In the C language, <span>const</span> and <span>static</span> are two very commonly used keywords that relate to the modifiability, lifecycle, and scope of variables. By combining variable declarations, pointer usage, and function design, we can flexibly control the access permissions, visibility, and lifetime of variables. 1. const (Constant Modifier) <span>const</span> is used to declare read-only variables, … Read more
Storage Classes in C: auto, extern, and static In C, the storage class of a variable determines its lifecycle, visibility, and initial value. In this article, we will delve into three main storage classes: <span>auto</span>, <span>extern</span>, and <span>static</span>. We will illustrate the characteristics and usage of each storage class through code examples. 1. <span>auto</span> Definition … Read more
WeChat Official Account:Electromagnetic Compatibility Home Issue 2778 1.Problem Description An industrial display screen experienced blue screen issues and system crashes during ESD (Electrostatic Discharge) testing, with ±6kV contact discharge applied to the network port, USB, and serial port. The system could recover after a power cycle, but the tests failed. This issue has persisted for … Read more