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Merge branch 'feature/add_mcpwm_carrier_clk_source_v5.1' into 'release/v5.1'

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feat(MCPWM): Add mcpwm carrier clk source(v5.1)

See merge request espressif/esp-idf!25572
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morris
2023-08-28 11:11:04 +08:00
parent dabbc8b70e c240a1f46b
commit 2a80451b24
14 changed files with 101 additions and 35 deletions
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9
docs/en/api-reference/peripherals/mcpwm.rst
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@@ -658,10 +658,11 @@ 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::frequency_hz`: The carrier frequency in Hz.
- :cpp:member:`mcpwm_carrier_config_t::duty_cycle`: The duty cycle of the carrier. Note that, the supported choices of duty cycle are discrete, the driver will search the nearest one based the user configuration.
- :cpp:member:`mcpwm_carrier_config_t::first_pulse_duration_us`: 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.
- :cpp:member:`mcpwm_carrier_config_t::invert_before_modulate` and :cpp:member:`mcpwm_carrier_config_t::invert_after_modulate`: Set whether to invert the carrier output before and after modulation.
- :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.
- :cpp:member:`mcpwm_carrier_config_t::invert_before_modulate` and :cpp:member:`mcpwm_carrier_config_t::invert_after_modulate` set whether to invert the carrier output before and after modulation.
Specifically, the carrier submodule can be disabled by calling :cpp:func:`mcpwm_operator_apply_carrier` with a ``NULL`` configuration.