app如何通过多种固件下载器实现OTA升级

RTThread物联网操作系统 2020-06-24 4067

描述

前言：前边讲过stm32通用bootloader的实现方法，没有看过的，可以参考这一篇文章：STM32通用Bootloader——FOTA，这次将在上篇bootloader的基础上，介绍app如何通过多种固件下载器实现OTA升级。

此项目硬件使用的是STM32F429开发板，代码全部使用RT-Thread Studio搭积木的方式实现，仅仅改动了几行代码，开发效率非常高。此项目的地址：https://gitee.com/Aladdin-Wang/RT-FOTA-STM32L431.git

使用到的软件包和组件：

阿里云

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1.准备工作

1.1 新建工程

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由于此项目使用的esp8266需要一个串口，我使用的是uart2，所以需要还需要配置uart2：

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增加uart接收缓冲区大小：

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1.2 打开fal和at device软件包

配置fal软件包

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配置sfud组件

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配置SPI

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配置fal_cfg.h

1#ifndef _FAL_CFG_H_ 2#define _FAL_CFG_H_ 3 4#include 5#include 6 7#define FLASH_SIZE_GRANULARITY_16K (4 * 16 * 1024) 8#define FLASH_SIZE_GRANULARITY_64K (64 * 1024) 9#define FLASH_SIZE_GRANULARITY_128K (7 * 128 * 1024) 10 11#define STM32_FLASH_START_ADRESS_16K STM32_FLASH_START_ADRESS 12#define STM32_FLASH_START_ADRESS_64K (STM32_FLASH_START_ADRESS_16K + FLASH_SIZE_GRANULARITY_16K) 13#define STM32_FLASH_START_ADRESS_128K (STM32_FLASH_START_ADRESS_64K + FLASH_SIZE_GRANULARITY_64K) 14/* ===================== Flash device Configuration ========================= */ 15extern const struct fal_flash_dev stm32_onchip_flash_16k; 16extern const struct fal_flash_dev stm32_onchip_flash_64k; 17extern const struct fal_flash_dev stm32_onchip_flash_128k; 18extern struct fal_flash_dev nor_flash0; 19 20/* flash device table */ 21#define FAL_FLASH_DEV_TABLE 22{ 23 &stm32_onchip_flash_16k, 24 &stm32_onchip_flash_64k, 25 &stm32_onchip_flash_128k, 26 &nor_flash0, 27} 28/* ====================== Partition Configuration ========================== */ 29#ifdef FAL_PART_HAS_TABLE_CFG 30/* partition table */ 31#define FAL_PART_TABLE 32{ 33 {FAL_PART_MAGIC_WROD, "bootloader", "onchip_flash_16k", 0 , FLASH_SIZE_GRANULARITY_16K , 0}, 34 {FAL_PART_MAGIC_WROD, "param", "onchip_flash_64k", 0 , FLASH_SIZE_GRANULARITY_64K , 0}, 35 {FAL_PART_MAGIC_WROD, "app", "onchip_flash_128k", 0 , FLASH_SIZE_GRANULARITY_128K, 0}, 36 {FAL_PART_MAGIC_WROD, "ef", "W25Q128", 0 , 1024 * 1024, 0}, 37 {FAL_PART_MAGIC_WROD, "download", "W25Q128", 1024 * 1024 , 512 * 1024, 0}, 38 {FAL_PART_MAGIC_WROD, "factory", "W25Q128", (1024 + 512) * 1024 , 512 * 1024, 0}, 39} 40#endif /* FAL_PART_HAS_TABLE_CFG */ 41 42#endif /* _FAL_CFG_H_ */

初始化spi flash和fal软件包

1#include 2#include "spi_flash.h" 3#include "spi_flash_sfud.h" 4#include "drv_spi.h" 5 6#if defined(RT_USING_SFUD) 7static int rt_hw_spi_flash_init(void) 8{ 9 __HAL_RCC_GPIOF_CLK_ENABLE(); 10 rt_hw_spi_device_attach("spi5", "spi50", GPIOF, GPIO_PIN_6); 11 12 if (RT_NULL == rt_sfud_flash_probe("W25Q128", "spi50")) 13 { 14 return -RT_ERROR; 15 } 16 17 return RT_EOK; 18} 19INIT_COMPONENT_EXPORT(rt_hw_spi_flash_init); 20#endif1int fs_init(void) 2{ 3 /* partition initialized */ 4 fal_init(); 5 return 0; 6} 7INIT_ENV_EXPORT(fs_init);

配置at device软件包

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1.3 配置中断重定向

1/** 2 * Function ota_app_vtor_reconfig 3 * Description Set Vector Table base location to the start addr of app(RT_APP_PART_ADDR). 4*/ 5static int ota_app_vtor_reconfig(void) 6{ 7 #define NVIC_VTOR_MASK 0x3FFFFF80 8 /* Set the Vector Table base location by user application firmware definition */ 9 SCB->VTOR = 0x8020000 & NVIC_VTOR_MASK; 10 11 return 0; 12} 13INIT_BOARD_EXPORT(ota_app_vtor_reconfig);

阿里云

烧录bootloader:
bootloader的制作方法请参考官方的教程https://www.rt-thread.org/document/site/application-note/system/rtboot/an0028-rtboot/或者STM32通用Bootloader——FOTA

2.阿里云物联网平台OTA

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创建产品

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产品详情：

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添加设备

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添加自定义Topic

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配置ali iotkit软件包
将刚才新建的阿里云设备信息填写到配置信息里：

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将软件包的示例mqtt-example.c和ota_mqtt-example.c拷贝到applications目录备用

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配置mbedtls软件包

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更改ota_mqtt-example.c中的部分代码：

1static int _ota_mqtt_client(void) 2{ 3#define OTA_BUF_LEN (16385) 4#define DEFAULT_DOWNLOAD_PART "download" 5 int rc = 0, ota_over = 0; 6 void *pclient = NULL, *h_ota = NULL; 7 iotx_conn_info_pt pconn_info; 8 iotx_mqtt_param_t mqtt_params; 9 10 // FILE *fp; 11 static char buf_ota[OTA_BUF_LEN]; 12 const struct fal_partition * dl_part = RT_NULL; 13 14 // if (NULL == (fp = fopen("ota.bin", "wb+"))) { 15 // EXAMPLE_TRACE("open file failed"); 16 // goto do_exit; 17 // } 18 19 /**< get device info*/ 20 HAL_GetProductKey(g_product_key); 21 HAL_GetDeviceName(g_device_name); 22 HAL_GetDeviceSecret(g_device_secret); 23 /**< end*/ 24 25 /* Device AUTH */ 26 if (0 != IOT_SetupConnInfo(g_product_key, g_device_name, g_device_secret, (void **)&pconn_info)) { 27 EXAMPLE_TRACE("AUTH request failed!"); 28 rc = -1; 29 goto do_exit; 30 } 31 32 /* Initialize MQTT parameter */ 33 memset(&mqtt_params, 0x0, sizeof(mqtt_params)); 34 35 mqtt_params.port = pconn_info->port; 36 mqtt_params.host = pconn_info->host_name; 37 mqtt_params.client_id = pconn_info->client_id; 38 mqtt_params.username = pconn_info->username; 39 mqtt_params.password = pconn_info->password; 40 mqtt_params.pub_key = pconn_info->pub_key; 41 42 mqtt_params.request_timeout_ms = 2000; 43 mqtt_params.clean_session = 0; 44 mqtt_params.keepalive_interval_ms = 60000; 45 mqtt_params.read_buf_size = OTA_MQTT_MSGLEN; 46 mqtt_params.write_buf_size = OTA_MQTT_MSGLEN; 47 48 mqtt_params.handle_event.h_fp = event_handle; 49 mqtt_params.handle_event.pcontext = NULL; 50 51 /* Construct a MQTT client with specify parameter */ 52 pclient = IOT_MQTT_Construct(&mqtt_params); 53 if (NULL == pclient) { 54 EXAMPLE_TRACE("MQTT construct failed"); 55 rc = -1; 56 goto do_exit; 57 } 58 h_ota = IOT_OTA_Init(g_product_key, g_device_name, pclient); 59 if (NULL == h_ota) { 60 rc = -1; 61 EXAMPLE_TRACE("initialize OTA failed"); 62 goto do_exit; 63 } 64 65 66 do { 67 uint32_t firmware_valid; 68 69 EXAMPLE_TRACE("wait ota upgrade command...."); 70 71 /* handle the MQTT packet received from TCP or SSL connection */ 72 IOT_MQTT_Yield(pclient, 200); 73 74 if (IOT_OTA_IsFetching(h_ota)) { 75 uint32_t last_percent = 0, percent = 0; 76 char md5sum[33]; 77 char version[128] = {0}; 78 uint32_t len, size_downloaded, size_file; 79 IOT_OTA_Ioctl(h_ota, IOT_OTAG_FILE_SIZE, &size_file, 4); 80 /* Get download partition information and erase download partition data */ 81 if ((dl_part = fal_partition_find(DEFAULT_DOWNLOAD_PART)) == RT_NULL) 82 { 83 LOG_E("Firmware download failed! Partition (%s) find error!", "download"); 84 rc = -1; 85 goto do_exit; 86 } 87 88 LOG_I("Start erase flash (%s) partition!", dl_part->name); 89 90 if (fal_partition_erase(dl_part, 0, size_file) < 0) 91 { 92 LOG_E("Firmware download failed! Partition (%s) erase error!", dl_part->name); 93 rc = -1; 94 goto do_exit; 95 } 96 LOG_I("Erase flash (%s) partition success!", dl_part->name); 97 98 rt_uint32_t content_pos = 0, content_write_sz; 99 100 do { 101 102 len = IOT_OTA_FetchYield(h_ota, buf_ota, OTA_BUF_LEN, 1); 103 if (len > 0) { 104 content_write_sz = fal_partition_write(dl_part, content_pos, (uint8_t *)buf_ota, len); 105 if (content_write_sz != len) 106 { 107 LOG_I("Write OTA data to file failed"); 108 109 IOT_OTA_ReportProgress(h_ota, IOT_OTAP_BURN_FAILED, RT_NULL); 110 111 goto do_exit; 112 } 113 else 114 { 115 content_pos = content_pos + len; 116 LOG_I("receive %d bytes, total recieve: %d bytes", content_pos, size_file); 117 } 118 } else { 119 IOT_OTA_ReportProgress(h_ota, IOT_OTAP_FETCH_FAILED, NULL); 120 EXAMPLE_TRACE("ota fetch fail"); 121 } 122 123 /* get OTA information */ 124 IOT_OTA_Ioctl(h_ota, IOT_OTAG_FETCHED_SIZE, &size_downloaded, 4); 125 IOT_OTA_Ioctl(h_ota, IOT_OTAG_FILE_SIZE, &size_file, 4); 126 127 last_percent = percent; 128 percent = (size_downloaded * 100) / size_file; 129 if (percent - last_percent > 0) { 130 IOT_OTA_ReportProgress(h_ota, percent, NULL); 131 } 132 IOT_MQTT_Yield(pclient, 100); 133 } while (!IOT_OTA_IsFetchFinish(h_ota)); 134 135 IOT_OTA_Ioctl(h_ota, IOT_OTAG_MD5SUM, md5sum, 33); 136 IOT_OTA_Ioctl(h_ota, IOT_OTAG_VERSION, version, 128); 137 IOT_OTA_Ioctl(h_ota, IOT_OTAG_CHECK_FIRMWARE, &firmware_valid, 4); 138 if (0 == firmware_valid) { 139 EXAMPLE_TRACE("The firmware is invalid"); 140 } else { 141 EXAMPLE_TRACE("The firmware is valid"); 142 IOT_OTA_ReportVersion(h_ota, version); 143 144 LOG_I("Download firmware to flash success."); 145 LOG_I("System now will restart..."); 146 147 HAL_SleepMs(1000); 148 149 /* Reset the device, Start new firmware */ 150 extern void rt_hw_cpu_reset(void); 151 rt_hw_cpu_reset(); 152 } 153 154 ota_over = 1; 155 } 156 HAL_SleepMs(2000); 157 } while (!ota_over); 158 159 HAL_SleepMs(1000); 160 161do_exit: 162 163 if (NULL != h_ota) { 164 IOT_OTA_Deinit(h_ota); 165 } 166 167 if (NULL != pclient) { 168 IOT_MQTT_Destroy(&pclient); 169 } 170 171 return rc; 172}

编译工程，将bin文件上传到阿里云：

阿里云不支持rbl格式的文件，直接将rt_ota_packaging_tool生成的rbl文件后缀改为bin，上传即可。

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