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CC3235S: Using AWS SDKs in Latest SDKs and AWS Root CA

JINHYEONG LEE
Intellectual 740 points
Part Number: CC3235S


Hi,

I tested the subscribe_publish_sample example from AWS SDK 4.30 to use AWS IoT. (for this, CC32xx SDK also used version 4.30).

 

CC3200: Unable to connect with AWS IOT core using CC3200 - Wi-Fi forum - Wi-Fi - TI E2E support forums

I had a server authentication problem, and referring to the link above, I succeeded in connecting using the "Starfield Class2 Certification Authority Root CA" instead of the Root CA provided by AWS.

 

 

Q1. Why should I use the "Starfield Class2 Certification Authority Root CA" rather than the Root CA provided by AWS, is it a matter of the AWS SDK provided by TI? (I don't understand from the link)

 

Q2. Other projects using CC3235 use the latest SDK version 6.10. Can I use the aws_iot_xx source from the AWS SDK in the latest SDK?

 

Thanks.

  • +1
    TI__Guru 63006 points

    Q1. this relates to the AWS server configuration. The end point that you connect to uses a certificate that was signed by "Starfield Class2 Certification Authority Root CA". It is not related to the SDK. Please check this with AWS.

    Q2. You can port the AWS plugin to work with SDK6.10. There should not be major issues but expect some compilation issues (mainly related to syscfg and few changes in folder structures/naming). I suggest starting with a 6.10 example project and adding the aws-iot content to it.