MAX488 can point to multipoint communication, why can I do a bit of two communications, but on three points, there is no any data returned, strives for the great god answer

CodePudding user response:

If there is problem of your circuit

CodePudding user response:

reference 1st floor McUatmel response:

you have a problem whether the circuit

https://bbs.csdn.net/topics/393061616 circuit diagram here

CodePudding user response:

Each device you this part of the circuit is a kind of communication?
If it is a kind of, so, you try to remove equipment 120 r resistance, only on the fore and aft equipment with 120 r resistor, a try,