Traditionally, a mobile phone that supports calling, texting, internet services, and APP applications generally consists of five parts: RF part, baseband part, power management, peripherals, and software. RF: Generally the part for information transmission and reception; Baseband: Generally the part for information processing; Power: Generally the part for power saving, as mobile phones are energy-limited … Read more
Hello everyone, good evening~ Today is still a technical article! Siemens Modbus RTU Communication: S7-200 smart Modbus RTU Master Communication (√) S7-200 smart Modbus RTU Slave Communication (√) RS485/232 Communication Ports and DP Connector Connection Methods S7-1200 Modbus (RTU) Instruction V3 Basic Functions S7-1200 Modbus (RTU) Instruction V4 New Functions Each S7-200 SMART CPU provides … Read more
PROFIBUS Wiring Please refer to the document: Profibus Wiring PROFIBUS Connectors and Termination Resistors The connector is used to connect the ROFIBUS cable to the PROFIBUS stations (as shown in Figure 1). Figure 1 Usage of PROFIBUS Connector On the PROFIBUS connector, there is an incoming port (In) and an outgoing port (Out), which connect … Read more
1. Overview of MODBUS Communication The MODBUS protocol is divided into MODBUS protocol over serial links and MODBUS protocol based on TCP/IP. The serial link MODBUS protocol includes MODBUS ASCII (string) and MODBUS RTU. The MODBUS protocol library provided by 200SMART supports MODBUS RTU communication. MODBUS RTU sends data in hexadecimal values. MODBUS ASCII sends … Read more
1. Flight Control Technology Flight control technology is one of the core key technologies of drones, ensuring stable and safe flight in complex environments. The flight control system of a drone consists of sensors, flight controllers, and actuators, enabling autonomous flight, navigation, positioning, and obstacle avoidance. Among these, sensors include gyroscopes, accelerometers, barometers, and cameras, … Read more
Welcome FPGA engineers to join the official WeChat technical group Clickthe blue textto follow us at FPGA Home – the best pure engineer community in China Detailed Explanation of Xilinx RapidIO Core 1. Overview of RapidIO Core The design standard for the RapidIO core comes from the RapidIO Interconnect Specification rev2.2, which supports three modes: … Read more
01. How many MMUs are there in a large system? 02. How many Translation regimes are there in an ARM Core? 03. What are the differences among EL1&0 Translation regime Stage 2, EL2 Translation regime Stage 1, and EL2&0 Translation regime Stage 1? 04. What is special about the TTBR1EL2 register, and who uses this … Read more
Learning Methods Scan to FollowLearn Embedded Together, learn and grow together Learning the Arm architecture versions v8 and v9 requires a deep understanding of several key concepts and mechanisms, including GIC (interrupt controller), exception handling, MMU (memory management unit), memory management, cache, TrustZone security architecture, security, and exclusive mechanisms. Here is an efficient learning method … Read more
Learning Method Learning the Arm architecture versions v8 and v9 requires a deep understanding of several key concepts and mechanisms, including GIC (Interrupt Controller), exception handling, MMU (Memory Management Unit), memory management, caching, TrustZone security architecture, security features, and the exclusive mechanism. Below is an efficient learning method that covers these important topics: Establish a … Read more
Click the blue "Arm Selected" in the upper left corner and select "Set as Favorite" Thoughts 1. Why use virtual addresses? Why use MMU? 2. The MMU hardware completes address translation, what else do we need to do in software? 3. Where is the MMU? What is the relationship between MMU and SMMU? 1. Introduction … Read more