Resolved! STM32L451RC are there Problems known for the BSDL File? I tried to do a Boundary Scan but it is not possible to set the Pins I want. I try to write 334 Bit but If I change the state ob a Pin from outside, I see that this Pin appears 120 Cells before.
That is what I send for exsample:SIR 9 TDI (0);SDR 334 TDI (49000000001249240a49249248000000000001249200000000000249249249008000000001249200) SMASK (3fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff) TDO (0) MASK (0...