PCB Network City News Today, we share a summary of experiences in PCB process design, hoping to inspire industry colleagues.1 PCB Basic Technology 1.1 PCB Size and Shape The welding processing dimensions of PCB materials are width (200mm～250mm) * length (250mm～300mm).For PCBs with a long edge less than 125mm or a short edge less than … Read more
Hardware engineers are a group of people who “build with circuit boards”. They use various electronic components, such as resistors, capacitors, and chips, to piece together and design electronic products with various functions, such as mobile phones, computers, routers, and more. Sounds simple, right? But in reality, the work of hardware engineers is not that … Read more
Some Screenshots of E-books 【Complete Set of Hardware Learning Materials Collection】
Many newcomers and engineers learning embedded systems often feel confused halfway through their studies. They don’t know where to start, how to advance, or what level they are currently at in their learning journey. To address these common concerns, today, an embedded engineer with 8 years of experience will share insights on what skills you … Read more
Click the blue text to follow Software Installation Home Understanding the Software Multisim is a Windows-based simulation tool launched by National Instruments (NI) for the design of board-level analog/digital circuits. It features graphical input for circuit schematics and a hardware description language input method, with extensive simulation analysis capabilities. With Multisim and virtual instrumentation technology, … Read more
The PMU is the power management unit responsible for supplying power to the SOC, regulating voltage and current to ensure that various modules operate normally. Power integrity ensures that the Power Distribution Network (PDN) can provide stable and clean voltage and current, avoiding noise interference with the normal operation of the SOC. So what exactly … Read more
RS485 has strong anti-interference capability and low cost, making it widely used in various fields such as industrial smart instruments and communication devices. The RS485 circuit can be divided into non-isolated and isolated types. Among them, the isolated circuit adds isolation performance based on the non-isolated circuit, giving the circuit stronger anti-interference and system stability. … Read more
The RK3588 core board is a widely used 8K flagship SoC chip from Rockchip, and it is one of the domestic chips frequently used by many electronic engineers. When using the RK3588, EMC issues often arise. So, how can we reduce these EMC problems? 1. Mold Isolation Design Connectors should be recessed as much as … Read more
Introduction to DDR Circuits The RK3588 DDR controller interface supports the JEDEC SDRAM standard interface. The schematic circuit for 16-bit data signals is shown in Figure 8-1, address and control signals are shown in Figure 8-2, and power signals are shown in Figure 8-3. The circuit controller has the following characteristics: 1. Compatible with LPDDR4/LPDDR4X/LPDDR5 … Read more
1 Introduction Using Electronic Design Automation (EDA) software to design electronic circuits is the mainstream method in today’s electronic design. Currently, commonly used EDA tools in China include Multisim, Protel, Matlab, Spice, Maxplus II, etc. Among these, Protel 99 SE is a circuit design software that runs in a Windows environment, mainly consisting of schematic … Read more