Hello,
We have a customer specification for a particular CAN bit Rate. We can not achieve this bit rate using the 20 MHz on SYS_CLK1. The actual bit rates are outside the tolerance of the other systems on the CAN Bus.
How ever we can get the required bit rate using a 16 MHz clock, so we are considering adding a 16 MHz clock to the SYS_CLK2 input.
Looking trough the TRM is seems that DCAN1 can be configured to use SYS_CLK2 for the DCAN1_FCLK, but DCAN2 can only use SYS_CLK1.
If there any way for DCAN2 to use any other clock other than SYS_CLK1 for the DCAN2_FCLK?
The SYS_CLK1 choices of 19.2, 20, and 27 MHz do not allow generating the required bit rate and the actual bitrate that can be generated may not be within the tolerance of the other systems on the CAN Bus.
Joe