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FII-PRX100 Hardware Reference Guide
Fraser Innovation Inc
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The development board has two power supply modes, one is for external 12V DC
power supply.
(please use the power supply that comes with the development
board, do not use other specifications of the power supply to avoid damage to the
development board)
Its power supply interface is as follows:
Figure 2.3 External Power Supply Interface
The second way is to use the USB cable to connect the "CPU_TAG" interface. See
Figure
2.4
.
Figure 2.4 Internal Power Supply Interface
It should be noted that regardless of the power supply method, the power selection
jumper needs to be connected to the correct position. As shown below:
Figure 2.5 Power Supply Selection Jumpers
By the way to mention the power supply circuit of the development board
and the power supply of the FPGA. The external 12V power supply is converted to
a 5V power supply through the U19 power supply chip and connected to the pin 1