User Manual

PCAN-USB – User Manual
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Output language depends on operating systems
Debugging information can be defined individually
Thread-safe API
Tip: An overview of the API functions is located in the header
files. You can find detailed information about the PCAN-Basic
API on the provided DVD in the text and help files (file name
extensions .txt and .chm).
5.2.2 Principle Description of the API
T
he PCAN-Basic API is the interface between the user application
and device driver. In Windows operating systems this is a DLL
(Dynamic Link Library).
The sequence of accessing the CAN interface is divided into three
phases:
1. Initialization
2. Interaction
3. Completion
Initialization
A channel must be initialized before using it. This is done by the
simple call of the function
CAN_Initialize for CAN and
CAN_InitializeFD for CAN FD. Depending on the type of the CAN
hardware, up to 16 CAN channels can be opened at the same time.
After a successful initialization the CAN channel is ready. No further
configuration steps are required.
Interaction
For receiving and transmitting messages the functions
CAN_Read and
CAN_Write as well as CAN_ReadFD and CAN_WriteFD are available.
Additional settings can be made, e.g. setting up message filters to