MCUs are core components in automotive electronic control systems, and storage units are one of the most important parts. In the design of automotive-grade MCUs, the functional safety design of storage units and controllers is crucial, directly affecting the reliability and safety of automotive electronic control systems. This article discusses the development of automotive-grade MCUs … Read more
Introduction Car remote keys use practical button batteries, which can generally operate for a long time, so their power consumption is very low. How do they achieve low power consumption? Let’s disassemble a Buick Excelle to take a look. Disassembly Use a flathead screwdriver to pry open the battery cover. Unscrew two screws. Then find … Read more
1. Signal Crosstalk Crosstalk refers to the coupling phenomenon between two signal lines. Due to the close spatial distance, there will be unwanted inductive and capacitive coupling between the signal lines, leading to mutual interference. Capacitive coupling can cause coupling currents, while inductive coupling can cause coupling voltages. This is a tricky issue in circuit … Read more
Recently, I was working on a motor drive application using the BGI MCU, and during debugging, I was plagued by a randomly occurring HARD FAULT. The issue was strange; the time it took to enter HARD FAULT was unpredictable. It could be triggered just a few seconds after connecting to USB, or it could take … Read more
Qinheng, based on its self-developed Qingke RISC-V microprocessor and professional connection technologies like USB, Bluetooth, and Ethernet, has created a product matrix that combines a full-stack MCU with multi-dimensional and multi-layered interface chips without kernel and PHY technology licensing fees and commissions. In addition to a rich lineup of USB interface chips, the Ethernet product … Read more
In recent years, with the gradual maturity of processes and IP, 32-bit MCUs have grown rapidly, to the point where 16-bit MCUs are almost skipped. Nowadays, when talking about embedded MCUs, it is either 8-bit or 32-bit, with very few 16-bit MCU product models available. So, what about the situation with 8-bit MCUs? Many embedded … Read more
Forum Weekly July 30, 2022 Highlights of this week’s forum: 1. Video tutorial on MQTT protocol communication using MCU + WiFi module and Inspur Cloud IoT platform 2. Today’s repair experience… 3. How to filter weak signals 4. Issues with PLC scanning order and scanning cycle 5. Parameters to change when adding braking resistors to … Read more
✦ The latest version of IAR Embedded Workbench for Arm fully supports Xinch Technology’s 9 Series SoC and E3 MCU chips, helping developers in China’s automotive industry create powerful embedded development solutions. On June 17, 2022, IAR Systems, a global leader in embedded development software tools and services, announced in Shanghai that its latest release, … Read more
An error occurred: FATAL ERROR L210: I/O ERROR ON INPUT FILE: EXCEPTION 0021H: PATH OR FILE NOT FOUND. Later I found out that it was due to insufficient MCU memory. After some investigation, I discovered that my KEIL was not cracked, which prevented compilation of programs larger than 2K. After cracking KEIL 2 again, loading … Read more
Are you feeling frustrated when creating projects in Keil because it doesn’t have STC models? Don’t worry… come, follow me to do it. 1. Open the download software in this file (stc-isp-15xx-v6.18-Beta2). 2. Click ① to find the associated settings for Keil ②. 3. Click on the Keil settings as shown in the above image, … Read more