Initial commit
Merge branch 'master' of https://github.com/TheKK/myFreeRTOS
Demo tweak
usart test
New usart
Merge commit 'd6e7cad' into usart
上下文交换
EXTI test
First try exti, falied...
Merge pull request #1 from TheKK/exti

Exti
Almost there...
implement Queuewq
Queue + EXTI
Merge pull request #2 from shin21/exti

Exti
exti test
IPC test
edit sysTick from config_TICK_RATE_HZ
can run by using queue
Modified Makefile and rename folder name
Remove useless files