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ZYNQ FPGA Development Board AX7350B User Manual
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PCIE_CLK0_P
R6
PCIE_CLK0_N
R5
SFP_CLK0_C_P
AA6
SFP_CLK0_C_N
AA5
Part 7: USB to Serial Port
The development board is equipped with a Uart to USB interface for
separate power supply and debugging of the core board. The conversion chip
uses the USB-UAR chip of Silicon Labs CP2102GM. The USB interface uses
the MINI USB interface. It can be connected to the USB port of the upper PC
with a USB cable for separate power supply and serial data communication of
the core board.
The schematic diagram of the USB Uart circuit design is shown in Figure 7-1:
Micro USB
ZYNQ
UART-USB
(CP2102-GM)
UART_TXD
U20
U1
BANK
500
UART_RXD
J11
TXD
RXD
D+/-
VBUS
REGIN
Figure 7-1: USB to serial port schematic
USB to serial port ZYNQ pin assignment:
Signal name
ZYNQ Pin Name
ZYNQ Pin
Number
Description
UART_RXD
PS_MIO13_500
B25
Uart data input