应用

C语言中的输入验证，从格式化字符串到整数溢出的处理

C语言因其高效性和底层控制能力被广泛应用于系统编程，但其缺乏内置的边界检查和类型安全机制，使得输入验证成为保障程序安全的核心环节。从格式化字符串漏洞到整数溢出攻击，未经严格验证的输入可能导致缓冲区溢出、权限提升甚至远程代码执行。本文将从格式化字符串漏洞、整数溢出风险、以及输入验证的通用策略三个层面，深入探讨C语言中输入验证的关键技术与实践。

C语言整数溢出的攻击面，符号转换漏洞unsigned绕过安全检查的案例

C语言因直接操作内存和高效性被广泛应用于系统级开发，但其缺乏边界检查的机制导致整数溢出成为安全漏洞的高发区。从符号转换漏洞到无符号整数(unsigned)绕过安全检查，攻击者通过精心构造的输入触发溢出，进而实现缓冲区溢出、权限提升甚至远程代码执行。本文结合典型漏洞案例，深入剖析整数溢出的攻击原理与防御策略。

Omdia：2030年全球6G用户数将达2.89亿，RAN投资规模达40亿美元

6 月 5 日，市场研究机构 Omdia 发布最新报告指出，在人工智能技术的深度赋能下，全球 6G 网络商业化进程显著提速，预计 2027 年至 2030 年将成为 6G 技术的导入期，并于 2037 年起成为通信领域的主导技术。

报告：2029年美国AI搜索广告支出将达260亿美元，占比13.6%

据路透社援引研究公司Emarketer的数据报道，美国AI驱动的搜索广告支出预计到2029年将接近260亿美元，占总搜索支出的比达到13.6%。

三防漆7大死角终结者！PCBA防水新工艺如何实现360°零盲区防护

PCB层叠结构设计的先决条件

在PCB打样过程中，层叠结构的设计是至关重要的环节。它不仅关系到PCB的性能和稳定性，还直接影响到生产成本和制造周期。本文将从PCB的两个重要组成部分Core和Prepreg（半固态片，简称PP）出发，深入探讨PCB多层板的层叠结构设计的先决条件。

意法半导体STSPIN智能执行器参考设计结合了电机控制、传感和边缘AI

The EVLSPIN32G4-ACT edge AI motor drive reference design simplifies the creation of smart actuators. This design is based on the STSPIN32G4, a 3-phase motor driver for advanced motor control systems. It is designed to work with ST's STWIN.box (STEVAL-STWINBX1), a wireless industrial sensor node, to fast-track the development of systems that merge precise motor control with real-time environmental data analysis and IoT connectivity.

意法半导体外形小巧的750W电机驱动参考板，面向家庭和工业设备应用

The EVLDRIVE101-HPD (High Power Density) motor-drive reference design packs a 3-phase gate driver, STM32G0 microcontroller, and 750W power stage on a circular PCB just 50mm in diameter. The board features extremely low power consumption in sleep mode, below 1uA, and its tiny outline can fit directly in equipment like hairdryers, handheld vacuums, power tools, and fans. It also fits easily into drones, robots, and drives for industrial equipment such as pumps and process-automation systems.

意法半导体用于工业应用和家用电器的新型STSPIN32G0系列电机驱动器

ST’s STSPIN32 drivers combine a general-purpose STM32 microcontroller (MCU) with a feature-rich three-phase gate driver to simplify design, save PCB area and accelerate time to market. The eight new STSPIN32G0 devices contain gate drivers rated 45V, 250V and 600V, targeting applications from battery-operated appliances and power tools to industrial automation, robots, HVAC systems and line-powered home appliances.

意法半导体推出低压大功率电机应用交钥匙参考设计方案

The EVLSERVO1 servo driver reference design from STMicroelectronics offers a highly compact solution specifically engineered for high-power motor-control applications, providing designers with a turnkey platform to explore, develop, and prototype without compromises.

意法半导体高压功率级，配备紧凑型评估板，适用于更小巧、更坚固的电机驱动器

Accelerating development of compact and reliable fans and pumps built with energy-efficient motors, STMicroelectronics has introduced the PWD5T60 three-phase driver with a ready-to-use evaluation board that supports flexible control strategies.

意法半导体IO-Link执行器评估板为工业监测和电器提供交钥匙参考设计

The EVLIOL4LSV1 board leverages ST’s L6364Q dual-channel IO-Link transceiver to handle communications and the IPS4260L intelligent low-side power switch for driving the indicator lights. The board can be directly connected to signaling systems such as smart tower lights used in factory automation, funnel material alarms for quantity-remaining or urgency-level awareness, and other system warnings. It also provides a fast way to test the IPS4260L and L6364Q ICs and has a 4-pin M12 connector for an IO-LINK master and a 5-pin SWD connector for programming.

意法半导体的智能功率开关具有紧凑、高效、稳健的优势

STMicroelectronics’ IPS4140HQ and IPS4140HQ-1 are richly featured four-channel intelligent power switches, combining a compact 8 mm x 6 mm footprint, 80mΩ RDS(on) (max.) per channel, and 10.5V-36V operating range with extensive diagnostic and protection features.

意法半导体低偏移、零漂移运算放大器提供宽增益带宽，实现高精度传感

The TSZ151 op amps have very low offset voltage with minimal temperature drift, offering high accuracy and stability to circuits for sensor interfacing, signal conditioning, and current measurement.

意法半导体为其新款微处理器推出高度集成的电源管理IC

The STPMIC25 power-management IC for STM32MP2 microprocessors is now available, with 16 channels to supply all the MPU power rails as well as system peripherals in one convenient package. Completing the hardware design requires only a small number of external components to provide filtering and stabilization and the STEVAL-PMIC25V1 evaluation board is available now to start development immediately.