UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - How do I convert hex files to binary for use in the MK14 mame VDU emulator?

SiriusHardware · 5th Dec 2022, 9:03 pm

Not as it stands, it reads the Intel Hex file (in this case from the SD card of a Raspberry Pi) and drives a small network of optocouplers which are connected to the keypad edge connector of the MK14 so the Pi can 'press' keys on the physical MK14.

DeltaAlpha52 created an Arduino 'spin' of the project in which a Python program on a host PC outputs single characters over a serial link to an Arduino which performs the character-to-keypad keypress translation. I suppose it wouldn't be too hard to get the Python program to write its key press output to a file instead.

Keys 0-F are transmitted as those characters, keys 'Go', 'Mem', 'Term' as 'G' 'M' and 'T' respectively - key 'Abort' is transmitted as 'Q' since 'A' is already taken, and reset is 'R'.

5th Dec 2022, 9:03 pm	#15
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,586	Re: How do I convert hex files to binary for use in the MK14 mame VDU emulator? Not as it stands, it reads the Intel Hex file (in this case from the SD card of a Raspberry Pi) and drives a small network of optocouplers which are connected to the keypad edge connector of the MK14 so the Pi can 'press' keys on the physical MK14. DeltaAlpha52 created an Arduino 'spin' of the project in which a Python program on a host PC outputs single characters over a serial link to an Arduino which performs the character-to-keypad keypress translation. I suppose it wouldn't be too hard to get the Python program to write its key press output to a file instead. Keys 0-F are transmitted as those characters, keys 'Go', 'Mem', 'Term' as 'G' 'M' and 'T' respectively - key 'Abort' is transmitted as 'Q' since 'A' is already taken, and reset is 'R'.