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docs(pcnt): add pullup and pulldown documentation

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Closes https://github.com/espressif/esp-idf/issues/14277
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Chen Jichang
2024-11-18 15:17:02 +08:00
parent daf465c038
commit 9b112e2a70
2 changed files with 8 additions and 0 deletions
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4
docs/en/api-reference/peripherals/pcnt.rst
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@ -104,6 +104,10 @@ If a previously created PCNT channel is no longer needed, it is recommended to r
pcnt_channel_handle_t pcnt_chan = NULL; pcnt_channel_handle_t pcnt_chan = NULL;
ESP_ERROR_CHECK(pcnt_new_channel(pcnt_unit, &chan_config, &pcnt_chan)); ESP_ERROR_CHECK(pcnt_new_channel(pcnt_unit, &chan_config, &pcnt_chan));
.. note::
In PCNT, the GPIOs involved can be reconfigured for pull-up or pull-down after initializing PCNT using functions such as :cpp:func:`gpio_pullup_en` and :cpp:func:`gpio_pullup_dis`.
.. _pcnt-setup-channel-actions: .. _pcnt-setup-channel-actions:
Set Up Channel Actions Set Up Channel Actions

4
docs/zh_CN/api-reference/peripherals/pcnt.rst
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@ -104,6 +104,10 @@ PCNT 单元和通道分别用 :cpp:type:`pcnt_unit_handle_t` 与 :cpp:type:`pcnt
pcnt_channel_handle_t pcnt_chan = NULL; pcnt_channel_handle_t pcnt_chan = NULL;
ESP_ERROR_CHECK(pcnt_new_channel(pcnt_unit, &chan_config, &pcnt_chan)); ESP_ERROR_CHECK(pcnt_new_channel(pcnt_unit, &chan_config, &pcnt_chan));
.. note::
PCNT 中涉及到的 GPIO 都可以在初始化完 PCNT 后, 通过 :cpp:func:`gpio_pullup_en` 和 :cpp:func:`gpio_pullup_dis` 等函数，重新进行上下拉等配置。
.. _pcnt-setup-channel-actions: .. _pcnt-setup-channel-actions:
设置通道操作 设置通道操作