f9micro/f9-kernel — pull request #86 by benwei (2014-04-19 17:38:02+00:00)
Title: feature: support stm32f4 gpio output function and example app: gpioer

Here is first version of gpio function support , just gpio with output-only api.
An Example of gpioer with user the stm32f407 built-in four leds.
The gpioer app will make the 4 leds blink with 1 second interval.