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Category Archives: microcontrollers

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Playstation Beatmania controller tested

01/08/2010 – 20:02

I got a Beatmania DJ turntable controller for the Playstation and it works perfectly with the Retro Adapter. It’s actually pretty simple; it emulates a digital pad. When the wheel is turned it just presses the up or down buttons on the d-pad. It doesn’t even use analogue for speed sensing etc.

By mojo | Also posted in electronics, Retro Adapter | Comments (0)

The MSF signal is a bit of a mess

28/07/2010 – 00:06

I am working on another clock, this time with MSF (Rugby/The time from NPL)  radio time setting. I know, I need to document the last one… Anyway, I finished the decoder today. The MSF signal is frankly a mess. Things seem to have been added and then removed over the years. There are four different [...]

By mojo | Also posted in avr, electronics | Comments (0)

Mouse+Joystick “computer” mode for the Retro Adapter

18/06/2010 – 18:18

I have just finished updating mouse support on the Retro Adapter so that it now supports a mouse and joystick simultaneously. I am still trying to think of a good name for it but for the moment I am calling it “Computer Mode” because it is ideal for emulating machines like the Amiga or Atari [...]

By mojo | Also posted in electronics, hardware, Retro Adapter | Comments (0)

Playstation 2 controller I/O error

12/04/2010 – 18:49

I have been tracking down the last few bug with the Saturn/SNES to Playstation converters. It turns out that some revisions of the PS2 and one PS2 to XBOX 360 converter both have messed up timing. The acknowledge pulses come after the next data byte has started. Official controllers can cope with that, but some [...]

By mojo | Also posted in electronics | Comments (0)

Playstation controller protocol quirks

22/02/2010 – 01:29

Today I discovered why I have been having a few compatibility problems with my Playstation interface code. The PSX uses a SPI bus. The device is supposed to put data on the bus when there is a high to low transition, then read the command on the low to high change. Sure enough the official [...]

By mojo | Also posted in avr, electronics | Comments (9)

Saleae Logic review

10/07/2009 – 22:01

After a lot of consideration, I decided to get a Saleae Logic logic analyser to help debug my AVR code. There are a few reviews already floating around but little detail on people’s experiences of actually using the thing, so here are mine. The package is quite nice. You get the Logic, which is tiny, [...]

By mojo | Also posted in avr, electronics | Comments (0)

Retro Adapter V2 PCBs arrived!

19/05/2009 – 19:41

The first batch of PCBs is here, and looking good! Spot the deliberate mistake :) It’s not a problem though, you can easily read the backwards text.

By mojo | Also posted in avr, electronics | Comments (0)

Retro Adapter update 11/05/09

11/05/2009 – 14:39

The circuit board designs for the Retro Adapter have been finished and sent off for manufacturing at Seeed Studio. Hopefully everything will be fine and I can then do a larger production run, and start selling kits and finished units. This is the first PCB I have had professionally made, and the first time I’ve [...]

By mojo | Also posted in avr, electronics | Comments (0)

Retro Adapter V2 update

21/04/2009 – 18:43

This evening the Retro Adapter V2 site will be updated. There are two major changes. I have abandoned the idea of using a DB25 in favour of a DB9, with a DB9-DB9 jumper box being used as the case. I managed to cram everything in to the space, with only one surface mount component (the [...]

By mojo | Also posted in avr, electronics | Comments (0)

Electronics projects updated

09/02/2009 – 01:02

I updated denki.world3.net with some corrections and more details on the Retro Adapter V2 and a special Sega Saturn to USB adapter I made. More details on the Retro Adapter V2 to follow. Hopefully when I’ve finished working on the prototype I will be able to so a small run of kits. From the volume [...]

By mojo | Also posted in avr, electronics | Comments (0)
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