famouso::mw::nl::CAN::detail Namespace Reference
Data Structures | |
| struct | ETAGS |
| Predefined etags for ccp and etag exchange. More... | |
| struct | constants |
| some constants that are used in the CCP More... | |
Functions | |
| template<typename IDStruct > | |
| union | __attribute__ ((packed)) ID |
| The union defines the CAN-ID and getter/setter methods. | |
Function Documentation
| struct famouso::mw::nl::CAN::detail::__attribute__ | ( | (packed) | ) | [read, write] |
The union defines the CAN-ID and getter/setter methods.
CAN-ID parts description for little endian machines.
CAN-ID parts description for avr that is also little endian, but has additional padding.
In the FAMOUSO middleware the canID has a clear structure and it is devided into three parts:
- 8 bit priority
- 7 bit node identifier
- 14 bit etag that is the short network representation of the subject of an event.
However, the CAN-Configuration-Protocol (famouso::mw::nl::CAN::ccp) uses the ID in a slightly different way. For that purpose, IDStruct contains also the description of the CCP-parts. The union itself provides methods for accessing these parts too.
- Template Parameters:
-
IDStruct defines the bit-postions of the parts
get etag of the CAN-ID
set etag of the CAN-ID
get the node-ID out of CAN-ID
set the node-ID on the CAN-ID
determines if the CAN message is a fragment of a bigger message
set the fragment bit if the CAN message is a fragment of a bigger one
get priority of the CAN message
set priority of the CAN message
determines the current CCP stage
set the current CCP stage
get the node-ID nibble for the CCP stage
get the node-ID nibble for the CCP stage
operator provides a byte-wise access to the CAN-ID
Referenced by StaticCreatorPolicy::process(), and LocalCreatorPolicy::process().