A:
CAN communication may not be possible at all due to mismatched CAN communication
bit rate settings.
There are various possible reasons why CAN communication is not possible
at all, but we recommend that you first check the bit rate settings.
Basically, the bit rate setting values of the CAN devices to be communicated are generally the same.
For bit rate settings of other companies' CAN devices, please refer
to the device manual provided by each company.
CONTEC CAN devices have different functions for checking the bit rate value
for CAN 2.0B communication and CAN FD communication.
The functions for each communication type are as follows :
To check the set bit rate, use the CanGetCanTiming
function.
Use the CanSetCanTiming
function to set the bit rate.
For details, please refer to the Function Reference for each function.
For information about CAN 2.0B communication, please refer to [Difference between CAN 2.0B Communication and CAN FD Communication].
To check the set bit rate, use the CanGetCanFdTiming
function.
Use the CanSetCanFdTiming
function to set the bit rate.
For details, please refer to the Function Reference for each function.
For CAN FD communication, two types of bit rate can be set.
If you want to set a different bit rate value, also refer to
[CAN FD communication is not possible].