SCTL & FIFO strange behaviour

Hello everybody,

my code inside the sctl aquires a digital sensor signal and also the current position.

The time between falling edges is measured and written into the fifo.

If the code recognize a trigger sequenze from the digital sensor signal,I write the current position,Voltage and also current into the fifo.

I read the FIFO elements on a RT system, most of the time the read date is perfect.

But sometimes there are a lot of zeros elements and i dont know where are the zeros come from.

I never write the value zero.

So does anybody have an idea where the zeros come from and why?

Normal

With the zeros: