components/soc/esp32/adc_periph.c (ESP-IDF)

// Copyright 2015-2019 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. #include "soc/adc_periph.h" /* Store IO number corresponding to the ADC channel number. */ const int adc_channel_io_map[SOC_ADC_PERIPH_NUM][SOC_ADC_MAX_CHANNEL_NUM] = { /* ADC1 */ {ADC1_CHANNEL_0_GPIO_NUM, ADC1_CHANNEL_1_GPIO_NUM, ADC1_CHANNEL_2_GPIO_NUM, ADC1_CHANNEL_3_GPIO_NUM, ADC1_CHANNEL_4_GPIO_NUM, ADC1_CHANNEL_5_GPIO_NUM, ADC1_CHANNEL_6_GPIO_NUM, ADC1_CHANNEL_7_GPIO_NUM, -1, -1}, /* ADC2 */ {ADC2_CHANNEL_0_GPIO_NUM, ADC2_CHANNEL_1_GPIO_NUM, ADC2_CHANNEL_2_GPIO_NUM, ADC2_CHANNEL_3_GPIO_NUM, ADC2_CHANNEL_4_GPIO_NUM, ADC2_CHANNEL_5_GPIO_NUM, ADC2_CHANNEL_6_GPIO_NUM, ADC2_CHANNEL_7_GPIO_NUM, ADC2_CHANNEL_8_GPIO_NUM, ADC2_CHANNEL_9_GPIO_NUM} };