stm32f4 chip

Serial communication of 51 single-chip microcomputer (III.)has been read 47 times 2015-12-29 00:21 | Personal Category: 51 single-chip microcomputer | single chip microcomputer, communication Use the serial port to send and receive simultaneously operation: The computer displays the result source program:/*Project name: Serial send and receive experimentProjec

The central bank issued a magnetic stripe card will be fully replaced by chip card, AgBank's bank card to change chip card to ask for money? How do you change it? Using ABC bank card friends, we will see the following ABC's magnetic stripe card to change the cost of chip card. ABC Exchange card cost is 40 yuan, the first IC card is free before the end of

Tags: man EPO direct Linu network card open source Basics boot self-starting forObjective:An embedded device that resembles a Raspberry Pi AARCH-64 architecture can be connected to Ethernet via a USB wireless card;The device has a LAN interface, but in the previous system firmware upgrade, its internal three network interfaces can ping each other, but either interface cannot ping the external network interface, the problem is not resolved;In addition, the lab also involves connecting to the exte

Chip design This business, from the big aspect, mainly divided into analog and digital two chunks, and each large and sub-front and back end, I think most of the students on this is definitely very clear, the following on the digital circuit chat chip design Some things, is the chip design has what to do, this is not a complete system introduction, Just a persona

As the main control unit of the embedded system-single-chip microcomputer, its software is often a micro real-time operating system, and most of them are specially designed for a certain application. The system program is capable of real-time process control or real-time information processing. It must be able to respond to random external events in a timely manner and quickly process the events. However, the time-sharing operating system divides the

The continued popularity of the smartphone market has also escalated the battle for upstream processors. Recently, the traditional chip manufacturers- -Broadcom, Inc., announced that it will exit the mobile phone communication chip market (baseband processor chip), let people sigh unceasingly. But at the same time, the "upstart" Intel is accelerating the layout

Learning to use single-chip microcomputer is to understand the hardware structure of single-chip microcomputer, as well as the application of internal resources, to learn initialization settings of various functions in the compilation or C language, and to implement programming of various functions. Step 1: use of digital I/O With the button input signal, the Light Emitting Diode shows the output level, you

Serial screen (touch screen) configuration Software + 51 single-chip Modbus RTU Multi-machine serial communication program source codeRealization of the touch screen (serial screen) and SCM communication, mainly to solve the problem of communication protocols. This paper uses the open Modbus Communication protocol to Guangzhou Hmimaker touch screen as host (master), single chip microcomputer as Slave (slave

Collect collected information from the Internet: How can I determine whether the crystal oscillator is working properly? 1. There are many judgment methods. It is most direct to view the waveform with an oscilloscope. You can also test the voltage with the voltage file of a digital multimeter. Because the duty cycle of the crystal oscillator waveform is 50%, therefore, the average voltage measured is about 1/2 VCC. For 51 single-chip microcomputer, wh

act as an added comport independent of any existing hardware in the form of PC application software. The comport uses the application software running on the PC to access a cp2101-based device by accessing a standard hardware comport. data transmission between the PC and cp2101 is completed through USB. Therefore, you can transmit data to a cp2101-based device via USB without modifying the existing software and hardware. 1 cp2101 featuresCp2101 is small but powerful. Its main features are as fo

Reprinted please indicate from: http://blog.csdn.net/icyfox_bupt/article/details/6766830 Baidu Encyclopedia: UART: Universal asynchronous transmitter/transmitter, a general asynchronous receiving/sending device. UART is a parallel input into a Serial Output chip, usually integrated on the motherboard, most of which are 16550afn chips. Lm3s series single-chip microcomputer generally have UART input and outpu

This is a small experiment I did last semester, but I think the control MCU is more direct than the control arm, because some of the arm is better than the MCU encapsulation, so you are not very in-depth. If you have learned MCU, it will be easier for you to learn arm, but arm is a little more complicated than MCU. This code was removed from my previous blog, but I used Sina before. Now I think Sina is an entertainment blog, but blog garden, I think it is a real technical blog website. I hope th

We already know that single-chip microcomputer has Rom, ram, and parallel I/O Ports, so what are there in the single-chip microcomputer besides these? How are these fragmented things connected together? Next let's make a complete analysis of the single-chip microcomputer! We can see that in 51 single-chip microcomput

Http://hi.baidu.com/mcu8031/blog/item/c95903138671c625dc540171.html Microcontroller-driven dm9000 Nic chip (detailed debugging process) [bottom] 4. verify each function in initialization. Next let's take a look at whether the above initialization function is available. We have written three functions as follows: Dm9000_init (), sendpacket (), and receivepacket () are saved and named dm9000.c. Now that we want to debug, when However, there must be outp

Today, we finally received the BDM and xs128 core Boards, which can be used to test the fit of the BMI simulator and build the codewarrior compiling environment. 1. bmdfirst plug in to the computer USB, and install the USB drive USB dm_drivers_1_2_0_winxp_x32.exe (5.41 MB). Success example: There are four drivers, corresponding to different versions of XP and win7: ① Usbdm_drivers_1_2_0_win_x32 corresponds to the 32-bit win7 System ② Usbdm_drivers_1_2_0_win_x64 corresponds to the 64-bit win7 Sy

Recently, p178g is used, and internal registers need to be controlled to implement the switch and VLAN configuration of each Phy. In order to replace the "pseudo" Switch implemented by the original analog switch, you can use the SMI interface to read and write registers through ds to control the IC operation status. Time Series and format The prefix code of this chip is different from the 32-bit high level of many other chips. It can also be impleme

Protocol Stack chip implantation is imperative, IPSec is an error, and ipsec is imperativeThis article is a bit extreme, but may also cater to some people or organizations. This article is short. I will continue to write this topic later. The heart is too painful and the person is too weak.1. Protocol Stack chip ImplantationIf you think that protocol stack chips are consuming materials and eliminating costs

The hardware architecture and low power consumption of the Bluetooth single chip DA14580 describes the DA14580 hardware architecture and the low power consumption principle. This paper expounds the software system of the platform, and emphatically analyzes the processing mechanism of the message event.First, DA14580SOC hardware composition and software system compositionThe DA14580 chip hardware architectur

Single-chip microcomputer IO Port standard bidirectional, push-pull, high resistance, open-drain mode, LED induction light off experiment11 Long vacation at home rotten, nothing to do, DIY technology get up!"An experimental study on the working type of the 12C enhanced microcontroller I/O port"Animation video effect Download: STC single-chip head file "51cto--> single-c