ILPer v1.5, ILPilbox v1.5, ILScope v1.3, ILCtrl v1.11 Update

[Christoph Giesselink]

(02-05-2015 02:58 PM)charger73 Wrote:  How does the IL software detect an HP-82401A rev. 1A module? Do you have more technical info?

Hi Tobie,

for getting the 12 byte media physical attributes from the drive you have send a DDT 7 to the disc drive before fetching the data with SDA. In the 1A module firmware sending the DDT 7 frame is missing and so the drive answer on the SDA request with the SDA answer of the last DDT setting. The last DDT setting was DDT 6 for getting the 2 byte last sector number. So instead of getting the 12 byte media physical attributes I get 6 times the 2 byte last sector number which I already know. On this wrong answer (the missing DDT 7 frame is unique) I detecting the HP-82401A rev. 1A module.

Detecting this behavior of the 1A module was the work of Jean-Francios. My job was fixing a bug in ILPer 1.45 and earlier, so that ILPer behave in the same way like the real 9114 drive on the buggy initialization sequence.

Christoph