input: ECD_TK_SHOT :SCM_IDLE,SCL_RDY,SDR_IDLEcamdriv_out: symbol=EDR_BUSY, output=HWBUSY
input: ECM_IDLE :SCM_IDLE,SCL_TK_SHOT,SDR_BUSYcamdriv_out: symbol=ECA_TK_SHOT, output=take shot