raiden00pl opened a new pull request, #18916:
URL: https://github.com/apache/nuttx/pull/18916
## Summary
BREAKING CHANGE: separate pulse count feature from PWM driver.
Coupling PWM driver with pulse count feature was bad decision from the
beginning, these are two different things:
- PWM is a modulation scheme: it continuously represents a value by varying
duty cycle, usually at a fixed frequency.
- Pulse train generation is a finite waveform transaction: generate N
edges/pulses with selected timing, then complete.
This change introduce a new pulse count driver with new API. Now user can
generate pulse train by providing:
- high pulse length in ns
- low pulse length in ns
- pulse count
All architectures supporting pulse count have been modified.
## Impact
Breaking change. Users must migrate their code to use the new driver with
new API.
## Testing
TODO: I can test on stm32 archs. All stm32 and at32 are based on the same
stm32 driver. I'll add it later.
Help with tests would be useful for tivia and tlsr82 boards.
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