Pony Prog still works on Win7 (so I've read). See: You might be surprised to see that your modern computer actually has a real hardware serial port. It is unlikely that there is a DE-9 connector on the back panel, but there might be a header on the motherboard to which you attach. Check the documentation or look for the port options in the BIOS (you may need to enable it in the BIOS before it will work). I don't know how well a USB-serial adapter will work since ponyprog probably toggles the handshaking lines at a high rate.
It may or may not (probably slow if it works at all). Bus Pirate will work to read and write the EEPROM, but you won't be able to just load and burn a.hex file. Bus Pirate is intended as a console device, giving you command-based access to the I 2C bus. So you can issue the appropriate commands to write data to the EEPROM or read from it, but it doesn't do this automagically.
Reading and Writing Immobilizer EEPROMs in Circuit by zilog357 Published September 27, 2010 Updated February 18, 2019 Sometimes when working with immobilizer EEPROMs, the ideal way of programming the EEPROM is by doing it while it is in the circuit, as removing it, programming and resoldering it back to the circuit, add a bit more of.
A person could certainly write a script to parse a.hex file and create a listing of commands to dump into the Bus Pirate terminal window.
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