tmedicci opened a new pull request, #17064:
URL: https://github.com/apache/nuttx/pull/17064
## Summary
* boards/esp32[c3|c6|h2]: Fix GPIO function used by the button
- Fixes the function to select the GPIO behavior for the pins associated
to the board's button.
- Please note that for
[ESP32-C3](https://www.espressif.com/sites/default/files/documentation/esp32-c3_technical_reference_manual_en.pdf#section.5.12),
[ESP32-C6](https://www.espressif.com/sites/default/files/documentation/esp32-c6_technical_reference_manual_en.pdf#section.7.12)
and
[ESP32-H2](https://www.espressif.com/sites/default/files/documentation/esp32-h2_technical_reference_manual_en.pdf#section.6.13),
the pin `Function 1` corresponds to the GPIO mapping for all pins. That
function should be used when selecting the pin function. Please note that the
pin function on TRM starts from `0`. On NuttX, on the other hand, it starts
from `1`, and the corresponding pin function should be `INPUT_FUNCTION_2` to
select `Function 1`.
* Documentation: Add entry for ESP32-[C3|C6|H2]'s `buttons` defconfig
- Adds an entry on Documentation regarding ESP32-C3, ESP32-C6 and ESP32-H2
boards that implement the `buttons` defconfig
## Impact
Impact on user: Yes. Avoid unintended behavior regarding the on-board button.
Impact on build: No.
Impact on hardware: Yes. Impacts ESP32-C3, ESP32-C6 and ESP32-H2 boards.
Impact on documentation: No. But this PR also provides an entry for the
`buttons` defconfig in the respective board.
Impact on security: No.
Impact on compatibility: No.
## Testing
Build the corresponding `buttons` defconfig for the devices and press the
`BOOT` button in the board.
### Building
#### ESP32-C3
```
make -j distclean && ./tools/configure.sh esp32c3-generic:buttons && make
flash ESPTOOL_PORT=/dev/ttyUSB0 && picocom -b 115200 /dev/ttyUSB0
```
#### ESP32-C6
```
make -j distclean && ./tools/configure.sh esp32c6-devkitc:buttons && make
flash ESPTOOL_PORT=/dev/ttyUSB0 && picocom -b 115200 /dev/ttyUSB0
```
#### ESP32-H2
```
make -j distclean && ./tools/configure.sh esp32h2-devkit:buttons && make
flash ESPTOOL_PORT=/dev/ttyUSB0 && picocom -b 115200 /dev/ttyUSB0
```
### Running
Run the `buttons` application on NSH and press the `BOOT` button.
### Results
```
nsh> buttons
buttons_main: Starting the button_daemon
buttons_main: button_daemon started
button_daemon: Running
button_daemon: Opening /dev/buttons
button_daemon: Supported BUTTONs 0x01
nsh> Sample = 1
Sample = 0
```
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