robert-hh 13dceaa4ea esp32/machine_uart: Change sendbreak time to be at least 15 bit times.
It used to be 10 bit times, which is too short.  The break state must be
longer than a regular character time, at least 13 bit times.  This is now
implemented by reducing the baudrate while sending the "0".  The break time
will now vary with data length and parity setting, but will at least be 15
bit times.

Tested with a GENERIC_SPIRAM, GENERIC_C3 and UM_TINYS2 board.
2022-08-23 17:22:15 +10:00
..