[sebhc] My H8 Systems

Dwight K. Elvey dwight.elvey at amd.com
Fri May 28 19:24:24 CDT 2004

>From: "Dwight K. Elvey" <dwight.elvey at amd.com>
> Well, I finally connected everything up to see if
>it would boot from disk. As one might expect, no luck :(
>It is close. It selects the disk and turns on the motor
>but it is failing to step to track zero. The stepper
>motors seem OK. It is free with power off and locked
>with power on. I tried swapping the drives and also
>the controller card. Neither seemed to help. I started
>it both from the XCON8 routine ( that times out ) and
>I also started the disk init from 030.000. Both with
>the same results. The code seems to hange at 035.311
>This seems to be waiting for some RAM to be updated
>by an interrupt.
> Does anyone have a pointer to the floppy connector
>diagram on the webb for a 5-1/4 drive? I have this
>around someplace ( even have an original manual )
>but I never seem to find this stuff when needed. I
>get it running this weekend.

 I found the pinouts.

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