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31 lines
1.3 KiB
ReStructuredText
31 lines
1.3 KiB
ReStructuredText
Peripherals
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===========
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:link_to_translation:`zh_CN:[中文]`
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In order to control the dependence of other components on drivers at a smaller granularity, the original peripheral drivers under the `driver`` component were split into separate components:
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- `esp_driver_gptimer` - Driver for general purpose timers
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- `esp_driver_pcnt` - Driver for pulse counter
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- `esp_driver_gpio` - Driver for GPIO
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For compatibility, the original `driver`` component is still treated as an all-in-one component by registering these `esp_driver_xyz`` components as its public dependencies. In other words, you do not need to modify the CMake file of an existing project, but you now have a way to specify the specific peripheral driver that your project depends on.
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Originally, you may have used **linker.lf** to specify the link location of some driver functions in memory space, but now, because the location of the driver files have been moved, you need to make changes your **linker.lf** file accordingly. For example, a linker.lf file with the following entries:
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.. code-block:: none
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[mapping:my_mapping_scheme]
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archive: libdriver.a
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entries:
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gpio (noflash)
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Should be changed to:
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.. code-block:: none
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[mapping:my_mapping_scheme]
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archive: libesp_driver_gpio.a
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entries:
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gpio (noflash)
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