After setting up the development environment, let's test the GPIO output of the development board first.1. Hardware CircuitUse the LED light on the development board to test the GPIO output.Hardware C...
Introduction: We know that when the characteristic impedance of the line is discontinuous, the signal will be reflected through the discontinuous point, causing the signal to overshoot and ring. When...
I guess many people have almost forgotten about Ethernet half-duplex. Believe it or not, we have recently started using Ethernet half-duplex. In the final analysis, it is to save costs. Due to the sim...
[size=5]DAO layer: The DAO layer is mainly responsible for the work of the data persistence layer. Some tasks responsible for communicating with the database are encapsulated here. The design of the D...