2018-09-20 05:28 PM
In the previous ST products (mostly the STM32F and L series) I was able to disable the IWDG when code went into debug.
Unfortunately, in the H7 I can see the introduction of new mechanism controlled by bit WDGLSD1 in DBGMCU_APB4FZ1 register.
On the block diagram for the H7 MCUs I can see some correlation to this mechanism:
[image should be attached]
but there is no much of a description how it works.
In previous products there was specific bit to freeze the IWDG, by setting the DBG_IWDG_STOP bit.
Is there anyone who can describe how freezing the watchdog works in the H7 series.
Best regards
Tomasz Zeman