Calibrating the Touchscreen on Android A13 without NAND

Lasse · August 30, 2013, 07:32:44 PM

Hello Guys,
i have now a nearly successfully working A13 (no NAND and WiFi) with Android (this Image: https://docs.google.com/file/d/0B-bAEPML8fwlVF9zcUxzQ1NDbms/edit?usp=sharing)

Now I faced problems with the touchscreen. It is working somehow (I mounted it the same way: http://i.imgur.com/hDXs5xF.jpg the metal side is visible and there is no twist in the cable) but not really like it should. I can swap the different Home Screens but thats all. I could not touch any items. What should I do to get a working Touchscreen?

best regards
Lasse

Lasse · September 01, 2013, 01:50:08 AM

Well, I could solve the problem after hard trying myself.

The solution is very easy, if you know what you should do.

You just connect your A13 through the serial interface and start the Calibration App through it. The command is the following:

Code Select

am start -n org.zeroxlab.util.tscal/.TSCalibration

Have fun with your A13 and Android.

best regards
Lasse

Lemonice · September 20, 2013, 04:08:03 PM

Thank you for your image, it's great but i have a problem, no audio function, whit olinuxino a13 rev c without wifi and nand

Lemonice · September 20, 2013, 04:12:43 PM

Did you have the same problem? I haven't touchscreen

LubOlimex · September 26, 2013, 01:49:27 PM

Lemonice, why don't you try with the latest Debian image: https://docs.google.com/file/d/0B-bAEPML8fwlbDhhN2ZRTE80azg/edit?usp=sharing?

Best regards,
Lub/OLIMEX

Lemonice · September 30, 2013, 07:19:04 PM

Hi, i have two sd card, the first with debian the second whit android. Whit debian no problem whit android i have no audio function

fabrizioc · November 13, 2013, 08:52:30 PM

Quote from: Lasse on September 01, 2013, 01:50:08 AM
You just connect your A13 through the serial interface and start the Calibration App through it. The command is the following:
Code Select Expand
am start -n org.zeroxlab.util.tscal/.TSCalibration

Hi lasse, tanks for the awesome image.
I have two question for u:
1) Have u tried to connect trought USB and adb to the device?
2) Can u give me some tips of how did you build the kernel?
Best regards,
fabrizio

Lasse · November 14, 2013, 01:33:50 PM

Hey guys,
sorry for answering so late to this topic, but i did not receive the email notifications.

Quote from: fabrizioc on November 13, 2013, 08:52:30 PM
Hi lasse, tanks for the awesome image.
I have two question for u:
1) Have u tried to connect trought USB and adb to the device?
2) Can u give me some tips of how did you build the kernel?
Best regards,
fabrizio

I did not build this image myself. It is the image i found in the wiki of the olimex guys.

ADB is working like a charm. I did not face any problems with it.

Of course I am also interested in how to build this kernel, because I like to switch to a cyanogenmod, Omni Rom, AOKP or Paranoid Android based rom. I also need support for extra hardware, so it would be usefull if there would be a wiki page with the compiling process step by step. (Of course resulting in a working kernel)

I did not recognize the audio problem, but i have not tested it at all.

There should be a topic somewhere around here where andreas described how he managed to get a working rom. But his how-to did not worked for me. Maybe if i find some time i will play a little bit around with the compiling thing again.

best regards
Lasse