TM7000 Display module with SAMA5D4 Xplained running Android

9 Apr 2015

I've tried using the instructions on Android4SAM (Android4SAMv44 < Android4SAM < TWiki) but I've had no luck getting Android to work on Xplained with a TM7000 Display module.

I've been able to load the package for the SAMA5D4 Xplained, but it's meant for a 4.3" display ( Precision Design Associates - 43xx Series). All I get on the display is the initial white haze before fading to black. The SAMA5D4EK package loads but it also doesn't work. The initial Android screen opens correctly, but the touch doesn't work

Has anyone else had luck getting the the SAMA5D4 Xplained to work with the TM7000? Or, can someone give some instructions that explain how to get it work?

Any help is appreciated. Thanks.

Top Comments

noglitch over 9 years ago in reply to Former Member +1

From the top of my head, you can take the pda4 dtsi/dts files and change some details. Note that this only applies on a linux-3.10-at91 based kernel (the one of the demo actually): - the file names ;-…

Former Member over 9 years ago

BTW, here are the links I used to get the TM7000 to work with the SAMA5D4 Xplained for linux.

How to move resistor jumpers on TM7000
http://www.atmel.com/Images/Atmel-44019-Cortex-A5-Microcontroller-Using-Display-Module-TM7000-on-SAMA5D4-Xplained-Ultra-Board_Application-Note.pdf

How to load linux packages on the SAMA5D4 Xplained
https://www.youtube.com/watch?v=5pronTeX0lo
SAMA5D4 Xplained Ultra - Tips and Tricks #1 - Getting Displays up and Running

Linux image that works for this hardware configuration
ftp://ftp.linux4sam.org/pub/demo/linux4sam_4.6/linux4sam-poky-sama5d4_xplained_pda7-timesys-demo.zip
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Former Member over 9 years ago in reply to noglitch

This is great. I'll let you know how it goes.

Thanks again.
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clem57 over 9 years ago in reply to noglitch

Thanks for giving a clear direction which has been lacking on the bogs lately.
Cheers,
Clem
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noglitch over 9 years ago in reply to Former Member

From the top of my head, you can take the pda4 dtsi/dts files and change some details. Note that this only applies on a linux-3.10-at91 based kernel (the one of the demo actually):
- the file names ;-)
- the address of the maXTouch is 0x4a on PDA4 whereas it's 0x4c on PDA7
- change the machine compatible string form "pda,tm43xx" to "pda,tm70xx" or add the "pda,tm70xx" if it's missing.

It also seems that the demo here ftp://ftp.linux4sam.org/pub/demo/linux4sam_4.6/linux4sam-poky-sama5d4_xplained_pda7-timesys-demo.zip embeds a PDA7 device tree which seems correct at a first sight.

Once you have the dtb (taken from archive or compiled) you can change its name in the .tcl file that allows SAM-BA to flash the board.

Bye,
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Former Member over 9 years ago in reply to noglitch

Thanks for the quick response.

I already used your second solution to get the TM7000 to work with the sama5d4 xplained. I've been able to load linux packages with no problem, but now I want to use it with Android. I'm not interested in using the sama5d3.

My problem now is that I can't find an Android package that will work with the sama5d4 xplained and the TM7000. As I mentioned in my original post, there is a package for a 4.3 screen and one for the TM7000 with sama5d4ek, but not one for the sama5d4 xplained.

I'm new at this so I don't know how to create my own package for the TM7000. I've looked at SAMA5D4 Xplained Ultra - Tips and Tricks #1 - Getting Displays up and Running but I just get lost.

Any other ideas?
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