9x replacment board difference

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Buzzliteyear
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9x replacment board difference

Post by Buzzliteyear »

Can someone tell me what the difference is between these two boards at HK

https://hobbyking.com/en_us/turnigy-9x- ... board.html

https://hobbyking.com/en_us/turnigy-9x- ... tocol.html

is it Green ED040502-H16D VS atmega64 ?

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jhsa
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Re: 9x replacment board difference

Post by jhsa »

Looking at the product comments, it seems the first comes with the new green processor which I think it is a clone of the Atmega128, and the second seems to have the Atmega64A. This is what i got from reading the product discussions. :)

João
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Kilrah
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Re: 9x replacment board difference

Post by Kilrah »

As mentioned in the description one is for use with the old RF modules and the other with the new AFHDS2A ones. Firmware might be different on them to this purpose.
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Buzzliteyear
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Re: 9x replacment board difference

Post by Buzzliteyear »

Ok great , I have 6 of these Tx and first time I have come across the green chip and out of the 4 loaded with ER9x the green
chip one is the only one that the screen locks up when scrolling thought the menu alot so I was looking for a spare replacement board,
and maybe can I fit another chip also ? Atmega64

Cheers
Brett
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jhsa
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Re: 9x replacment board difference

Post by jhsa »

If you want to replace the original chip with another, I recommend the Atmega2561. It has the double of the flash memory, eeprom memory, and also RAM. It is supported by Er9x.

João

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Buzzliteyear
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Re: 9x replacment board difference

Post by Buzzliteyear »

Is that to future prof any firmware updates of so you can fill the Transmitter with lots of model s as memory?

just a quick search on ebay I see they are 4 times the cost of Atmega64
ReSt
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Re: 9x replacment board difference

Post by ReSt »

At least use an M128A (that's even cheaper than the M64)

Reinhard
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Buzzliteyear
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Re: 9x replacment board difference

Post by Buzzliteyear »

Cool thanks for the idea...is this the correct chip ?

https://ebay.to/2Xc3KEV
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bob195558
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Re: 9x replacment board difference

Post by bob195558 »

Upgrading to the ATMEGA2561-16AU CPU Chip: (viewtopic.php?f=95&t=3819&start=120#p74105)
Er9x on 9x radio, with Smartieparts Programmer and TelemetrEZ Board.
ErSky9x on Taranis, Sky9x, 9Xtreme radios.
3D-Printing: (https://openrcforums.com/forum/viewforum.php?f=129).
ReSt
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Re: 9x replacment board difference

Post by ReSt »

Yes, that is the correct one.

And... Chip-Quik is a really good thing for removing the old chip.

Reinhard
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Buzzliteyear
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Re: 9x replacment board difference

Post by Buzzliteyear »

Wow I have never seen the product before,
I was think about the damage I may do with my reflow and wondered about getting one of those chip nozzels
https://ebay.to/2XizjgI
is that the best idea for re fitting ?

cheers
Brett
Kumi
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Re: 9x replacment board difference

Post by Kumi »

The best and probably cheapest idea to remove the old chip is to use a 75W GU10 halogen lamp, ~1 minute and the chip is out :D
You need a socket, cable and some kind of stand (I made it from an insulated bent wire) to place the lamp ~10-15mm above the PCB.
Plus a liquid flux and sunglasses. The idea is from https://www.youtube.com/watch?v=HkO71G4wvo4 but there is no need for temperature measurement - just heat the chip and try to lift it with tweezers, starting from 30-40s.
The sunglasses are a must - under the lamp there is a small sun 8-)
Then "drag soldering" is a very good method to put in a new IC, some time ago I replaced the ATMEGA chip (from M64 to M128) using these solutions.
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jhsa
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Re: 9x replacment board difference

Post by jhsa »

In my opinion, applying heat for so long could damage the PCB tracks..

João

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bob195558
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Re: 9x replacment board difference

Post by bob195558 »

Chip-Quik
Er9x on 9x radio, with Smartieparts Programmer and TelemetrEZ Board.
ErSky9x on Taranis, Sky9x, 9Xtreme radios.
3D-Printing: (https://openrcforums.com/forum/viewforum.php?f=129).

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