fdcavalcanti opened a new pull request, #19976:
URL: https://github.com/apache/nuttx/pull/19976
## Summary
<!-- This field should contain a summary of the changes. It will be
pre-filled with the commit's message and descriptions. Adjust it accordingly -->
* Documentation: add gpio defconfig to esp32p4-tab5 board
Adds documentation for the GPIO defconfig on esp32p4-tab5 board.
* boards/risc-v: GPIO support on esp32p4-tab5
Adds GPIO defconfig on M5Stack Tab5. The example has one GPIO output
and one GPIO interrupt.
This PR adds GPIO support for the M5Stack Tab5 board.
The GPIOs available on the M5-Bus on the backside of the device are defined
for easier reference.
## Impact
<!-- Please fill the following sections with YES/NO and provide a brief
explanation -->
Impact on user: New defconfig added for GPIO control.
<!-- Does it impact user's applications? How? -->
Impact on build: No.
<!-- Does it impact on building NuttX? How? (please describe the required
changes on the build system) -->
Impact on hardware: Only affects `esp32p4-tab5` board.
<!-- Does it impact a specific hardware supported by NuttX? -->
Impact on documentation: Adds documentation for the new defconfig.
<!-- Does it impact the existing documentation? Please provide additional
documentation to reflect that -->
Impact on security: No.
<!-- Does it impact NuttX's security? -->
Impact on compatibility: No.
<!-- Does it impact compatibility between previous and current versions? Is
this a breaking change? -->
## Testing
### Building
<!-- Provide how to build the test for each SoC being tested -->
- ./tools/configure.sh -S esp32p4-tab5:gpio
- make and flash
### Running
GPIO output test:
```
nsh> gpio -o 1 /dev/gpio0
Driver: /dev/gpio0
Output pin: Value=0
Writing: Value=1
Verify: Value=1
nsh> gpio -o 0 /dev/gpio0
Driver: /dev/gpio0
Output pin: Value=1
Writing: Value=0
Verify: Value=0
nsh>
```
GPIO interrupt test:
```
nsh> gpio -w 1 /dev/gpio1
Driver: /dev/gpio1
Interrupt pin: Value=0
Verify: Value=0
nsh>
```
### Results
GPIO operates as expected both output and interrupt modes (visual/manual
inspection).
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