1 // Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #pragma once 16 17 /** 18 * @file regi2c_bias.h 19 * @brief Register definitions for bias 20 * 21 * This file lists register fields of BIAS. These definitions are used via macros defined in regi2c_ctrl.h, by 22 * bootloader_hardware_init function in bootloader_esp32c3.c. 23 */ 24 25 #define I2C_BIAS 0X6A 26 #define I2C_BIAS_HOSTID 0 27 28 #define I2C_BIAS_DREG_1P1_PVT 1 29 #define I2C_BIAS_DREG_1P1_PVT_MSB 3 30 #define I2C_BIAS_DREG_1P1_PVT_LSB 0 31