Changes

A 50 pin header provides easy access to most address lines and relevant (to operation) CPU/RAM/Flash lines. This will be convenient to run a logic capture during boot and operation later.

The strings are very interesting indeed, not just a standard version string - they are command strings. As this device has no screen, a low level diagnostic routine is inferred from their discovery. Looking closely at the last string or two, I was worried that it might be corrupted as there are some missing letters in the string - (ADAT Sync port di onnected and Dectected rather than Detected).