if memory serves, I have like 20 or 30! ;)They are all only slightly used, as the undisclosed location from which I got them had done a major upgrade to 500 machines. About 200 of them needed side cars because they were way too old to install the imbedded version of the upgrade. Within 5 months, most of those machines were subsequently replaced with the imbedded units already installed. So.. long story short, 200 side cars went in the trash. Dumpster diving never hurt anyone!(I'm just kickin myself for not saving the 10 digit keypads and card readers!)Last I checked, the street price for a 20x2 VFD was between $50 and $90. Naturally I would not demand nearly that. How does $25 plus shipping sound?I can give a link to the data sheet. I have used the standard Hitatchi startup routines (and ran both 4 bit and 8 bit modes) with no problems but check the special fuctions and charactor sets to be sure.Comes with a short cable (1.5 inch?) that has a connector on both ends. The pins are two rows of I think 6 rather than one long row. Quote Link to comment Share on other sites More sharing options...
MRE Posted June 20, 2006 Report Share Posted June 20, 2006 Official count is 31.Noritake Itron P/n CU20025ECPB-U1JConnector is a 2X7 Quote Link to comment Share on other sites More sharing options...
MRE Posted June 20, 2006 Report Share Posted June 20, 2006 http://www.noritake-itron.com/Specs/CU-U/CU20025ECPB-W1J-03.pdfDont know the difference between the W1j and the U1j but I cant find the U1j. From what I remember, the datasheet looks nearly identical. Quote Link to comment Share on other sites More sharing options...
seppoman Posted June 22, 2006 Report Share Posted June 22, 2006 Hi,sorry for the long delay - I was on vacation...But today I finished an updated version of the driver with small bugfixes, more documentation and a workaround for the missing "custom character" capability of the display. Here we go:http://www.seppoman.de/vfd/seppoman, you talked about a slow response of your vfd display... will this delay affect even the sound of my sid?Actually the "slow" response is not visible, it does only slightly affect the timing of the SID (my VFD introduces an additional latency/jitter of around 2 ms). You probably won´t notice this at all.However, if you can send me your driver within an e-mail i'll try to connect all. but be patient, since i'm a newbie not so expert in electronixx, could you send me an interconnection diagram for the pinning? will i have to power my vfd separately of the core will send the power to it?All information about pinning is in the header of the source code.If you use the voltage regulator on the core you should probably power the VFD separately. It takes about 700 mA, you would need a large heatsink. If you´ve built the MBSID PSU optimized cirquit, you can use the normal 5V supply - the C64 PSU is rated 1.5 A at 5 V.As compensation for your long wait I´ve made a "starting point" version of the driver for you. It *could* work for the Noritake as is. Noritake doesn´t give out detailed data sheets, so there´s no exact description e.g. about cursor position count. here is the download: http://www.seppoman.de/vfd/app_lcd_noritake.zipKind regards,Seppoman Quote Link to comment Share on other sites More sharing options...
stryd_one Posted June 22, 2006 Report Share Posted June 22, 2006 Thx Seppo :) Hope you enjoyed the holiday! Quote Link to comment Share on other sites More sharing options...
goyousalukis Posted June 29, 2006 Report Share Posted June 29, 2006 Hey Seppo, Thanks for posting your driver. I just got a IEEE VFD - it's pins are labeled:D0-D7 (of course)BusyWrite StrobeReset+5GroundThese are slightly different that the ones in your driver:; ==========================================================================;; connections:;; core module -> display;; D0..D7 -> D0..D7; Enable -> SEL#; R/W -> WR#; R/S -> BUSY (plus a 100 Ohm resistor in series !!!); N/C or +5V -> TEST#;; ==========================================================================Would it be possible for me to use this driver as a starting point? If so what would the connections be? Thanks,Justin Quote Link to comment Share on other sites More sharing options...
seppoman Posted June 29, 2006 Report Share Posted June 29, 2006 Busy is Busy, Write Strobe is the same as WR# (don´t know if it´s low or high active so if nothing happens you could try to exchange bcf and bsf at the lines concerning WR. Reset? you´ll have to tie this either to GND or 5V. You don´t have a SEL line. This just means you can´t connect more than one display to the same port. You could delete the lines concerning the SEL line out of the driver, or just ignore it. All this is in User_LCD_Data.But anyway, you´ll have to find a data sheet to learn about the special commands of the display. Without it you´ll have a hard time finding out how to position the cursor etc.Seppoman Quote Link to comment Share on other sites More sharing options...
goyousalukis Posted June 29, 2006 Report Share Posted June 29, 2006 Thanks a lot Seppoman,I do have the datasheet for the display - it has the control codes. Thanks for the help...Justin Quote Link to comment Share on other sites More sharing options...
seppoman Posted September 15, 2006 Report Share Posted September 15, 2006 Hi,meanwhile quite a number of people have downloaded the driver, so I wonder if anyone besides me has managed to use this driver or modify it for other displays.Seppoman Quote Link to comment Share on other sites More sharing options...
MRE Posted September 16, 2006 Report Share Posted September 16, 2006 I still have a load of 20X2 noritaki VFDs.. nice pretty blue. If anyone is interested, make an offer. I need cash! ;) Quote Link to comment Share on other sites More sharing options...
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