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A serial communication system

A serial communication and communication data technology, applied in the field of communication, can solve the problems of increasing hardware cost, unable to meet the requirements of bus diversification configuration, etc., and achieve the effect of improving flexibility

Active Publication Date: 2022-03-18
KYLAND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, using couplers to be compatible with high-speed buses and low-speed buses not only introduces additional hardware for couplers, but also increases hardware costs
Moreover, for the application scenario where high-speed and low-speed buses are mixed, the bus configuration mode can only be the mode of high-speed bus in front and low-speed bus in the back, so it cannot meet the diversified configuration requirements of the bus in the application scenario

Method used

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Examples

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Embodiment 1

[0027] figure 2 It is a schematic diagram of a serial communication system provided by Embodiment 1 of the present invention, such as figure 2 As shown, the structure of the serial communication system includes: a master device 10 and a plurality of slave devices 20, the slave devices 20 include a first slave device 210 and a second slave device 220, each first slave device 210 and each second slave device 220 are installed according to random positions, wherein: the master device 10 and each first slave device 210 are connected for communication through a daisy-chain serial bus 30, and the daisy-chain serial bus 30 performs high-speed data transmission through a serial differential transmission mode; The master device 10 is connected to each second slave device 220 through the universal serial bus 40, and the universal serial bus 40 performs low-speed data transmission in a polling manner.

[0028] Wherein, the master device 10 may be used to send control instructions or i...

Embodiment 2

[0037] This embodiment is embodied on the basis of the foregoing embodiments. In the embodiment of the present invention, a specific implementation manner of high-speed data transmission between the master device and each first slave device is given.

[0038] Figure 4 It is a schematic structural diagram of a serial communication system applied to a high-speed bus application scenario provided by Embodiment 2 of the present invention. In order to more clearly illustrate the principle of high-speed data transmission, the structure of the serial communication system omits the second slave device. In an alternative embodiment of the present invention, as Figure 4 As shown, the processor of the master device 10 may include an LVDS interface; the processor of the first slave device 210 may use an FPGA (Field-Programmable Gate Array, Field Programmable Gate Array) chip. The processor of the master device 10 and the processors of each first slave device 210 may be connected in co...

Embodiment 3

[0073] This embodiment is embodied on the basis of the foregoing embodiments. In the embodiment of the present invention, a specific implementation manner of low-speed data transmission between the master device and each second slave device is given. At the same time, a specific implementation method for the master device to perform high-speed data transmission and low-speed data transmission at the same time is given.

[0074] In the embodiment of the present invention, the master device can be used to determine the target second slave device according to the forward serial sequence of the second device, send downlink communication data to the target second slave device through the universal serial bus, and receive the target second slave device After the second slave device feeds back the uplink communication data for the downlink communication data, it updates the target second slave device according to the forward serial sequence of the second device; the target second slav...

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Abstract

The embodiment of the present invention discloses a serial communication system, including: a master device and a plurality of slave devices, the slave devices include a first slave device and a second slave device, each of the first slave devices and each of the second slave devices The two slave devices are installed according to random positions, wherein: the master device and each of the first slave devices are connected through a daisy-chain serial bus for communication, and the daisy-chain serial bus is implemented through a serial differential transmission method High-speed data transmission: The master device communicates with each of the second slave devices through a universal serial bus, and the universal serial bus performs low-speed data transmission in a polling manner. The technical solution of the embodiment of the present invention can configure the bus according to the configuration requirements of the bus in the application scene of the serial system without additionally increasing the hardware cost, thereby improving the flexibility of the bus configuration in the serial communication system.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of communication, and in particular to a serial communication system. Background technique [0002] The bus (Bus) is the public communication trunk line for transmitting information between various functional components of the computer, and it is widely used in the communication system. Generally, the bus structure is divided into two types: parallel and serial. Among them, the parallel bus transfer rate is higher, and the serial bus transfer rate is lower. Considering the requirements, implementation difficulty and cost comprehensively, the bus usually adopts a serial bus. The common serial bus is divided according to the communication rate. If the rate is below 50M, it can be called a low-speed bus; if the rate is above 50M, it can be called a high-speed bus. [0003] In general communication systems, controllers usually support only one type of bus. However, in actual use, so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40H04L12/42
CPCH04L12/40006H04L12/42
Inventor 赵字羽邓其生陈超
Owner KYLAND TECH CO LTD
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