We have requirement, SBC is requested to have wake up via CAN and switch change of state on wake up pin.
The SW shall configure the following registers as below:
- CWE bit from Transceiver event capture enable register (23h) shall be set to logic 1; (this will enable the CAN wake up mechanism)
- WPRE bit from WAKE pin event enable register (4Ch) shall be set to logic 1; (this will enable rising edge detection on WAKE pin)
- WPFE bit from WAKE pin event enable register (4Ch) shall be set to logic 0; (this will disable falling edge detection on WAKE pin).
We observed that wake up by pin happens successfully, and we have a query on CAN standard wake-up
- What is wake-up pattern, how we can send and how to test?
Please let us know how to send wake-up pattern and how to test wake by CAN
We are waiting for your response.