Communication circuit among a plurality of ARMs (Acorn RISC Machine) and communication method of communication circuit
A communication circuit and communication method technology, which is applied in the combination of various digital computers, etc., can solve the problems of complicated wiring, limited system scalability, obtaining different addresses, etc., and achieves high communication efficiency, reliable communication efficiency, and simple programming. Effect
Inactive Publication Date: 2014-12-17
南京乾纬智能科技有限公司
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Problems solved by technology
This solution not only brings efficient and reliable communication, but also greatly limits the scalability of the system. When the number of slaves is large, the wiring is already very complicated.
[0003] In order to solve the above-mentioned problems, serial ports are used as little as possible in the communication system now, but this also brings the following problems: 1. How do ARM slaves with the same status obtain different addresses; 2. How do ARM slaves have unique addresses? Can communicate with ARM master without interference from other ARM slaves
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[0048] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0049] Such as figure 1As shown (the lines except the communication line are omitted in the figure), it includes an ARM host and several ARM slaves; the ARM host is connected to a serial bus through the first serial port module, and all ARM slaves include several self-contained serial port modules ARM slaves and several ARM slaves without serial port modules, the ARM slaves with serial port modules are connected at any position on the serial bus, and all ARM slaves without serial port modules are connected through the second serial port module The first serial port module, the second serial port module and the serial port module of the ARM slave have the same structure, mainly consisting of a U...
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The invention discloses a communication circuit among a plurality of ARMs (Acorn RISC Machine). The communication circuit comprises an ARM host machine and a plurality of ARM slave machines, wherein each ARM slave machine comprises a plurality of ARM slave machines with serial modules and a plurality of ARM slave machines without serial modules; the ARM slave machines with the serial modules are connected at any position of a serial bus; all ARM slave machines without the serial modules are connected to a serial bus through second serial modules; first serial modules, the second serial modules and the serial modules arranged on the ARM slave machines are consistent in structure; each of the first serial modules, the second serial modules and the serial modules mainly comprises a USB-TTL (universal serial bus-transistor-transistor logic) serial module serving as a control interface and a USB-TTL serial module serving as a data interface; data transmitting pins of the two USB-TTL serial modules of the second serial modules are connected with data receiving pins of the ARM slave machines without the serial modules; data receiving pins of the two USB-TTL serial modules of the second serial modules are connected with data transmitting pins of the ARM slave machines without the serial modules. The invention also discloses a communication method of the circuit. The aim of effective and reliable communication is fulfilled by the communication circuit and the communication method.
Description
technical field [0001] The invention relates to a communication circuit among multiple ARMs and a communication method thereof, belonging to the technical field of communication. Background technique [0002] At present, ARM developers are often used to equip each slave with a serial port to communicate with the host in the design of multi-single-chip communication system. This solution not only brings efficient and reliable communication, but also greatly limits the scalability of the system. When the number of slaves is large, the wiring is already very complicated. [0003] In order to solve the above-mentioned problems, serial ports are used as little as possible in the communication system now, but this also brings the following problems: 1. How do ARM slaves with the same status obtain different addresses; 2. How do ARM slaves have unique addresses? Can communicate with ARM master without interference from other ARM slaves. Contents of the invention [0004] In ord...
Claims
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Inventor 王灿
Owner 南京乾纬智能科技有限公司