Recent content by robertcx

While working on some of my old computer boards, I've had to disassemble the monitor program to work out how it operates. This is particularly true for boards that did not come with a user manual, and for which no user manual exists on the web. Recent examples include the Intersil Concept-48 and...

I have recently acquired a rather rare ASCI u68 System X unit, which is based on the 6800 microcontroller. Here is some useful information for these systems: https://drive.google.com/drive/folders/1wdHDkwM6A9kEHPbDTRor-tSnDalaOts4?usp=sharing Unfortunately, my unit did not come with any...

I now have a FREE archive for all of the single board computers I have worked with here: https://drive.google.com/drive/folde...989yOOjjNMUcUR This contains monitor ROM and other firmware images, documentation including user manuals, data sheets, etc. Much of this info is available elsewhere on...

I have recently acquired a couple of very rare Intersil Concept-48 boards, which are based on the 8048 microcontroller. Here is some useful information for these boards: https://drive.google.com/drive/folde...O2?usp=sharing Unfortunately, my boards did not come with any documentation...