STM32H750 Oscilloscope Expansion Board

This project is a replica of the Hardwood Classroom AFE03 oscilloscope and signal source expansion board, used with the Hardwood Classroom STM32H750 core board. I/O allocation is only applicable to the H750 core board; please refer to the schematic
diagram
 
for specific allocation details
. This project replicates the Hardwood Classroom AFE03 oscilloscope and expansion board. The hardware design and code are available on the LCSC open-source platform:
https://oshwhub.com/damihuang/AFE03.
 
The Hardwood Classroom knowledge base
contains detailed explanations of oscilloscope construction; it's an excellent tutorial and worth studying!
https://www.yuque.com/yingmuketang/01/tza1xu0gk3ps5dac
 
Hardwood Classroom H750 Core Board
https://item.taobao.com/item.htm?spm=a21n57.1.0.0.9895523cQ7Tr1r&id=668498418826&ns=1&abbucket=10#detail
 
Test Video
https://b23.tv/qpP9riL
 
Functional Test
Oscilloscope Input Two Channels

±10V Dual Channel 2M Sampling Rate or Above 20K Bandwidth Sine Wave Peak-to-Peak Measurement Error No Greater Than 5% Smooth Range
Switching Trigger No Obvious Touch Frequency Measurement Error No Greater Than 5% Oscilloscope Single Output Channel Output ±4V Peak-to-Peak, 20K Bandwidth Square Wave, Triangle Wave, Sine Wave Sine Wave and Square Wave Peak-to-Peak Error No Greater Than 15% Finally, thank you JLCPCB and Hardwood Classroom! This gave me the opportunity to get involved in the oscilloscope project, allowing me to learn and practice more effectively, and also giving me the pocket instrument I've always dreamed of!