compaq portable plus problems

[Roger Pugh]

On 3 Feb 2008, at 16:08, Curt @ Atari Museum wrote:

> Should work, the controller is a Western Digital, I don't know about 
> the Rodime drive, but I've done is numerous times with Seagate drives:
>
> debug command g=c800:5
>
> You should get into the WD monitor ROM and be able to do a low level, 
> make sure you set the interleave correctly, I've used 3:1 as it was 
> always a safe setting.
>

> Roger Pugh wrote:
>> Hi guys
>>
>> does anyone know the correct incantation to low level format an MFM 
>> drive, a rodime 351, driven by a Compaq controller board.
>>
>> I,ve tried with debug G=C800:5 to no avail.  there is no format 
>> program there!.
>> The driver board has no real description on it, just
>>
>> Compaq computer corp 1983 and  assy 61-031074-00
>>

checking on debug,  d=c000:0   the rom is compaq with no refrence to 
western digital,  although the board contains WD silicon.  |I think i 
have a homegrown compaq product here.  i know it was original in the 
m/c along with the HD.  Debug just locks up after calling the program.

roger