Roger gl1800

Hello. I hope somebody can help me here. I have a 2008 xt125x for my son. Suddenly it stopped, and I checked for spark, but no spark at all. Have tried new ignition coil, trigger coil and stator, but no spark. Can someone tell me if the trigger coil should have 12volt input, or less volt, or negative ground? I can't see trigger coil is getting any power at all. Is it the ecu that will feed it with power? Maybe I have a broken ECU? Best regards Roger in Norway.