tmedicci opened a new pull request, #17144:
URL: https://github.com/apache/nuttx/pull/17144
## Summary
* risc-v/espressif/ledc: Update common source code functions
- Updates the common source code for the LEDC peripheral used by
Espressif's RISC-Vs SoCs. This enables newer SoCs to be supported in the future
while maintaining backwards compatibility.
## Impact
Impact on user: No.
Impact on build: No.
Impact on hardware: Not yet: newer Espressif SoCs can be supported on NuttX
following this change.
Impact on documentation: No.
Impact on security: No.
Impact on compatibility: No. It's totally backwards compatible.
## Testing
Testing can be performed using any of the `pwm` defconfigs available for any
of Espressif's RISC-V-based devices (ESP32-C3, ESP32-C6, or ESP32-H2). The
behavior of the LEDC peripheral didn't change, and this PR's results are the
same as before it. This can be verified:
### Building
#### ESP32-C3
```
make -j distclean && ./tools/configure.sh esp32c3-generic:pwm && make flash
ESPTOOL_PORT=/dev/ttyUSB0 && picocom -b 115200 /dev/ttyUSB0
```
#### ESP32-C6
```
make -j distclean && ./tools/configure.sh esp32c6-devkitc:pwm && make flash
ESPTOOL_PORT=/dev/ttyUSB0 && picocom -b 115200 /dev/ttyUSB0
```
#### ESP32-H2
```
make -j distclean && ./tools/configure.sh esp32h2-devkit:pwm && make flash
ESPTOOL_PORT=/dev/ttyUSB0 && picocom -b 115200 /dev/ttyUSB0
```
### Running
Run the `pwm` application on NSH and monitor pin's output.
### Results
```
nsh> pwm
pwm_main: starting output with frequency: 100 duty: 00007fff
pwm_main: stopping output
```
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