File list (Check if you may need any files):
Print\CORE
.....\....\core_cm3.c
.....\....\core_cm3.h
.....\....\startup_stm32f10x_hd.s
.....\....\startup_stm32f10x_md.s
.....\HARDWARE
.....\........\BEEP
.....\........\....\beep.c
.....\........\....\beep.h
.....\........\EAN
.....\........\...\EAN.c
.....\........\...\EAN.h
.....\........\IIC
.....\........\...\24C04B.c
.....\........\...\24C04B.h
.....\........\...\bmp.h
.....\........\...\oled.c
.....\........\...\oled.h
.....\........\...\oledfont.h
.....\........\KEY
.....\........\...\KEY.c
.....\........\...\KEY.h
.....\........\LED
.....\........\...\LED.c
.....\........\...\LED.h
.....\........\POINTS
.....\........\......\Point.c
.....\........\......\point.h
.....\........\print
.....\........\.....\print.c
.....\........\.....\print.h
.....\........\qrcode
.....\........\......\bitstream.c
.....\........\......\bitstream.h
.....\........\......\mask.c
.....\........\......\mask.h
.....\........\......\mmask.c
.....\........\......\mmask.h
.....\........\......\mqrspec.c
.....\........\......\mqrspec.h
.....\........\......\qrenc.c
.....\........\......\qrencode.c
.....\........\......\qrencode.h
.....\........\......\qrencode_inner.h
.....\........\......\qrinput.c
.....\........\......\qrinput.h
.....\........\......\qrspec.c
.....\........\......\qrspec.h
.....\........\......\rscode.c
.....\........\......\rscode.h
.....\........\......\split.c
.....\........\......\split.h
.....\........\ShowQRcode
.....\........\..........\ShowQRcode.c
.....\........\..........\ShowQRcode.h
.....\keilkilll.bat
.....\OBJ
.....\...\24c04b.crf
.....\...\24c04b.d
.....\...\24c04b.o
.....\...\beep.crf
.....\...\beep.d
.....\...\beep.o
.....\...\bitstream.crf
.....\...\bitstream.d
.....\...\bitstream.o
.....\...\core_cm3.crf
.....\...\core_cm3.d
.....\...\core_cm3.o
.....\...\delay.crf
.....\...\delay.d
.....\...\delay.o
.....\...\ean.crf
.....\...\ean.d
.....\...\ean.o
.....\...\ExtDll.iex
.....\...\key.crf
.....\...\key.d
.....\...\key.o
.....\...\led.crf
.....\...\led.d
.....\...\led.o
.....\...\main.crf
.....\...\main.d
.....\...\main.o
.....\...\mask.crf
.....\...\mask.d
.....\...\mask.o
.....\...\misc.crf
.....\...\misc.d
.....\...\misc.o
.....\...\mmask.crf
.....\...\mmask.d
.....\...\mmask.o
.....\...\mqrspec.crf
.....\...\mqrspec.d
.....\...\mqrspec.o
.....\...\oled.crf
.....\...\oled.d
.....\...\oled.o