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docs: updated timer related documents

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Wang Fang
2022-04-28 10:41:15 +08:00
parent 8cb780ffcd
commit e6230c4143
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docs/en/api-reference/peripherals/gptimer.rst
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@@ -32,7 +32,7 @@ The following sections of this document cover the typical steps to install and o
Resource Allocation
^^^^^^^^^^^^^^^^^^^
Different ESP chip might have different number of independent timer groups, and within each group, there could also be several independent timers. Please refer to the [`TRM <{IDF_TARGET_TRM_EN_URL}#timg>`__] to find out how many hardware timers exist.
The GPTimer is implemented using {IDF_TARGET_NAME} Timer Group module. Different ESP chips might have different number of independent timer groups, and within each group, there could also be several independent timers. Please refer to Chapter `Timer Group (TIMG) <{IDF_TARGET_TRM_EN_URL}#timg>`__ in {IDF_TARGET_NAME} Technical Reference Manual to find out how many hardware timers exist.
From driver's point of view, a GPTimer instance is represented by :cpp:type:`gptimer_handle_t`. The driver behind will manage all available hardware resources in a pool, so that users don't need to care about which timer and which group it belongs to.