mike danick
UNITED STATES OF AMERICA • + Follow
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Jun 16,2023
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UnoCart 2.6k

The UnoCart 2.6k v1.51 allows you to play Atari 2600 ROMs via an SD Card.
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Published: Jun 16,2023
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Topic
DIY Electronics
Hardware
Computers & USB
7th Design Contest-Electronic Project
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  • Hi, anybody experiencing any problems with the newly marked STM's? The first batch I ordered was stamped on the lower richt with ARM. The new chips differ a little. They program fine but the cartridge does not seem to boot. Now I'm unsure if I just got fake STM's or if there is another problem. I tried chips from 3 different (AliE, etc.) sellers but all with the exact same issue. bars, noises, beeps, but not the nice blue screen. All the other parts are exactly the same. Swapping chips with working stm just moves the problem, so it is definitly the new stm. Anyone?

    Mar 13,20252 Comments
    mike danick 2025-03-14 21:00:13Reply

    i’ve had issues with fpga’s of many types from aliexpress, etc. most are just fake. especially most of the xilinx fpga’s. i no longer buy fpga’s from these sorts of dealers. i purchase from reputable wholesalers now. the cost is more but i know what i get isn’t counterfeit and i don’t want to risk losing the confidence of my buyers.

    Engineer 2025-03-17 15:22:14Reply
    Reply@ mike danick：

    Hi Mike,
    Thanks for the reply.
    You confirmed my suspicion. I'll order them from a reputable source.
    Thanks again! Great project!

    Reply

  • Video I made of it helps How to Build the New Atari 2600 Uno Cart – DIY Flash Cartridge!
    https://youtu.be/wrT8zQ2c5c0

    Feb 25,20251 Comments
    mike danick 2025-03-08 09:28:19Reply

    excellent video neil!

    Reply

  • Hi, any new cartridge case for this design?

    Nov 26,20240 Comments
    Reply

  • Hello, where to find your cartridge case??

    Nov 25,20240 Comments
    Reply

  • Hi Mike, sorry getting confused here. I gather this version is programmed directly on the board via ST-Link V2? Which does not require any special adaptors? (no special cable connectors besides the ST-Link V2 itself) What threw me off is both versions have the same version number and the photos seem to be the same. Also, there is no schematic or details in the descript_ion for this version. Thank you.

    Sep 25,20241 Comments
    mike danick 2024-10-11 01:14:23Reply

    you need the tag-connect adapter along with the st-link/v2 to program this version. i am uploading a version now with a 2.54mm header that you can use a standard pin header or a jst connector to program.

    Reply

  • I can't found enclosure / cartridge?

    Mar 07,20240 Comments
    Reply

  • Hello, Could you please tell me the pinout of the J3 connector? Thank you.

    Nov 06,20231 Comments
    Arnaud Bui 2023-11-06 06:04:14Reply

    Finally, I managed to find the pinout of the connector. Left column (from up to down) (pin 1) 3.3v RST Gnd. Right column : SWIO SWCLK (not connected)

    Reply

  • Hi Do you have a recommended part number for C1 and C2? Tantalum or MLCC, voltage?

    Oct 30,20231 Comments
    Arnaud Bui 2023-11-06 05:52:21Reply

    Hi Bradley, I've just built one with tantalum capacitor type A 16V and it works fine.

    Reply

  • Hello, How can I program the STM32F407VGT6 ? Can it be programmed after it's soldered on the cart? Greetins and thanks in advance.

    Jul 14,20232 Comments
    mike danick 2023-07-23 01:35:54Reply

    you program the fpga after you solder it to the board.

    Arnaud Bui 2023-07-23 21:20:35Reply
    Reply@ mike danick：

    Thank you for the answer. But how can I do it? I don't the SWCLK, SWDIO, 3.3V and GND connectors like on the Unocart v1.03 model. Thanks again.

    Reply

  • Hi. Can i ask why you remove the 2600fs shared project. I order a pcb to make it and now the pcbway webpage with the project or the github are gone. Can you facilite me the bom and the firmware to flash. Greetings and thanks in advance.

    Jul 10,20231 Comments
    mike danick 2023-07-10 23:28:35Reply

    i have the new build i did so i removed the old one. but yes i can send you the bom and firmware if you will email me at kneehighspy@bellsouth.net thanks.

    Reply
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