CAN message container. Defines "<<" and ">>" operators to simplify adding/getting data to/from a CAN message.
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CAN message container¶
In order to simplify adding/getting data to/from a CAN message the CANMsg class extends mbed's built-in CANMessage class by defining "<<" (append) and ">>" (extract) operators. Since it inherits everything from CANMessage, after importing the library into your project, you can use it instead of CANMessage without any additional modification or limitations. The usage of "<<" and ">>" operators is similar to the C++ io-streams operators.
- Before adding data to a CANMsg object it is recommended to clear it by calling its
- Then set up all the other properties (ID, type, format) as needed.
- Finally append data one by one or combine them into a stream. The actual data length of a CAN message is automatically updated when using "<<" or ">>" operators. However, you have to make sure that the total length of data does not exceed eight bytes.
For an example of use have a look at this wiki page.