Tang primer 25k sample

CharlesChen · April 17, 2026, 1:38am

can you send an example code to blink the leds.

Please check this

docs/hardware/en/tang/tang-primer-25k/primer-25k.md

main

# Tang Primer 25K

## Overview

Tang Primer 25K is a minuscule core board (23x18mm) designed based on [GW5A-LV25MG121C1/l0](http://www.gowinsemi.com.cn/prod_view.aspx?TypeId=74&FId=t3:10:3&Id=188), 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.

<div> <img src="./assets/25k_45.jpg" width=45%> <img src="./assets/25k_dock_45.jpg" width=45%> </div>

Purchase link: [ALIEXPRESS](https://www.aliexpress.us/item/3256806038278266.html?gatewayAdapt=glo2usa4itemAdapt)

## Core Board Overview

<div> <img src="./assets/25k_top.jpg" width=45%> <img src="./assets/25k_bot.jpg" width=45%> </div>

## Basic Parameters

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