Both my MV/9800 and MV/9600 CPU’s have a Field Engineering (FE) SCP command which allow access to the Error Log for the PCB. So if a PCB fails a self-test (as my MV/9800 does) the only way to obtain detailed information about the error is to access the log. In addition the FE area also […]
I came across this Dasher emulator ‘DasherG’ which has been written by Stephen Merrony and is available on GitHub; https://github.com/SMerrony/DasherG I have switched to this emulator as it will allow me to provide much better quality screenshots and video for this site rather then taking photographs of my D464 console screen! Steve is a great guy […]
When my Data General Eclipse MV9800 system, arrived I was rather excited to find a number of DG SCSI II controllers in the chassis. One of these was presented to the outside world via a DB50 connector. Great I thought until I tried to use it with a standard SCSI DB50 to CN50 cable – […]
Something that is new to me is the Data General Burst Multiplexor Channel (BMC) bus. When I used a Nova 3 and Eclipse S140 the BMC bus did not exist. As far as I can tell this was introduced with the advent of the MV/8000 (Eagle). The BMC bus allows PCB’s to transfer data direct […]