XYCOM XVME-531 Thermocouple output module

In this case, a focused consolidation effort on the software added auto-detection for different types of display and menus to select between the different types of boards. This has greatly improved the situation and we will soon have only three programs for more than 800 power converters. Early computer buses such as the G-64 bus provided effective hardware solutions at a time when hardware development was difficult. CAD tools were non-existent and testing methodologies rudimentary. Just using a PCB was not inevitable – cards based on wire wrap were still being produced in the early eighties. The software component of the overall system was limited by necessity – processors were slow and memories were small. The numerous hardware permutations that could be created thanks to the modular nature of the system were manageable, even with the primitive software development technique of “clone and modify”.

Software Tools 

The first development environment chosen for G-64 software at CERN used the C language with the OS9 operating system, but it required a license for each system so alternatives were quickly investigated. Soon after the licence free OmegaSoft Pascal compiler running under the Flex operating system was selected by many developers including the developer of software for the power converters in the PS complex. His programs did not include Flex OS, it was just used on the development system to run the compiler and manage the source files. Porting to the new environment took a considerable effort at the time and not all the teams made the move. To this day, some systems in the PS remain written in C under OS9.

Flex OS was designed in late seventies. 

The machine used for software development was a G-64 backplane populated with an MC6809 CPU board, memory board, two 3.5” DD floppy drives, serial interface module to connect a serial terminal and printer, all in a nice 3U “portable” case with a power supply. Eventually, Flex OS and the Pascal compiler reached the end of their development lives, but as stable and mature products they continued to fulfil the needs of the software developers so the software support was not jeopardized. What became much more critical was the hardware platform on which it ran, which was frozen in 1983.

Quality assurance service

1. We provide high-quality parts of various brands, and you will find full

The model meets your needs.

2. For models that have been out of production for many years, we have all hard to find parts, so we can directly find us to solve all problems for you at one time.

3. If you are in a hurry to use this product, we can dispatch it for you.

4. All products can enjoy a one-year warranty service,

5. Our products are new and unused.

6. If you need a large quantity, you can contact us and I can offer you a discount.

7. You can ask me about the price and more information about the product via email. We welcome you