Focusing and zooming system based on FPGA
A technology of focusing and programming logic, applied in the field of photoelectric detection, can solve the problems of poor real-time performance, equipment damage, busy single-chip microcomputer work, etc., to achieve the effect of improving stability, reducing system costs, and quickly completing functions of the system
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[0014] Hereinafter, the present invention will be further described in detail with reference to the accompanying drawings.
[0015] Refer to figure 2 , FPGA-based focusing and zooming system, including level conversion circuit 1, optical coupling circuit 2, optical coupling configuration circuit 3, programmable logic device FPGA4, dimming and focusing drive circuit 5. The human-computer interaction device sends a focus and zoom command to the programmable logic device FPGA4 through the level conversion circuit 1, and the programmable logic device FPGA4 sends corresponding logic to the focus and zoom drive circuit 5 according to the command. The focus and zoom drive circuit 5 is based on The logic output corresponds to the voltage to control the motor.
[0016] Refer to image 3 In the embodiment of the present invention, the man-machine switching module sends a focus and zoom signal to the FPGA module 4 through the level conversion circuit 1, and the bus includes TX and RX. The mo...
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