msp430 i2c

Generally, flash memory in single chip microcomputer is used for storage.ProgramCodeIs a read-only memory. In the MSP430 microcontroller, you can use the built-in flash controller to erase or rewrite any segment of content. In addition, the MSP430 microcontroller also has a flash area (information memory) for storing data that needs to be permanently stored after power loss. The Flash Controller of 430 can

At the beginning of September, I received an email from Ti about the promotion of the MSP430 Launchpad Development Board. I couldn't help but hook up with my students to apply for a free Ti sample, and join the group to sign up for the memories of the c2000 and MCU Innovation Design Competition (just a soy sauce ......), go to Texas Instruments online technical supportCommunityThe Forum circled. Surprise found Ti is holding a "easy Show,

Ucos-ii on MSP430 Migration 2--detailed process 1, a new IAR project file, saved in the "E:\430uCOSII\OSTest" folder. Create a new folder SRC, which is used to store the source code. As shown in the following figure. 2, add the source code corresponding folder. (1) Create a new two folders under the SRC folder, "Oskernel" and "Msp430ports" respectively. (2) Decompression micrium-ucos-ii-v286.zip. There are 14 files under Micrium\software\ucos-ii\sou

1. Overview 2. Data Structure 3. Adapter 4. I2c-core 5. Slave Device 1. Overview 1.1 Definition I2C inter-integrated circuit SMBUS System Management Bus, the I2C subset 1.2 Characteristics The amount of data exchanged is small. The required data transfer rate is low. 1.3 Speed Fast speed Kbps Full speed Kbps 1.4 Topology 2 Data Structure Understanding the da

Linux i2c subsystem architecture, linuxi2c Subsystem Writing i2c Device Drivers (slave devices) can be either of the following methods: 1. You can write an independent Slave Device Driver and use it directly. 2. the Linux kernel has implemented a general device driver. The general device driver is used to write an application (User-mode driver) and a large number of interfaces provided by the device driver

1. General architectureMSP430 MCU adopts von Neumann structure, including 16-bit RISC CPU, memory, on-chip peripheral, clock system, simulation system and data bus and address bus.2, msp430x CPU (Cpux)DB AB Alu-Number MSP430F1XX 16-bit 16-bit (maximum addressing 64KB) 16-bit->CPU Msp430f2xx/4xx/5xx/6xx 16-bit 20-bit (maximum addressing 1MB) 20-bit->cpux CPU Internal registers:R0:PC program Counter procedure Pointer 20bitsR1:SP point stack stack pointer 20bits downR2:SR/CG1 Stat

, the information can be transmitted in two directions, but not at the same time two-way transmission is called single-duplex communication, the same two-way transmission is called full-duplex communication.Serial communication can be divided into synchronous communication and asynchronous communication two, asynchronous communication (UART) transceiver does not have the same clock source, and synchronous communication (SPI, I²C) has the same clock source.The USCI has a hardware module that supp

The IAP Upgrade Program tested and written over the past few days is really bad. It can be downloaded but cannot run. After a variety of tests, I finally found the cause of the problem. Now I will summarize the reasons when I write the IAP program. Problems and Solutions. First, we need to implement the IAP Upgrade Program for single-chip microcomputer. We need to know how our IDE can Fix the compilation address of the function or variable of the program, because we need to fix the address of

, the power supply. The original idea was very simple: USB power supply! It's easy, so I didn't hesitate to choose USB to provide the driver power for the system. But at the end of the project, there was no USB interface next to it, so can you still use it, as a result, we have learned that the project we are working on is always user-oriented, and the power supply must be done independently so that it can be called a system. 3. The next step is the software part. We should have no system cont

Implementation of MSP430 FFT algorithmHttp://bbs.21ic.com/icview-391532-1-1.htmlHttp://blog.sina.com.cn/s/blog_6cd2030b01018fp8.htmlThe physical meaning of FFT algorithmhttp://blog.csdn.net/hzn407487204/article/details/6249945Complete DSP implementation of FFT algorithmhttp://blog.csdn.net/xiahouzuoxin/article/details/9790455An explanation of FFT algorithmHttp://blog.sina.com.cn/s/blog_6340cd9c0101e3id.htmlMSP430 Study notes-Implementation of the root

In a twinkling of an eye, my junior year is coming to an end, and my college life is coming to an end. Because I am interested in software, I may be away from my major (Electronic Information Science and Technology) after graduation; I also participated in electronic design competitions during my college career. During the competition, I was mainly responsible for Single-Chip MicrocomputerProgramTherefore, we are familiar with the MSP430 Series single

The ad7708 is a 16-bit Σ-△type adconverter chip. in low-frequency applications, the ad7708 can be used as the complete front end of a single power supply. The ad7708 contains a PGA (Programmable Gain Amplifier) to enlarge the signal. The PGA range is 20-28, which is programmable, when the reference voltage is V, the voltage from 20mv to 2.56v can be measured. The ad7708 and ad7718 pin functions exactly the same, but the number of digits ad7718 is 24 bits. If you use 7718, you only need to change

Here, let me discuss the problem of using __delay_cycles delay for MSP430 MCU.The IAR for MSP430 compiler provides a compiler inline precision delay function (not a truefunction) to provide the user with a precise delay, the function prototype is:__intrinsic void __delay_cycles (unsigned long __cycles);This intrinsic function implements the delay of __cycles CPU cycles, but for the setting of this parameter

This article refers to: Http://bbs.ednchina.com/BLOG_ARTICLE_3013784.HTMMSP430F149 has two usart communication ports, the performance is exactly the same, each communication port can be converted through the RS232 and RS485 chip, and the corresponding serial interface circuit communication. The msp430f149 supports serial asynchronous and synchronous communication, each with a separate frame format and independent control registers.Usart Asynchronous communicationThe

DirectoryFirst, LINUXI2C Drive--Overview 1.1 Written in front 1.2 I2C 1.3 Hardware 1.4 Software 1.5 reference two, LINUXI2C drive--I2C bus 2.1 I2C Bus Physical structure 2.2 I2C Bus Features 2.3 Start and stop conditions 2.4 Data transmission Format 2.5 response 2.6 Bus arbitration three, LINUXI2C drive--analysis of EE

Recently, I am working on a capacitive touch screen driver and using I2C bus interfaces to transmit data. So let's take a look at the I2C bus principles. The I2C bus is a character transmission bus between chips launched by Philips. It adopts two-wire system, which consists of the serial clock line SCL and serial data line SDA. In the circuit design, the

1 I2C communication protocol and S3C2410 chip Introduction I2C (Inter Integrated Circuit) bus was launched by Philips in 1980. The I2C bus transmits information between the bus and the device using two wires (SDA and SCL), serial communication between the microcontroller and external devices, or bidirectional data transmission between the master device and the sl

This part is prepared for analysis and summarization in several partsBecause I2C communication must have at least two chips, the driver consists of two parts: I2C driver of the main chip I2C driver from the chip Note: What if none of the options are supported ??? (Unfortunately, only two chips can be driven, but the process is similar) (1).

I recently encountered some problems when debugging I2C. I hope you can help me with similar problems. Keywords: I2C sub-steady state low speed signal dejitter [Prelude]In the system, the I2C slave function must be implemented in the CPLD to communicate with the I2C interface of the CPU, so as to expand the gpio port

I. Overview Speaking of writing I2C drivers in Linux, there are currently two main methods: one is to treat I2C devices as a common character device, the other is to use the Linux I2C driver architecture. The two drivers are compared below. The advantages of the first method (corresponding to the disadvantages of the second method) include:● The idea is straightf