Lichee Tang Nano20K FPGA User Guide

【Introduction】

Tang Nano 20K is a development board, using the GW2AR-18 QN88 FPGA, containing 20736 LUT4 logic cells and 15552 Filp-Flops. There are 2 PLL in this FPGA chip, and many DSP units supporting 18 bit x 18 bit multiplication. Onboard BL616 is used for downloading bitstream into FPGA, and it's also used as USB to serial convertor to communicate FPGA with computer via UART. The 27MHz crystal generates the clock for HDMI display, onboard MS5351 clock generating chip also provides mutiple clocks.

【Rendering appearance】

【Parameters】

Item

Detail

Others

FPGA Chip

GW2AR-LV18QN88C8/I7

Logic units(LUT4)	20736
Flip-Flop(FF)	15552
Shadow SRAM (S-SRAM)(bits)	41472
Block SRAM (B-SRAM)(bits)	828K
Numbers of B-SRAM	46
32bits SDR SDRAM	64M bits
Numbers of 18x18 Multiplier	48
Numbers of PLLs	2
I/O Bank	8

Onboard debugger

BL616

· JTAG for FPGA
· USB to UART for FPGA
· USB to SPI for FPGA communication
· Control MS5351 generate frequency

Clock generator

MS5351

Provide extra 3 clocks for FPGA
CLick me to see how to config MS5351

Display interface

· 40Pins RGB lcd connector
· HDMI interface

LED

Low voltage level enable

RGB LED

WS2812

User key

TF Card Slot

PCM Amplifier

MAX98357A，for audio driving

Storage

64Mbits Flash

To save bitstream

Size

22.55mm x 54.04mm

Visit 3D file for more information

【Function diagram】

【Pin diagram】

【FPGA Jtag test point】

We reserved jtag test point on Tang Nano 20K, for those who want to use their own debugger.

Note: There is onboard Jtag for download FPGA firmware, so this Jtag test point is only for those who want to use their own debugger.

【Hardware information】

Datesheet
Schematic
PCB BOM(Visit the html file in your board version)
Board Size
Bosrd 3D File
Part of chip datasheet

【Using guide】

Install IDE -> Prepare your code -> Burn into board

Install IDE Click me
Unbox

More example codes Github

】Studying resource

Verilog tutorial:Verilog
Verilog Practice：HDLBits

【Questions】

】How to store bitstream

Tang Nano 20K uses the external Flash to save the firmware, we need to download the bitstream to store the firmware.

】Visit Tang Questions to find more solutions

【Support】

Monday-Friday (9:30-6:30) Saturday (9:30-5:30) -China time
Email: services01@spotpear.com

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Sipeed Lichee Tang Nano 20K FPGA RISCV Open-Source Retro-Game Linux MINI Development Board GW2AR-18

】Studying resource

【Questions】

】How to store bitstream
】Visit Tang Questions to find more solutions

【Support】