Dilog DQ132 question

[Dave McGuire]

On Apr 3, 2008, at 11:52 AM, John A. Dundas III wrote:
>>   Well that was my thought...I've never used a 9-track drive on a  
>> 22-bit system running RSTS/E, so I was guessing a bit.  I thought  
>> perhaps the driver might implement bounce buffers if the board was  
>> operating in 18-bit mode.
>>
>>   Later last night (in total screaming frustration trying to get  
>> at least ONE of my five 9-track drives working) I discovered that  
>> the driver identifies the board correctly and says "extended  
>> features disabled" in the HA LI output, then init disables the  
>> device.
>
> Is _that_ particular device SYSGEN'd into the RSTS SIL you're  
> attempting to run?  IIRC, the boot-time code (HA LI) will show all  
> the devices it successfully identifies on the bus, but the RSTS  
> image you try to run after that may not be (and usually isn't)  
> configured to support all devices.  One good reason is because some  
> of the magtape controllers use the same CSR but are otherwise  
> incompatible. You may need to SYSGEN a new .SIL before you can  
> actually use the device.

   The .SIL I was running was generated with the DQ132 configured  
with extended features enabled.  That was probably why init disabled it.

   It's moot at this point, though, because I can't get the damn  
drive to work.  The universe just doesn't want me to have tapes on my  
PDP-11s, it seems.

           -Dave

-- 
Dave McGuire
Port Charlotte, FL