【Problem】Given 4 billion unique unsigned int integers that are not sorted. Given a number, how can we quickly determine if this number exists among those 4 billion numbers? 1 billion is 9 zeros, so 4 billion is 4000000000. Our instinctive thought for a solution is to use a for loop to find the equal number, … Read more
Embedded Development in C: I2C Communication Protocol Introduction I2C (Inter-Integrated Circuit) is a widely used serial communication protocol, commonly utilized for communication between microcontrollers and various peripherals. It was developed by Philips in the early 1980s, primarily for short-distance, low-speed data transmission. I2C offers advantages such as simplicity, flexibility, and multi-master support, making it well-suited … Read more
1. Introduction Recently, various products in our department have encountered issues caused by memory leaks, specifically manifested as board resets after continuous operation for several days due to memory exhaustion. On one hand, memory leak issues are considered low-level errors, and their oversight in production can have severe consequences; on the other hand, since memory … Read more
Source: Internet 1. A pipeline can achieve maximum efficiency only when it is filled with instructions, executing one instruction per clock cycle (referring only to single-cycle instructions). If a jump occurs in the program, the pipeline will be cleared, requiring several clock cycles to refill. Therefore, minimizing the use of jump instructions can enhance program … Read more
Learning programming involves not only knowing that there are errors in the program and how to correct them, but also understanding where the errors are and why the computer produces such erroneous outputs. The behavior of computers is always explainable; one must understand the underlying execution logic rather than simply correcting the program. This is … Read more
Article Word Count: 8000 Content Quality Index:⭐⭐⭐⭐⭐ 01Five Major Memory Areas The memory is divided into five areas: heap, stack, free storage area, global/static storage area, and constant storage area. 1. Stack Area: FIFO refers to the storage area for variables allocated by the compiler when needed and automatically cleared when not needed. The variables … Read more
Click on the above “Baibai Technology” and select “Pin to Public Account” Embedded essentials delivered instantly Question 1: Briefly describe the differences between memcpy and strcpy? Question 2: What are the differences between semaphores and mutexes? Question 3: Briefly describe the process of program compilation? Answer to Question 1: (1) The content copied is different. … Read more
Low-Level Systems Application Development If you want to do application development, then you should learn C, data structures, JAVA, and so on. There is nothing particularly different about embedded application development compared to PC application development. You might say that optimization is necessary in embedded systems, and yes, optimization is required, but an unoptimized program … Read more
1. What is a Character Device? First, we need to understand what a character device is. A character device is, simply put, a device that reads and writes data byte by byte, like keyboards, mice, and serial ports. Unlike block devices (like hard drives), character devices do not support random access; data must be read … Read more
Embedded systems are the core of modern electronic devices, and their security is crucial. These systems often contain sensitive data and critical functions, and if attacked, could lead to data breaches, system failures, or even physical damage. Therefore, security must be fully considered during the embedded design process. This article will delve into the security … Read more