At 10:17 PM 8/18/98 +0200, you wrote:
>Start the turboR without a disk in the drive, he reads the files of the
>first disk inserted
>and when you change de disk he will not update the files to the new disk.
This happens because DC remains high all the time, which means "disk not
changed".
>Start the tubo R with a (MSX2 formatted) disk in the drive, everything
>works fine
>and changing the disks is no problem
>I have no knowledge abouth the turbo R so i left it like that.
If you start with a disk formatted under DOS1, the turbo R boots in DOS1
mode. DOS1 doesn't cache the bootsector and directory, so the fact that the
disk change signal doesn't work is not a problem then.
>When i look to the diagram of the turboR the drive has a DC and a ready
>signal
>a normal drive will not have then both.
The PC drive I used had neither. I modified it to return READY on pin 34
and DC on pin 2. Actually, I used the ground instead of DC, so the turbo R
re-reads the bootsector + directory every time. And my READY signal is not
very good either, because it returns "ready" too soon: before the motor is
spinning fast enough. So the new drive works, but is very slow.
>And normally when there is a DC signal also a DC reset signal must be
>present ??
There is no seperate reset signal for DC. I think one of the normal signals
resets DC, but I don't know which signal does that. My guess would be
MOTOR_ON or READY. Does anyone know for sure?
Bye,
Maarten
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