1. What is VX1000? The VX1000 system is a high-performance measurement and calibration hardware that enables high bandwidth and high-frequency acquisition of internal ECU variables through high-speed debugging interfaces of the MCU (such as DAP, JTAG, SWD, Aurora, TPIU, etc.), with minimal or no CPU resource consumption. Additionally, the VX1000 system offers a wide range … Read more
This article is the second in a series discussing peripheral modules of microcontrollers, focusing on how to improve ADC conversion accuracy.In this article, I will summarize the understanding of the reference voltage for ADCs, which many engineers are not very clear about, especially in scenarios where the ADC is used with a battery directly powering … Read more
Any practical electronic application will be affected by multiple sources of error, which can cause even the most precise components to deviate from their specified behavior in the datasheet. When the application signal chain lacks built-in mechanisms to self-correct these errors, the only way to minimize their impact is to measure the errors and systematically … Read more
The digital-to-analog (DAC) and analog-to-digital (ADC) conversion in microcontrollers is a key technology that connects digital systems with the analog world. 1. Basic Concepts 1. DAC (Digital-to-Analog Converter) Function: Converts digital signals into analog signals (such as voltage or current). Application Scenarios: Driving motors, audio output, LED dimming, etc. Implementation Methods: Weighted resistor networks, R-2R … Read more
Regarding the reference voltage of the ADC, I have found that many engineers do not have a clear understanding. This is especially true in scenarios where the battery directly powers the MCU and the ADC is used. This article provides a brief summary. Taking the classic STM32F103 as an example, the reference voltage for the … Read more
Man Tan Jun: Focused on sharingthe most excitingautomotive development technology! Beauty comes in many forms, including physical beauty, temperament beauty, intellectual beauty, and inner beauty, etc. Often, the most charming combination is a blend of these types! Cars are similar; a beautiful appearance needs to be paired with good performance, and the combination of both … Read more
Author: Daxin Different types of applications require different types of sensors to collect data from the environment. This article introduces some common IoT sensors.In the Internet of Things (IoT) ecosystem, two points are very important: the Internet and physical devices such as sensors and actuators. As shown in Figure 1, the underlying layer of the … Read more
1. Front Oxygen Sensor: Greater than 2V——— Lean (Idle 1.5-N20.N55; 2V-N52); Equal to 2V———- Complete combustion; Less than 2V——– Rich 2. Rear Oxygen Sensor: Greater than 0.45V——— Rich; Equal to 0.45V———- Complete combustion (generally 0.7V); Less than 0.45V——– Lean 3. Intake Manifold Pressure Sensor: With VALTRANIC: Absolute pressure 950mbar, relative pressure 50mbar; if the VVT … Read more
Many users encounter situations where the touch screen becomes unusable due to faults. This is primarily because touch screens are precision devices, and their widespread use leads to frequent malfunctions. Below are some common troubleshooting and maintenance methods for touch screens: When a touch screen malfunctions, first check if the power supply to the control … Read more