Merge branch 'doc/get_started_override_options' into 'master'

doc: Add environent variable overriding to get started

See merge request idf/esp-idf!3160
This commit is contained in:
Ivan Grokhotkov 2018-09-05 11:02:47 +08:00
commit bcd384eb87

View File

@ -315,6 +315,33 @@ That's all what you need to get started with ESP32!
Now you are ready to try some other :idf:`examples`, or go right to developing your own applications.
Environment Variables
=====================
Some environment variables can be specified whilst calling ``make`` allowing users to **override arguments without needing to reconfigure them using** ``make menuconfig``.
+-----------------+--------------------------------------------------------------+
| Variables | Description & Usage |
+=================+==============================================================+
| ``ESPPORT`` | Overrides the serial port used in ``flash`` and ``monitor``. |
| | |
| | Examples: ``make flash ESPPORT=/dev/tty/USB0``, |
| | ``make monitor ESPPORT=COM1`` |
+-----------------+--------------------------------------------------------------+
| ``ESPBAUD`` | Overrides the serial baud rate when flashing the ESP32. |
| | |
| | Example: ``make flash ESPBAUD=9600`` |
+-----------------+--------------------------------------------------------------+
| ``MONITORBAUD`` | Overrides the serial baud rate used when monitoring. |
| | |
| | Example: ``make monitor MONITORBAUD=9600`` |
+-----------------+--------------------------------------------------------------+
.. note::
Users can export environment variables (e.g. ``export ESPPORT=/dev/tty/USB0``).
All subsequent calls of ``make`` within the same terminal session will use
the exported value given that the variable is not simultaneously overridden.
Updating ESP-IDF
================