From: Demetris Z. <fgc...@cy...> - 2006-11-25 15:31:38
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Has anyone interfaced a Touchscreen on the UCB1400 pins ?=20 There is something mentioning the connection for the touchscreen in the = datasheet but it doesn't make much sence. I tried the TSLIBS with a touchscreen from Panasonic LCD that is = attached to it but it doesn't seem to work properly, it doesn't feel the = Pressure and the position is allot out of range so i can't even make the = calibration.=20 I know that there must be some kind of simple cercuitry infront of the = touchscreen pins but i don't know what. Please anyone who worked with a touchscreens help me out here.=20 Any suggestions on touchscreens would be really appriciated. Demetris Z. |
From: Dave H. <dhy...@gm...> - 2006-11-25 16:58:21
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Hi Demetris, On 11/25/06, Demetris Zavorotnichenko <fgc...@cy...> wrote: > > Has anyone interfaced a Touchscreen on the UCB1400 pins ? Apparently not. > There is something mentioning the connection for the touchscreen in the > datasheet but it doesn't make much sence. I did a google on UCB1400 touchscreen and also discovered an application note from Philips on how to properly initialize the UCB1400 in irder to use the touchscreen. http://www.nxp.com/acrobat_download/applicationnotes/AN10154_2.pdf -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Demetris Z. <fgc...@cy...> - 2006-11-25 17:04:09
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How can i integrade that into Gumstix? I see the code but am a bit confused about it's use. I am trying to use Microwindows with the touchscreen but first i have to make the TSlib work, so how should i proceed? Demetris Z. ----- Original Message ----- From: "Dave Hylands" <dhy...@gm...> To: "General mailing list for gumstix users." <gum...@li...> Sent: Saturday, November 25, 2006 6:58 PM Subject: Re: [Gumstix-users] UCB1400 Touchscreen > Hi Demetris, > > On 11/25/06, Demetris Zavorotnichenko <fgc...@cy...> wrote: >> >> Has anyone interfaced a Touchscreen on the UCB1400 pins ? > > Apparently not. > >> There is something mentioning the connection for the touchscreen in the >> datasheet but it doesn't make much sence. > > I did a google on UCB1400 touchscreen and also discovered an > application note from Philips on how to properly initialize the > UCB1400 in irder to use the touchscreen. > http://www.nxp.com/acrobat_download/applicationnotes/AN10154_2.pdf > > -- > Dave Hylands > Vancouver, BC, Canada > http://www.DaveHylands.com/ > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share > your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Dave H. <dhy...@gm...> - 2006-11-25 17:15:24
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H Demetris, On 11/25/06, Demetris Zavorotnichenko <fgc...@cy...> wrote: > How can i integrade that into Gumstix? I see the code but am a bit confused > about it's use. > > I am trying to use Microwindows with the touchscreen but first i have to > make the TSlib work, so how should i proceed? If I were going to do this, I woudl start simple. You need to check the ucb1400 driver, which is unfortunately complicated because it interfaces with so many things. You need to understand how the existing driver works and figure out how the touch screen stuff needs to integrate into it and get that working before you do anything up in user space with microwindows. I don't know much more about the ucb1400 driver since I haven't spent any time studying it. I'vw also never interfaced a touch screen before. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Demetris Z. <fgc...@cy...> - 2006-11-25 17:57:49
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I used the TSlib driver and the touchscreen kinda works, altough there is a problem in alignment and touch sence, but i think that has to do with a small interface change in the pins of the touchscreen, There are some resistors that should be in a specific order on the pins for the touchscreen to work properly. Another idea here. Can't i use a Touchscreen Driver Device from Earth LCD and use the touchscreen as a mouse through a serial connection ? Demetris Z. ----- Original Message ----- From: "Dave Hylands" <dhy...@gm...> To: "General mailing list for gumstix users." <gum...@li...> Sent: Saturday, November 25, 2006 7:15 PM Subject: Re: [Gumstix-users] UCB1400 Touchscreen >H Demetris, > > On 11/25/06, Demetris Zavorotnichenko <fgc...@cy...> wrote: >> How can i integrade that into Gumstix? I see the code but am a bit >> confused >> about it's use. >> >> I am trying to use Microwindows with the touchscreen but first i have to >> make the TSlib work, so how should i proceed? > > If I were going to do this, I woudl start simple. You need to check > the ucb1400 driver, which is unfortunately complicated because it > interfaces with so many things. > > You need to understand how the existing driver works and figure out > how the touch screen stuff needs to integrate into it and get that > working before you do anything up in user space with microwindows. > > I don't know much more about the ucb1400 driver since I haven't spent > any time studying it. I'vw also never interfaced a touch screen > before. > > -- > Dave Hylands > Vancouver, BC, Canada > http://www.DaveHylands.com/ > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share > your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Roger V. <ro...@md...> - 2006-11-26 03:22:11
Attachments:
backlight_leds_case.jpg
backlight_leds_on.jpg
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I just got one of the Panasonic LCDs hooked up, so I'm interested in this. I'd rather see a native driver for it than a serial converter as I'm working with limited space and battery power. By the way, I have my backlight circuit working, I've made the changes to the bootargs for the frame buffer, and I have it supported in a buildroot kernel, all the wires are soldered and inspected... what's the fastest and easiest way to generate any kind of output on the LCD at all? A test pattern will eventually be needed, but right now, I'd settle for "What hath Gumstix wrought?" in tiny fixed system font. Pics attached, I replaced the flourescent backlight with white LEDs and it worked pretty well. --Roger Venable > I used the TSlib driver and the touchscreen kinda works, altough there is > a > problem in alignment and touch sence, but i think that has to do with a > small interface change in the pins of the touchscreen, There are some > resistors that should be in a specific order on the pins for the > touchscreen > to work properly. > > Another idea here. > > Can't i use a Touchscreen Driver Device from Earth LCD and use the > touchscreen as a mouse through a serial connection ? > > > Demetris Z. > > > ----- Original Message ----- > From: "Dave Hylands" <dhy...@gm...> > To: "General mailing list for gumstix users." > <gum...@li...> > Sent: Saturday, November 25, 2006 7:15 PM > Subject: Re: [Gumstix-users] UCB1400 Touchscreen > > >>H Demetris, >> >> On 11/25/06, Demetris Zavorotnichenko <fgc...@cy...> wrote: >>> How can i integrade that into Gumstix? I see the code but am a bit >>> confused >>> about it's use. >>> >>> I am trying to use Microwindows with the touchscreen but first i have >>> to >>> make the TSlib work, so how should i proceed? >> >> If I were going to do this, I woudl start simple. You need to check >> the ucb1400 driver, which is unfortunately complicated because it >> interfaces with so many things. >> >> You need to understand how the existing driver works and figure out >> how the touch screen stuff needs to integrate into it and get that >> working before you do anything up in user space with microwindows. >> >> I don't know much more about the ucb1400 driver since I haven't spent >> any time studying it. I'vw also never interfaced a touch screen >> before. >> >> -- >> Dave Hylands >> Vancouver, BC, Canada >> http://www.DaveHylands.com/ >> |
From: Demetris Z. <fgc...@cy...> - 2006-11-26 18:10:37
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Could i use the Touchscreen converter to serial that is on the Earth LCD and use that as a mouse on Gumstix? would that work ? Demetris Z. ----- Original Message ----- From: "Roger Venable" <ro...@md...> To: "General mailing list for gumstix users." <gum...@li...> Sent: Sunday, November 26, 2006 5:22 AM Subject: Re: [Gumstix-users] UCB1400 Touchscreen > > I just got one of the Panasonic LCDs hooked up, so I'm interested in this. > I'd rather see a native driver for it than a serial converter as I'm > working with limited space and battery power. > > By the way, I have my backlight circuit working, I've made the changes to > the bootargs for the frame buffer, and I have it supported in a buildroot > kernel, all the wires are soldered and inspected... > > what's the fastest and easiest way to generate any kind of output on the > LCD at all? > > A test pattern will eventually be needed, but right now, I'd settle for > "What hath Gumstix wrought?" in tiny fixed system font. > > Pics attached, I replaced the flourescent backlight with white LEDs and it > worked pretty well. > > --Roger Venable > >> I used the TSlib driver and the touchscreen kinda works, altough there is >> a >> problem in alignment and touch sence, but i think that has to do with a >> small interface change in the pins of the touchscreen, There are some >> resistors that should be in a specific order on the pins for the >> touchscreen >> to work properly. >> >> Another idea here. >> >> Can't i use a Touchscreen Driver Device from Earth LCD and use the >> touchscreen as a mouse through a serial connection ? >> >> >> Demetris Z. >> >> >> ----- Original Message ----- >> From: "Dave Hylands" <dhy...@gm...> >> To: "General mailing list for gumstix users." >> <gum...@li...> >> Sent: Saturday, November 25, 2006 7:15 PM >> Subject: Re: [Gumstix-users] UCB1400 Touchscreen >> >> >>>H Demetris, >>> >>> On 11/25/06, Demetris Zavorotnichenko <fgc...@cy...> wrote: >>>> How can i integrade that into Gumstix? I see the code but am a bit >>>> confused >>>> about it's use. >>>> >>>> I am trying to use Microwindows with the touchscreen but first i have >>>> to >>>> make the TSlib work, so how should i proceed? >>> >>> If I were going to do this, I woudl start simple. You need to check >>> the ucb1400 driver, which is unfortunately complicated because it >>> interfaces with so many things. >>> >>> You need to understand how the existing driver works and figure out >>> how the touch screen stuff needs to integrate into it and get that >>> working before you do anything up in user space with microwindows. >>> >>> I don't know much more about the ucb1400 driver since I haven't spent >>> any time studying it. I'vw also never interfaced a touch screen >>> before. >>> >>> -- >>> Dave Hylands >>> Vancouver, BC, Canada >>> http://www.DaveHylands.com/ >>> > -------------------------------------------------------------------------------- > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share > your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV -------------------------------------------------------------------------------- > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |
From: Roger V. <ro...@md...> - 2006-11-26 21:37:38
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I don't know why not, but I haven't looked at the converter and I haven't tried a serial keyboard on Gumstix. >From what I can tell, X-windows touchscreen drivers treat touchscreens as an additional mouse, so I'm hoping I can use the native driver without additional conversion hardware. > Could i use the Touchscreen converter to serial that is on the Earth LCD > and > use that as a mouse on Gumstix? would that work ? > > > Demetris Z. > > > ----- Original Message ----- > From: "Roger Venable" <ro...@md...> > To: "General mailing list for gumstix users." > <gum...@li...> > Sent: Sunday, November 26, 2006 5:22 AM > Subject: Re: [Gumstix-users] UCB1400 Touchscreen > > >> >> I just got one of the Panasonic LCDs hooked up, so I'm interested in >> this. >> I'd rather see a native driver for it than a serial converter as I'm >> working with limited space and battery power. >> >> By the way, I have my backlight circuit working, I've made the changes >> to >> the bootargs for the frame buffer, and I have it supported in a >> buildroot >> kernel, all the wires are soldered and inspected... >> >> what's the fastest and easiest way to generate any kind of output on the >> LCD at all? >> >> A test pattern will eventually be needed, but right now, I'd settle for >> "What hath Gumstix wrought?" in tiny fixed system font. >> >> Pics attached, I replaced the flourescent backlight with white LEDs and >> it >> worked pretty well. >> >> --Roger Venable >> >>> I used the TSlib driver and the touchscreen kinda works, altough there >>> is >>> a >>> problem in alignment and touch sence, but i think that has to do with a >>> small interface change in the pins of the touchscreen, There are some >>> resistors that should be in a specific order on the pins for the >>> touchscreen >>> to work properly. >>> >>> Another idea here. >>> >>> Can't i use a Touchscreen Driver Device from Earth LCD and use the >>> touchscreen as a mouse through a serial connection ? >>> >>> >>> Demetris Z. >>> >>> >>> ----- Original Message ----- >>> From: "Dave Hylands" <dhy...@gm...> >>> To: "General mailing list for gumstix users." >>> <gum...@li...> >>> Sent: Saturday, November 25, 2006 7:15 PM >>> Subject: Re: [Gumstix-users] UCB1400 Touchscreen >>> >>> >>>>H Demetris, >>>> >>>> On 11/25/06, Demetris Zavorotnichenko <fgc...@cy...> >>>> wrote: >>>>> How can i integrade that into Gumstix? I see the code but am a bit >>>>> confused >>>>> about it's use. >>>>> >>>>> I am trying to use Microwindows with the touchscreen but first i have >>>>> to >>>>> make the TSlib work, so how should i proceed? >>>> >>>> If I were going to do this, I woudl start simple. You need to check >>>> the ucb1400 driver, which is unfortunately complicated because it >>>> interfaces with so many things. >>>> >>>> You need to understand how the existing driver works and figure out >>>> how the touch screen stuff needs to integrate into it and get that >>>> working before you do anything up in user space with microwindows. >>>> >>>> I don't know much more about the ucb1400 driver since I haven't spent >>>> any time studying it. I'vw also never interfaced a touch screen >>>> before. >>>> >>>> -- >>>> Dave Hylands >>>> Vancouver, BC, Canada >>>> http://www.DaveHylands.com/ >>>> |