I can't check the inputs with boundary scan . I 'm able to set output pins and Z state but It's imposible for me to check the input. For example, in I2C I manage to make all the trace but I'm not able to check the respond ACK . Even though, I know the respond It's OK because I'm using an oscyloscope to check it. I don't know how I have to set the bsr register to check the input, I paste piece of my svf script( In the first row the 8 it's the z state to allow the I2C slave respond but I don't know how to check them. Can I have some help, please?
SDR 648 TDI (000000000000000000100800000000000000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000004000000144)