A Serial IO programmer for Renesas M16C, includes security PIN bypass.
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README.md

Renesas M16C programmer

This is the code for a Renesas M16C SerialIO programmer, based on an iCEStick FPGA devboard and Python host software.

Its most interesting feature is being able to crack the security PIN of the bootloader using a simple timing attack on the busy line.

To build and connect the adapter to the target, see adapter/README.md.

To run the host software to dump the target flash, see host/README.md.

The code has been tested to work against a Renesas M306K9FCLRP pulled from a Toshiba R100 Portege laptop.

License

All the code in this repository is licensed under a BSD-style 2-clause license.