Solved
Wrong reference temperature given in ds H747
Hi,
in ds for STM32H747xI/G , DS12930 Rev 2 , for Temp.sensor CAL2 : 130° (Parameter) is written here:

BUT max. temp for chip is 125° :

So i assume, this is misspelled , because in all other : (H743, H750, H7A3 ..) 110° + 30° are given.
NOT 130° .
