From: Dave H. <dhy...@gm...> - 2008-08-07 16:19:27
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Hi yiphia, > For the delay, i found the mistake, there was a useless call of function > ftme(&endTime) in the usleep.c > > but there isn't any display on the lcd > > > Where is my mistake ? I don't see anything obvious wrong with the code. In my experience, you should be able to connect Power, Ground, and Contrast up and adjust the contrast until you see a row of black squares. If you can't see the row of black squares, then there is something else about the LCD (like maybe it requires a backlight voltage). You'll need to consult the data sheet. Until you can get the row of black squares, there really isn't much point in trying to debug the code. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Dave H. <dhy...@gm...> - 2008-08-08 14:29:48
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Hi yipiha, > the only reason that I see is the supply of 3.3 v and not 5v > > For the LCD that I have at my disposal is the MDLS16265 The datasheet for the MDLS16265 says it needs 5v, with a minimum of 4.75v. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: yipiha <yip...@gm...> - 2008-08-08 16:11:12
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Ok Can you give me the link of the datasheet because I can not find it I'm doing a small card from 3 to 5v the LDD through transistor. I hope it will work. Thank you Dave Hylands wrote: > > Hi yipiha, > >> the only reason that I see is the supply of 3.3 v and not 5v >> >> For the LCD that I have at my disposal is the MDLS16265 > > The datasheet for the MDLS16265 says it needs 5v, with a minimum of 4.75v. > > -- > Dave Hylands > Vancouver, BC, Canada > http://www.DaveHylands.com/ > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win great > prizes > Grand prize is a trip for two to an Open Source event anywhere in the > world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > -- View this message in context: http://www.nabble.com/LCD-2x16-characters-on-a-breakout-gs-tp18707346p18894055.html Sent from the Gumstix mailing list archive at Nabble.com. |
From: Dave H. <dhy...@gm...> - 2008-08-08 17:42:55
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Hi yipiha, > Can you give me the link of the datasheet because I can not find it I just googled for MDLS16265 and the 3rd link is this: <http://cumbriadesigns.co.uk/Datasheets/MDLS16265-04.pdf> > I'm doing a small card from 3 to 5v the LDD through transistor. The data sheet says that anything over 2.2v is considered a logic high, so you should be able to use the 3.3v signals directly. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: yipiha <yip...@gm...> - 2008-11-06 15:01:58
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Sorry for my absence I solved my problem, the mistake the controle accept the 3v but the lcd don't accpet with the small tension adapter card, the lcd works fine thanks Dave. Dave Hylands wrote: > > Hi yipiha, > >> Can you give me the link of the datasheet because I can not find it > > I just googled for MDLS16265 and the 3rd link is this: > <http://cumbriadesigns.co.uk/Datasheets/MDLS16265-04.pdf> > >> I'm doing a small card from 3 to 5v the LDD through transistor. > > The data sheet says that anything over 2.2v is considered a logic > high, so you should be able to use the 3.3v signals directly. > > -- > Dave Hylands > Vancouver, BC, Canada > http://www.DaveHylands.com/ > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win great > prizes > Grand prize is a trip for two to an Open Source event anywhere in the > world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > -- View this message in context: http://www.nabble.com/LCD-2x16-characters-on-a-breakout-gs-tp18707346p20362727.html Sent from the Gumstix mailing list archive at Nabble.com. |