Hi Fabio,
Thanks for reaching out! I can't directly access and process the specific safety manual you mentioned, but I can provide some general information about FlexCAN CRC and its relationship to payload data protection.
FlexCAN CRC vs. Additional CRC Module
FlexCAN CRC: This is a built-in feature of the FlexCAN protocol. It uses a Cyclic Redundancy Check (CRC) algorithm to detect errors in the transmitted data. The calculation typically involves a rolling counter, as you mentioned.
Additional CRC Module: This refers to a separate hardware module that can be used to perform an additional CRC calculation on the payload data. This can potentially offer a higher level of error detection compared to the built-in FlexCAN CRC.
Is the Additional CRC Module Mandatory?
Whether the additional CRC module is mandatory depends on several factors, including:
- Safety requirements of your application: If your application deals with safety-critical data, additional error detection mechanisms might be necessary.
- Standards and regulations: Some industry standards or regulations might mandate specific error detection methods for safety-critical CAN communication.
- Risk assessment: Performing a risk assessment for your specific application would help determine the necessary level of error protection.
In many cases, the built-in FlexCAN CRC might be sufficient, especially for non-critical applications. However, for safety-critical applications, using an additional CRC module could be a good practice to enhance error detection capabilities.
Art Full Illustrations are unlikely to be relevant here.
This concept deals with technical communication protocols and error detection mechanisms.
I recommend consulting the specific safety manual you're referring to for its recommendations regarding CRC usage. If it doesn't provide clear guidance, consider reaching out to the manufacturer or a safety engineer for further clarification.
