Correct the path of QEMU_STM32
Add serial input function, still not working
issue:
Program will be stuck on calling xQueueReceive in recv_byte
USART2_IRQHandler will not be call when user input
Enable rx, now USART2_IRQHandler will be called when inputing
Delete read_romfs_task
Add -std=c99 -pedantic for warning check
Fix some warning after enabling warning check.
Add my version of c library
Correct wrong prototype of send_byte
Rearrange clib.o in Makefile
Add dependency of clib.c and fio.c to Makefile
Implement fio_printf, itoa, fix the bug of strlen
Rewrite fio_read with more elegant style
Implement a shell(no command available yet)
Refine fio_read, now support BACKSPACE.
Add strcmp function.
Add shell.h shell.c to make list
Shell commands will be put in shell.c
Design a more readable shell handling mechanism.
Add OPENFAIL MACRO
Complete man command.