單片機控制之信號發(fā)生器振蕩器設(shè)計單片機技術(shù)課程設(shè)計-文庫吧在線文庫
【正文】 PTR，A 輸出一段時間 正弦波程序流程圖正弦波的實現(xiàn)則相對比較復(fù)雜，因為正弦波的實現(xiàn)是輸出各個點的值就行了，可是各個點值則要通過正弦函數(shù)來求出，不過這些值直接去網(wǎng)上下載下來使用就可以了。sbit d2=P0^2。for(x=z。LED3=0。 unsigned char sin(unsigned char x){unsigned char code sin_tab[]={125,128,131,134,138,141,144,147,150,153,156,159, 162,165,168,171,174,177,180,182,185,188,191,193,196,198,201,203, 206,208,211,213,215,217,219,221,223,225,227,229,231,232,234,235, 237,238,239,241,242,243,244,245,246,246,247,248,248,249,249,250, 250,250,250,250,250,250,250,249,249,248,248,247,246,246,245,244, 243,242,241,239,238,237,235,234,232,231,229,227,225,223,221,219, 217,215,213,211,208,206,203,201,198,196,193,191,188,185,182,180, 177,174,171,168,165,162,159,156,153,150,147,144,141,138,134,131, 128,125,122,119,116,112,109,106,103,100,97,94,91,88,85,82,79,76,73, 70,68,65,62,59,57,54,52,49,47,44,42,39,37,35,33,31,29,27,25,27,29,27,25,23,21, 19,18,16,15,13,12,11,9,8,7,6,5,4,4,3,2,2,1,1,0,0,0,0,0,0,0,0,1,1,2, 2,3,4,4,5,6,7,8,9,11,12,13,15,16,18,19,21,23,25,27,29,31,33,35,37, 39,42,44,47,49,52,54,57,59,62,65,68,70,73,76,79,82,85,88,97,94,97, 100,103,106,109,112,116,119,122}。} if(d2==0){ //delay(5)。TMOD=0X02。TR0=1。 switch(flag) //當(dāng)按鍵1的為輸出三角波，按鍵2時輸出正弦波 { case 0AC0832(0)。 } } }}void time0() interrupt 1{ time=1。一方面通過C51單片機等一些器件的設(shè)計讓我學(xué)習(xí)和掌握了單片機技術(shù)的基礎(chǔ)知識和技術(shù)要點，也使以前學(xué)的很多知識都得到了運用；另一方面在用Proteu
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