ESP32-简单OTA升级

基于ESP-IDF4.1

  1 #include "freertos/FreeRTOS.h"
  2 #include "freertos/task.h"
  3 #include "esp_system.h"
  4 #include "esp_event.h"
  5 #include "esp_log.h"
  6 #include "esp_ota_ops.h"
  7 #include "esp_http_client.h"
  8 #include "esp_https_ota.h"
  9 #include "protocol_examples_common.h"
 10 #include "string.h"
 11
 12 #include "nvs.h"
 13 #include "nvs_flash.h"
 14 #include "protocol_examples_common.h"
 15
 16 #if CONFIG_EXAMPLE_CONNECT_WIFI
 17 #include "esp_wifi.h"
 18 #endif
 19
 20 static const char *TAG = "simple_ota_example";
 21 extern const uint8_t server_cert_pem_start[] asm("_binary_ca_cert_pem_start");
 22 extern const uint8_t server_cert_pem_end[] asm("_binary_ca_cert_pem_end");
 23
 24 #define OTA_URL_SIZE 256
 25
 26 //http事件处理程序
 27 esp_err_t _http_event_handler(esp_http_client_event_t *evt)
 28 {
 29     switch (evt->event_id) {
 30     case HTTP_EVENT_ERROR:
 31         ESP_LOGD(TAG, "HTTP_EVENT_ERROR");
 32         break;
 33     case HTTP_EVENT_ON_CONNECTED:
 34         ESP_LOGD(TAG, "HTTP_EVENT_ON_CONNECTED");
 35         break;
 36     case HTTP_EVENT_HEADER_SENT:
 37         ESP_LOGD(TAG, "HTTP_EVENT_HEADER_SENT");
 38         break;
 39     case HTTP_EVENT_ON_HEADER:
 40         ESP_LOGD(TAG, "HTTP_EVENT_ON_HEADER, key=%s, value=%s", evt->header_key, evt->header_value);
 41         break;
 42     case HTTP_EVENT_ON_DATA:
 43         ESP_LOGD(TAG, "HTTP_EVENT_ON_DATA, len=%d", evt->data_len);
 44         break;
 45     case HTTP_EVENT_ON_FINISH:
 46         ESP_LOGD(TAG, "HTTP_EVENT_ON_FINISH");
 47         break;
 48     case HTTP_EVENT_DISCONNECTED:
 49         ESP_LOGD(TAG, "HTTP_EVENT_DISCONNECTED");
 50         break;
 51     }
 52     return ESP_OK;
 53 }
 54
 55 //OTA任务
 56 void simple_ota_example_task(void *pvParameter)
 57 {
 58     ESP_LOGI(TAG, "Starting OTA example");
 59
 60     esp_http_client_config_t config = {
 61         .url = CONFIG_EXAMPLE_FIRMWARE_UPGRADE_URL,
 62         .cert_pem = (char *)server_cert_pem_start,
 63         .event_handler = _http_event_handler,
 64     };
 65
 66 #ifdef CONFIG_EXAMPLE_FIRMWARE_UPGRADE_URL_FROM_STDIN
 67     char url_buf[OTA_URL_SIZE];
 68     if (strcmp(config.url, "FROM_STDIN") == 0) {
 69         example_configure_stdin_stdout();
 70         fgets(url_buf, OTA_URL_SIZE, stdin);
 71         int len = strlen(url_buf);
 72         url_buf[len - 1] = '\0';
 73         config.url = url_buf;
 74     } else {
 75         ESP_LOGE(TAG, "Configuration mismatch: wrong firmware upgrade image url");
 76         abort();
 77     }
 78 #endif
 79
 80 #ifdef CONFIG_EXAMPLE_SKIP_COMMON_NAME_CHECK
 81     config.skip_cert_common_name_check = true;
 82 #endif
 83
 84     esp_err_t ret = esp_https_ota(&config);
 85     if (ret == ESP_OK) {
 86         esp_restart();
 87     } else {
 88         ESP_LOGE(TAG, "Firmware upgrade failed");
 89     }
 90     while (1) {
 91         vTaskDelay(1000 / portTICK_PERIOD_MS);
 92     }
 93 }
 94
 95 void app_main(void)
 96 {
 97     // 初始化非易失性存储
 98     esp_err_t err = nvs_flash_init();
 99     if (err == ESP_ERR_NVS_NO_FREE_PAGES || err == ESP_ERR_NVS_NEW_VERSION_FOUND) {
100         //1.OTA应用程序分区表的NVS分区大小比非OTA分区表小。这种大小不匹配可能导致NVS初始化失败.
101         //2.NVS分区包含新格式的数据，此版本的代码无法识别。如果发生这种情况，我们将擦除NVS分区并再次初始化NVS.
102         ESP_ERROR_CHECK(nvs_flash_erase());
103         err = nvs_flash_init();
104     }
105     ESP_ERROR_CHECK(err);
106
107     ESP_ERROR_CHECK(esp_netif_init());
108     ESP_ERROR_CHECK(esp_event_loop_create_default());
109
110     //连接网络
111     ESP_ERROR_CHECK(example_connect());
112
113 #if CONFIG_EXAMPLE_CONNECT_WIFI
114     //确保禁用低功耗模式，这样可以提供最佳的吞吐量，从而为整个OTA操作节省时间
115     esp_wifi_set_ps(WIFI_PS_NONE);
116 #endif
117
118     xTaskCreate(&simple_ota_example_task, "ota_example_task", 8192, NULL, 5, NULL);
119 }

原文：https://gitee.com/EspressifSystems/esp-idf/tree/master/examples/system/ota/simple_ota_example