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boards/xtensa/esp32/esp32-wrover-kit/README.txt: Document the

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configurations.

Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
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Abdelatif Guettouche 2021-01-11 17:44:07 +01:00 committed by Alin Jerpelea
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boards/xtensa/esp32/esp32-wrover-kit/README.txt
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@ -43,3 +43,37 @@ Buttons and LEDs
and USB activity.
There is an RGB LED available for software.
Configurations
==============
nsh
---
Basic configuration to run the NuttShell (nsh).
wapi
___
This is a congiuration to test the Wifi driver using WAPI.
The Wifi passphrase and SSID can be configured from menuconfig, then once
booted you can check if an IP address was assigned:
nsh> ifconfig
If not configured at startup, you can connect to a network with the following:
wapi psk wlan0 mypassword 1
wapi essid wlan0 myssid 1
gpio
---
This is a test for the GPIO driver. It includes the 3 LEDs and one,
arbitrary, GPIO. For this example, GPIO22 was used.
At the nsh, we can turn LEDs on and off with the following.
nsh> gpio -o 1 /dev/gpout0
nsh> gpio -o 0 /dev/gpout1
We can use the interrupt pin to send a signal when the interrupt fires:
nsh> gpio -w 14 /dev/gpint3
The pin is configured to as a rising edge interrupt, so after issuing the
above command, connect it to 3.3V.