STM32 MCUs products

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Forum Posts

How to use iwdg in stop mode with stm32l0xx?

Posted on January 19, 2017 at 14:32Hi, I have a problem with low power mode. I want to use the watchdog with the stm32l0xx.But when I go in stop mode, I can not disable or frooze the watchdog counter (only possible with l4 family).And in a perfect w...

IWDG short period (125 us) problem

Posted on February 23, 2017 at 13:04Hello,We are developing a PV converter and we have choose an STM32F407VGT microcontroller in order to controlling its power electronics and communications. We are using the ♯ in order to ensuring that the software...

STM32L053R8 IWDG freeze in stop mode

Posted on October 25, 2016 at 15:24Hi,I've implemented the IWDG for STM32L053R8 board and want to know if IWDG can be freezed in Low power STOP mode? I tried programming Flash option bit register, user configuration bit but still see IWDG resetting ...

the IWDG_STOP bit in the FLASH_OPTR register

Posted on December 15, 2016 at 22:59I have a STM32L152 device which spends most of its time in STOP mode, waking perhaps once an hour. I'd like to add IWDG support, but need to 'freeze' the IWDG during STOP mode, which per STM docs can be done.I hav...

STM32F4: Catch the last PC address before WD reset

Posted on September 20, 2016 at 11:20Hi all. I am trying to catch the last PC value before WD reset. For doing that I am configuring the WWDG and enabling its interrupt. then, while the WD interrupt fire I am writing the important information (i.e.,...

yonatan by Associate II
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Posted on July 17, 2015 at 16:18Hi,I am having problems to run the WWDG in a STM32F405.I am using the HAL Drivers from Cube MX.The process is the following:{__HAL_RCC_WWDG_CLK_ENABLE();MX_WWDG_Init();HAL_WWDG_Start(&hwwdg);HAL_WWDG_Refresh(&hwwdg,12...

lucas23 by Associate II
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IWDG disbale steps for STM32F2xx/STM32F4xx

Posted on March 28, 2016 at 16:05I learned that, to enable IWDG we need to write 0xCCCC to IWDG->KR register.I have a situation where I enable IWDG peripheral in bootaloder image and I want to disable IWDG in Application.Can anyone help me to unders...

vinay2 by Associate
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WWDG EWI interrupt Issue

Posted on March 28, 2016 at 17:57Hi all,I have a serious issue with the EWI (Early wakeup interrupt) of the WWDG.I'm using STM32F103 and I'm based on the example of the firmware libraries, I add the configuration of the EWI interrupt : the source co...

JEN by Associate II
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STM32F103 watchdog problem

Posted on February 24, 2016 at 16:02Hello together, I have some problems with the IWDG of the STM32F103RBT6. I hope you can help me. The initialization:   // Clear reset flags   if( RCC_CSR & (1 << 29))   {     RCC_CSR |= (1<<24);   }        /* Conf...