hw in loop co_simulation in matlab xilinx system generator e

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hi,i'm working with that hw in loop co_simulation in matlab xilinx system generator and i encounter an unacceptebale error that"s (("Illegal Period, This blocks attempts to set period that is a non-integer multiple of the system rate Error occurred during "Block Configuration" Reported by:
'figgg/puls/puls'.
.that is not a non _ integer multiple of system rate at all,i'm attaching my file here for anyone give me a sugestion or solution.((it include a blackbox m-file(road) that must be added to design if saying not found ))