mirror of
https://github.com/alexandrebobkov/ESP-Nodes.git
synced 2025-11-03 08:15:35 +00:00
103 lines
4.0 KiB
C
103 lines
4.0 KiB
C
/*
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* SPDX-FileCopyrightText: 2010-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: CC0-1.0
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*/
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#include <stdio.h>
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#include <inttypes.h>
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#include "sdkconfig.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_chip_info.h"
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#include "esp_flash.h"
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#include "esp_system.h"
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#include "bme280.h"
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#define I2C_MASTER_SCL_IO CONFIG_I2C_MASTER_SCL /*!< GPIO number used for I2C master clock */
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#define I2C_MASTER_SDA_IO CONFIG_I2C_MASTER_SDA /*!< GPIO number used for I2C master data */
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#define I2C_MASTER_NUM I2C_NUM_0 /*!< I2C master i2c port number, the number of i2c peripheral interfaces available will depend on the chip */
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#define I2C_MASTER_FREQ_HZ 400000 /*!< I2C master clock frequency */
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#define I2C_MASTER_TX_BUF_DISABLE 0 /*!< I2C master doesn't need buffer */
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#define I2C_MASTER_RX_BUF_DISABLE 0 /*!< I2C master doesn't need buffer */
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#define I2C_MASTER_TIMEOUT_MS 1000
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#define I2C_ACKS 0x1
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#define I2C_ACKM 0x0
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#define I2C_NOACKM 0x1 // I2C NACK value
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#define I2C_WRITE_BIT I2C_MASTER_WRITE
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#define I2C_RED_BIT I2C_MASTER_READ
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#define MPU9250_SENSOR_ADDR 0x76 /*!< Slave address of the MPU9250 sensor */
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static bme280_handle_t sensor = NULL;
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static esp_err_t bme280_read_raw_temperature(uint8_t device_address, uint8_t *raw_temperature) {
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// BME280_INIT_VALUE LN 136
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// BME280_TEMPERATURE_MSB_REG 0xFA
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// BME280_TEMPERATURE_DATA_LENGTH
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// BME280_TEMPERATURE_DATA_SIZE
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// I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS
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esp_err_t command_result;
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//unsigned char raw_temperature[BME280_TEMPERATURE_DATA_SIZE] = {0, 0, 0};
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//command_result = i2c_master_read_from_device(0, BME280_I2C_ADDRESS1, *raw_temperature, BME280_TEMPERATURE_DATA_SIZE, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
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command_result = i2c_master_write_read_device(0, device_address, *raw_temperature, BME280_TEMPERATURE_DATA_SIZE, BME280_TEMPERATURE_REGISTER, 1, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
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return command_result;
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}
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static esp_err_t i2c_driver_initialize(void)
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{
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int i2c_master_port = 0;
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i2c_config_t conf = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = GPIO_NUM_21,
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.sda_pullup_en = GPIO_PULLUP_ENABLE,
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.scl_io_num = GPIO_NUM_22,
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.sda_pullup_en = GPIO_PULLUP_ENABLE,
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.master.clk_speed = I2C_MASTER_FREQ_HZ,
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.clk_flags= 0,
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};
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return i2c_param_config(i2c_master_port, &conf);
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}
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void app_main(void)
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{
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printf("Hello world!\n");
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/* Print chip information */
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esp_chip_info_t chip_info;
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uint32_t flash_size;
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esp_chip_info(&chip_info);
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printf("This is %s chip with %d CPU core(s), %s%s%s%s, ",
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CONFIG_IDF_TARGET,
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chip_info.cores,
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(chip_info.features & CHIP_FEATURE_WIFI_BGN) ? "WiFi/" : "",
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(chip_info.features & CHIP_FEATURE_BT) ? "BT" : "",
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(chip_info.features & CHIP_FEATURE_BLE) ? "BLE" : "",
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(chip_info.features & CHIP_FEATURE_IEEE802154) ? ", 802.15.4 (Zigbee/Thread)" : "");
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unsigned major_rev = chip_info.revision / 100;
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unsigned minor_rev = chip_info.revision % 100;
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printf("silicon revision v%d.%d, ", major_rev, minor_rev);
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if(esp_flash_get_size(NULL, &flash_size) != ESP_OK) {
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printf("Get flash size failed");
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return;
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}
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printf("%" PRIu32 "MB %s flash\n", flash_size / (uint32_t)(1024 * 1024),
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(chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "embedded" : "external");
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printf("Minimum free heap size: %" PRIu32 " bytes\n", esp_get_minimum_free_heap_size());
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ESP_ERROR_CHECK(bme280_default_init(sensor));
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for (int i = 10; i >= 0; i--) {
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printf("Restarting in %d seconds...\n", i);
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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}
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printf("Restarting now.\n");
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fflush(stdout);
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esp_restart();
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}
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