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TZXDuino 1.14

Update for TZXDuino.

Lots of little things changed for this update but the biggest is ID15/Direct Recording has been added. The code has been adapted and fixed from the MAXDuino firmware. On the Amstrad CPC this means that Music Loaders do work as do many other games that use the ID15/Direct Recording Block type however the following Musical Loaders are temperemental but this is due to hardware rather than firmware.

Harvey Headbanger
Spiky Harold

I've also removed DigitalWrite in favour of a quicker process as suggested by Ken Forster and this means that some MSX games work better at higher TSX baudrates. Elite and Aliens will now load at 2400 baudrate.

There were two Gremlin Graphics games for the Amstrad CPC that had copy protection that required a reversal of high and low signals. Samurai Trilogy and Footballer Of The Year II. I have added an option to the menu to fix this issue.

You can download the new firmware from here.

If you with to use the TZXDuino Updater rather than the Arduino IDE to update your device then unfortunately the author is away at the moment and cannot update it but there is a work around if you follow these instructions.

1) Download the following file…
2) Unzip the download and you will see two files.
TZX113NanoLCD0x27.hex and TZX113NanoLCD0x3f.hex

3) Go to C:\Program Files (x86)\TZXduino Uploader and look for the two files of the same name and change the .hex to .old.
4) Copy the two new files across. You may need Administrators approval to do this.
5) Upload to your TZXDuino in the normal way but choosing TZXDuino 1.13 as the firmware of choice and this will upload 1.14.

Any questions or games that you find do not work then please contact me.


  1. Hello, I have read that Motor Control can be used on some models of CPC, How is this done. I know there is a 2.5mm remote jack, but where do I plug that into on the CPC. Will this help with pauses in CDT files ? Thanks for all you help.

    1. I have read its for 664 and 6128 models with din cassette plug. Is there a way to retro fit the rem to a 464? Thanks in advance. Also im struggling to load atic atac for spectrum. no matter what .tap .tzx image i use. is there some sort of protection on this game?

    2. Atic Atac should work unless you have a 128/+2/A/B/+3 in that case you will need to either run it in 48k mode or if you Google there is a Poke for running Ultimate games on a 128k Spectrum.

      You can add a 5 pin DIN to a 464 so that you can use an external cassette or TZXDuino.
      Instructions on how to do so are on an earlier blog entry.

  2. One last thing, Where can I get the TZXDuino Updater from ? Thanks again in advance

    1. Found it, I struggling to update my TAXDunio becuase its not being recongnised by the PC. Its a TZXDUNIO RELOADED.

  3. TZXduino Uploader is found here > < there has been a recent update to fix a bug but all good now!

  4. How does the record mode work.
    Is there an option to select.
    Cant seem to work out how to use it any help would be fantastic.

    1. The meaning is, that files recorded as direct record, can now be played from TZXDuino. TZXDuino cannot record TZX from tape. It would need a own device simulating Z80 and tape loading schema, to to a realtime conversion from tape to TZX


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