When the MCU code crashes, first determine whether the current stack being used is the MSP (Main Stack) or the PSP (Process Stack). After an exception occurs, the stack order of the ARM core is as follows: R0-> R1->R2->R3->R12->LR->PC->XPSR The LR (R14) register is the link register, which stores the exception return value EXC_RETURN where … Read more
Electric two-wheelers, as economical and environmentally friendly short-distance transportation tools, have penetrated personal commuting, food delivery, and shared transportation sectors. Under the implementation of new national standards and the wave of intelligence, their core control systems must balance efficient power output, safety protection, and range optimization. In traditional solutions, the controller, as the “brain of … Read more
The automotive MCU series from New唐 Technology, with its exceptional reliability, rich feature set, and automotive-grade certification, has become the ideal choice for in-vehicle electronic applications. The M0A23, NUC131U, M2A23, and M481U series cover a full range of needs from basic control to high-performance processing, providing comprehensive support for automotive electronic systems. NEWS M0A23 Series: … Read more
“In today’s world where electronic products are deeply integrated into our lives, low power design is key to extending device battery life and enhancing user experience. As the core control component, the low power modes of MCUs are particularly important. Mainstream MCUs such as the 51 series, STM32, and ESP32 all have adapted modes. Below, … Read more
Recently, a group of friends in the chat asked a question about whether the watchdog can work in low power mode: This sparked discussions among various experts: All MCUs have a watchdog function, which is used to monitor and resolve system failures caused by software faults, preventing the system from becoming unresponsive due to runaway … Read more
Smart cars require over 300 chips, industrial robots are heavily reliant, and smart homes cannot do without them—MCU chips are becoming the core engine of a trillion-dollar golden track. Behind the automatic obstacle avoidance in smart cars, the precise welding of factory robotic arms, and the instantaneous response of smart homes lies a chip the … Read more
For MCU chips, whether configured as input or output, the ultimate object of operation is a voltage signal, not a current signal. This is something everyone should be clear about. If the external input is a current signal, it needs to be converted into a voltage signal through hardware circuitry. The MCU program collects and … Read more
1. Introduction 1.1 Document Background The Serial Peripheral Interface (SPI) is a full-duplex synchronous serial communication interface developed by Motorola, widely used for data transmission between microcontrollers and peripheral devices. This document takes the communication between MCU and FLASH memory as an example, elaborating on the hardware design, software implementation, and practical applications of SPI … Read more
The “Understanding at a Glance” series explains common terms and concepts of 8-bit MCUs in the most straightforward way. Unlike traditional explanations of the 8051, this series will combine products and practices from mainstream microcontroller manufacturers in the current market (such as Zhongx, Shengx, Xinx, Yingx, Jiux, etc.) to analyze core knowledge in a simple … Read more
The automotive chip shortage that erupted at the end of 2020 has been spreading throughout the automotive industry and continues to escalate, affecting most automotive manufacturers to varying degrees.MCUs are the hardest hit area of the “shortage”.According to analysis reports, although there are many types of automotive chips, the most in demand are MCUs.MCU (Microcontroller … Read more