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Add Pulse DTR command

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MCUs like the ESP32 can be reset if the serial port DTR line is
pulsed for a short time.  You could just type CTRL-t d CTRL-t d
but that's a little awkward since you have to lift your finger
off the CTRL key to type the Ds.  Now you can just type CTRL-T D.

* Added new command "D" to pulse the DTR line.  I.E.  Toggle its
  state twice with a configurable duration between toggles.

* Added new config/command line option "--dtr-pulse-duration"
  to set the duration between the DTR state toggles.  The default
  is 100ms.
This commit is contained in:
George Joseph 2022-07-07 10:45:37 -06:00
parent a717631207
commit f24cee61e7
8 changed files with 42 additions and 0 deletions
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src/tty.h
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@ -36,6 +36,7 @@
#define KEY_CTRL_T 0x14
#define KEY_V 0x76
#define KEY_D 0x64
#define KEY_SHIFT_D 0x44
#define KEY_R 0x72
#define KEY_SHIFT_L 0x4C