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Lichee-Tang-Primer-25K FPGA User Guide

【Overview】

Tang Primer 25K is a minuscule core board (23x18mm) designed based on GW5A-LV25MG121, accompanied by a 25K Dock base board that exposes all pins (excluding MIPI high-speed pins).

The ultra-small core board size can be applied in any volume-restricted scenarios.
The simple base board can connect a USB joystick, plug in a 40Pin SDRAM module, and three PMOD interfaces can connect to an HDMI display, PS2 joystick to form a typical RetroGame console configuration.
It can also be paired with the series of PMOD modules produced by Sipeed, for use in FPGA university teaching.

 


【 Core Board Overview】

 

【Basic Parameters】

ItemParameterSupplement
FPGA ChipGW5A-LV25MG121
Logic Unit (LUT4)23040
Register (FF)23040
Distributed Static Random Access Memory S-SRAM (bits)180K
Block Static Random Access Memory B-SRAM (bits)1008K
Number of Block Static Random Access Memory B-SRAM56
Multiplier (18x18 Multiplier)28
Phase-Locked Loop (PLLs)6
Total I/O Bank8
Flash64Mbits NOR FlashSee Burning to Flash
Overall Packaging2x60P BTB Core Board
General IO75
MIPI IO4lane Data


Dock Base Board Product Image】

 


Board Parameters】

ItemParameterRemark
DebuggerOnboard high-speed debugger, supports JTAG+UART, uses USB-C port for programming
USB-AOne, can be used as a USB1.1 Host to connect game controllers and other HID devices
IO PinOne 2x20Pin 2.54 pinSupports SDRAM module
PMOD3
Button2
Size64x40mm


【Hardware Information】

】Specifications, schematics, dimension drawings, etc. can be found here: Click here


】Getting Started


Prepare Development Environment -> Learn Relevant Syntax -> View Unboxing Guide -> Basic Code Writing -> View Official Documentation


Install IDE: Click here

】Check out the Getting Started Guide to avoid some problems, and you can start coding from there.


】If you feel pressured after completing the above lighting operation, you can fill in the gaps yourself:

You can learn Verilog on the following websites:


  • Online free tutorial: Verilog Tutorial(Learn Verilog)
  • Online free FPGA tutorial: Verilog (English website)
  • Verilog problem-solving website: HDLBits (English website)
  • Online Gowin Semiconductor reference video tutorial: Click here


If you have questions about using the IDE, you can check out some official documents to familiarize yourself with the relevant content



】All the above documents have been packaged into the download station click me to jump, if needed, you can click the compressed package to download them all.

 

】Example Summary

Please note that 25K requires the use of V1.9.9Beta-4 or newer IDE version.

http://www.gowinsemi.com.cn/faq.aspx


】Public Examples

Github link: https://github.com/sipeed/TangPrimer-25K-example


Related Questions】

How to Download to External FLASH

Set the following options:


】No Response or Incorrect Pin Phenomenon After Burning

First, make sure the correct model is selected, each parameter in the figure below is required to be consistent


Then check whether your code and the corresponding simulation waveform meet the requirements


For more questions and solutions, go to Related Questions to view


【Support】

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



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