About kpate.11

kpate.11 · 2021-01-25

In code, we do not have call for changing RDP but we have a logic to reset IWDG_STOP bit after wakeup from sleep mode. We are facing this option byte corruption problem when battery drops below 0%. (We do not have HW support for cutting off power for...

kpate.11 · 2020-01-22

I have multiple boards of STM32L476 board. In our application, we have OTA module in which we use dual bank feature.The OTA flow is like:1) Read data from SPI2) Write to Bank 2's pages in incremental order3) Once all data are transferred, go for flas...

kpate.11 · 2021-02-09

Okay. I resolved the issue with work around. I changed logic to set option byte to just bootup time to reduce the probability of getting it corrupted. Moreover, I have seen MCU to get stuck while option byte write. Which I solved using proper method ...

kpate.11 · 2021-01-28

Yes. My Bad. Appologies for wrong part number. Its actually L476. We are not modifying IWDG_STOP bit after wakeup. But, system will check if it is set then only it will go for resetting it.

kpate.11 · 2021-01-27

@Uwe Bonnes Yes we can do that. But my question is doing flash read/write operation in abnormal power condition can corrupt option byte?

kpate.11 · 2021-01-27

@Piranha We are using software watchdog and STOP2 mode for power saving. So in stop2 mode if watchdog is enabled and IWDG_STOP bit is not reset then it keeps waking up the MCU.

kpate.11 · 2021-01-27

My Bad. Its STM32L476.

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We are using STM32L476 in our application in which we have seen accidental change in RDP level when battery voltage drops below 0%. Is there any corner case we should take care?

STM32L476 hangs when HAL_Flash_OB_Launch is called

Re: We are using STM32L476 in our application in which we have seen accidental change in RDP level when battery voltage drops below 0%. Is there any corner case we should take care?

Re: We are using STM32L476 in our application in which we have seen accidental change in RDP level when battery voltage drops below 0%. Is there any corner case we should take care?

Re: We are using STM32L476 in our application in which we have seen accidental change in RDP level when battery voltage drops below 0%. Is there any corner case we should take care?

Re: We are using STM32L476 in our application in which we have seen accidental change in RDP level when battery voltage drops below 0%. Is there any corner case we should take care?

Re: We are using STM32L476 in our application in which we have seen accidental change in RDP level when battery voltage drops below 0%. Is there any corner case we should take care?