PCAN-PC/104 – User Manual
33
Output language depends on operating system
Debugging information can be defined individually
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
).
4.2.2
Principle Description of the API
The 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 confine to specific CAN IDs or setting the CAN controller to
listen-only mode.
