The factory defect rate of an MCU (Microcontroller Unit), usually expressed in PPM (Parts Per Million), is a highly variable value that depends on several key factors. For mainstream, mature MCU manufacturers and product lines, the factory defect rate can typically be controlled at a very low level, generally ranging from 10 PPM to 100 … Read more
First, the answer: Inside the MCU chip, a resistor (or an equivalent “weak connection”) is placed between VSS and VSSA, rather than a direct short circuit or complete open circuit. This is based on the core ideas of “single-point grounding” and “noise isolation”, but also requires additional consideration of the physical realities and reliability of … Read more
Development of Flashing Light IC Chip MCU with 2 LED Output Control and Voice Recording Chip SGL8022WS, Dimming Touch Control Chip IC, APS8022W-EFlashing Light IC Chip Multifunctional Single Flash Chip Single Key Loop Control LED On/Off IC Flashing Light Toy ChipSmart Toothbrush Sterilizer Solution Development UV Sterilization Induction Sterilization Box Solution Design and Development
MCU Microcontroller NY8A051H Voice IC Recording Chip for Lollipop Massager with Flashing Lights AirPods Charging Case Apple Connector Protocol Decoding Chip IC, APS0225Multifunctional Traffic Safety Command Stick Electronic Board LED Command Stick Control Board Flashing Warning Command Stick PCBAVoice-Controlled Electronic Board Sound Control for Lighting/Playing Sounds/Singing Mechanism Board PCBA Design + Production
15.2 Introduction to Interrupt Processes When an interrupt occurs, it first passes through the IRQ register. When the IRQ register detects an interrupt, it sends an interrupt signal to the Nested Vectored Interrupt Controller (NVIC) of the central processor. When the NVIC detects the interrupt request, it suspends the corresponding interrupt service routine (ISR). After … Read more
Recently, several robotics companies have announced product updates: On August 29, New Times stated in response to investor inquiries that the company plans to launch an embodied intelligent welding solution in September, which can be widely applied in various industries such as shipbuilding, steel structures, tower corners, and construction machinery; on August 25, Chen Nanjian, … Read more
When selecting between ARM and RISC-V architecture MCUs from the perspective of end users, considerations should include project requirements, development resources, costs, and strategic planning.We will compare the differences between ARM and RISC-V architecture MCUs from various dimensions: ARM Architecture MCU RISC-V Architecture MCU Cost and Licensing Requires payment of core licensing fees (BOM cost … Read more
Preparation Work Hardware Confirm the MCU serial port (USART1, UART4, etc.); Confirm the “pins” (TX: transmit pin, RX: receive pin). For example: PA9, PA10; TX connects to RX, RX connects to TX, GND connects to GND; Note: Ensure common ground (GND), which is essential for the signal circuit and level reference. Protocol Format: Ensure that … Read more
“ In today’s highly digital world, we are surrounded by countless smart devices. From smartphones to autonomous vehicles, from IoT sensors to large-scale data centers, these technologies rely on various processing chips. However, faced with the dizzying abbreviations of CPU, MCU, MPU, SoC, DSP, ECU, GPU, and FPGA, even industry professionals can sometimes feel confused.” … Read more
This article introduces the working principle of a classic microcontroller power circuit, as shown in the figure below. Initial State (Power Off) Before the circuit is powered on, the “TEST” switch is open, and the MCU is not powered by VCC. At this time, the base of transistor T1 is grounded through R9 (100k), keeping … Read more