CAN plug-in
There has been a growing need for distributed intelligent systems. One implementation of such a system is the application of micro-controllers and CAN-bus.
As the automotive industry has proven, CAN is the perfect protocol to connect micro-controllers in a network.
For the ST72 series of micro-controllers a plug-in is developed with which users can use the CAN bus in their Realizer environment.
The designer can implement CAN-communication in just a few steps:
- Select the CAN plug-in in the Realizer project,
- create the Realizer Globals File, in this file all the CAN ID's used in the network are defined,
- connect the CAN symbols to the defined CAN ID's,
- analyze the project.
At this moment we have a CAN plug-in specially designed for:
• ST72F521,
• combination of ST7 with SPI and Infineon SAE81C91.
Other possibilities with the Realizer CAN plug-in are:
• Sending remote frames
With this option, the module will send a message to update all CAN variables at start-up,
• Respond to remote frames
Sending CAN output values when a remote frame is received,
• Use relative CAN ID's
When different modules with the same software have to be implemented into the network, a selector switch connected to the microcontroller can define CAN ID's. The designer only has to define CAN identifiers for the first module.
The advantages of the CAN plug-in are:
• no difficult settings,
• with the Realizer CAN plug-in setting up a CAN network will be very easy.
More information will be supplied at another time.