S32KのトピックRe: SBC Watch Dog refresh time

SBC Watch Dog refresh time

Linn1 — Thu, 30 Mar 2023 11:20:34 GMT

MC33FS4508 how to configure watchdog 32ms refresh time parameters, how to configure to achieve the purpose of receiving CAN messages within 200ms after power on

Re: SBC Watch Dog refresh time

guoweisun — Fri, 31 Mar 2023 00:47:43 GMT

You can set the WD_WINDOW register WD_WINDOW_3:0 as '1010' to get the 32ms refresh time.

Re: SBC Watch Dog refresh time

Linn1 — Mon, 10 Apr 2023 16:49:42 GMT

Set the WD_WINDOW register WD_WINDOW_3:0 as '1010' , But it is still reset, is there any other setting to make it work normally. It is normal if you use defult setting to 512 ms

Re: SBC Watch Dog refresh time

guoweisun — Tue, 11 Apr 2023 02:29:53 GMT

why does it reset after your set this register?

Re: SBC Watch Dog refresh time

Linn1 — Wed, 12 Apr 2023 06:30:02 GMT

Watchdog timer, set to refresh the WD in 3/4 of the period (open window). It means that the MCU is reset by the SBC .

Re: SBC Watch Dog refresh time

guoweisun — Thu, 13 Apr 2023 01:00:23 GMT

after you set the WD period time,did you correctly feed the WD? What's the error count?

Re: SBC Watch Dog refresh time

Linn1 — Fri, 14 Apr 2023 01:07:56 GMT

We have solved, need to set correct WD period time. Thanks !