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docs/esp8266: Add instructions on entering programming mode manually. 

This adds to the ESP8266 tutorial instructions explaining which pins to
pull low to enter programming mode.

Commit made originally by @ARF1 in #2910.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2021-05-04 14:24:17 +10:00
parent 4154ffbcba
commit 2bf1beef5c
1 changed files with 8 additions and 0 deletions
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8
docs/esp8266/tutorial/intro.rst
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@ -75,6 +75,10 @@ the DTR and RTS pins wired in a special way then deploying the firmware should
be easy as all steps can be done automatically. Boards that have such features be easy as all steps can be done automatically. Boards that have such features
include the Adafruit Feather HUZZAH and NodeMCU boards. include the Adafruit Feather HUZZAH and NodeMCU boards.
If you do not have such a board, you need keep GPIO0 pulled to ground and reset
the device by pulling the reset pin to ground and releasing it again to enter
programming mode.
For best results it is recommended to first erase the entire flash of your For best results it is recommended to first erase the entire flash of your
device before putting on new MicroPython firmware. device before putting on new MicroPython firmware.
@ -113,6 +117,10 @@ the firmware (note the ``-fm dio`` option)::
If the above commands run without error then MicroPython should be installed on If the above commands run without error then MicroPython should be installed on
your board! your board!
If you pulled GPIO0 manually to ground to enter programming mode, release it
now and reset the device by again pulling the reset pin to ground for a short
duration.
Serial prompt Serial prompt
------------- -------------