Hello! Many thanks for all reply!!!
I have now check with my oscilloscope on the signals from the controller to the shift-registers,
The SRCK-signal outputs 16 pulses with 2 digits defined so thats seems ok. But the dataline only outputs 8 bits on the same time of the first 8 pulses on SRCK. On the following 8pulses on SRCK is the dataline empty. I have also tried Disp7Test; but the same thing happens, only one digit shows all segments, the other one is dark. And the same with the data line as i described.
I have tried this syntax Write(DISPout,BytetoStr(i):2); but the compiler says. Error: ')' expected. Error ';' expected.
Regards
Thomas