8-teach\8-loader.axf .......\8-loader.bin .......\8-loader.txt .......\command.c .......\command.h .......\command.o .......\demo.bin .......\main.c .......\main.o .......\Makefile .......\printf.c .......\printf.o .......\shell.c .......\shell.h .......\shell.o .......\start.o .......\start.s .......\stdio.c .......\stdio.h .......\stdio.o .......\uart.c .......\uart.h .......\uart.o 8-teach