Hello I update the error information. While the output of ISERDES (build over Black Box) connects to shared bram of CASPER library, reinterpret, soft register of CASPER library and snap, the error still occurs. Only one situation the error disappears that is the output of ISERDES connects nothing or connects to scope over gateway out. This is very confused me! The simulation in Simulink is OK, but during generateing bof file, the error will occur at mapping stage. And I can get the error message: ERROR:PhysDesignRules:1242 - Invalid connection used for ISERDES. Also the error appears in the "input" of ISERDES. Any idea?
Regards, C-H Cheng