Not sure if the BT radio chip was programmed with anything. Has anyone tried sending it (random) data out of the box? Anyways.... Available under the RL78/G1D page you can find quite a few Sample Programs. www.renesas.com/.../rl78g1d.html I find the following fairly interesting: www.renesas.com/.../r01an3130ej0100_vuartapp.pdf Again, programming the RL78 will require an E1 Debugger/One wire UART as described here: renesasrulz.com/.../programming-the-rl78-flash-memory-using-an-external-device.aspx There is a Renesas Flash Programmer tool that can allow you to program hex files directly into the RL78. I hope this helps solve a few puzzles.
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