[sebhc] H17 ROM and disk info
Dave Dunfield
dave04a at dunfield.com
Sat May 22 15:55:46 CDT 2004
Hi Steven,
>Remember that generally only "init" would write both the header and data.
>Otherwise the header would be read and the data written. That's why every
>sector has two separate leader/sync/data/check groups with a small gap in
>between.
It occured to me that it probably works this way - and I was going to ask
you.
>I put a couple of test programs from the H17 service manual in the tape
>software area. One checks the on-board write-protectable memory and the
>other is for checking/adjusting rotational speed. At ideal speed, there
>should be a "200" displayed in the memory location on the front panel.
Thanks, I'll check it out.
Regards,
Dave
--
dave04a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Vintage computing equipment collector.
http://www.parse.com/~ddunfield/museum/index.html
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