Hi currently I am doing the EVSE setup.
The device status there: Provisioned.
But in the serial terminal there display: Disconnected from IoTHub.
And also, I confuse the difference between EVSE setup without SE050 and with SE050. Can you explain more on this? Thanks
Hi, @Bay
Thanks for your interest of NXP EVSE solution.
Let me firstly explain the difference with and without SE050.
Credentials and critical information must be stored in a secure and protected place, to prevent malicious actor to steal or alter them. To solve this need, NXP provides the Edge Lock SE050 secure element IC, which performs cryptographic operations and provides a secure key and certificate store. The SE050 does not only store credentials. It is also used to accelerate security operations as the security in the SE050 acts as an integral part of the overall security functionality.
After enrollment, you need to select authentication method:
| #define EVSE_SAS_AUTH 1 //Means select Symmetric Key attestation |
| #define EVSE_SAS_AUTH 0 //Means select X.509 certiticates |
The advantages and disadvantages between SAS and X.509 certificate:
After select auth, then you need to select storage place:
#define EVSE_X509_SE050_AUTH 0
#define EVSE_X509 1 //Stored in I.MX RT106x NVM
#define EVSE_X509_SE050_AUTH 1 //Securely stored in SE050.
#define EVSE_X509 0
You can refer to Section 5.1 Connection setup, Figure 11, provides an overview of the connection setup of the EasyEVSE to your Azure IoT Central application in our NXP EasyEVSE EV Charging Station Development Platform User Manual.
For question 1, if you are not using SE050, you can refer to our User Manual section 5.1.2, X.509 from flash, which part give you a detailed reference about how to connect your device to IoT Central.
If still have question after referred our User Manual, please give me more detailed information about your setup, then we can discuss further.
Best regards,
Christine.
Here is my setting:
Why is the device status provisioned but my serial terminal is disconnected from IoT Hub?
I have copied the ID scope, device ID and primary key inside the IDE and build and debug.
Status is provisioned.
And in the serial terminal there
Is it because of this?
The prompt window is at the top of the page.
Here is the link: Azure IoT TLS: Critical changes are almost here! (…and why you should care) - Microsoft Community Hu...
Error when build the project.
Can you teach step by step as I not sure where need to change in code or azure iot central
