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40 lines
1.5 KiB
Plaintext
40 lines
1.5 KiB
Plaintext
menu "Brownout Detector"
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config ESP_BROWNOUT_DET
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bool "Hardware brownout detect & reset"
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depends on !IDF_ENV_FPGA
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default y
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help
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The ESP32-P4 has a built-in brownout detector which can detect if the voltage is lower than
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a specific value. If this happens, it will reset the chip in order to prevent unintended
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behaviour.
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choice ESP_BROWNOUT_DET_LVL_SEL
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prompt "Brownout voltage level"
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default ESP_BROWNOUT_DET_LVL_SEL_7
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depends on ESP_BROWNOUT_DET
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help
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The brownout detector will reset the chip when the supply voltage is approximately
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below this level. Note that there may be some variation of brownout voltage level
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between each chip.
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Please note that this config is only valid when P4 SOC version is above v1.0. When you are using a
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earlier P4 SOC version (v0.x), the brownout value should be fixed around 2.52V and not configurable.
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#The voltage levels here are estimates, more work needs to be done to figure out the exact voltages
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#of the brownout threshold levels.
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config ESP_BROWNOUT_DET_LVL_SEL_7
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bool "2.6V"
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config ESP_BROWNOUT_DET_LVL_SEL_6
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bool "2.52V"
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config ESP_BROWNOUT_DET_LVL_SEL_5
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bool "2.42V"
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endchoice
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config ESP_BROWNOUT_DET_LVL
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int
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default 5 if ESP_BROWNOUT_DET_LVL_SEL_5
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default 6 if ESP_BROWNOUT_DET_LVL_SEL_6
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default 7 if ESP_BROWNOUT_DET_LVL_SEL_7
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endmenu
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