Components

	890-70-016-10-001101 - 01 x 16 x 2.54mm pitch single row male pins Preci-DIP	x 1
	A3B-14PA-2DSA(51) - 02 x 07 x 2.0mm pitch double row male pins Hirose Connector	x 1

Tools, APP Software Used etc.

KiCAD

Kicad

Description

M4ROM Programming Adapter for M4ROM_TANDY and M4ROM_27256

Programming adapter to program M4ROM_TANDY and M4ROM_27256 .

Solid electrical contact with the center pins is made the fact that the receptacle holes in the center of the M4ROM boards are slightly closer together than the pins on the programming adapter.

One pair of the 2.0mm pitch pins on top needs to be cut from a 2x7 header to form the polarity key.

Don't try to use flush cutters for that, the plastic will shatter and you'll be left with loose/bare pins.

A hobby knife on a cutting board works better, with a paper towel laid over the header to keep the small part from flying away.

How to program: https://github.com/bkw777/M4ROM

Schematic and Layout

https://github.com/bkw777/M4ROM

Download Gerbers

Feb 13,2023

632 views

M4ROM Programming Adapter for M4ROM_TANDY and M4ROM_27256

Special programming adapter to program M4ROM_27256 and M4ROM_TANDY option rom modules.

632

Published: Feb 13,2023

Download Gerber file 3

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File Last Updated: 2024/01/02 (GMT+8)

File update record

2024-01-0204:25:35

Gerber file is updated.

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