topic Re: forcing a first time boot on Android for the iMX51 EVK in i.MX Processors

forcing a first time boot on Android for the iMX51 EVK

RafaelG_Lopez — Wed, 21 Jul 2010 23:28:49 GMT

Can anyone help me figure out how to force an iMX51 EVK to do a first time boot on Android R8?

I need to do touch screen calibration again.

Thank you.

Re: forcing a first time boot on Android for the iMX51 EVK

Jackrun2000 — Sat, 31 Jul 2010 02:25:06 GMT

First you must move out the file: /data/system/calibration, then add calibration in your start env, the calibration cross will be appeared on your touch screen.

Re: forcing a first time boot on Android for the iMX51 EVK

RafaelG_Lopez — Sun, 01 Aug 2010 04:24:00 GMT

Jack: Thank you. It works. I also received this tip from the technical contact at Freescale. However, after removing the calibration file, it did go through touch screen calibration, but then something else got wrecked, since Android would get stuck during loading, and it did not get to the main screen. I had to erase the SD card and do a clean installation, which did go through touchscreen calibration. I guess these are the growing pains of working with the iMX51 for the first time, along with Android, and the touchscreen feature. Too many new things at the same time. Rafael Lopez jack kang said:

First you must move out the file: /data/system/calibration, then add calibration in your start env, the calibration cross will be appeared on your touch screen.

Re: forcing a first time boot on Android for the iMX51 EVK

Jackrun2000 — Sun, 01 Aug 2010 15:06:02 GMT

My andorid-r8 worked normally. I guess there is something wrong in your compilation. If you want to use android-r8, you must use linux kernel-2.6.31 and compile it with Freescal compiler. I used kernel-2.6.28 for android-r8 and got the same error like you met. Rafael G. Lopez said:

Jack:

Thank you. It works.
I also received this tip from the technical contact at Freescale.
However, after removing the calibration file, it did go through touch screen calibration, but then something else got wrecked, since Android would get stuck during loading, and it did not get to the main screen.

I had to erase the SD card and do a clean installation, which did go through touchscreen calibration.

I guess these are the growing pains of working with the iMX51 for the first time, along with Android, and the touchscreen feature. Too many new things at the same time.

Rafael Lopez

jack kang said:
First you must move out the file: /data/system/calibration, then add calibration in your start env, the calibration cross will be appeared on your touch screen.