Thank you for response about Solved: Re: Dual Core: RT1170 Watchdog Setup - NXP Community. However, I have a few more questions.
Can WDOG1 internally reset the CPU if MCU pins WDOG_B and WDOG_RESET_B_DEB (aka WDOG_RST_B_DEB), are not connected to anything? If yes, what steps are required to achieve this?
Next for WDOG3 and WDOG4, there appears to be up four clock source options available, but the chip-specific information does not appear to give a clear indication about what those clock sources are and what the order is for each clock source.
Am I looking at the right table? Where in IMXRT1170RM can I find what the 4 clock sources are for WDOG3 and WDOG4, according to register CS[CLK]?
Hi @lsrbigfoot ,
Thanks for your updated information.
I check your question with internal side, I will show you.
9:8: 2’b00 – bus clock for wdog3 and lpsr bus clock for wdog4
2’b01 – LPO clock (sourced from 32k clock)
2’b10 – INTCLK (sourced from 32k clock)
2’b11 – ERCLK (1m clock)
As for Wdog3 demo , I suggest you can refer to "evkbmimxrt1170_rtwdog_cm7".
Wish it helps you.
If you still have question about it, please kindly let me know.
Wish you a nice day!
Best Regards
MayLiu
Fair enough, I see the list of WDOG3/4 sources in MIMXRT1170RM chapter 72.1.7.
But how can I exactly identify each clock source from register bits CS[CLK]?
I couldn't tell from the clock source definitions in fsl_rtwdog.h (see rtwdog_clock_source_t).
Please advise.
Hi @lsrbigfoot ,
Thank you for your interest in the NXP MIMXRT product, I would like to provide service for you.
Question1: Can WDOG1 internally reset the CPU if MCU pins WDOG_B and WDOG_RESET_B_DEB (aka WDOG_RST_B_DEB), are not connected to anything? If yes, what steps are required to achieve this?
Answer: Yes, you can.
I suggest you can refer to NXP SDK demo "evkbmimxrt1170_wdog01_cm7".
Question2: WDOG3 and WDOG4 clock source
Answer: Please check MIMXRT1170RM chapter 72.1.7 Watchdog Timer (WDOG3,4)
Wish it helps you.
If you still have question about it, please kindly let me know.
Wish you a nice day!
Best Regards
MayLiu