ifg1

and crossover, baud rate generator, regulator and baud rate register. The following is a diagram of the baud rate generator: divide factor N is determined by the frequency of the clock (BRCLK) sent to the divider counter and the desired baud rate to determine the: n=brclk/baud rate divisor factor as defined below: n=ubr+ (m7+m6+m5+m4+m3+ M2+M1+M0)/8 Interrupt: The Usart module has received and sent two separate interrupt sources. Use two separate interrupt vectors, one for receiving interrupt t

Code One:1 /**********************************2 program function: Use the key to control the LED lights off3 ***********************************/4#include 5 6 voidint_clk ();7 voidMain ()8 {9Wdtctl = Wdtpw +Wdthold;Ten int_clk (); OneP1dir =0Xf0; AP1out =0Xff; -P6dir =0XFF; -P6out =0x00; the while(1) - { - Switch(P1in 0X0F) - { + Case 0x0e:P 6OUT =0XC0; Break; - Case 0x0d:P 6OUT =0X30; Break; + Case 0x0b:P 6OUT =0X0C; Break; A Case 0x07:P 6OUT =0X03; Break; at

lpm0 mode is exited.# Pragma vector = usart0rx_vector_ Interrupt void usart0_rx (void){Lpm0_exit;}//************************************** **************************************** ****// Adc12 InitializationVoid adc12setup (void){// Set adc12 **************************P6sel | = 0x01; // use A/D channel A0Adc12ctl0 = adc12on; // enable the adc12 kernel and set sht0 = 2 (n = 4)Adc12ctl1 = SHP; // select the sampcon signal as the sampling timer output.// Adc12 internal reference voltage settingsAd

reference.3. The system clock is the commander of a program running. Timing and interruption are also the core and central axis of the entire program. 430 has a maximum of three oscillator, dCO internal oscillator; lfxt1 external low frequency oscillator, common 32768Hz, without external load capacitor; can also be connected to high frequency 450 kHz-8 m, need to be connected to the load capacitor; xt2 is connected to high-frequency 450 kHz-8 m, and an external capacitor is added. (In experienc

Code One:/************************** function: Led flashes once every 1 seconds ****************************/#includevoidMain () {P6dir=0XFF; P6out=0x00; TACCR0=4095; TACCTL0=CCIE; Tactl= Tassel_1 + Id_3 +mc_1; _eint (); LPM3;}#pragmaVector=timera0_vector__interruptvoidTimer_a (void) {P6out^=0XFF;}Code two:1 /*********************************2 Program Flow:3 off watchdog--timing interrupt 10ms--> on total interrupt--Interrupt Set4 *********************************/5#include 6 7 intflag=0, time=

Code1 /***********************************2 program function: Control LED status with key3 Disadvantage: The button can not change the status of the LED after pressing, you may use the Reset button on the board ^~^4 *************************************/5#include 6 7 intK,i=0;8 voidint_clk ();9 voidLedintn);Ten voidMain () One { AWdtctl = Wdtpw +Wdthold; - int_clk (); -P1dir =0Xf0; theP1out =0XFF; -P6dir =0XFF; -P6out =0XFF; - + while(1) - { +P1out =0X0F; A if(p1in! =0X0F) at { -

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 = ~

{ +P6out ^=BIT0; A while((IFG1 UTXIFG0) = =0); the if(U0rxbuf = =slv_data) + { -Slv_data = Slv_data-1; $Mst_data = Mst_data +1; $U0txbuf =Mst_data; - } - Else theTXBUF0 =Mst_data; -}Code two:1#include 2 CharMst_data =0x00, Slv_data =0xFF;3 voidMain ()4 {5Wdtctl = Wdtpw +Wdthold;6P3sel =0X0E;7Uoctl = CHAR + SYNC +Swrst;8U0tctl = CKPL + SSEL1 +STC;9U0CLT = ~ckph;Ten OneME1 |=USPIE0; AU0ctl = ~Swrst; -IE1 |=URXIE0; - _eint (); the whil

Code One:1#include 2 intFlag =0;3 voidINT_CLK ()4 {5BCSCTL1 = ~Xt2off;6BCSCTL2 |= selm_2 +SELS;7 Do8 {9IFG1 = ~OFIFG;Ten for(intI=0;i -; i++) One _nop (); A} while((IFG1 OFIFG)! =0); -IFG1 = ~OFIFG; - } the - voidInt_comparatora () - { -P2sel |= BIT3 + BIT4;//p2.3,p2.4 as output and input of comparator respectively +P2dir |= BIT3;//P2.3 as Output - +CACTL1 = ~Caex; ACACTL1 |= Carsel + caref_2

; SCI downstream data is transmitted from the master processor to the Neuron chip. 2.2 consumer StackSoftware Implementation Use the provided Neuron C template for case modification. It mainly modifies the statements related to the MSP430F149 processor in ldvsci. h and ldvsci. c. In ldvsci. h, modify it: # Define ENABLE_RX_TX () (ME1 | = UTXE0 + URXE0) # Define enable_tx_isr () (ie1 | = 0x80) # Define enable_tx_complete_isr () (ifg1 | = 0x80) // usart

, and stop bit can be controlled by the internal registers of the single chip microcomputer. Both Single Chip Microcomputer have two usart modules and two sets of independent register groups; when the following register hits, X indicates 0 or 1, 0 indicates the register corresponding to the 0 module, and 1 indicates the register corresponding to the 1 module. Among them, the control bits related to the serial port Mode settings are located in the uxctl register, the receiving-related control bit

First notice a few questions:1,SPI Communication, the timing (phase, polarity) of both sides must be the same (see SPI four timing settings)2, the host sets the clock, the slave does not need to set the clock.3, clock on the pin, when there is data transmission, only the clock, no data transmission, there is no clockTest the following program on the msp430f149 successful experiment, for two board communicationHost:(SPI. C#include #define Uspi3on P3sel |= 0X0E#define Uspi4on P3sel |= 0X0FChar txf

#include /* For UART0 serial port configuration, and Operation function Description *//* First, UART0 initialization */ voidUart0_idev_init (void) {P3sel |= BIT4 + BIT5;//1. Select P3.4 and P3.5 to do UART0 communication portME1 |= UTXE0 + URXE0;//2. Enable USART0 to be sent and acceptedUCTL0 |= CHAR;//3. Select 8-bit charactersUTCTL0 |= SSEL0;//4. Select Clock Source, Aclk:ssel0 //Smclk:ssel1UBR00 =0x03;//5. Baud Rate 32767hz:9600UBR10 =0x00;//UMCTL0 =0x4A;//M

//: Playground-noun:a Place where people can playImport UIKit//protocol---in the--swift standard library////1. Example comparison: Determine whether two instance values are the sameLet A =4, B =4a= = B//(comparison of type int)//custom struct type, compare for equalitystructGames {var wincount:int var losecount:int}let G1= Games (Wincount:2, Losecount:1) Let G2= Games (Wincount:2, Losecount:1)//G1 = = G2//custom types Determine whether equality is required to comply with the protocol equatableex

Code One:1 /*******************************2 program function: Aclk=32768hz3 PWM wave t=512/32768 duty ratio 75%4 *********************************/5 6#include 7 voidMain ()8 {9Wdtctl = Wdtpw +Wdthold;TenTactl = Tassel_1 +taclr; One ACCTL0 =0x00; -CCTL1 =0x00; - theCCR0 = +-1;//t=512/32768 -CCTL1 =outmod_7; -CCR1 =384;//384/512=0.75 -CCTL2 =outmod_7; + //CCR2 = 124; - +P1dir |=bit2;k AP1sel |=BIT2; atP2dir |=BIT0; -P2sel |=BIT0; - -Tactl |=mc_1; -}Code two:1#include 2 voidINT_CLK (

");return;}Sleep (3);printf ("FD =%d\n", FD);printf ("FD1 =%d\n", fd1);/* for (i=0;i{Nread = Write (fd,buff,8);printf ("Nread =%d,%s\n", nread,buff);Sleep (1);}*/while (1){Sleep (1);Nread=read (fd1,buff,1);if (nread! = 0){Nwrite = Write (fd,buff,1);if (nwrite! = nread){Perror ("error!!!!!!!!!!!");return;}}}Close (FD);Close (FD1);return;}2.430 single-chip microcomputer receives information via UART, on the code#include char i;int main (void){Stop watchdog timer to prevent time out resetWdtctl = W

when the ENC is low, and you will be reset during por)Each conversion memory has a corresponding conversion memory control register. Therefore, when csstartadd is used to convert the memory address bit, adc12mctlx is also determined. The Register has the following meanings:Bit7 bit6 ~ 4 bit3 ~ 0EOS sref inchEOS-sequence end control bit0: The sequence has not ended.1: The last conversion in the sequenceSref-reference voltage source selection bit0: vr + = avcc, VR-= AVSS1: vr + = vref +, VR-= AVS