Design of digital oscilloscope based on STM32 (complete design information)

Digital oscilloscope function: Waveform generator: Use STM32 DA to realize sine, triangle, square and white noise output. The amplitude of any waveform can be adjusted arbitrarily in 0-3.3V, the frequency can be adjusted arbitrarily in a certain range, and the duty cycle of the square wave can be adjusted. The adjustment options can be set through the touch screen. SD card storage: SD card waveform storage output, can take a screenshot of the current screen and store it on the SD card in JPG format. Can store waveform data within 1S, can be called and viewed at any time. Data transmission: Use C# to write the upper computer and control the lower computer through the serial port. (1) Realize STOP/RUN function (2) Output waveform voltage and time parameters (3) Control screenshot (4) Control waveform generator (5) Control FFT (6) Storage and display of waveform Graphic interface: UCGUI Horizontal scan speed: 250 ns*, 500ns, 1μs, 5 μs, 10μs, 50μs, 500 μs, 5ms, 50ms Vertical voltage sensitivity: 10mV/div, 20mV/div, 50mV/div, 0.1V/div, 0,2V/div, 0.5V/div, 1V/div,2V/div, 5V/div Various parameters of the measured signal are displayed on the screen, including frequency, peak-to-peak voltage, etc.