I'm using an STM32F103CBT7 with HAL functionality and a 72MHz system clock in my design.
SPI 1 is set to Master, with a data rate of 18 MBits/s and a 16-bit data width.
When sending data out, the MOSI pin has a data bit, but the SCK pin has no clock pulse.
I'm at a loss as to what's going on.
Is there anything you can recommend?
Your question is a bit beyond the scope of this forum. Here is a link to a CAN bus group, on FB, where you can probably find the help that you are looking for.
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer." I have learned more by being wrong, than I have by being right.