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ID:64538 · 發表于 2014-7-29 16:37

有哪位大蝦幫我這個新手編一下面的程序，小弟感覺不盡。
要求：1用msp430g2553.h實現。
2實現如下功能，每十秒鐘燈光閃爍一次，每2秒燈光亮度變化一次，按鍵按一次延時時間增加5秒燈光亮度變化相反。

ID:66032 · 發表于 2014-9-16 15:46

我用我的MSP430F5438A寫了個程序，運行了下完全OK，用示波器可以看到占空比的連續變化
//this is source code using MSP430F5438A, the Aclock is using XT1=32.768K, the will help to get second counts

#include <msp430.h>
#include <stdlib.h>
#include <stdio.h>

#define uchar unsigned char
#define uint unsigned int

uchar num1, num2, num3, num4;
uint count,count1,temp=0;
uchar const table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
uchar const table1[]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10};

void Init_Port(void)
{

  P7DIR  |= Ox01  ; // set the P7.0 as output;
//  P7OUT  &= ~0x01 ;// turn on the LED;
  //INTERNAL_PULL_UP    ;
// ROW_IN_COL_OUT       ;
  P1OUT = 0xF0          ;
  P1DIR = 0xF0       ;
  P6DIR &=~0x01;
  P6REN |= 0x01;
  P6OUT = 0x01;
  P9OUT = 0x0F       ;
  P9DIR = 0x0F    ;
  P8DIR = 0xFF;
  P8OUT = 0xFF;

}

void Display(num1,num2,num3,num4)
{

P8OUT = table[num1];
P9OUT &= ~BIT0;
__delay_cycles(100);
P9OUT |= BIT0;

P8OUT = table[num2];
P9OUT &= ~BIT1;
__delay_cycles(100);
P9OUT |= BIT1;

P8OUT = table[num3];
P9OUT &= ~BIT2;
__delay_cycles(100);
P9OUT |= BIT2;

P8OUT = table[num4];
P9OUT &= ~BIT3;
__delay_cycles(100);
P9OUT |= BIT3;

}
int main(void)
{
  WDTCTL = WDTPW + WDTHOLD;                // Stop WDT
  Init_Port();
  P1DIR |= 0x30;    // just to check waveform P2.2&P2.3 O/P using scope
  P1SEL |= 0x30;    // P2.2 and P2.3 options select
  TA0CCR0 = 512-1;                         // PWM Period
  TA0CCTL3 = OUTMOD_7;                   // CCR1 reset/set
  TA0CCR3 = 384;                         // CCR1 PWM duty cycle
  TA0CCTL4 = OUTMOD_7;                   // CCR2 reset/set
  TA0CCR4 = 128;                         // CCR2 PWM duty cycle
  TA0CTL = TASSEL_1 + MC_1 + TACLR;       // SMCLK, up mode, clear TAR

  TA1CCTL0 = CCIE;                         // CCR0 interrupt enabled
  TA1CCR0 = 32768-1;
  TA1CTL = TASSEL_1 + MC_1 + TACLR;       // ACLK, upmode, clear TAR

  //TBCCTL0 = CCIE;                         // TBCCR0 interrupt enabled
  //TBCCR0 = 30;
  //TBCTL = TBSSEL_1 + MC_1 + TBCLR;       // ACLK, upmode, clear TBR

  __bis_SR_register(GIE);    // Enter LPM0, enable interrupts

while(1)
  {
   TA0CCR4=temp;
   Display(num1,num2,num3,num4);// if LPM0 is enable, the routine will not be preformed;
   if (!(P6IN&0x01))
   {
      __delay_cycles(10);
   if (!(P6IN&0x01))
   {
         temp+=5;
         if (temp==512)
         temp=128;
         while(!(P6IN&0x01));
   }
   }
  }

}

// Timer1 A0 interrupt service routine
#pragma vector=TIMER1_A0_VECTOR
__interrupt void TIMER1_A0_ISR(void)
{
      count++;
      if(count==2)  //the light intensity increase 1every other 2sec
      {
      count=0;
      temp++;
      num1=temp/1000; //°ÑÕa¸ö±äá¿ÏÔê¾3öà′
      num2=temp%1000/100;
      num3=temp%100/10;
      num4=temp%10;
      if (temp==512)
      temp=0;
      }
      count1++;
      if (count1==10)
      {
      count1=0;
      P7OUT^=0x01; //Output LED flahes every other 10 sec;
      }
}

ID:66032 · 發表于 2014-9-16 15:48

下面是按照你的要求改寫的程序，我看了USER GUIDE 和 Datasheet 應該沒有問題
//this is source code using MSP430G2553, the Aclock is using XT=32.768K, the will help to get second counts ------- MSP430G2553, 28-Pin Devices, TSSOP

#include <msp430.h>
#include <stdlib.h>
#include <stdio.h>

#define uchar unsigned char
#define uint unsigned int

uint count,count1,temp=0;

void Init_Port(void)
{
  P1OUT = 0x01 ; // O/P to high level and connect switch to ground
  P1DIR  &=~0x01 ;// set input DIR;
  P1REN  |= 0x01;  //Enable P1.0 pull-up
  P3DIR |= 0x20;    // set the O/P as well as check waveform P3.5using scope
  P3SEL |= 0x20;    // P3.5 options select and connect LED to ground;
}


int main(void)
{
  WDTCTL = WDTPW + WDTHOLD;                // Stop WDT
  Init_Port();

  TA0CCR0 = 512-1;                         // PWM Period
  TA0CCTL1 = OUTMOD_7;                   // CCR1 reset/set
  TA0CCR1 = 0;                         // CCR1 PWM duty cycle
  TA0CTL = TASSEL_1 + MC_1 + TACLR;       // SMCLK, up mode, clear TAR
  TA1CCTL0 = CCIE;                         // CCR0 interrupt enabled
  TA1CCR0 = 32768-1;
  TA1CTL = TASSEL_1 + MC_1 + TACLR;       // ACLK, upmode, clear TAR
  __bis_SR_register(GIE);    // Enter LPM0, enable interrupts

while(1)
  {
   TA0CCR1=temp;

   if (!(P1IN&0x01))
   {
      __delay_cycles(10);
   if (!(P1IN&0x01))
   {
         temp+=5; //push the switch everytime, the intensity value add 5;
         if (temp==512)
         temp=0;
         while(!(P1IN&0x01));
   }
   }
  }

}

// Timer1 A0 interrupt service routine
#pragma vector=TIMER1_A0_VECTOR
__interrupt void TIMER1_A0_ISR(void)
{
      count++;
      if(count==2)  //the light intensity increase 1every other 2sec
      {
      count=0;
      temp++;
      if (temp==512)
      temp=0;
      }
      count1++;
      if (count1==10)
      {
      count1=0;
      P3OUT^=0x20; //Output LED flahes every other 10 sec;
      }
}

ID:66032 · 發表于 2014-9-16 15:52

任何code 都是根據硬件電路來編寫的，脫離了硬件，一切都是浮云。一定要下功夫讀英文的文件，只有這樣才能以不變應萬變。

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