HUB75 - 24-bit color driver for 32x64 Coreman RGB LED Module P2.5 mm selled at AliExpress

http://www.aliexpress.com/item/Factory-Direct-Wholesale-P2-5-indoor-led-display-module-P2-5-160-80-64-32-dots/1000001269484.html

for STM32F4 microcontroller

hub75.h - header

hub75.c - source of driver