I am now writing a driver, and in the middle I need to call an unexported function in another driver. Can I find the address and then call it like in ring3? How can I do it? Can you please help me see...
Touch screen driver notes These are some notes I took while watching Wei Dongshan's 2nd video on touch screen driver. Recording is convenient for future study. The touch screen is summarized as an inp...
I want to design a switching power supply for fun. I hope you can give me some advice. I would like to thank you for the 220V input switching power supply. My output only requires that an LED lamp can...
uclinux 2.4, s3c44b0x development board, does not support jffs2 by default. I modified the kernel configuration according to the steps I searched, and then made menuconfig ... All the way down, uclinu...
I drew a board and it can be programmed. But when debugging (using CY7C1021), it doesn't work well. I got it in, but it didn't work after a while. There are always interference signals on the reset/JT...
Designers use PSpice primarily to simulate analog circuits. However, it can also be used to simulate digital filters. The main components in a digital filter are delay elements, adders, and multipl...[Details]
TD-SCDMA (Time Division Synchronous Code Division Multiple Access) is one of the three major standards for the third generation of mobile communications. It is a communication standard with indepen...[Details]
Digital signal processors have efficient numerical computing capabilities and can provide a good development environment, while programmable logic devices have highly flexible configurability. This...[Details]
Overview
Bioelectric signals are very weak, and there is strong interference when detecting them. Therefore, there are many technical difficulties in designing high-quality bioelectric ampli...[Details]
The particularity of portable medical devices determines that they should be user-friendly, must work in a sterile environment, and occupy little space and consume low energy.
At the same time, por...[Details]
With the development of automatic control technology, the application of precision air pressure generation and control technology is becoming more and more extensive. However, the traditional valve...[Details]
Power Integrations (PI) has introduced three charger/adapter reference designs using its new LinkSwitch-II series of AC-DC switching power conversion ICs. The new LinkSwitch-II devices use high-pre...[Details]
Abstract:
An amplifier solution for ceramic speaker systems is presented.
Keywords:
audio; ceramic speaker; amplifier; Class G
Today's portable devices require smaller, thinne...[Details]
Register transfer level (RTL) verification is still a bottleneck in digital hardware design. Industry research shows that functional verification accounts for 70% of the entire design work. But eve...[Details]
This year marks the 25th anniversary of the birth of FPGA and the 25th anniversary of the founding of Xilinx. At this special moment, I have two important messages to share with you: The first mess...[Details]
introduction
Data acquisition is the most basic application field of DSP. The data acquisition system designed in this paper uses the TMS320F2812 DSP chip of TI. The main features of this ...[Details]
nRF9E5 is an intelligent RF chip with an operating frequency of 433/868/915MHz, integrating an 8051 microcontroller, a 4-channel 10-bit A/D converter, and multi-channel RF transceiver.
This ar...[Details]
Preface
Today, automotive electronic devices account for a large proportion of the entire vehicle. Although these electronic modules bring comfort and safety to car users, at the same time...[Details]
1 Introduction to Oscilloscope
An oscilloscope is a tool used to measure the fluctuation of voltage or current in a circuit. It can reflect the working condition of the device in real time...[Details]
S3C44B0X is a cost-effective microprocessor launched by Samsung for embedded systems. It is a 16/32-bit RISC processor based on the ARM7TDMI core and has a main frequency of 66MHz. In order to redu...[Details]
Embedded System
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