9 Oct
2005
9 Oct
'05
1:02 p.m.
On Sun, 9 Oct 2005, Scott Stevens wrote:
But does that work without digging in further? Does a
PC/XT-era floppy
card replicate a PC-AT diskette controller? I am asking, since I've
never tackled such a project.
XT FDC works fine in AT.
BUT,...
MOST XT FDCs only support 250K data transfer rate, and therefore, only
"360K" and "720K". ... unless you change the drive motor speed to
150/180 RPM :-)
Look for XT FDCs that support 500K data transfer rate. "Compaticard" is
the most popular, but there are LOTS of others. Those'll do everything
that the AT FDC would. While you're at it, look for 125K data transfer
rate for 5.25" FM, and 1000K data transfer rate for 2.8M.