msp430 microcontroller

I2C (Inter-IntegratedCircuit1 bus is a 2-line serial bus developed by Philips, used to connect 1 Introduction I2C (Inter-Integrated Circuit1 bus is a two-line serial bus developed by Philips to connect the microcontroller and its peripheral devices. It is a special form of synchronous communication. it has the advantages of few interface lines, simple control mode, small encapsulation form, and high communication rate. In master-slave communication, m

excessive waste of traffic, using blocking InputStream read. 1. Because it involves I/O programming, it is important to note that the coded ' utf-8 ' on both ends is consistent.os.write("datas....".getBytes("utf-8"));2. Both the client and the server have the same UUID.//客户端Socketdevice.createRfcommSocketToServiceRecord(MY_UUID);//服务端SocketmBluetoothAdapter.listenUsingRfcommWithServiceRecord(NAME, MY_UUID);3. Bluetooth is the underlying data transfer, so the actual development is more than

layer (DL,Link layer) and the application layer (AL, application layer, respectively, implement the ETHERCAT protocol toand application-level communication protocols.Data link layer is the data exchange layer of ESC and slave microprocessor, ESC and slave microprocessorcan be either SPI (Serial peripheral Interface, serial Peripheral Interface) or MCI (MicroController Interface, microcontroller interface)

In the previous blog post, we have learned how to coordinate how each level in the whole system works, and the command issued by the application layer reaches the drive layer under the kernel, thus achieving the purpose of operating the hardware layer.Let's look at the code in the final molded "shell driver" first_drv.c in the last blog post:#include As I said in my previous blog post, there is a disadvantage to this driver, and we'll optimize it in the next post. Now first to compile the driver

Ti-rtos is a TI microcontroller for real-time operating systems. Ti-rtos for faster development no longer requires developers to write and maintain system software such as schedulers, protocol stacks, and drivers. It combines real-time multitasking cores with other middleware components, including TCP/IP and USB protocol stacks, FAT file systems, and device drivers, allowing developers to focus on differentiating their applications. Ti-rtos provides a

Startup codeWhy start code must be written in assembly language, the main function of the startup code is what. Microcontroller does not need to start code, why arm to use the boot code. ------Solution--------------------------------------------------------The first few lines of code to complete initialize the interrupt vectors, stacks or something. These can only be done in assembler.------Solution-----------------------------------------------------

First, the chip is divided into chip-level and system-level Chip level is, just a chip, such as 51 single-chip microcomputer, you can write a program, download and follow the program to run, before and after the program System level is, can run operating system, such as ARM,SOC, have RAM and ROM Cpu: Computers should understand that the central processing Unit, computer computing core and control core, all of the following chips contain CPU, chip-level MPU: microprocessor, including CPU on

requirements. Linux 2.6 has added improvements to the kernel body to improve interrupt performance and scheduling response time, with three of the most significant improvements: use kernel preemption, more effective scheduling algorithms, and synchronization improvement [4]. Linux 2.6 is a huge improvement in enterprise servers and embedded system applications. In the field of embedded systems, Linux 2.6 not only improves its real-time performance, but also facilitates system migration, at the

multimedia systems. 　　 1 Linux 2.6 kernel has notable features for Embedded Development Real-time reliability is a common requirement for embedded applications. Although Linux 2.6 is not a real-time operating system, its improved features can meet the response requirements. Linux 2.6 has added improvements to the kernel body to improve interrupt performance and scheduling response time, with three of the most significant improvements: use kernel preemption, more effective scheduling algorith

, can learn to prevent their own car stolen, and can develop a more secure remote lock equipment, in the process of doing this project I deeply realized that 315M remote control system is a serious problem, The main performance in 315 remote control system decoding simple, simple launch conditions, easy to copy. Here are some of the shallow knowledge I have learned in this study, which is described in detail here.Here is the rationale for this Learning framework:Block Diagram Description: The re

Reprint website: http://blog.sina.com.cn/s/blog_7dbd9c0e01018e4l.htmlRecently engaged in a block of St's CORTEX-M4 processor, and then down this document. Share a bit.In view of the current into the public vision of M0, M3, M4 made the following simple comparison, the content from arm and other official website, here is just finishing the next, looks more intuitive point, hehe.The CORTEX-M series is optimized for mixed-signal devices for cost and power-sensitive MCU and end-use applications such

1 reviewsI/O port is a very common peripheral in the microcontroller, STM32 I/O port has 8 states, although the use of the process has not encountered any problems, but has not been very clear, so here is a summary (actually the concept is also and STM8 and other microcontroller, understand the 8 state, It also basically understands most I/O ports).2 colorsWe can see the following code in "Stm32f10x_gpio.h"

the number of tasks is the clock cycle, and the interrupt service subroutine of the clock cycle needs to traverse all the tasks using the delay function, therefore, the execution time is related to the number of tasks, which is not a fixed value. In addition, the frequency of the clock cycle can not be too high, otherwise it will be due to frequent loading of Interrupt Service subprograms, resulting in increased CPU load, affecting the real-time μC/OS-II.The 16-bit HCS12X ("S12X" for short)

website (www.mirochip.com), and the latest version 8.66 is selected in this design. Maplab contains all the components used to design and deploy embedded system applications. It manages all work by project. The built-in components include project manager, editor, assembler/connector, language tool, and debugger. A complete mplab ide project development mainly includes writingSource codeCreate a project, compile a project, run the simulator, debug the application, set the configuration bit, an

By studying GPS navigation and the Integrated Navigation Technology Based on GPRS wireless network data transmission, the design scheme of GPS graphics navigator unit based on GPRS network is presented. It consists of GPS receiver, ARM microcontroller, GPRS wireless module, large-capacity flash storage chip, and large screen TFT color LCD screen. This graphic navigation device can help users obtain excellent geographical information navigation help an