Commits on Jan 7, 2021

1. applet.interface.uart: fix auto-baud on single frames …

   When receiving a single frame that is at a faster baudrate than is
   currently configured, it is possible that you won't see a frame or
   parity error, especially if no parity is selected. This is because the
   line idles high, which looks identical to a stop bit.
   
   Even if you have parity enabled, there is a non-zero chance you'll see
   the high line state, and consider it to be a "valid" parity bit, when in
   fact it is the idle state.
   
   When receiving a stream of frames in quick succession, there is a higher
   probability that you will look for a stop bit in the next frame, and
   will thus see a frame error (or parity error).

   

   attie-argentum committed Jan 7, 2021
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2. applet.interface.uart: only report baud updates when outside a +/- 5%… …

   … window
   
   Because we are now updating the bit time whenever it changes, it is
   possible to get a lot of "switched to __ baud" messages, even if the
   change is minor and well within tolerance.
   
   This patch will only report baudrate changes when they exceed a +/- 5%
   window vs the previously reported baudrate.

   

   attie-argentum committed Jan 7, 2021
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