|Front||This is an implementation of William R Cooke's floppy emulator
for the Arduino line of microcontrollers. William created this in 2019, but only now I build my own version. For now it
uses an Arduino Mega 2560 and some standard interface boards (proto-sheld, SD-card and RS-232c).
The code is functional identical to the original from William, but some extensions are planned like changing disk images via the debug/programming interface. This might take some time, so I made the page first.
|Back||The wiring of this connector requires a #725-F9 cable (the original #725 has a 25 pin conenctor).
The rubber bands are to keep the lid shut. The planned self clamping didn't work out as expected. The colour scheme is somewhat accidental, as the filament ran out twice during printing all the versions of the parts.
|Inside||The contents is an Arduino Mega 2560, an experiment shield and two breakout boards for the SD-card and serial port.|
|Front||This is a cheaper implementation based on the Arduino Pro Micro.
The code is functional identical to the original from William, but some extensions are still planned. At least there are lights indication disk (SD-card) access and SERIAL port activity.
|Back||The back side contains the connections to PX-4/PX-8 and the optional host interface, doubling as power input. There is also a reset button. The host interface allows changing the configuration; which disk image is mounted on which drive and a disk-level write protect. These are the functionality to be controlled from the PX-4/PX-8, but that functionality still has to be build.|
|Inside||Lots of space inside, but a smaller case, can become a problem with stiff cables.
The board is also prepared for a more discrete RS232C interface with separate MAX232, capacitors and sub DE-9 plug.
Last update: 2023-07-25