Specifications

Switch Function
SW9 (not assigned)
LEDs
The following table details the values assigned to the LEDs on the DE1:
LED Function
L3:0 Active cartridge slot (0-15)
L9:4 (not assigned)
HDBDOS & IDE images
The SD/MMC slot on the DE1 enables you to use an SD card as an IDE device for use with
HDBDOS.
The SD card contains a straight sector-dump of an CF card image prepared either on a real Coco or
with the VCC (Coco emulator) SIDEUTIL program, for example. The latter utility provides a very
quick and convenient method for copying a number of floppy disk emulator (.DSK) images directly
onto the SD card. See the VCC Coco emulator site for details.
Once you have configured HDBDOS for your target media (note that only LBA mode has been
tested at this point), program the DOS image into the flash at either of the 1
st
two locations using the
DE1 control panel software. Select the HDBDOS image using the DE1 switches as detailed above.
Insert the SD card into the DE1, power-on the DE1 and program the SOF image. You should be
able to access the virtual floppy drives from HDBDOS as per usual.