The premise is that the hardware circuit is basically designed according to the official recommendations, and the software is also ported from the official demo. 1. First, check if the crystal oscillator is oscillating. The oscilloscope should show a DC bias of about 1.5V and an AC amplitude of approximately 0.5V with a 25MHz oscillation … Read more
Click the blue text Follow us 1. Overview Ethernet refers to the baseband local area network specification created by Xerox and jointly developed by Xerox, Intel, and DEC. Ethernet uses CSMA/CD (Carrier Sense Multiple Access with Collision Detection) technology and operates at a rate of 10M/S over various types of cables. Ethernet is similar to … Read more
Introduction The proper operation of the network card is crucial for the system’s network functionality. This article delves into the issues of network card failure due to insufficient reset time, interpreting the reset requirements of different network card chips, circuit design, and key points for driver compatibility, providing engineers with reference for network card design … Read more