1. Introduction This small electronic badge contains many unique components. This AP Memory is a SPI interface SRAM with a capacity of 8MB. Below is a preliminary test of it. 2. Creating the Test Circuit This RAM with SPI interface operates with a current from 2.7V to 3.6V. Its package seems to be universal, similar … Read more
01 【SPI Concept】 SPI (Serial Peripheral Interface) is a synchronous serial port for communication between microcontroller units (MCUs) and peripheral ICs (such as sensors, ADCs, DACs, driver chips, and external storage devices). The communication rate can range from a few thousand bps to hundreds of Mbps or even higher, depending on the specifications and performance … Read more
Click the blue words Follow us 1. Introduction to CAN Background of the CAN Protocol In the 1980s, the number of electronic control units (ECUs) in automobiles gradually increased, and traditional point-to-point electrical communication methods were becoming inadequate. The point-to-point connections between each electronic control unit and other devices made system wiring complex, costly, and … Read more
Software Introduction Proteus 8.15 is a computer-aided design software package for electronic circuits. This package is a circuit simulation system based on PSPICE electronic component models. Proteus is a single application with many service modules that provide different functions (schematic capture, PCB layout, etc.). The wrapper that allows all various tools to communicate with each … Read more
Build a 100MHz Logic Analyzer with Raspberry Pi Pico Transform a Raspberry Pi Pico (or any RP2040 board) into a simple logic analyzer in just 5 minutes. Introduction A logic analyzer is an electronic instrument that captures and displays multiple signals from digital systems or circuits. It can convert captured data into timing diagrams, protocol … Read more
Abstract There are numerous articles introducing the performance of logic analyzers, but few specifically discuss the measurement probes for logic analyzers. It is important to note that the instrument itself is only part of the measurement system; the choice of measurement probes and their manufacturing processes are also crucial. Many times, we use the most … Read more
SPIDriver is an easy-to-use tool for controlling SPI devices, compatible with Windows, Mac, and Linux systems. It features a built-in color screen that can display all SPI communications in real-time, using a standard FTDI USB serial chip to communicate with the PC, eliminating the need for special drivers. The SPIDriver evaluation board includes 3.3 V … Read more
Some battery-powered products, if not designed properly, may exhibit a phenomenon where the battery fails to charge after being over-discharged. The reason is generally that these products lack a dynamic power path management feature in their charging design. When the battery is depleted and charging begins, the product typically activates certain functions to display charging … Read more
Introduction to EMMC Circuits EMMC (Embedded Multi Media Card) is a standard specification established by the MMC Association, primarily targeting embedded storage for products such as mobile phones and tablets. EMMC integrates a controller within the package, providing a standard interface and managing flash memory.The principle circuit’s 8-bit data signals are shown in Figure 8-38, … Read more
I declare that I am not a repair master, just an ordinary user! First, let me wish all the masters a Happy New Year! Now, back to the point. I have a Xiaomi 3 with a 64GB memory whose screen is broken, and it seems a waste to throw it away. Since I often browse … Read more