On the eve of ‘challenge I have retrieved my VT-180 from the “shelf of good intentions”. I have taken photos of the two main boards and powered the machine up to see what happens.
The first board basically the Z80 board. The second is a VT-100 terminal (if I remember correctly) and they talk to each other over the flat ribbon cable in the second photo.
At the moment I don’t have the processor board in place as I think the VT side should come up without it. However, the current state of play is less than ideal.
Roll on Tomorrow 🙂
I was given this VT-180 machine a few years ago and after a quick look, I put it on the shelf to get round to later.
Retrochallenge 2016/1 is the later it’s been waiting for.
My aim this January is to mend this rather under rated but rather splendid CP/M-80 machine and get it to live, breathe and jump again.
Quick, to the Bat Cave.
I’ve been thinking about this on for a while. I even considered this as a Retrochallenge but I grasped the nettle and just did it.
I now have a SCSI2SD card adapter on my PDP-11/53 running RT-11 🙂
I could show you pictures but there’s nothing to see really.
This is the rather excellent page that told me how and this is where you can get your own adapter from.
This is what it looks like… Yea!
Retrochallenge 2016 will soon be upon us. This month long chance to dust off old kit and play about a bit is always great fun and a chance to get round to stuff I’ve wanted to have a crack at for ages.
Tradition dictates that I try in all earnestness to achieve something but I don’t hit my target. I’m not sure that it matters.
So, what to go for this time around? I’m not too sure yet. I certainly have a number of loose ends to tie up. I also have a whole load of new threads to pick at.
I quite like the idea of getting a SCSI/SD card adapter working on my PDP-11. I’ve got as far as plugging it in. Could January be its month?
Last month I found out about DEC’s T11 chip. This was
"a microprocessor that implements the PDP-11 instruction set architecture (ISA) developed by Digital Equipment Corporation. The T-11 was code-named "Tiny". It was developed for embedded systems and was the first single-chip microprocessor developed by DEC."
I’ve found a few designs for systems that use it, including DEC’s own development board, and I rather like the idea of building a small single board computer based on that design. A bit like the designs that Grant Searle as published for other retro processors.
Also, I promised myself that I’d spend some time on the DEC Robin AKA VT-180 CP/M machine that’s been on the shelf of “good intentions” for a few years now.
Oh well, still a few of weeks to choose before kick-off on Jan the 1st. Wish me luck.