Commodore 64 cartridge dumping update

Today I decided to convert the contents of the ROM chip I had dumped with my EPROM reader to a .CRT file, using VICE’s cartconv tool:

cartconv.exe -r -t normal -i "input.bin" -o "output.crt" -n "C64-Diagnostic-ROM-1"

I then tested the .CRT in VICE, which seemed to work quite well indeed:

Diagnostic cartridge ROM I dumped with my EPROM reader by Luigi Di Fraia
Diagnostic cartridge ROM I dumped with my EPROM reader

There was a bug in my reader for which I was accidentally missing the first byte of the ROM within a dump: the bug is also appearing in the video I had shared. However, such bug has since been fixed and I have been obtaining 100% consistent results while dumping the ROM over and over again, which is great news.

Stay tuned for more!

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Commodore 64 cartridge dumping test circuit

Today I managed to put together the test circuit for my Commodore 64 cartridge dumping hardware, while I wait for the first batch of PCBs to be manufactured:

Commodore 64 cartridge dumping test circuit

In the video the output is off by 1 byte, but I already fixed the issue as Tommi was very quick to make me notice 🙂

Stay tuned for more!

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Commodore 64 cartridge dumping hardware

As suggested a while back by Kirben, I decided to try and make a simple hardware for dumping Commodore 64 cartridges.

After work today I designed a prototype, allowing for some future extension/spare resources:

C64CartDumper Schematics by Luigi Di Fraia
C64CartDumper Schematics

I’ve also sent the PCB design to manufacturing, so as soon as it comes through I shall have a go at it.
Can’t promise anything, but it shall be a good chance to test something new 🙂

Stay tuned!

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New IECHost build

One of the PCBs I had manufactured a while ago, referred to as IECHost “white knight” version, has recently come to life as I decided to put one together.

IECHost: "white knight" version by Luigi Di Fraia
IECHost: “white knight” version

I designed this version for a couple of reasons, one being the use of a different DIN connector for the IEC bus, that I was able to source from a new stock.
Nonetheless, if a 3D-printed case was ever made for the vanilla version of IECHost, it would be reusable for this one too.

Note that this build is NOT available for sale: this is my own build. In fact, I keep one build of each and every device I ever designed, along with prototypes that were never available to the general public.
However, those interested in one can just ask for it when ordering for an IECHost DIY kit.

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Another fully built Tiny C2N Monitor for sale

Today I felt like putting together another Tiny C2N Monitor to sell for somebody not comfortable with soldering SMD components. Details of the unit for sale are available here.

Tiny C2N Monitor for sale by Luigi Di Fraia
Tiny C2N Monitor for sale
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IECHost GUI client version 3.8 released

Version 3.8 of the IECHost GUI client is now available within my Software page.

This is a major release for new features. Details of the changes are available through the issue tracker.

IECHost multi-threaded client: about dialog by Luigi Di Fraia
IECHost multi-threaded client: about dialog
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Progressing with the inventory

As part of the sorting out exercise I am going through, I brought back in good shape the DC2N2 test bed I had put together in 2013/2014. Not only I did tweaks to the wiring of the circuit, but I also did a few firmware changes.

DC2N2 development board updated by Luigi Di Fraia
DC2N2 development board updated

As I was at it, I also monitored current consumption while dumping tapes, similarly to what I did a while back for DC2N3, DC2N4-LC, and DC2N5-LC. The figure is pretty small, peaking at 140 milliamps.

Stay tuned for more as I bring more test beds back in good shape!

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