With more and more things pointing to the PC, I’ve decided to really reduce the amount of work the PC has to do in its receive loop. I looked at Marco’s because his was designed to run (albeit in dos/dos...
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PC might be the problem!
I think I’ve found at least one problem here. My PC is at least one problem. Even though I’ve done extensive tests with the PC in the past, including measuring a 9us total cycle time, it appears the PC must...
new design on SX software
Welp, I’m having trouble tweaking my existing SX code. If I modify the timing of the current code, I’m getting all garbage output — even adjusting small amounts to one side or the other, produces much...
more SX to PC tests
Although I think I’ve long had this working good, I did some more tests just to verify. Latest numbers: Each cycle is about 15.8us, 2us per bit, 8 bits, this sounds fine. This does confirm, however, what I...
floppy.c’s mfm decoder
A couple days ago, whenever I got ahold of floppy.c, I wrote a quickie code stub that utilizes floppySectorMfmDecode from floppy.c of fellow (). Note you must use the mirrors to actually download anything…. This...
an output file from my project
DiskMonTools says it's reading 16200 bytes. My project is reading a filesize of 15892 consistently.
Here's the link to the sampled file.
