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Countdown to release [updated 2012-08-15]

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24 Sep 2012 01:01 - 24 Sep 2012 01:02 #1767 by kohansey
Replied by kohansey on topic Countdown to release [updated 2012-08-15]
I'm amazed at how quickly you guys have advanced this project in the past few months. I am just look through the user manual now. I've noticed that the releases have been mainly geared for the Devo 6 and Devo 8. Is the firmware compatible with Devo12's? Do you guys need some help with a Devo 12 port? Great work guys.
Last edit: 24 Sep 2012 01:02 by kohansey.

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24 Sep 2012 01:42 #1768 by PhracturedBlue
Replied by PhracturedBlue on topic Countdown to release [updated 2012-08-15]

kohansey wrote: I'm amazed at how quickly you guys have advanced this project in the past few months. I am just look through the user manual now. I've noticed that the releases have been mainly geared for the Devo 6 and Devo 8. Is the firmware compatible with Devo12's? Do you guys need some help with a Devo 12 port? Great work guys.

The Devo12 is a more complicated system than the other Devo radios. Porting the Devo8 code directly to the Devo12 would probably not be hard, but taking advantage of the Devo12 capabilities would take a lot of work. As I don't have a Devo12, I am unable to do the work, and I'd rather work on the less expensive models.

So I do not have immediate plans to support the Devo12 at this time.

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24 Sep 2012 14:37 - 24 Sep 2012 20:58 #1773 by kohansey
Replied by kohansey on topic Countdown to release [updated 2012-08-15]
It sounds like you have a basic understanding of the differences between the Devo 8 and Devo 12. If you could outline the changes that would need to be made, I have no problem taking up the task and trying to get it to work on my Devo 12.

Something like:
Create screens for matching resolution
Implement drivers
...
etc.
Last edit: 24 Sep 2012 20:58 by kohansey.

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25 Sep 2012 01:40 #1793 by kohansey
Replied by kohansey on topic Countdown to release [updated 2012-08-15]
Reading through the forum, articles, and most of the links, it doesn't appear that you have any information on the Devo12 hardware. When I had first joined 2 months ago, I was under the impression you have photos of the circuit board and someone with the Devo 12 to help. Is this not the case? Do you guys need someone to trace out the pin connections for the devo 12? Do you have any specs? I'm going to take my devo 12 apart tonight, there's over 20 odd hex screw to just get the back off, and try to find some things out myself. I'll let you know what I find.

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25 Sep 2012 02:13 #1794 by kohansey
Replied by kohansey on topic Countdown to release [updated 2012-08-15]
There is one chip on the circuit that has the markings scrapped off. Does anyone know what this chip is?


Attachments:

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25 Sep 2012 02:20 - 25 Sep 2012 02:20 #1795 by PhracturedBlue
Replied by PhracturedBlue on topic Countdown to release [updated 2012-08-15]

kohansey wrote: There is one chip on the circuit that has the markings scrapped off. Does anyone know what this chip is?

From how it is wired, I'd guess it is the LCD display driver (I assume the ribbon cable goes to the display?)
Last edit: 25 Sep 2012 02:20 by PhracturedBlue.

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25 Sep 2012 02:22 #1796 by kohansey
Replied by kohansey on topic Countdown to release [updated 2012-08-15]
Yup. Is there any information on the LCD panel used, before I got tearing away the controller to get to the panel.

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25 Sep 2012 02:26 #1797 by PhracturedBlue
Replied by PhracturedBlue on topic Countdown to release [updated 2012-08-15]

kohansey wrote: Reading through the forum, articles, and most of the links, it doesn't appear that you have any information on the Devo12 hardware. When I had first joined 2 months ago, I was under the impression you have photos of the circuit board and someone with the Devo 12 to help. Is this not the case? Do you guys need someone to trace out the pin connections for the devo 12? Do you have any specs?

I've seen pics, but there isn't anyone to help with development for this tx.
High-res pics of the front and back of the main-board would be useful, as would be starting to document specs and connections.

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25 Sep 2012 02:36 #1798 by PhracturedBlue
Replied by PhracturedBlue on topic Countdown to release [updated 2012-08-15]

kohansey wrote: Yup. Is there any information on the LCD panel used, before I got tearing away the controller to get to the panel.

Not that I'm aware of. We'll certainly need to know the panel and how the ribbon is wired to try to figure out what driver chip that could be.

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25 Sep 2012 02:38 #1799 by kohansey
Replied by kohansey on topic Countdown to release [updated 2012-08-15]
I've just finished the teardown and got photos of the LCD panel. I'll start looking the chips and try to give some links to the datasheets

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25 Sep 2012 02:44 - 25 Sep 2012 02:52 #1800 by PhracturedBlue
Replied by PhracturedBlue on topic Countdown to release [updated 2012-08-15]
That package is a 128-pin QFP. Maybe the driver is something like a SSD1926. Figuring that out is going to be key to getting the driver working.

Edit: the pinout of th ssd1926 doesn't seem to match up with this chip, so we'll have to search some more.
Last edit: 25 Sep 2012 02:52 by PhracturedBlue.

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25 Sep 2012 02:44 #1801 by PhracturedBlue
Replied by PhracturedBlue on topic Countdown to release [updated 2012-08-15]
Please start a new topic on the devo12 to keep info in one place.

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25 Sep 2012 03:09 #1802 by kohansey
Replied by kohansey on topic Countdown to release [updated 2012-08-15]
I agree, who ever put this together didn't want anyone to know the exact details. The markings are literally scrapped off.

As for the rest of the board, here is what I found
MCU - STM32F103ZET6
SDRAM - IS42S16100E-7TL
NOR Flash - S29GL128P10TF101
4.7" LCD Panel - TM047NBH01

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25 Sep 2012 03:18 #1805 by kohansey
Replied by kohansey on topic Countdown to release [updated 2012-08-15]
its not letting me create a new topic under development

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25 Sep 2012 03:21 #1806 by PhracturedBlue
Replied by PhracturedBlue on topic Countdown to release [updated 2012-08-15]

kohansey wrote: its not letting me create a new topic under development

You should have permission now

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