PREVIEW: CPLD-based XT-IDE adapter V2

in Prototypes by DP | 1 comment

The second version of our CPLD-based XT-IDE adapter PCB is about to go to the board house. In this update all the logic ICs have been moved to the CPLD, making it fully programmable.

The XT-IDE project is a Vintage Computer forum driven project to develop and manufacturer an 8-bit ISA IDE controller. It allows any PC/XT class machine to use modern IDE hard drives or Compact Flash devices for long term storage.

Our version of the XT-IDE controller replaces the 7400-series logic chips on the Vintage Computer forum design with a CPLD, a chip that can be programmed to replace dozens of individual logic chips. The logic is designed in software by drawing a schematic, and then uploaded to the CPLD. New logic circuits can be designed and tested without making new hardware each time.

A big thanks to pietja, J1mbo, alanh, and Vimark for helping out with this design.

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Comments

  1. G.Ray says:

    Nice … keeping the old going…

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