msp430 microcontroller

Tags: blog HTTP Io ar use for SP on 2014 // Chip msp430f149# Include "io430.h"// Define the clock speed# Define cpu_f (double) 8000000)// Define the latency Function# Define delay_us (x) _ delay_cycles (long) (cpu_f * (double) x/1000000.0 ))# Define delay_ms (x) _ delay_cycles (long) (cpu_f * (double) x/1000.0 )) Void main (void){Unsigned char I;Wdtctl = wdtpw + wdthold;P2dir | = 0x01;P5dir | = 0x70;Bcsctl1 = ~ Xt2off;Bcsctl1 + = 0x30; Do{Ifg1 = ~ Ofifg;For (I = 0xff; I> 0; I --);}While (ifg

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

;//1. p3.6,p3.7 Selected as UART1 communication portME2 |= UTXE1 + URXE1;//2. Enable USART0 to be sent and acceptedUCTL1 |= CHAR;//3. Select 8-bit charactersUTCTL1 |= SSEL0;//4. Select Clock Source, Aclk:ssel0 //Smclk:ssel1UBR01 =0x03;//5. Baud Rate 32767hz:9600UBR11 =0x00;//UMCTL1 =0x4A;//ModulationUCTL1 = ~swrst;//6. Initialize the UART state machineIE2 |= URXIE1;//7. Enable USART1 to receive interrupts}/* Two, Uart1 send a byte*/voidUart1_send_byte (byte dat) { wh

Today, it has been a long time since the JTAG download problem of MSP430. In the end, it is actually a problem with the port mode. In My bios, the default port is the SSP mode, but if JTAG is used, it needs to be changed to the ECP or EPP mode. after entering the BIOS to correct it, there is no problem, debugging is now available. There is another problem that I don't know why. I have bought a 430 Development Board for a long time and used it out. T

operation register you need to control it in the MSP430G25XX.h and in the User guideDTC can control the sampling speed to some extentADC10SA is the start address, and I use 0x0200 because I know that the start of the data I collect is it,You need to add these two lines of code in your loop to keep the analog values up to date Adc10ctl0 |= ENC + adc10sc; Sampling and conversion start __bis_sr_register (Cpuoff + GIE); LPM0 with interrupts enabledThe second sentence is to

Download gcc:http://sourceforge.net/projects/mspgcc/from here After downloading it is a zip package, extracted, and then set environment variables, for example: Export path= $PATH: $HOME/tools/mspgcc-20120406-p20120911/bin You can compile a simple program to test, for example: #include Makefile is: LED.ELF:MAIN.C msp430-gcc.exe-os-mmcu=msp430f149-o led.elf main.c clean : rm led.elf

This section provides sample code for the msp430f5438a SPI Read and write SD card, using the official library msp430_driverlib_2_60_00_02, using IAR for msp430 6.3 by compiling. This section of the code does not differentiate the SD card, so only the SDHC card is operated, and the program is verified to work properly on the Kingston 8GB SDHC microSD card. sdhc.h #ifndef _sdhc_h_ #define _SDHC_H_ #define SDHC_INIT_CLK 125000 #define SDHC_HIGH_CLK 312

STC12C5A60S2 51 microcontroller minimum system,STC12C5A60S2 1. Connect the physical circuit according to the chip documents. Minimum system:Circuit Diagram 2. Install the driver according to the usb downloader1. first, plug the usb downloader into the computer, View computer device management, view the occupied com port if the device is not identified, you need to install the usb driver 2. install the keil compiler 1>. create a new project, create a

, data code, and data anti-code. When the remote control sends code, the system always goes low. High is behind. According to the analysis in Figure 2, the height of the Guide code is 4.5 ms, and the low level is 4.5 ms. WhenWhen this code is received, it indicates the beginning of a frame of data. The microcontroller can prepare to receive the following data. The address code consists of 8-bit binary codes, 256 in total. In the figure, the address co

In a recent project, I learned about the external Ram Extension of the AVR microcontroller, which is recorded here. In this paper, we use a single-chip microcomputer with a single-chip microcomputer as the testing platform and expanded 74hc573 (AHC series are used in the data section. However, I used the HC series to configure the fastest access speed under the 16 m crystal oscillator and did not find anything wrong, of course this is not a rigorous d

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

] = 0x55 Movwf TMP; [TMP] = [w] = 0x55 Addlw W register and 8-bit immediate addition Syntax: addlw K Operand: K is an 8-digit immediate number. Execution time: one instruction cycle Execution Process: [w] + k → W Status flag impact: Z DC C Note: The w register value and the 8-bit immediate number are added, and the result is placed in the W register. Command example: Movlw 0xaa; W = 0xaa Addlw 0x11; W = 0xaa + 0x11 = 0xbb Sublw immediate count minus W register Syntax: sublw K Operand: K is an 8-

This article describes in detail how to migrate the NFC Reader library to the Kinetis k64f microcontroller. This article uses a real-world porting case to demonstrate the steps required to migrate the NFC Reader library to the sample target MCU. The purpose of this article is to serve as a guide for software developers to transplant the NFC Reader library into the MCU chosen by their design. NFC Reader Library Overview The NFC Reader Library is a se

This was originally a question I did in my junior year. It was an out-of-class exercise. In the single-chip microcomputer course, an experiment is to control the digital display of a clock. The program logic is very simple and can be expressed by

# Include typedef unsigned char uchar; typedef unsigned int uint; # define rs_h PORTC | = 0x01 # define rs_l PORTC & = 0xfe # define rw_h PORTC | = 0x02 # define rw_l PORTC & = 0xfd # define en_h PORTC | = 0x04 # define en_l PORTC & = 0xfb # define

# Include "typedef. H"# Include "digitaltube. H"# Include "interrupt. H" Sbit led0 = P0 ^ 0; // set bandwidth limit to µ¥ bandwidth limit» úµäp0 limit to μäµúbandwidth bandwidth»Sbit led1 = P0 ^ 1; // é ù ã µ {µ¥ {}» úµäp0 ~úµäµú?¶ þ î»Sbit led = P0;

Use the timer of the STC single-chip microcomputer to perform a scheduled task of 1 second, 1 minute, and 1 hour. Because I use 11.0592 crystals, the time is not very accurate. If you have precise timing requirements, use a m crystal oscillator. The

The size of my color screen is 240*320 ~The following code is used: //common.h#ifndef __COMMON_H__#define __COMMON_H__#include #include typedef unsigned int uint;typedef unsigned char uchar;#endif// !__COMMON_H__ // Touchpad. C # DEFINE _ touchpad_c

Mspfet tool download (English version) Mspfet tool download (Chinese Version) The downloaded TXT file is in the format of 430. First, write the program according to the normal use of IAR, and then use IAR to compile and generate the TXT file. to