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Merge branch 'feature/add_mcpwm_carrier_clk_source' into 'master'

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feat(MCPWM): Add mcpwm carrier clk source

Closes IDF-8029

See merge request espressif/esp-idf!25342
This commit is contained in:
Chen Ji Chang
2023-08-15 18:04:08 +08:00
parent 5a81e00633 97d5db32ae
commit b39fd79cb8
17 changed files with 124 additions and 35 deletions
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docs/en/api-reference/peripherals/mcpwm.rst
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@@ -724,6 +724,7 @@ The MCPWM operator has a carrier submodule that can be used if galvanic isolatio
To configure the carrier submodule, you can call :cpp:func:`mcpwm_operator_apply_carrier`, and provide configuration structure :cpp:type:`mcpwm_carrier_config_t`:
- :cpp:member:`mcpwm_carrier_config_t::clk_src` sets the clock source of the carrier.
- :cpp:member:`mcpwm_carrier_config_t::frequency_hz` indicates carrier frequency in Hz.
- :cpp:member:`mcpwm_carrier_config_t::duty_cycle` indicates the duty cycle of the carrier. Note that, the supported choices of the duty cycle are discrete, the driver will search for the nearest one based on your configuration.
- :cpp:member:`mcpwm_carrier_config_t::first_pulse_duration_us` indicates the duration of the first pulse in microseconds. The resolution of the first pulse duration is determined by the carrier frequency you set in the :cpp:member:`mcpwm_carrier_config_t::frequency_hz`. The first pulse duration can't be zero, and it has to be at least one period of the carrier. A longer pulse width can help conduct the inductance quicker.