Note: 1. This speech recognition library can recognize 11 short phrases, and the content to be recognized can be changed at any time. 2. Since the library is written in pure C and has an IAR version, it should also be possible to port it to chips from other manufacturers. 3. The software includes an … Read more
Holtek has launched a new Arm® Cortex®-M4 32-bit USB OTG microcontroller HT32F49041, designed for high-performance computing and USB application scenarios. It features an efficient Cortex®-M4 core, providing a single-precision floating-point unit (FPU) that supports all Arm® single-precision data processing instructions and data types. This core implements a complete set of DSP instructions and a memory … Read more
1. Memory Mapping In the memory mapping diagram of the STM32F429 chip, it can be seen that the peripherals are allocated 512M of space; however, the actual peripherals do not utilize the entire 512M of memory. When operating peripherals, it is sufficient to manipulate their corresponding memory addresses. For more detailed peripheral memory addresses, refer … Read more
This article is selected from the Jishu column “Arm Selection” by author lvy, authorized to be transferred from the WeChat public account Arm Selection. This article will take you deeper into the understanding of the MCU boot process. I previously wrote an article analyzing the complete boot process of STM32, but I felt that some … Read more
● Interrupts Interrupts play a very important role in microcontrollers. The code executes from top to bottom by default, and when it encounters conditions or other statements, it jumps to specified locations. During the execution of code in a microcontroller, unexpected situations may arise that need to be handled, which will interrupt the current code. … Read more
For those familiar with computers, the BIOS (that blue interface) may not be too strange, as it is the startup code for the computer. Without BIOS, a computer is destined to be a brick! The BIOS mainly does some preparatory work before booting, such as setting the system time and boot order… but I digress. … Read more
In the field of embedded MCUs, CoreMark is a well-known method for measuring MCU performance, and the CoreMark score often becomes an important indicator for evaluating the performance of a certain MCU. Recently, STMicroelectronics launched the new generation STM32H7, which set a record for Cortex-M general-purpose MCUs with a score of 3224 in CoreMark, becoming … Read more
Computer Science Assembly Optimization of an AES-128-CTR Algorithm Based on a Cortex-M4 Core Dongxuan YANG1, Ganggang ZHANG2, Xinliang LIU1 1. School of E-commerce and Logistics, Beijing Technology and Business University; 2. Digital Campus, Capital Normal University Abstract: With the rapid development of the Internet of Things, embedded hardware products face great challenges in data security. … Read more
[Field] Core Electronic Components [Central Enterprise Name] China Electronics Corporation [Technical Product Introduction] The Huada Semiconductor Microcontroller MCU features high reliability, making it particularly suitable for applications in harsh working environments. It is a core component for small system control in industrial, communication, transportation, and energy sectors. This technical product has been widely used in … Read more
The GD32® series, leveraging GigaDevice’s advanced gFlash® technology and mass production experience, has developed a new form of MCU, providing customers with outstanding functionality and quality. The GD32F4 series is an enhanced high-performance product line within the GD32 MCU family. Based on the ARM® Cortex®-M4 core, this 32-bit general-purpose microcontroller offers high performance, low power … Read more