topic KE18F WDOG Clock Capability in Kinetis Microcontrollers

KE18F WDOG Clock Capability

sean_dvorscak — Tue, 05 Jan 2021 19:46:28 GMT

I was wondering what the max frequency is for the watchdog on the KE18F MCU. The reference manual has a table to describe the timeout capabilities, and I am confused on the last row of the table on page 716. It says 20MHz (from bus or external). I have my bus clock running at 60MHz. Are these values just examples? Can I run the watchdog up to the bus clock frequency, or will it max out at 20MHz?

Re: KE18F WDOG Clock Capability

nxf58904 — Wed, 06 Jan 2021 08:34:45 GMT

Hi,

From the RM we know that watch dog's max clock=BUS_CLK

And I make a project , it shows ok.

I hope this help you.

Have a great day,
TIC

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Re: KE18F WDOG Clock Capability

sean_dvorscak — Wed, 06 Jan 2021 18:33:20 GMT

Thank you for clarifying that.