Interconnectable hart communication protocol chip and using method thereof

Abstract

The present invention provides an interconnectable HART communication protocol chip and its use method, which includes a power supply module, an AXI4 bus module, a CLK clock management module, a RAM data storage module, a data frame analysis module, a longitudinal parity check module, and a data packaging module And signal modulation and demodulation module. Its working method specifically includes: the method of sending data by the chip: when the CPU writes data to the slave device, the chip receives the data, and stores the data in the RAM memory and the register stack; after the longitudinal parity check, the data is packaged, and the data signal is adjusted to The square wave is used as the chip output signal; and the method for the chip to receive data: convert the received square wave signal into a digital quantity, and transmit it to the data frame analysis module to analyze the DATA data bytes, and save it to the RAM memory after the vertical parity check , and finally uploaded to the CPU through the AXI4 bus for processing. The invention makes the HART chip more flexible, unified and standardized, and improves the data interaction between the CPU and the HART chip.

Description

technical field [0001] The invention relates to the field of chip manufacturing, in particular to an interconnectable HART communication protocol chip and a use method thereof. Background technique [0002] The chip industry is the upstream of the manufacturing industry. It is called "industrial food" and is an indispensable core technology for the manufacturing industry. At present, manufacturing transformation is being vigorously carried out to promote the development of high-end manufacturing, and the chip industry has become an extremely important link in this process. With the development of the Internet of Things, communication technology has also ushered in technological changes. Communication technology has become a technical field that is vigorously developed in the form of mobile access, real-time communication, broadband transmission, ubiquitous computing, and sensor interconnection. [0003] In modern factories, HART (Highway Addressable Remote Transducer, an op...

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Problems solved by technology

[0005] Aiming at the problems that the traditional HART chip is limited to the fixed manufacturer's equipment, the use flexibility is poor, the equipment interface is backward, the data transmission volume is low, the wiring density is low, the number of wiring is large, and the lack of interoperability between smart instruments, etc., the present invention provides an interconnectable HART communication protocol The architecture of the chip and how it is used

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