If the camera is connected to the switch a port, gives off the ends of the line device, one end connected to the switch port, the other end connection circuit boards, always connected computer, the computer can recognize the camera, but in gathering image, don't get any data, and work for a while, prompt camera dropped, I'm not very understand, for network protocol the preliminary judgment is circuit board feedback signal and image data mixed together, to disorganized data reception, later I purposely change the circuit board of the IP to the wrong address, but the image data or to receive less than,
I didn't understand is, even if only I put my computer and circuit board through the wiring in one piece, do not take any action, just started so lamp has been flashing again, frequency is very high, show that the communication between them? Period of time, the lights go to flash, but the frequency is reduced, to ask you, don't know if I can pass the code rewritten circuit boards, circuit board can only receive data without sending data to a computer, also don't understand is, computers and any IP device through the Ethernet cable connection, so the lamp has been flashing, whether the two sides will automatic communication at first, to ensure that the connection is normal, and will not be time to send and receive packets, in order to ensure connectivity, so the light flash frequency decrease, hope everybody can give show just a little, guide the change direction of the next step, in this not appreciate?
CodePudding user response:
Ethernet connection speed automatically consultation, your device to connect switch automatically consultation correlates to the full duplex mode, if you want to achieve 3 computers using a simple device for TCP/IP connection, need to put the card force 10 MB half duplex mode, specific operations can be baidu under Windows