The Genius Behind Renesas RX Series: Designing High-Performance 32-bit CISC Microcontrollers Frog: Sister Liu, I went for an interview today and was asked about the Renesas RX series microcontrollers, but I couldn’t answer. Can you tell me about the characteristics and advantages of this series? Sister Liu: Of course, Frog. The Renesas RX series is … Read more
The acceleration of DSP in Cortex-M core microcontrollers is entirely achieved through these instructions, and I will introduce how the DSP source code implements this acceleration. Tencent Video: Bilibili Video: Instruction Set: References:1. DSP Tutorial https://www.armbbs.cn/forum.php?mod=viewthread&tid=94547 2. Authoritative Guide https://www.armbbs.cn/forum.php?mod=viewthread&tid=96973
Welcome FPGA engineers to join the official WeChat technical group. Fanout refers to the number of lower-level modules directly called by a module. If this value is too large, it directly manifests as a large net delay in FPGA, which is not conducive to timing convergence. Therefore, when writing code, one should try to avoid … Read more
As mobile applications become increasingly prevalent and devices become lighter and thinner, issues such as CPU lag, device overheating, and battery life are becoming more common. Common methods like frequency limiting and frame dropping can degrade user experience and are not fundamental solutions. We urgently need a low-power, high-performance secret weapon to address these issues. … Read more
The ARM architecture can be traced back to 1985, but it has not remained static. Instead, it has undergone massive development since the early ARM cores, with each step adding features and functionalities: ARMv4 and Earlier Versions These early processors only used the ARM 32-bit instruction set. ARMv4T The ARMv4T architecture added the Thumb 16-bit … Read more
Note: 1. The DSP library in the new CMSIS V5.6 is much more user-friendly than previous versions. 2. This post shares a method for adding source code. Previously, we used libraries, which made it inconvenient to view the source code. 3. You can also refer to the first version of the DSP tutorial, which is … Read more
Walking on the waves, occasionally looking back, though there are no marks, I can still see the distant coast. It has been eight years since I graduated in 2015. I have worked in hardware for eight years, and my love for it has deepened. I still remember a friend I met in the student union … Read more
Technology is rapidly developing today. In this article, we will delve into the principles and structures of Bluetooth modules and their advantages compared to other products currently available in China, hoping to provide some help to everyone. As a short-range wireless communication technology that replaces data cables, Bluetooth supports point-to-point and point-to-multipoint communication, wirelessly connecting … Read more
Follow and star our official account to access exciting content Source: Technology Makes Dreams Greater Author: Li Xiaoyao Recently, I have been using Nordic’s 52832 development board, which also belongs to the ARM Cortex M4 architecture. I won’t go into details about the chip; the main difference between M4 and M0/M3 is that it has … Read more
Some signal features are difficult to determine in the time domain, but can be easily analyzed in the frequency domain. For example, the noise characteristics of a DC power supply require the use of Fourier analysis to convert time-domain signals into frequency-domain signals. The ZDS2022 oscilloscope features up to 4Mpts of FFT analysis sample points, … Read more