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Closed

Touch panel doesn't work

description

Hey, first off, thanks for the excellent work so far...
 
Looks to me like everything is working, except for my touch screen input... Any idea on how I can troubleshoot where the problem might be?
 
XM4-bt
NetMicroSD-WiFi
ConsoleLCD-vx
Samsung Touchscreen
Booting from microSD card
 
The display comes up after boot, and looks quite correct... Colors are all perfect etc...
I know the Wifi is working, because I can see the name of my local wifi network in the configuration screen after boot...
 
I created a '/startup' directory, and placed the 'TouchCalibrate.exe' in that folder... It now starts at boot...
 
Everything seems right, but tapping on the screen, trying to calibrate, there are no taps recognized...
 
I've got another ConsoleLCD-vx here, and another Samsung touchscreen, and I've swapped those in with the same result, so I'm relatively sure it's not a hardware failure...
 
the Hardware config byte I'm using is '0x000070c9', although I've tried a few variations with no luck.
 
I've included a copy of the boot log from the serial console.
 
Cheers, and thanks,
 
...Steve...
 
Stephen Beaudry
Manager,
Server Network and Telecomm Administration
IT Services
Royal Roads University
2005 Sooke Rd.
Victoria, BC
V9B 5Y2

(250) 391-2600 ext.4149
steve.beaudry@royalroads.ca

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Closed Jan 29, 2008 at 5:25 PM by dvescovi
This is a known hardware problem. Some ConsoleLCD-vx boards do not have the interrupt pin from the touch screen controller connected. You can fix with a wire jumper. See gumstix site or news group for more information on this modification.

comments

airtyme wrote Jan 28, 2008 at 10:38 PM

OK, I SWEAR I looked through the forums before I posted this! I SWEAR :)

As a follow up to this, I found the following thread, that I believe may be a source of the problem... I'll try soldering the jumper, and let you know my results. I'm at work, and haven't got a nice fine tipped soldering iron here... will do it at home tonight.

http://www.nabble.com/Re:-Getting-the-touchscreen-to-work-td14405524.html



Cheers,

...Steve...

airtyme wrote Jan 29, 2008 at 1:41 AM

Well, I had high hopes for that, but it doesn't appear to have made any difference...

Any other ideas?

airtyme wrote Jan 29, 2008 at 4:28 AM

Alright, I tried this, and soldering the jumper as suggested in the above article did indeed allow the touchscreen to function appropriately...

I understand that this isn't an issue with the BSP package, but with the hardware provided from gumstix... still, It may warrant keeping the information around, as I'm sure a number of people have got the same combination of boards...

Cheers,

...Steve...

dvescovi wrote Jan 29, 2008 at 5:22 PM

Yea this is a known HARDWARE problem. The interrupt pin is not connected on some ConsoleLCD-vx boards.
A simple jumper will fix it. I understand Gumstix has another spin of the board in the works.