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RS232 interface executes the role of Transportation and Communication, which has became the important interface between MCU of embedded system and peripheral equipment. Because RS232 mainly work in bottom of communication protocol, so it is important to protect the infrastructure of RS232. In test, pulse double electromagnetic is pulled into RS232 data transmission lines by coupling clamp, simulated...
A method of developing an A16/D16 register based VXIbus device, which is a C size mould and has one module multiple usages figure, is introduced. As a platform with plug-in boards, the interface circuits and the internal bus controlling circuits are integrated on the mother board. The functional circuits, controlled by the VXIbus commander through the internal bus, are implementing on wiring boards...
To the size C VXIbus model, it's PCB (printed circuit board) is large enough to bearing several function circuit. But the A16 register based slave device only has 64 bytes address space to be used as operation registers and special registers. This paper gives a simple technique to expand the register address space, which was being used in special VXIbus module for testing missile. The external memory's...
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