Editing and adding programs on an HP15C

[Divasson]

(02-13-2024 10:49 PM)Pierre Wrote:  On the CalculatorStore website, the “How to use the Programming Cable” page is clear and precise:
"Warning: Connecting your calculator will erase all data in the user area: programs, data, matrices, memory configuration: all will be reset to default."

So if everything is deleted...

Hi, this is true with the current method of connection (“programming the board”). Other USB modes could be used that do not give access to firmware memory (which involves ERASE and RESET) and that could be used to read and write RAM without resetting the calculator.