基于Amazon Cloud Server的FreeRTOS系统OTA

1. Over-the-Air Update Prerequisites

参考链接：https://docs.aws.amazon.com/freertos/latest/userguide/ota-prereqs.html

To use over-the-air updates, you need to do the following:

• Create an Amazon S3 Bucket to Store Your Update.
• Create an OTA Update Service Role.
• Create an OTA User Policy.
• Create a Code-Signing Certificate.

并将ecdsasigner.crt的内容到copy到demos/common/include/aws_ota_codesigner_certificate.h中，如图：

• If you are using Code Signing for AWS IoT, Grant Access to Code Signing for AWS IoT.
• Download Amazon FreeRTOS with the OTA Library.

2.进入toolsaws_config_quick_start，配置相应参数，如：

{

"afr_source_dir":"../..",

"thing_name":"freeRTOS_iot7",

"wifi_ssid":"TGI-WiFi",

"wifi_password":"29****00",

"wifi_security":"eWiFiSecurityWPA2"

}

3.在当前目录输入：python SetupAWS.py setup 将在iot console生成对应的Thing, Certificate和Policy, 同时demoscommoninclude目录下的aws_clientcredential.h和aws_clientcredential_keys.h将被更新

4.Make sure that vStartOTAUpdateDemoTask is the only function called in the DEMO_RUNNER_RunDemos() function in demos/common/demo_runner/aws_demo_runner.c. You can define CONFIG_OTA_UPDATE_DEMO_ENABLED in the file amazon-freertosvendorsespressifboardsesp32aws_demosconfig_filesaws_demo_config.h

5.进入demosespressifesp32_devkitc_esp_wrover_kitmake或amazon-freertosvendorsespressifboardsesp32aws_demos目录，输入make menuconfig配置端口

6.Creating an OTA Update Job in AWS IoT Console like some of the below screenshots.

7. Input an unique ID:

8. After creating a job to tigger an OTA update and updating successfully, it will show below

最后

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