About Pablo Devanne

Pablo Devanne · 2017-03-20

Posted on March 20, 2017 at 15:53Hi,In my application I'm using the Independent watchdog on a STM32F407 with a maximum reload period of 2 ms. During some maintenance operations, we need to save some configuration parameters in flash memory. Even if ...

Pablo Devanne · 2017-03-24

Posted on March 24, 2017 at 10:42 To completely safe we need to check for PVU and RVU to be reset before writing them. The following code seems to work : while((IWDG->SR & IWDG_SR_RVU != 0) || (IWDG->SR & IWDG_SR_PVU != 0)) { // Continue...

Pablo Devanne · 2017-03-23

Posted on March 23, 2017 at 16:47Thanks I will try this solution and come back to you.But if I understand well, if I configure the watchdog for a 2 seconds period in order to erase my sectors and write them, I will have to wait for 2 seconds to get ...

Pablo Devanne · 2017-03-23

Posted on March 23, 2017 at 16:40Actually I can't really afford a MCU reset for maintenance operations because it will cause a re-initialization of the whole system ...Thanks for the temperature dependent erase time information I will try the soluti...

Pablo Devanne · 2017-03-23

Posted on March 23, 2017 at 09:47A solution could be to locate the IVT in RAM and to use a timer to generate a 1ms interrupt, the ISR would be in ram and would kick the watchdog. Then, when the maintenance operation is done, de-initialize the timer ...

User statistics

User Activity

STM32F407 : IWDG and erase flash sector

Re: STM32F407 : IWDG and erase flash sector

Re: STM32F407 : IWDG and erase flash sector

Re: STM32F407 : IWDG and erase flash sector

Re: STM32F407 : IWDG and erase flash sector