Worklog MiSTer FPGA Portable Ultra-thin

[tzmwx]

2024/11 new
Share 3D printing files of the SHELL

GitHub - tzmwx/MiSTer-FPGA-PORTABLE

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github.com

2024/10 new

2024/7

20240712，At present, it still needs to be improved

A month ago, I spent $100 to purchase a MiSTer FPGA motherboard from QMTECH in China.

Compared to the low price of DE10-nano, I modified it.

The first step is to reduce the memory height: I removed the pins of GPIO_0 and the socket of 128M SDRAM

Remade pins for SDRAM using copper wire

It effectively lowered the height and the running score was much higher than before

 

[tzmwx]

Step 2: Remove the Network and Power socket

Now it's an ultra-thin motherboard

 

[Stitches]

Very clever

 

[tzmwx]

Step 3: Determine the HDMI connection method

I removed the HDMI interface of the LCD driver board and directly soldered it with copper wire. Modified to shrink an HDMI plug and plug it into the QMTECH motherboard HDMI socket

The screen still uses zj050na-08c

 

[tzmwx]

Step 4: Install a USB HUB
I purchased a USB2.0 HUB, modified and reduced it, and installed it at the original motherboard network socket.
One is for the controller,
one for external sockets,
and the other is for backup

 

[tzmwx]

Step 5: the joystick
I modified a USB PS2 controller

 

[Rararagi]

I'm very curious to know how you adapted the joycon joystick. Does the direct connection work or was something else necessary?

Step 5: the joystick
I modified a USB PS2 controller
View attachment 34260View attachment 34261View attachment 34262

 

[tzmwx]

I'm very curious to know how you adapted the joycon joystick. Does the direct connection work or was something else necessary?

Yes, it can be used directly, but there is a problem, please see the picture
The polarity of one of their axes is opposite. In the MISTER system, the menu system and the control system can be set separately, so the impact is not significant.

 

[Rararagi]

Yes, it can be used directly, but there is a problem, please see the picture
The polarity of one of their axes is opposite. In the MISTER system, the menu system and the control system can be set separately, so the impact is not significant.

Nice, i'll try with some newer models i saw on aliexpress. I hope it's not specific to that version you used. Thanks for the answer!

 

[tzmwx]

I have modified the casing again

 

[Stitches]

10/10