STM32 MCUs products

WWDG RESET Due to osDelay

Behaviour of WWDG on STM32L071KZUx.We are trying to read and write 256bytes from the Slave. In a specific case the Slave needs delay of 120ms to process the data when we add 120ms of delay in the MCU, the void HAL_WWDG_EarlyWakeupCallback(WWDG_Handle...

I am using a STM32G474 and testing it in a nucleo-64 board. When I enable the hardware window watchdog and the hardware independent watchdog my software does not run. it seems to get stuck after each startUp.

The hardware watchdogs is set through an option byte modification done by software and right afterwards the WWDG and IWDG init functions are called as well as the refresh API, called periodically. If I change my code to use the SW WWDG and IWDG then ...

STM32U575 Analog Watchdog with Oversampling on ADC1. Need clarification of the reference manual

Hi,One of our project is using the STM32U575 and we use the ADCs analog watchdog feature of the CPU. At the beginning of the project, we did not used the ADC oversampling, but for stability and reliability purpose, we have turned on the ADC oversampl...

Executing the __HAL_RCC_WWDG_CLK_ENABLE() function immediately resets the CPU.

I enabled WWDG on the MX and there were no other settings. MX_WWDG_Init(); As the function executes, the CPU resets, and when I look closely, I see that __HAL_RCC_WWDG_CLK_ENABLE(); As soon as the function runs, the CPU is reset. What should I do?Bel...

Resolved! IWDG not stopping on debug when CAN Receive interrupt triggered

I'm having a significant problem debugging my board with CAN traffic. Whenever the debugger is paused, and a CAN message is received via interrupt, the independent watchdog is being reset. As far as I can tell, I'm disabling that peripheral on debug ...

Timing issue when TIM10 interrupts HAL IWDG macro

I am using a STM32F746VET6 to drive time critical signals on up to 14 pins. I am bit banging these signals in the ISR. I was surprised to find after a benign change I started to have jitter in these signals. I tracked it down to the ISR firing during...

Resolved! STM32H750VBT any reset(IWDG, WWDG and SYSTEMRESETREQ) is not working as expected

Hi, I have a board that has STM32H750VBT mcu. When i try to reset the uC using IWDG, WWDG or CMSIS SYSTEMRESETREQ device is not reset as expected. I want the mcu to start the application as expected but it is not starting. With debugger or without de...

Stop STM32L IWDG

Using the IWDG within STM32L452 in its window mode.At some point the application needs to freeze the IWDG module functionality, or as a minimum make it work as in non-window mode.Is this possible? If yes, using which function?Note the I couldn't loca...

STM32U5 sometimes does not reconfigure IWDG.

At startup, I set the watchdog timer to 8 seconds.IWDG->KR = IWDG_KEY_ENABLE; IWDG->KR = IWDG_KEY_WRITE_ACCESS_ENABLE; IWDG->PR = IWDG_PRESCALER_64; // 8 s IWDG->KR = IWDG_KEY_WRITE_ACCESS_DISABLE;Further, in the interrupt, when the button is pressed...

how to check the watch dog timer?

I'm using watch dog timer with STM32F103C8T6. how i check watch dog timer is working or not working.