2022-01-06 23:22:56 -05:00
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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-S2 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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depends on ESP_BROWNOUT_DET
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default ESP_BROWNOUT_DET_LVL_SEL_7
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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 ESP3-S2 chip.
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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 "2.44V"
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config ESP_BROWNOUT_DET_LVL_SEL_6
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bool "2.56V"
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config ESP_BROWNOUT_DET_LVL_SEL_5
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bool "2.67V"
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config ESP_BROWNOUT_DET_LVL_SEL_4
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bool "2.84V"
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config ESP_BROWNOUT_DET_LVL_SEL_3
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bool "2.98V"
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config ESP_BROWNOUT_DET_LVL_SEL_2
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bool "3.19V"
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config ESP_BROWNOUT_DET_LVL_SEL_1
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bool "3.30V"
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endchoice
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config ESP_BROWNOUT_DET_LVL
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int
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default 1 if ESP_BROWNOUT_DET_LVL_SEL_1
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default 2 if ESP_BROWNOUT_DET_LVL_SEL_2
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default 3 if ESP_BROWNOUT_DET_LVL_SEL_3
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default 4 if ESP_BROWNOUT_DET_LVL_SEL_4
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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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2022-05-10 00:27:36 -04:00
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config ESP32S2_KEEP_USB_ALIVE
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bool "Keep USB peripheral enabled at start up" if !ESP_CONSOLE_USB_CDC
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default y if ESP_CONSOLE_USB_CDC
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help
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During the application initialization process, all the peripherals except UARTs and timers
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are reset. Enable this option to keep USB peripheral enabled.
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This option is automatically enabled if "USB CDC" console is selected.
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