How to use the STM8103 key external interrupt, when you press the button when the buzzer issued a fixed frequency of sound

BUTTON_BEEP\Debug\Exe\reg_led.out
...........\.....\main.ls
...........\.....\main.o
...........\.....\Obj\main.o
...........\.....\...\reg_led.pbd
...........\.....\...\stm8s_it.o
...........\.....\reg_led.elf
...........\.....\reg_led.lkf
...........\.....\reg_led.map
...........\.....\reg_led.s19
...........\.....\reg_led.sm8
...........\.....\stm8s_it.ls
...........\.....\stm8s_it.o
...........\.....\stm8_interrupt_vector.ls
...........\.....\stm8_interrupt_vector.o
...........\main.c
...........\reg_led.dep
...........\reg_led.ewd
...........\reg_led.ewp
...........\reg_led.eww
...........\reg_led.pdb
...........\Release\reg_led.lkf
...........\settings\reg_led.cspy.bat
...........\........\reg_led.dbgdt
...........\........\reg_led.dni
...........\........\reg_led.wsdt
...........\stm8s.h
...........\stm8s_it.c
...........\stm8s_it.h
...........\stm8s_type.h
...........\type.h
...........\Debug\Exe
...........\.....\List
...........\.....\Obj
...........\Debug
...........\Release
...........\settings
BUTTON_BEEP

• We are an exchange download platform that only provides communication channels. The downloaded content comes from the internet. Except for download issues, please Google on your own.
• The downloaded content is provided for members to upload. If it unintentionally infringes on your copyright, please contact us.
• Please use Winrar for decompression tools
• If download fail, Try it againg or Feedback to us.
• If downloaded content did not match the introduction, Feedback to us，Confirm and will be refund.
• Before downloading, you can inquire through the uploaded person information

Nothing．