[align=left][size=14px][font=微软雅黑]I. Group Profile [/font] [/size][/align][align=left][size=14px][font=微软雅黑]Jomoo Group Co., Ltd. was founded in 1990, with its headquarters in Quanzhou, Fujian, in the...
GPRS and the board are connected via TXD and RXD. Question 1: Do I need to connect their grounds together? Question 2: I set the board baud rate to the default 115200 of the GPRS module, but due to th...
Many of today's designs require both shrinking board area and improving overall system performance. The new SIMPLE SWITCHER easy power nanomodules and voltage regulators are ideal for such space-const...
From OEMaddressTable, we can see that the peripherals connected to the ARM processor are assigned different physical addresses. According to the design of ARM's [b]memory controller[/b], 0X4800_0000 t...
Mine is ccs3.3, the target board is a 5509a development board, and the 510 emulator.I can't breakpoint the program at all, and it breaks after running a few steps. This happens regardless of the size ...
I am currently writing a program to generate spwm waves using msp430. I am using the symmetrical regular sampling method, but I am not sure which variable to set to control the frequency and duty cycl...
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
Abstract: In order to generate a stable excitation signal, the design of a digital frequency synthesizer is implemented on FPGA using Verilog hardware language. The design includes accumulator, wav...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
This controller uses PIC16C54 single-chip microcomputer as the controller, and it is very easy to use: just connect a telephone line to the loudspeaker through the controller, and you can rem...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
People who often surf the Internet until late at night, their families always complain that turning on the big lights in the living room affects their rest, but some people don't have keyboard ligh...[Details]
summary
This article will briefly analyze the success and shortcomings of high-frequency DC-DC switching power supplies in the process of miniaturization (the second basic goal), and propose m...[Details]
Features
POE technology can ensure the safety of existing structured cabling while ensuring the normal operation of the existing network and minimizing costs. The IEEE 802.3af standard is ...[Details]
Designing low power circuits while achieving acceptable performance is a difficult task. Doing so in
the RF
bands increases the challenge dramatically. Today, nearly everything has wireless...[Details]
1 Introduction
CAN (Controller Area Network) bus is a kind of field bus. It is used in many industrial sectors due to its outstanding advantages such as high performance, high reliability, high...[Details]