Part 6: Usb To Serial Port - Alinx AXKU040 User Manual

Part 6: USB to Serial Port

The AXKU040 FPGA development board is equipped with a Uart to USB
interface for serial communication and debugging of the development board.
The conversion chip uses the USB-UAR chip of Silicon Labs CP2102GM. The
CP2102 serial chip and the FPGA are connected by a level-shifting chip to
adapt to different FPGA BANK voltages. The USB interface uses the MINI USB
interface, which can be connected to the USB port of the upper PC for serial
data communication on the FPGA development board with a USB cable. The
schematic diagram of the USB Uart circuit design is shown below:
USB to serial port pin assignment:
Signal Name
UART_RX IO_T2U_N12_CSI_ADV_B_65
UART_TX IO_T3U_N12_PERSTN0_65
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KINTEX UltraScale+ FPGA Board AXKU040 User Manual
Figure 6-1: USB to serial port schematic
FPGA Pin Name FPGA Pin
Number
N27
K22
Description
Uart Data Input
Uart Data Output
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