Hardware, RC2014, IDE disk drive interface

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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.

IDE disk drive interface
IDE disk drive interface by Ed Brindley

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