Trigger camera via SeagullMAP2 on pixhwak

Hi everyone. I’ve a problame about the method for trigger camera via SeagullMAP2
and my setup below:

  • INTITAIL SETUP>> SHUTTER CH7 >> PUSH 1700,NOT PUSH 1500
  • LED >> FADING ( Ready for next command)
  • Camera on
    then I order the mission planner to trigger now. But no response from my camera.