when we use the MSP430 MCU for project development, we will encounter the output format of the two image files (as shown): Legacy COFF and Eabi (ELF), this article launches from this topic, leads to COFF Abi and Eabi two application binary interface, Enables developers to low-level from theMSP430 has a new understanding. 1. image file output formatthe MSP430 compiler can output image files in two formats:A
I found some questions when I read the header file ccw.x613x. h In rf_example_code_v1.0.
First, let's take a look at ccw.x613x. h.Three # define examples in:
# Define defc (name, address) _ no_init volatile unsigned char name @ address;
# Define defw (name, address) _ no_init volatile unsigned short name @ address;
# Define defcw (name, address) _ no_init Union
{
Struct
{
Volatile unsigned char name ##_ L;
Volatile unsigned char name ##_ h;
};
Volatile unsigned short name;
} @ Address;
The previ
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
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
In order to write an article to pave the mat-remind yourself,,,,,,These two days have been looking for#pragma vector = port1_vectorvoid p1_interrupt ()//P1 port Interrupt function { }For the explanation of these two sentences, at least let oneself feel can persuade oneselfAfter seeing a lot of my own understanding#pragma vector = Port1_vectorIn layman's terms, this is to tell the C compiler that the function below you is the interrupt function of the P1 port, and enters the following function w
the MSP430 contains the adc12 module, which can complete 12-bit analog-to-digital conversion. When the requirements for precision or other indicators are not high, you can use the adc12 In the 430 microcontroller to complete the analog-to-digital conversion. Here we mainly implement a general adc12 module initialization Program . The specific data storage and processing needs to be added in the interrupt processing function.
Hardware introduct
prohibited in this mode, DCO clock source if it is ACLK, then DCO is also valid;⑦ The MSP430 header file has a detailed definition of the low-power mode, such as: to enter the low-power mode 0, you can write the LPM0 directly in the program; Enter low-power mode 4 to write LMP4 directly. Exit the low-power mode as follows:Lpm0_exit; Exit low-Power mode 0 // too easy to have wood thereLpm4_exit; Exit Low Power Mode 4 (exceptLPM4.5 )Summarize the exper
Find the source of a development environment that supports information about AVR, MSP430, and ARM-general Linux technology-Linux programming and kernel. For more information, see the following. The avr-libc of Ubuntu 8.04 is too old to feel bad. By luck, we found a third-party source.
Http://think.objectweb.org/toolchains.html
It contains three development environments: AVR, MSP 430, and ARM. I hope it will be useful to you.
An environment th
(){ReturnReadkey ();} To implement scanf call, you also need to set it. For detailed settings, refer to: MSP430 library In this way, the scanf port of the keyboard is completed. to use it, you only need to include the stdio. h file, and then initialize the keyboard.
Example: Here, the example implements simple interaction between the keyboard and the LCD. When the keyboard inputs data, the LCD is displayed normally, just like the keyboard an
LCD is one of the most commonly used display devices in single chip microcomputer systems.ProgramThe database is tested on the msp430f169 and msp1430f149 single-chip microcomputer and can be used with confidence. LCD uses the 12864 liquid crystal of the ocmj4x8c model and the control liquid crystal uses the parallel method, the three control ports are p3.0, p3.1, and p3.2, and the data uses the P5 data IO port.
Hardware introduction: 430 digital IO port: Msp430f149, msp430f169 has a tota
Using MSP430 (f149) for infrared reception is simpler than sending. The infrared sensor I use is hs0038b. The original output is low when receiving a 38 K infrared. Otherwise, the output is high, we can start to writeProgramBecause there are many circuit diagrams of hs0038b, I will not post them here. The following is a specific example.Code:
# Include
Include the sorted infrared transmission and receipt. Here we will make a record. If you have a
First create a common point H file, add the common code as followstypedef union{ struct { unsigned char b0:1; unsigned char b1:1; unsigned char b2:1; unsigned char b3:1; unsigned char b4:1; unsigned char b5:1; unsigned char b6:1; unsigned char b7:1; } Bits;} Uint8_val;General definition when the union is written, to define a flag bit that occupies only a byte, simply define the Uchar byte and then refer to one of its members.For ex
Why I use P1out ^= 0x01; and p1out = 0x01^ is a different or calculated symbol so each operation is reversed. This operator, however, is maintained at a state of 1.P1out|=bit6 the value of P1out if it is 1, if it is 0, take the value of BIT6What do you mean, p1out |= BIT7?Define the P1.7, which is different from the definition of 51, 51 needs sbit, if you need to define p1.2,p1.3, you can write: P1out |=bit2 + BIT3, and then you can operate on it, such as P1out ^= BIT0, so P1.0 output high level
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