Use STM32 development board four buttons S1, S2, S3, S4 achieved a standard USB interface joystick function.

readme.txt
STM32-FD-USB.BAT
STM32-FD-USB.opt.bak
STM32-FD-USB.Uv2
STM32-FD-USB.uvopt
STM32-FD-USB.uvproj
STM32-FD-USB_Opt.Bak
STM32-FD-USB_STM32-FD-USB.dep
STM32-FD-USB_Uv2.Bak
STM32-FD-USB_uvopt.bak
STM32-FD-USB_uvproj.bak
FWlib\inc\misc.h
.....\...\stm32f10x_adc.h
.....\...\stm32f10x_bkp.h
.....\...\stm32f10x_can.h
.....\...\stm32f10x_conf.h
.....\...\stm32f10x_crc.h
.....\...\stm32f10x_dac.h
.....\...\stm32f10x_dbgmcu.h
.....\...\stm32f10x_dma.h
.....\...\stm32f10x_exti.h
.....\...\stm32f10x_flash.h
.....\...\stm32f10x_fsmc.h
.....\...\stm32f10x_gpio.h
.....\...\stm32f10x_i2c.h
.....\...\stm32f10x_iwdg.h
.....\...\stm32f10x_pwr.h
.....\...\stm32f10x_rcc.h
.....\...\stm32f10x_rtc.h
.....\...\stm32f10x_sdio.h
.....\...\stm32f10x_spi.h
.....\...\stm32f10x_tim.h
.....\...\stm32f10x_usart.h
.....\...\stm32f10x_wwdg.h
.....\SRC\misc.c
.....\...\stm32f10x_adc.c
.....\...\stm32f10x_bkp.c
.....\...\stm32f10x_can.c
.....\...\stm32f10x_crc.c
.....\...\stm32f10x_dac.c
.....\...\stm32f10x_dbgmcu.c
.....\...\stm32f10x_dma.c
.....\...\stm32f10x_exti.c
.....\...\stm32f10x_flash.c
.....\...\stm32f10x_fsmc.c
.....\...\stm32f10x_gpio.c
.....\...\stm32f10x_i2c.c
.....\...\stm32f10x_iwdg.c
.....\...\stm32f10x_pwr.c
.....\...\stm32f10x_rcc.c
.....\...\stm32f10x_rtc.c
.....\...\stm32f10x_sdio.c
.....\...\stm32f10x_spi.c
.....\...\stm32f10x_tim.c
.....\...\stm32f10x_usart.c
.....\...\stm32f10x_wwdg.c
.....\...\system_stm32f10x.c
List\core_cm3.i
....\hw_config.i
....\main.i
....\misc.i
....\startup_stm32f10x_hd.lst
....\STM32-FD-USB.map
....\STM32F10x.lst
....\stm32f10x_exti.i
....\stm32f10x_flash.i
....\stm32f10x_gpio.i
....\stm32f10x_it.i
....\stm32f10x_rcc.i
....\stm32f10x_usart.i
....\system_stm32f10x.i
....\usb_core.i
....\usb_desc.i
....\usb_init.i
....\usb_int.i
....\usb_istr.i
....\usb_mem.i
....\usb_prop.i
....\usb_pwr.i
....\usb_regs.i
....\USB_TEST.map
Obj\core_cm3.crf
...\core_cm3.d
...\core_cm3.o
...\core_cm3.txt
...\core_cm3.__i
...\ExtDll.iex
...\hw_config.crf
...\hw_config.d
...\hw_config.o
...\hw_config.txt
...\hw_config.__i
...\main.crf
...\main.d
...\main.o
...\main.txt
...\main.__i
...\misc.crf
...\misc.d
...\misc.o

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