Subject: fun with terminals
To: None <>
From: Chuck McManis <>
List: port-vax
Date: 01/26/2001 21:18:43
Ok, well we've had our bit of fun, and this is what we've discovered:

	NetBSD 1.5 supports the DHV11 as ttyS0 thru ttyS7
		   supports the CXY08 *in DHV11 mode* also as ttyS0 thru 7

The CXA16 is not supported in any mode.

Now I don't actually have the setup manual for the CXA16 but I do for the 
CXY08 (I wish I had the technical manual for both of them!) And since the 
same switches appear on both, and at least the CSR and VEC switches are the 
same, it seems like the first switch (E36-1) should also have the same 
function on both (DHV vs DHU mode). I'm guessing that for some reason since 
it _isn't_ actually a DHV11 and does have 16 lines, only 8 are being 
initialized or something but basically I don't have a clue.

I would like to get the CXA16 working because it has this nice harmonica 
block of MMJ connectors whereas the CXY08 has a four-headed DB25 cable 
assembly. My VT320 collection would prefer to talk MMJ :-) Of course I can 
make sort of DB25 to MMJ adapters but that is both a lot of work and makes 
the wiring look clunkier than it needs to be.

It would be interesting to find out what is needed to support DHU mode 
(this uses the DMA engine vs the DHV polled mode)