Jan. 25th, 2013

torkell: (Default)

My Bus Pirate is now mostly successfully simulating... something (it wouldn't be a Mystery Project if I told you what, now would it?). It's got enough intelligence to handle the packet framing and generate suitable responses, but I'm going to leave decoding the actual payload to a PC program (if for no other reason than it's rather hard to display 2-bit graphics over a serial console).

Anyway, today's teaser is the output from the Bus Pirate when in my Mystery Project Mode:

Mystery Project output )

Some hints: the wire protocol is SPI. The two bytes in the curly braces are a command code followed by a flags byte. The bytes in the square brackets are the payload data. The four lines after that each contain a byte received followed by a byte transmitted (those are the only lines that show data transmitted by the Bus Pirate). Not included are the sync bytes (0x88 0x33) and length bytes.

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