17 Oct
2007
17 Oct
'07
11:36 p.m.
Andrew Lynch wrote:
There has been lots of talk about these universal
floppy controller devices
and I for one would LOVE to see one done but so far nobody has made one
work. The closest thing I have seen is either the external floppy drive and
compaticard combination or the parallel port Backpack external floppy drive
from Microsolutions. If anyone actually makes the universal floppy reader,
please put me down to buy one as well.
I've got what is essentially a USB Catweasel clone, built and tested in a
'virtual' environment (i.e. fed a Verilog core test data and watched it
trundle away and work). The schematics are almost completely entered into
KiCAD, but I haven't started the PCB yet. The Verilog HDL for the controller
CPLDs (there are two - the Acquisition Controller and the 'IOED' I/O Expansion
Device that controls the low-speed I/O lines via I2C) is done, aside from the
inevitable bugs I've missed.
What I need to do is get the schematics done - which is basically adding the
output buffers and wiring them to the IOED (the ACQCON stuff is already done).
Then it's PCB design time... I'll probably wire up the prototype with a
Roadrunner pen.
--
Phil. | (\_/) This is Bunny. Copy and paste Bunny
classiccmp at philpem.me.uk | (='.'=) into your signature to help him gain
http://www.philpem.me.uk/ | (")_(") world domination.