1. Introduction In previous articles, we introduced some basic principles of SDRAM. This article will introduce the SDRAM controller under the FMC of STM32F429. 2. Introduction to the SDRAM Controller of STM32F429 According to the general module driver initialization process, it mainly involves the clock path: clock source to clock division configuration, enabling clocks for … Read more
In 2019, I purchased the “Xiaomi Mijia Smart Home Kit,” which I truly started using in early 2020. At one point, I noticed on the app: “Door Magnet Sensor” — “Battery” — “Battery Low”; so I quickly bought a battery to replace it, but the app still indicated low battery; however, in the “Device Consumables” … Read more
Ifirst saw the Showfeel A1 Bluetooth speaker from Showfeel a few years ago at the audio exhibition in the Grand Hotel. Two things attracted me: one was the elegant arrangement of the room, and the other was the impressive low-frequency performance of the small Bluetooth speaker, which sounded as if it had a small subwoofer. … Read more
Written by｜Bomb Dance Everything started from an occasional thought in 2004 Earlier, I came across an interview with Bruno Putzeys, one of the founders of Mola Mola, in SoundStage! Ultra from 2014, which detailed the Mola Mola DAC that had not yet been officially launched at that time. Bruno mentioned that everything should start from … Read more
Introduction to the SPI Protocol SPI is the Serial Peripheral Interface. It is a synchronous serial interface technology introduced by Motorola, characterized by high speed and full-duplex synchronous communication, capable of operating at frequencies exceeding hundreds of MHz. Typically, SPI requires four lines (for duplex communication), but it can also operate with three lines (for … Read more
The “ARM-200F NEOARM” is equipped with a proprietary technology developed Cold Field Emission Gun (Cold-FEG) and a new Aberration Corrector (ASCOR), which can correct higher-order aberrations to achieve atomic resolution observation. Additionally, JEOL has developed its own aberration correction algorithm and installed a system that automatically performs high-speed and accurate aberration correction. This provides high-throughput … Read more
Xiaomi’s latest 3nm flagship chip, the Xuanjie O1, has recently been embroiled in a “self-development” controversy. The Arm official website initially referred to it as a “custom chip,” raising questions among netizens about whether Xiaomi relies on Arm’s existing solutions. Xiaomi quickly refuted this, emphasizing that the chip is entirely self-developed, prompting Arm to revise … Read more
In today’s rapidly advancing technology landscape, the wave of industrial intelligence is surging. The IDO – SOM2708 – S1 core board (based on Allwinner T527) launched by Touch Intelligence shines like a brilliant new star, bringing new solutions to the industrial sector.8-core A55+2 Tops computing powerNPU+supports open-source HarmonyOS+industrial gradeCore board: 8-core + 2 Tops + … Read more
“If you could swallow a surgeon, then surgery would become interesting and simple.” — Richard Feynman This was the fantasy of Nobel Prize-winning physicist Feynman 60 years ago. Now, the “surgeon” inside the body has become a reality — microrobots. Remote-controlled microrobots with active steering capabilities have broad prospects in medical applications. Recently, researchers from … Read more
On May 22, 2025, Xiaomi’s 15th anniversary strategic new product launch conference introduced several products, including the long-awaited first SUV, the Xiaomi Yuqi 7, the first self-developed chip, the Xuanjie O1, the Xiaomi 15S Pro equipped with the Xuanjie O1, the Xiaomi Pad 7 Ultra, the Xiaomi Watch S4, and an all-around lightweight flagship designed … Read more