8255 based IDE disk drive interface
If you use the compact flash module AND the IDE module at the same time on the RC2014 beware that drive C: und D: are assigned to IDE0:0 and IDE0:1 (CF-card) and drive E: and F: to PPIDE0:0 und PPIDE0:1 (hard disk)!
Of the 8 possible CF-card CP/M slices, only the first two can be used. The remaining 6 are still present but not visible and cannot be used.
I tested both, 2.5" notebook and 3.5" hard disk drives. The module works perfectly. But you have to take care of the power supply. The 3.5" hard disk needs a 12 Volt connection anyway. But also the small 2.5" hard disk needs a lot of power. I connected a second 5V connector with 1.2 Ampere to the IDE module.
- Ed Brindley:
- tindie.com / IDE Adapter PCB for the RC2014
- RC2014 main page