TM7000 Display module with SAMA5D4 Xplained running Android

RE: TM7000 Display module with SAMA5D4 Xplained running Android

Former Member — Fri, 10 Apr 2015 13:19:58 GMT

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

RE: TM7000 Display module with SAMA5D4 Xplained running Android

noglitch — Fri, 10 Apr 2015 07:53:23 GMT

The wires are not organized the same on sama5d3 vs. sama5d4 in 16bits mode. On PDA 4.3", we use the 24bits mode whereas on the PDA 7", the 16bits mode must be used: this is why we didn't produce a DTB for sama5d4 xplained with PDA 7" yet.

So, to have a solution, you would need to swap some wires on the ribbon cable and adapt some voltage levels... which is not easy I admit. Or wait for our production of a special ribbon cable that is design to match these new requirements.

Another solution, if you don't intend to connect your PDA 7" screen to any sama5d3 xplained system, would be to de-solder and re-solder the 0 Ohms resistors that stand at the back of the screen as two parallel series (must be documented in PDA's dataseet). Plus, you would need to provide 3.3V to the LCD through the pins 48-49 of the ribbon cable instead of 5V: for this, you would de-solder the R417 resistor and solder the R416 resistor (check the sama5d4 xplained schematics for more insight).

And the comprehensive documentation is here: http://www.atmel.com/Images/Atmel-44019-Cortex-A5-Microcontroller-Using-Display-Module-TM7000-on-SAMA5D4-Xplained-Ultra-…

Hope that it helps....

Bye,

RE: TM7000 Display module with SAMA5D4 Xplained running Android

clem57 — Fri, 10 Apr 2015 03:26:00 GMT

http://www.pdaatl.com/doc/tm7000_sama5d3xpld_qs.pdf try this out. It is linux, but can prove the hardware works with yours. Note the SAMA5D3 is close but not exactly the same. I would use the DTB for SAMA5D4 with the LCD support.

Hope this helps,

Clem