jsWarn does not show vars correctly

My guess in period and pulseLength are uint64 values, not uint32? This is a classic C printf-style problem.

You just need to cast the values to be 32 bit:

jsWarn("duty:%f,period:%d,pulse:%d \n",dutyCycle,(uint32_t)period,(uint32_t)pulseLength);
jsWarn("duty:%f,pulse:%d,period:%d \n",dutyCycle,(uint32_t)pulseLength,(uint32_t)period);