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Remake VIDEO-MPF-I

A PAL-compatible display for the Microprofessor MPF-IB and MFP-IPlus

Remake VIDEO-MPF-I
 
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Story

he VID-MPF-I v2.0 is an updated remake of the Bardehle Electronic Video-MPF-1 v1.2 board. This is a video board for the Microprofessor MPF-1(B) and IPlus line of single board computers.

The board also works as a supported TV-interface on the MPF-IPlus with the 2.0 version of the monitor.

 

Some components are replaced by more common logic, and the ROM is cleaned of what appeared as debug code and experimental features. Additional routines, useful for testing were added. The current ROM footprint is less than 2 k Byte. The socket is designed to take a 4 k Byte ROM too, so plenty room for more features.

The current board design has some (correctable) flaws, build this only when you know how to patch PCBs.

 

Links:

https://www.electrickery.nl/comp/mpf1/VIO-MPF-IB/index.html (info and board patch data)

https://github.com/electrickery/VIO_MPF_I (firmware and KiCAD files)

 

 

There are two schema's attached, the actual build and tested one, which required some patching. Another has the flaws corrected, but it is not produced, build and tested. KiCAD files for both are on the Github page.

 

For the MPF-IPlus support as TV-interface, there is a modified version of 2.0 that  fixed two problems; The original monitor mangles some characters, and the display timings were not very PAL-compliant, resulting in no or an instable screen.

 

Project reposted with permission. If you want to explore more projects, please follow the author: fjkraan (Hackaday). He has many wonderful projects and is an excellent maker. Enjoy it! :)

Schematic and Layout
  • VIO_MPF_schema_v2.1.pdf

    VIO_MPF_schema_v2.1_742724391683048f4579ce.pdf
    Download(1)
  • VIO_MPF_schema_v2.0.pdf

    VIO_MPF_schema_v2.0_97851796068304905bbd37.pdf
    Download(1)

Remake VIDEO-MPF-I

A PAL-compatible display for the Microprofessor MPF-IB and MFP-IPlus

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