Sine transformation, press SW3, D2 blinking situation changed once,, 5 triangle wave output, and when the triangle wave reaches its peak, the buzzer alarm sound by pressing SW4, D3 blinking situation changed once,, 5 square wave output and when the direction of arrival commutation, buzzer alarm sound

Sinusoidal waveform\HARDWARE\BEEP\BEEP.c
...................\........\....\BEEP.h
...................\........\EXTI\exti.c
...................\........\....\exti.h
...................\........\KEY\key.c
...................\........\...\key.h
...................\........\LED\led.c
...................\........\...\led.h
...................\........\TLC5615\TLC5615.c
...................\........\.......\TLC5615.h
...................\........\vb.c
...................\keilkilll.bat
...................\SYSTEM\delay\delay.c
...................\......\.....\delay.h
...................\......\sys\sys.c
...................\......\...\sys.h
...................\......\usart\usart.c
...................\......\.....\usart.h
...................\USER\KeyINT.c
...................\....\KeyINT.hex
...................\....\KeyINT.Opt
...................\....\KeyINT.plg
...................\....\KeyINT.Uv2
...................\....\KeyINT_Opt.Bak
...................\....\KeyINT_Target 1.dep
...................\....\STM32F10x.s
...................\实验现象.txt
...................\HARDWARE\BEEP
...................\........\EXTI
...................\........\KEY
...................\........\LED
...................\........\TLC5615
...................\SYSTEM\delay
...................\......\sys
...................\......\usart
...................\HARDWARE
...................\SYSTEM
...................\USER
Sinusoidal waveform

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