Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A20 => Topic started by: luca on March 16, 2016, 12:57:10 AM

Title: A20 Micro + LCD7TS purple lvds
Post by: luca on March 16, 2016, 12:57:10 AM
Hello to all,
after receiving the board to20 with LCD7TS and micro sd card with Debian, the TS does not work and LCD has one purple veil.
I tried to make from scratch the .img but has not changed the problem remains the same.
https://drive.google.com/file/d/0B4lz7ttPPsekek0xVFBtaHd1WVk/view

Have you suggestions?

thank you

L2V
Title: Re: A20 Micro + LCD7TS purple lvds
Post by: cptG on March 16, 2016, 02:05:54 AM
I have experienced similar results if the ribbon cable is either:
- old and botched, or:
- not connected correctly.

Otherwise, check to see if your script.bin is configured correctly. To do so, change to the /boot directory and enter

bin2fex script.bin script.current.fex

In script.current.fex, look for the section [lcd0_para]. As a reference for the lcd0 parameters, see the .fex files contained in the .zip linked to on this page:

https://www.olimex.com/wiki/index.php?title=Configuration_of_hardware_in_the_debian_image (https://www.olimex.com/wiki/index.php?title=Configuration_of_hardware_in_the_debian_image)

(Section "Changing A13-OLinuxino settings to VGA...")


Note: only look at the lcd0_para section, do not get distracted by other parameters in there since the script files contained in there are not for A20 boards.
Title: Re: A20 Micro + LCD7TS purple lvds
Post by: luca on March 16, 2016, 10:39:00 AM
thanks for the reply.
But the TS, the board and cable are new, I received two days ago.
It will try to analyze the script and bin file and regenerate these, hoping that the problem is this.

I'll let you know
Thank you