70752baba4
1. add brownout detector HAL for esp32 and esp32s2 2. enable brownout reset for esp32 rev. 1 and above 3. add approximate brownout detector levels for esp32s2
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
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// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "hal/brownout_hal.h"
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#include "soc/rtc_cntl_struct.h"
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void brownout_hal_config(const brownout_hal_config_t *cfg)
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{
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typeof(RTCCNTL.brown_out) brown_out_reg = {
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.close_flash_ena = cfg->flash_power_down,
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.pd_rf_ena = cfg->rf_power_down,
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.rst_wait = 0x3ff,
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.rst_ena = cfg->reset_enabled,
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.thres = cfg->threshold,
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.ena = cfg->enabled,
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};
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RTCCNTL.brown_out = brown_out_reg;
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}
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void brownout_hal_intr_enable(bool enable)
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{
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RTCCNTL.int_ena.rtc_brown_out = enable;
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}
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void brownout_hal_intr_clear(void)
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{
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RTCCNTL.int_clr.rtc_brown_out = 1;
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}
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