OVMS3-idf/components/soc/esp32s2/i2c_brownout.h
Ivan Grokhotkov 70752baba4 esp32s2: add brownout detector support
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
2020-01-23 13:44:19 +01:00

30 lines
1 KiB
C

// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
/**
* @file i2c_brownout.h
* @brief Register definitions for brownout detector
*
* This file lists register fields of the brownout detector, located on an internal configuration
* bus. These definitions are used via macros defined in i2c_rtc_clk.h.
*/
#define I2C_BOD 0x61
#define I2C_BOD_HOSTID 1
#define I2C_BOD_THRESHOLD 0x5
#define I2C_BOD_THRESHOLD_MSB 2
#define I2C_BOD_THRESHOLD_LSB 0