Serial I/O hangification

[Christopher H. <ch...@mu...>]

Is it just me?  If I type characters to blob when blob isn't reading
them (e.g. in the midst of flashing or erasing), the serial i/o hangs.
When the command prompt comes back, blob won't accept any input.

This is on BadgePAD 4 which is SA-1110/SA-1111.

I'm running at 115k2,8N1 with no flow control.

-ch