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FPGA Video Processing Development Platform AV4075 User Manual
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Figure 3-6-1: Power input pin
If you need to debug the core board separately, power the core board
through the Mini USB port (J2) of the core board, the Mini USB cable is
connected to the USB port of the computer.
When the user supplies power to
the core board through the Mini USB port (J2), it cannot be powered through
the carrier board. Otherwise, current conflict may occur and the USB interface
of the computer may be burned out.
Figure 3-6-2: Mini USB on the Core Board
Part 3.7: Crystal oscillator on Core Board
The core board carries a 50M active crystal oscillator and a 27M active
crystal oscillator. The 50MHz clock is connected to the G1 pin of the FPGA,
and the 27MHz clock is connected to the T22 pin of the FPGA.