FDC-SDS is a Linux implentation of the Serial Drive Communications Protocol for the FDC+ Enhanced Floppy Disk Controller for the Altair 8800.
./autogen.sh
./configure
make
sudo make install
The FDC+ serial drive can operate at one of these baud rates: 403.2K, 460.8K, 230.4K, 76.8K, 38.4K, 19.2K, and 9600 baud. FDC-SDS only supports 230.4K (default), 460.8K, 76.8K, 38.4K, 19.2K, and 9600.
If the baud rate is changed in the FDC-SDS server, the corresponding change must also be made on the FDC+. Baud rates are changed in the FDC+ using the monitor.
Numerous disk image files of original Altair software are available via links on the FDC+ web page. Images files have a .dsk extension. You can also recognize disk images by their file size. Eight inch disk images are 330K, Minidisk images are 75K.
The FDC-SDS server is indifferent to whether an eight inch image or Minidisk image is loaded, however, the image type loaded must match drive type selected on the FDC+.
fdcsds -p /dev/ttyUSB0 -0 cpm22.dsk