Slightly offtopic...

[Steven M. Schultz]

Jorgen -

	Hello.  

> From: Jorgen Pehrson <jp at spektr.ludvika.se>

> I have a little problem installing 2.11BSD on my PDP11/83. I have a TK50
> tape with the distribution and a TK50 drive from a uvaxII. The controller
> board is a M7546 that comes from another vax. The original tape drive in
> this PDP is an TK25 drive which I have disconnected. How should the
> TK50controller be strapped? The TK25 answered at 17772520. Should the TK50

	That is the correct address for the first TS controller in the system.

	Despite the name ("TK25") the TK25 is a TS device and not a TMSCP 
	device.

> be there as well? (I haven't got a clue howthe QBus works... I know it's

	No.  The TK50 should be at the first TMSCP address which is 172150.

	You do not have to (indeed, you can not) set the vector on the M7546
	because TMSCP devices are 'programmable' - the kernel will assign
	a unique vector to the controller at boot time.

	Steven Schultz
	sms at moe.2bsd.com


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