Multichannel SSI (small scale integration) data collecting module based on MicroBlaze soft core

Abstract

The invention relates to a multichannel SSI (small scale integration) data collecting module based on a MicroBlaze soft core. The multichannel SSI data collecting module has the main technical characteristics that the multichannel SSI data collecting module comprises an SSI multichannel collecting unit and the MicroBlaze soft core arranged in an FPGA (field programmable gate array), wherein the SSI multichannel collecting unit consists of a register array and a data collecting unit, on one hand, the register array is connected with a CPU (central processing unit) through a PLB (processor local bus), on the other hand, the register array is connected with the data collecting unit, the data collecting unit is connected with an encoder through a signal wire and is used for collecting data of the encoder and transmitting the data to the register array, and the register array transmits the collected data to the CPU through the PLB. The multichannel SSI has the advantages that the data collecting and processing functions of multichannel encoders are realized through the SSI multichannel collecting unit and the MicroBlaze soft core arranged in the FPGA, the whole data collecting and processing processes can be respectively completed in the FPGA, and the data transmission path and the operation path are shortened, so the multichannel data collecting speed is accelerated, and the problems of slow data collecting process and long operation period are solved.

Description

technical field [0001] The invention belongs to the technical field of data acquisition, in particular to a multi-channel SSI data acquisition module based on MicroBlaze soft core. Background technique [0002] Data acquisition technology is to collect analog signals such as temperature, pressure, flow, and displacement of sensors and convert them into digital signals that can be recognized by computers, and finally perform corresponding calculation, storage and processing. The monitoring and control functions of certain physical quantities can be realized by using data acquisition technology. [0003] The existing data acquisition system is generally implemented in the form of a shift register + state machine, mainly composed of a control unit, a receiving unit, a sending unit, a bus, and a PC. Its characteristics are as follows: 1. Receive data: from the serial pin Receive data→send data to shift register→send data from shift register to data buffer; 2. Send data: take da...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a multi-channel SSI data acquisition module based on FPGA, which solves the problems of slow data acquisition process and long operation cycle

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