May 22, 2019
Grinder - VME hardware
The oven is controlled by 3 VME computers.
These three are in most aspects identical peers.
The compliment of VME boards in each is identical, as follows:
- MVME147 - cpu board with memory and network
- Force OPIO - parallel IO board
- Force SIO - 6 port serial board (only the first 3 ports are used)
- Burr Brown MVP-906 - A to D board
- Micro Memory MM6702 - non volatile RAM
All of this was state of the art hardware back around 1986 when the oven was
designed and put together. It says a lot about it that it is still running
with few issues over 30 years later.
One notable difference is that computer 0 has a serial link to the rotation
control computer (an 8 bit 8751 machine).
Drivers
There are no special drivers for the MVME147, at least none that we wrote.
The MM6702 board is supported by a handful of routines in oven.c
adc.c -- driver for the MVP-906
sio.c -- driver for the Force SIO
dculib.c - includes support for the Force OPIO (written by Dave Harvey).
Have any comments? Questions?
Drop me a line!
Tom's home page / tom@mmto.org