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msp430g2553ѧϰ±Ê¼Ç

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  • 3 ´ÎÏÂÔØ
  • 2026/4/27 10:53:48

for(i=0;i<255;i++) {

write_dac(i); }

for(i=255;i>0;i--) {

write_dac(i); } }

void square() //²úÉú·½²¨º¯Êý {

write_dac(0xff);

delay_us(500);

write_dac(0x00);

delay_us(500); }

void sin() //ÕýÏÒ²¨·¢Éúº¯Êý {

uchar i;

for(i=0;i<255;i++)

{

write_dac(sin_a[i]); } }

void step() //½×Ìݲ¨·¢Éúº¯Êý {

write_dac(0xff);

delay_us(500);

write_dac(0xc0);

delay_us(500);

write_dac(0x7f);

delay_us(500);

write_dac(0x3f);

delay_us(500);

write_dac(0x00);

delay_us(500); }

void main(void) {

WDTCTL = WDTPW + WDTHOLD;

uchar s1[] ={\ wave_shaper \

// Stop WDT

uchar s2[] ={\

uchar s3[] ={\

uchar s4[] ={\

BCSCTL1 = CALBC1_12MHZ; //É趨CPUʱÖÓDCOƵÂÊΪ12MHz

DCOCTL = CALDCO_12MHZ;

P2DIR |=BIT3+BIT4; //Òº¾§µÄÁ½ÌõÏß

P1DIR = 0xff; //0832µÄÊý¾Ýλ

P2DIR |= BIT6+BIT7; //°ÑP26ºÍP27ÅäÖÃΪÆÕͨIO ²¢ÎªÊä³ö½Å ĬÈÏΪ¾§ÕñµÄÊäÈëºÍÊä³öÒý½Å×÷Ϊdac0832µÄ

P2SEL &= ~(BIT6+BIT7); //csºÍwr¿ØÖƶË

P2SEL2 &= ~(BIT6+BIT7);

init_lcd(); //³õʼ»¯LCD

IO_interrupt_init();

wr_string(0,0,s1); //µÚÒ»ÐеÚÒ»¸öλÖÃÏÔʾs1

wr_string(0,1,s2); //µÚ¶þÐеÚÒ»¸öλÖÃÏÔʾs2

wr_string(0,2,s3); //µÚÈýÐеÚÒ»¸öλÖÃÏÔʾs3

wr_string(0,3,s4); //µÚËÄÐеÚÒ»¸öλÖÃÏÔʾs4

wr_int(2,3,key); //ÏÔʾ°´¼ü°´Ï´ÎÊý

wr_string(5,3,s_step);

_EINT(); //enable interrupt

for(;;)

{

if(key==13)

{

sin();

}

else if(key==14)

{

square();

}

else if(key==15)

{

triangular();

}

else if(key==16)

{

saw();

}

else

ËÑË÷¸ü¶à¹ØÓÚ£º msp430g2553ѧϰ±Ê¼Ç µÄÎĵµ
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for(i=0;i<255;i++) { write_dac(i); } for(i=255;i>0;i--) { write_dac(i); } } void square() //²úÉú·½²¨º¯Êý { write_dac(0xff); delay_us(500); write_dac(0x00); delay_us(500); } void sin() //ÕýÏÒ²¨·¢Éúº¯Êý { uchar i; for(i=0;i<255;i++) { write_dac(sin_a[i]); } } void step() //½×

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