LPC546xx CAN FD External timestamp HCLK

[wangyanjun]

The manual says: ETCP: External timestamp prescaler value. The HCLK is divided down by the prescaler
value plus 1 to clock the external timestamp counter. 

What is HCLK?

[PabloAvalos]

Hi @wangyanjun 

Thank you so much for using our community. I really appreciate your patience.

Regarding your question, HCLK is the main clock of your board, so this one is divided by the prescaler value plus 1 to determinate the clock for the external timestamps counter.

Hope this helps, please let me know if you have more questions.

Best Regards.
Pablo Avalos.