esp32 http空中升级

转载：esp32 http空中升级

cp -r $IDF_PATH/examples/get-started/hello_world .
cd hello_world/build/
 mkdir get
 cd get/
cp ~/esp/hello_world/build/hello-world.bin .
 cd ..
python -m SimpleHTTPServer 8070

#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_system.h"
#include "esp_spi_flash.h"

#include “nvs_flash.h”
#include “app_wifi.h”
#include “esp_log.h”
#include “esp_http_client.h”
#include “esp_https_ota.h”

static const char *TAG = “MY_OTA”;

esp_err_t _http_event_handler(esp_http_client_event_t *evt)
{
switch(evt->event_id)
{
case HTTP_EVENT_ERROR:
ESP_LOGD(TAG, “HTTP_EVENT_ERROR”);
break;
case HTTP_EVENT_ON_CONNECTED:
ESP_LOGD(TAG, “HTTP_EVENT_ON_CONNECTED”);
break;
case HTTP_EVENT_HEADER_SENT:
ESP_LOGD(TAG, “HTTP_EVENT_HEADER_SENT”);
break;
case HTTP_EVENT_ON_HEADER:
ESP_LOGD(TAG, “HTTP_EVENT_ON_HEADER, key=%s, value=%s”, evt->header_key, evt->header_value);
break;
case HTTP_EVENT_ON_DATA:
ESP_LOGD(TAG, “HTTP_EVENT_ON_DATA, len=%d”, evt->data_len);
if (!esp_http_client_is_chunked_response(evt->client))
{
// Write out data
//printf("%.s", evt->data_len, (char)evt->data);
}
break;
case HTTP_EVENT_ON_FINISH:
ESP_LOGD(TAG, “HTTP_EVENT_ON_FINISH”);
break;
case HTTP_EVENT_DISCONNECTED:
ESP_LOGD(TAG, “HTTP_EVENT_DISCONNECTED”);
break;
}
return ESP_OK;
}

static void http_test_task(void *pvParameters)
{
esp_http_client_config_t config =
{
//.url = “http://192.168.20.96:8070/get/5FD8.bin”,
.url = “http://192.168.20.96:8070/get/hello-world.bin”,
.event_handler = _http_event_handler,
};

esp_err_t ret <span class="token operator">=</span> <span class="token function">esp_https_ota</span><span class="token punctuation">(</span><span class="token operator">&amp;</span>config<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">if</span> <span class="token punctuation">(</span>ret <span class="token operator">==</span> ESP_OK<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token function">esp_restart</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span>
    <span class="token function">ESP_LOGE</span><span class="token punctuation">(</span>TAG<span class="token punctuation">,</span> <span class="token string">"Firmware Upgrades Failed:%dn"</span><span class="token punctuation">,</span>ret<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token keyword">while</span> <span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token function">vTaskDelay</span><span class="token punctuation">(</span><span class="token number">1000</span> <span class="token operator">/</span> portTICK_PERIOD_MS<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

}

void app_main()
{
printf(“Hello world!n”);
esp_err_t ret = nvs_flash_init();
if (ret ESP_ERR_NVS_NO_FREE_PAGES || ret ESP_ERR_NVS_NEW_VERSION_FOUND)
{
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}

<span class="token function">ESP_ERROR_CHECK</span><span class="token punctuation">(</span>ret<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">app_wifi_initialise</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token function">ESP_LOGI</span><span class="token punctuation">(</span>TAG<span class="token punctuation">,</span> <span class="token string">"1------------------&gt;Connected to AP, begin http examplen"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">app_wifi_wait_connected</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">ESP_LOGI</span><span class="token punctuation">(</span>TAG<span class="token punctuation">,</span> <span class="token string">"2------------------&gt;Connected to AP, begin http examplen"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">xTaskCreate</span><span class="token punctuation">(</span><span class="token operator">&amp;</span>http_test_task<span class="token punctuation">,</span> <span class="token string">"http_test_task"</span><span class="token punctuation">,</span> <span class="token number">8192</span><span class="token punctuation">,</span> <span class="token constant">NULL</span><span class="token punctuation">,</span> <span class="token number">5</span><span class="token punctuation">,</span> <span class="token constant">NULL</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token keyword">while</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)</span>
<span class="token punctuation">{</span>
    <span class="token function">vTaskDelay</span><span class="token punctuation">(</span><span class="token number">1000</span> <span class="token operator">/</span> portTICK_PERIOD_MS<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token function">printf</span><span class="token punctuation">(</span><span class="token string">"Restarting now.n"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">fflush</span><span class="token punctuation">(</span><span class="token constant">stdout</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">esp_restart</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

}

d、修改esp_https_ota.c文件中函数
esp_err_t esp_https_ota(constesp_http_client_config_t *config)，将几条语句屏蔽。

/*
    if (!config->cert_pem)
    {
        ESP_LOGE(TAG, "Server certificate not found in esp_http_client config");
        return ESP_FAIL;
    }
*/

3、 测试
a、make erase_flash flash monitor

image.png

可以看到已经开始在运行hello-world.bin的例子。

image.png

最后

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