added delay between channels (Boson only) to reduce shutter current, as...

added delay between channels (Boson only) to reduce shutter current, as Netgear switch was failing even with 130W PS (with LiPo - OK)

src/autocampars.php

@@ -843,6 +843,9 @@ function detect_camera(){
 					$frame_nums[$port]=elphel_get_frame($port);
 					fclose($f);
 					log_msg("Started detection for sensor port ".$port);
+					if ($GLOBALS['camera_state_arr']['is_boson640']){
+					    usleep(0.3*1000000); // prevent power problems with simultaneous FFC
+					}
 				}
 			}else{
 				// init framepars anyways - sysfs was updated earlier