LM3S系列Timer例程：16位PWM
..........................\Debug
..........................\.....\Exe
..........................\.....\...\Demo.sim
..........................\.....\List
..........................\.....\Obj
..........................\.....\...\Demo.pbd
..........................\.....\...\startup_ewarm.o
..........................\.....\...\systemInit.o
..........................\Demo.dep
..........................\Demo.ewd
..........................\Demo.ewp
..........................\Demo.eww
..........................\main.c
..........................\settings
..........................\........\Demo.cspy.bat
..........................\........\Demo.dbgdt
..........................\........\Demo.dni
..........................\........\Demo.wsdt
..........................\........\Demo_Debug.jlink
..........................\startup_ewarm.c
..........................\systemInit.c
..........................\systemInit.h