基于stm32的射频读卡器设计

用stm32加MFRC522完成读写卡的程序，SPI2模式

BS SPI实验
CORE
ExtDll.iex
FWLIB
HARDWARE
OBJ
SPI.axf
SPI.build_log.htm
SPI.hex
SPI.htm
SPI.lnp
SPI.sct
SPI_SPI.dep
SYSTEM
USER
delay.crf
delay.d
delay.o
keilkilll.bat
key.crf
key.d
key.o
lcd.crf
lcd.d
lcd.o
led.crf
led.d
led.o
main.crf
main.d
main.o
mfrc522.crf
mfrc522.d
mfrc522.o
misc.crf
misc.d
misc.o
readme.txt
spi.crf
spi.d
spi.o
startup_stm32f40_41xxx.d
startup_stm32f40_41xxx.o
stm32f4xx_fsmc.crf
stm32f4xx_fsmc.d
stm32f4xx_fsmc.o
stm32f4xx_gpio.crf
stm32f4xx_gpio.d
stm32f4xx_gpio.o
stm32f4xx_it.crf
stm32f4xx_it.d
stm32f4xx_it.o
stm32f4xx_rcc.crf
stm32f4xx_rcc.d
stm32f4xx_rcc.o
stm32f4xx_spi.crf
stm32f4xx_spi.d
stm32f4xx_spi.o
stm32f4xx_syscfg.crf
stm32f4xx_syscfg.d
stm32f4xx_syscfg.o
stm32f4xx_usart.crf
stm32f4xx_usart.d
stm32f4xx_usart.o
sys.crf
sys.d
sys.o
system_stm32f4xx.crf
system_stm32f4xx.d
system_stm32f4xx.o
usart.crf
usart.d
usart.o