Design And Implementation Of Main Control Module Of Onboard Information Acquisition System

As electronic technology and computer technology advancing, Data AcquisitionSystem Onboard has improved from a small amount of data collection, recording anddisplay to real-time acquisition, processing and transmission of a large number ofanalog signals. Large amounts of data collection requires lots of sensors, real-time andmulti-task management capabilities of the Data Acquisition Syatem Onboard requirefurther improvement to meet the demands. As the core of the data acquisition, the maincontrol module controls the entire operation of the system, which put forward higherrequirements to the system capacity and the bus capacity. In this paper, we design andimplement the main control module of Distributed Data Acquisition System Onboard tomeet these demands.First, the system uses a modular approach to design the main control modulehardware and achieves in the processor chip an embedded Bootloader. The Bootloaderachieves FLASH, SDRAM, and the network’s chip initial configuration. At the sametime, according to the characteristics of the Distributed Data Acquisition SystemOnboard, we use FPGA chip to complete the design of the distributed MCMB Bus,achieve a distributed master, slave bus interface, complete the operation of special cycle,configuration read and write, I/O read and write, memory read and write and ahigh-speed of two-way data transmission. Finally, the simulation results of MCMBinterface proves the correctness of the design.The design of the system has completed the hardware implementation and usertesting, the test results achieve the intended demands.