[sebhc] H17 ROM and disk info

Steven Parker sp11 at hotmail.com
Sat May 22 15:31:03 CDT 2004

Oh, one more thing...

>... or do you think it would be OK to just swallow it on writes and 
>regenerate it on reads.

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 

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.


- Steven

Best Restaurant Giveaway Ever! Vote for your favorites for a chance to win 
$1 million! http://local.msn.com/special/giveaway.asp

Delivered by the SEBHC Mailing List

More information about the Sebhc mailing list