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Debug passed.   key_scan_p2() //Timer, or main program scan { uchar x,y,z;  P2=0x0f;     x=P2&0x0f;  P2=0xf0;  y=P2&0xf0;  z=x|y;    if(z!=key_value1) key_value1=z; //If the two results are different...[Details]

Linux：Ubuntu9.10 Compiler version: arm-linux-gcc-4.3.2 Qt:qtopia-free-src-2.2.0.tar.gz Dependent libraries: libjpeg library (refer to Transplantation (I)); uuid library. For operation, refer ...[Details]

Characteristics of turn-off thyristor After ordinary unidirectional thyristors are triggered by control electrode signals, they can remain on even when the signal is removed. To turn them off, the po...[Details]

O Introduction In the field of microelectronic devices, there are many studies on SiC devices, and great progress has been made. However, in the field of MEMS, there are still many problems...[Details]

Abstract: Professional large-scale disk storage systems have developed into large array systems containing multiple disks. As the number of disks in the system continues to increase, the possibilit...[Details]

Abstract: With the help of Matlab's FDATOOL filter design and analysis software, a FIR digital bandpass filter is designed and used to filter a noisy speech signal. The filter is implemented ...[Details]

BYD Microelectronics and Shenzhen Ruiling Industrial Co., Ltd. (hereinafter referred to as Ruiling Industrial) plan to carry out in-depth exchanges and cooperation in power devices, current sensors a...[Details]

China Energy Storage Network: I don’t know how to scan a code when I go out, and I can’t read the words on the mobile phone APP clearly... Solving these problems was put on the agenda at this...[Details]

According to an announcement released on Sony's official website, an intermediate holding company, Sony Electronics Corporation, will be established on April 1, 2020.   Sony Electronics will integrat...[Details]

Editor: Because the LINUX kernel already supports the host driver of S3C2440 and supports a wide range of peripherals, this part can be used just by configuring. Because there are many things to co...[Details]

After understanding the STM32 memory structure and related knowledge, we can design IAP. In the previous note, a simple IAP program structure and the system design of the interconnection with the Use...[Details]

Modern wireless service providers are striving to expand bandwidth and provide Internet Protocol (IP) services to more users. Long Term Evolution (LTE) is a next-generation cellular technology that...[Details]

0 Introduction Insulated gate bipolar transistor (IGBT) is a new type of composite device of GTR and MOSFET. Since its introduction, it has become the mainstream switching device in today'...[Details]

 August 14th news, Alibaba DAMO Academy announced that its self-developed perception algorithm has achieved low-wire  The high beam simulation of LIDAR (laser radar) indirectly increases the LiDAR ...[Details]

Constant pressure water supply inverter is an automation device widely used in water supply systems. It achieves constant water supply pressure by adjusting the speed of the motor. When using const...[Details]