Serial Comms

[Braehead]

Purchased a couple of these recently and very impressed. Thank you for such a great implimentation.

Anyway, random idea: When not actually debugging with dW, the Reset pin could be put to use for a simplex serial port when in STK500 mode. As the Reset pin has 3 modes: Reset, GPIO and dW. It should therefore be possible to use the Reset pin as a bi-directional simplex serial for traditional diagnostics messages when dW is not required. You already have some serial comms on this pin, it probably won't be in use by the user for anything other than a reset. So all feasable. I don't know how much code with need to sit in the MCU to make this work. But I would be happy to assist / develop / test / etc. Most of the comms would be from the MCU (most likely) and you could limit it to out only if bidirectional would be too complex. But not much different to say I2C or any other simplex protocol.

This would add another feature to the shield without the need for a hardware change to impliment a working solution.