So Simple I'm Stumped!
09-Feb-94 01:34:44
Sb: #39404-So Simple I'm Stumped!
Fm: John Draper 76703,4322
To: Tom Eshelman 73717,3446
Well, Tom, I still tend to think that oyu have a MaxTransfer problem, thought
it may have something to do with sector sizes. Is the Fuji a 512 byts/sector
device?
For the next thing to try, grab RDB.LZH from LIB 11. It's a little thing I
wrote that allows you to save the RidgidDiskBlocks, which are what tells the
system what sort of device you have, and a lot of other things about it. With
this program, SAVE a file containing the RDB of the Fuji, and take a look at
the MaxTransfer value. This can be found in each partition table as follows…
0200: 50415254 00000040 672B05CF 00000007 PART…@g+.O….
0210: FFFFFFFF 00000000 00000000 00000000 …………….
0220: 00000000 03444831 00000000 00000000 …..DH1……..
0230: 00000000 00000000 00000000 00000000 …………….
0240: 00000000 00000000 00000000 00000000 …………….
0250: 00000000 00000000 00000000 00000000 …………….
0260: 00000000 00000000 00000000 00000000 …………….
0270: 00000000 00000000 00000000 00000000 …………….
0280: 00000011 00000080 00000000 00000001 …………….
0290: 00000001 00000046 00000002 00000000 …….F……..
02A0: 00000000 00000002 00000B6F 0000001E ………..o….
02B0: 00000000 00FFFFFF FFFFFFFC 00000000 ………..|….
02C0: 444F5301 00000000 00000000 00000000 DOS………….
The above was obtained with a 'type <file> opt h', and contains the
MaxTransfer value of 0x00FFFFFF, three longwords before the 'DOS' ID.
It might be worthwhile playing with this value to see if it makes a
difference. If not, it might be time to chat with ICD about their
device software, asking about support for the Fuji.