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谁能告诉我msp430怎么做波形发生器?

亲爱的学徒 2015-07-16 浏览量：1230
#include
#define uint unsigned int
#define uchar unsigned char
uint i,j,k,n;
uchar md;

const uchar sin[]=
{
0x80,0x82,0x84,0x86,0x88,0x8a,0x8c,0x8e,
0x90,0x92,0x94,0x96,0x98,0x9a,0x9c,0x9e,
0xa0,0xa2,0xa4,0xa6,0xa8,0xaa,0xab,0xad,
0xaf,0xb1,0xb2,0xb4,0xb6,0xb7,0xb9,0xba,
0xbc,0xbd,0xbf,0xc0,0xc1,0xc3,0xc4,0xc5,
0xc6,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,
0xce,0xcf,0xd0,0xd1,0xd1,0xd2,0xd2,0xd3,
0xd3,0xd3,0xd2,0xd2,0xd1,0xd1,0xd0,0xcf,
0xce,0xce,0xcd,0xcc,0xcb,0xca,0xc9,0xc8,
0xc6,0xc5,0xc4,0xc3,0xc1,0xc0,0xbf,0xbd,
0xbc,0xba,0xb9,0xb7,0xb6,0xb4,0xb2,0xb1,
0xaf,0xad,0xab,0xaa,0xa8,0xa6,0xa4,0xa2,
0xa0,0x9e,0x9c,0x9a,0x98,0x96,0x94,0x92,
0x90,0x8e,0x8c,0x8a,0x88,0x86,0x84,0x82,
0x80,0x7d,0x7b,0x79,0x77,0x75,0x73,0x71,
0x6f,0x6d,0x6b,0x69,0x67,0x65,0x63,0x61,
0x5f,0x5d,0x5b,0x59,0x57,0x55,0x54,0x52,
0x50,0x4e,0x4d,0x4b,0x49,0x48,0x46,0x45,
0x43,0x42,0x40,0x3f,0x3e,0x3c,0x3b,0x3a,
0x39,0x37,0x36,0x35,0x34,0x33,0x32,0x31,
0x31,0x30,0x2f,0x2e,0x2e,0x2d,0x2d,0x2c,
0x2c,0x2b,0x2b,0x2b,0x2b,0x2a,0x2a,0x2a,
0x2a,0x2a,0x2a,0x2a,0x2b,0x2b,0x2b,0x2b,
0x2c,0x2c,0x2d,0x2d,0x2e,0x2e,0x2f,0x30,
0x31,0x31,0x32,0x33,0x34,0x35,0x36,0x37,
0x39,0x3a,0x3b,0x3c,0x3e,0x3f,0x40,0x42,
0x43,0x45,0x46,0x48,0x49,0x4b,0x4d,0x4e,
0x50,0x52,0x54,0x55,0x57,0x59,0x5b,0x5d,
0x5f,0x61,0x63,0x65,0x67,0x69,0x6b,0x6d,
0x6f,0x71,0x73,0x75,0x77,0x79,0x7b,0x7d,
};
const uchar jc[]=
{
0x00,0x02,0x04,0x06,0x08,0x0a,0x0c,0x0e,
0x10,0x12,0x14,0x16,0x18,0x1a,0x1c,0x1e,
0x20,0x22,0x24,0x26,0x28,0x2a,0x2c,0x2e,
0x30,0x32,0x34,0x36,0x38,0x3a,0x3c,0x3e,
0x40,0x42,0x44,0x46,0x48,0x4a,0x4c,0x4e,
0x50,0x52,0x54,0x56,0x58,0x5a,0x5c,0x5e,
0x60,0x62,0x64,0x66,0x68,0x6a,0x6c,0x6e,
0x70,0x72,0x74,0x76,0x78,0x7a,0x7c,0x7e,
0x80,0x82,0x84,0x86,0x88,0x8a,0x8c,0x8e,
0x90,0x92,0x94,0x96,0x98,0x9a,0x9c,0x9e,
0xa0,0xa2,0xa4,0xa6,0xa8,0xaa,0xac,0xae,
0xb0,0xb2,0xb4,0xb6,0xb8,0xba,0xbc,0xbe,
0xc0,0xc2,0xc4,0xc6,0xc8,0xca,0xcc,0xce,
0xd0,0xd2,0xd4,0xd6,0xd8,0xda,0xdc,0xde,
0xe0,0xe2,0xe4,0xe6,0xe8,0xea,0xec,0xee,
0xf0,0xf2,0xf4,0xf6,0xf8,0xfa,0xfc,0xfe
};
const uchar sj[]=
{
0x00,0x02,0x04,0x06,0x08,0x0a,0x0c,0x0e,
0x10,0x12,0x14,0x16,0x18,0x1a,0x1c,0x1e,
0x20,0x22,0x24,0x26,0x28,0x2a,0x2c,0x2e,
0x30,0x32,0x34,0x36,0x38,0x3a,0x3c,0x3e,
0x40,0x42,0x44,0x46,0x48,0x4a,0x4c,0x4e,
0x50,0x52,0x54,0x56,0x58,0x5a,0x5c,0x5e,
0x60,0x62,0x64,0x66,0x68,0x6a,0x6c,0x6e,
0x70,0x72,0x74,0x76,0x78,0x7a,0x7c,0x7e,
0x80,0x82,0x84,0x86,0x88,0x8a,0x8c,0x8e,
0x90,0x92,0x94,0x96,0x98,0x9a,0x9c,0x9e,
0xa0,0xa2,0xa4,0xa6,0xa8,0xaa,0xac,0xae,
0xb0,0xb2,0xb4,0xb6,0xb8,0xba,0xbc,0xbe,
0xc0,0xc2,0xc4,0xc6,0xc8,0xca,0xcc,0xce,
0xd0,0xd2,0xd4,0xd6,0xd8,0xda,0xdc,0xde,
0xe0,0xe2,0xe4,0xe6,0xe8,0xea,0xec,0xee,
0xf0,0xf2,0xf4,0xf6,0xf8,0xfa,0xfc,0xfe,

0xfe,0xfc,0xfa,0xf8,0xf6,0xf4,0xf2,0xf0,
0xee,0xec,0xea,0xe8,0xe6,0xe4,0xe2,0xe0,
0xde,0xdc,0xda,0xd8,0xd6,0xd4,0xd2,0xd0,
0xce,0xcc,0xca,0xc8,0xc6,0xc4,0xc2,0xc0,
0xbe,0xbc,0xba,0xb8,0xb6,0xb4,0xb2,0xb0,
0xae,0xac,0xaa,0xa8,0xa6,0xa4,0xa2,0xa0,
0x9e,0x9c,0x9a,0x98,0x96,0x94,0x92,0x90,
0x8e,0x8c,0x8a,0x88,0x86,0x84,0x82,0x80,
0x7e,0x7c,0x7a,0x78,0x76,0x74,0x72,0x70,
0x6e,0x6c,0x6a,0x68,0x66,0x64,0x62,0x60,
0x5e,0x5c,0x5a,0x58,0x56,0x54,0x52,0x50,
0x4e,0x4c,0x4a,0x48,0x46,0x44,0x42,0x40,
0x3e,0x3c,0x3a,0x38,0x36,0x34,0x32,0x30,
0x2e,0x2c,0x2a,0x28,0x26,0x24,0x22,0x20,
0x1e,0x1c,0x1a,0x18,0x16,0x14,0x12,0x10,
0x0e,0x0c,0x0a,0x08,0x06,0x04,0x02,0x00
};
const uchar fb[]=
{
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00
};


void delay(void)
{
    uint tmp; 
    for(tmp = 10000;tmp > 0;tmp--); 

}
#pragma vector=PORT1_VECTOR
__interrupt void  P1_IRQ(void)
{
   if(P1IFG&BIT4)   //第1个按键被按下 
      {
        
       delay();
       
       if(P1IFG&BIT4)
       {
         while((P1IN&BIT4)==0 );       //等待按键放开
           md=0X10;
           P1IFG =0x00;
       }   
      } 
  if(P1IFG&BIT5)   //第2个按键被按下 
      {
        
       delay();
       
       if(P1IFG&BIT5)
       {
         while((P1IN&BIT5)==0 );       //等待按键放开
           md=0x20;
           P1IFG =0x00;
       }   
      }
   if(P1IFG&BIT6)   //第3个按键被按下 
      {
        
       delay();
       
       if(P1IFG&BIT6)
       {
         while((P1IN&BIT6)==0 );       //等待按键放开
       md=0X40;
       P1IFG =0x00;
     
       }   
      } 
   
if(P1IFG&BIT7)   //第4个按键被按下 
      {
        
       delay();
       
       if(P1IN&BIT7)
       {
         while((P1IN&BIT7)==0 );       //等待按键放开
         md=0X80;
          P1IFG =0x00;
       }   
      } 
}
void key_init( void )
{   
    P1DIR=0x00; //输入
    P1OUT=0X0F;
    P1IES=0xf0;               // 选择下降沿中断
    P1IE=0xf0;                // 打开中断使能
    P1IFG=0x00;             //中断标志位清零         

}
int main()
{
  
  WDTCTL=WDTPW+WDTHOLD;  
    P2DIR=0XFF;
    P6DIR=0XFF;
    P6OUT=0XFF;
    key_init();
  while(1)
  {
    _EINT();
     switch(md)
            {
               case 0x10:P6OUT=0XFE;for(i=0;i<240;i++)  P2OUT=sin[i];break;
               case 0x20:P6OUT=0XFD;for(j=0;j<128;j++)  P2OUT=jc[j];break;
               case 0x40:P6OUT=0XFB;for(k=0;k<256;k++)  P2OUT=sj[k];break;
               case 0x80:P6OUT=0XF7;for(n=0;n<256;n++)  P2OUT=fb[n];break;
               default:break;
            }
  }
}
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  • 可以参考一下《基于MSP430G2553的简易信号发生器》


  • 内部写状态，产生波形rom表

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