data communication system
A data system and communicator technology, applied in the electronic field, can solve the problems of not supporting the reverse connection function, wasting resources, etc.
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Embodiment 1
[0050] This embodiment provides a data communication system.
[0051] figure 1 A schematic diagram of the architecture of a data communication system provided in this embodiment, such as figure 1 As shown, the data communication system provided in this embodiment mainly includes: a master communication device 10 and a slave communication device 20 . Such as figure 1 As shown, in this embodiment, the master communication device 10 and the slave communication device 20 perform data communication through the two-wire communication interface, and when the master communication device 10 and the slave communication device 20 are forward connected through the two-wire communication interface, that is, the master communication The first communication sub-interface of the device 10 is electrically connected to the first communication sub-interface of the slave communication device 20 , and the second communication sub-interface of the master communication device 10 is electrically co...
Embodiment 2
[0057] This embodiment provides a master communication device 10, figure 2 A schematic structural diagram of a master communication device 10 provided in this embodiment. Such as figure 2 As shown, the main communication device 10 includes: a power supply interface 100 connected to a DC power supply, a first wired communication interface 110, a first main control chip 130, and a first energy storage component 140; wherein, the first wired communication interface 110 is composed of a first communication sub-interface 111 and a second communication sub-interface 112; the power supply interface 100 is electrically connected to the first communication sub-interface 111, and the first end of the first energy storage component 140 is connected to the power supply The interface 100 is electrically connected to the connection point of the first communication sub-interface 111; the second communication sub-interface 112 is electrically connected to the ground terminal GND_M of the m...
Embodiment 3
[0064] This embodiment provides another main communication device 10. The difference between the main communication device 10 provided in this embodiment and Embodiment 2 is that in this embodiment, the first main control chip 130 is also used for When the communication device 10 sends a high-level signal, it outputs a second signal from the control port.
[0065] In this embodiment, the first signal is a level signal whose voltage value is lower than the second voltage, wherein the second voltage is lower than the voltage value at the power supply interface; The level signal of the second voltage.
[0066] Such as image 3 As shown, the first energy storage component can be a capacitor ( image 3 shown in C1). The first end of the first energy storage component is respectively connected to the power supply interface ( image 3 V_MPWR shown), the first communication sub-interface ( image 3 Port 1 in the number 11 shown is the first communication sub-interface, port 2 in ...
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