The dry coupling ultrasonic testing method does not require the application of liquid coupling agents such as water or oil on the surface of the material to be tested. It is easy to operate and flexib
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In the same batch of boards, other boards can work normally, but one board cannot communicate with the processor. Reading the registers shows all zeros, and the Linux system of this board cannot find
The modelsim simulation of the shift-add multiplier written in vhdl does not meet expectations. I can't find the problem myself, and hope to get your advice
Original code
LIBRARY IEEE;
USE IEEE.STD_LO