I use protel 99 se. It was working fine two days ago, but after I drew a picture last night, I couldn't open the pcb. I don't know what the problem is. Every time I open it, it always shows "format '%...
[size=4] DC adjustable voltage regulated power supply with overcurrent protection The main component of this power supply is a universal voltage regulated integrated block, which contains startup circ...
I can read and write AT24C02 normally with the program of kevin520. Now I want to read and write RDA5820. The data register of RDA5820 is 16 bits. Each time it reads, it will send two bytes of data co...
Sometimes we hope to manually specify the short address of a Zigbee node. However, this is not possible in theory for Zigbee 2006 and 2007, which use a tree-type address allocation scheme. If you spec...
As medical equipment develops towards intelligence, miniaturization, serialization, digitization, and multi-functions, the logic control devices in medical equipment have also evolved from medium- a...[Details]
Keeping the heart environment compact and warm is beneficial in most cases, but it’s another story for electronic heart scanners. When GE Healthcare was designing a scanner that was said to be the fas...[Details]
As the price of readers and tags decreases and the global market expands, the application of radio frequency identification (RFID) is increasing day by day. Tags can be powered by readers (passive ...[Details]
0 Introduction
Metal halide lamp (MHL) as a green lighting source has been widely used in the field of indoor and outdoor lighting. However, when using this green lighting source, the matc...[Details]
In order to meet the requirements of video systems, industrial and medical display and video transmission applications such as eliminating the limitation of long connection cables, increasing data ...[Details]
According to In-Stat/MDR, the number of mobile phones with Bluetooth capabilities will reach at least 300 million by 2005. One of the clear evidences of the increasing adoption of Bluetooth is that...[Details]
Touch sensors have been in widespread use for many years, but recent advances in mixed-signal programmable devices have made capacitive touch sensors a practical, value-added alternative to mechani...[Details]
With the continuous development of digital television, the demand for high-definition is imperative. H.264, as a new generation of compression standard, has a more complete algorithm than MPEG-2, ...[Details]
Designers have the most say, they believe that the most decisive integrated circuit technology in the 21st century is the field programmable gate array (FPGA), and traditional gate array and struct...[Details]
Abstract: An anti-collision system for automobiles is designed and developed. Based on the ultrasonic principle, the anti-collision system transmits and receives ultrasonic signals, measures the t...[Details]
0 Introduction
IIR filters are not easy to make into linear phase, but FIR filters can be made into linear phase as long as certain conditions are met. The requirement for linear phase is ...[Details]
Four-channel programmable digital down converter HSP50216 and its application in software radio
1 Introduction
Software radio originated from the graveyard of Speakeasy tactical commu...[Details]
0 Introduction
A cochlear implant is an electronic device that helps patients with sensory hearing loss restore their hearing. It converts external sounds into electrical stimulation requi...[Details]
0 Introduction
Digital filter is a digital system used to filter discrete time signals. It achieves the purpose of frequency domain filtering by mathematically processing the sampled data....[Details]
O Introduction
As an important energy source, coal plays a vital role in many aspects such as industrial production and is related to the lifeline of the national economy. Safety issue...[Details]
FPGA/CPLD
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