求一款51系列的单片机，要求有3个或以上的定时器，自带AD功能，管脚20个的而不是贴片的
51\u5355\u7247\u673a\u5b9a\u65f6\u5668\u521d\u503c\u516c\u5f0f1.\u7b80\u5355\u8bf4\u8d77\uff0c256\u8868\u793a\u4e00\u4e2a8\u4f4d\u5206\u754c\u70b9\uff0c\u5bf9\u5b83\u6c42\u6a21\u5f97\u9ad8\u4f4d\u5b57\u8282\u5b58\u5728TH0\u4e2d\uff0c\u6c42\u4f59\u5f97\u4f4e\u4f4d\u5b57\u8282\u653e\u5728TL0\u4e2d\uff0c\u62ff\u5341\u8fdb\u5236\u6253\u6bd4\uff1a15/10\u5f97\u5341\u4f4d1\uff0c15%10\u5f97\u4e2a\u4f4d\u65705
2.12Mhz\u65f6\uff0c\u5355\u5468\u671f\u6307\u4ee4\u65f6\u95f4\u4e3a12/fsoc=1us
\u65b9\u5f0f1\u4e3a16\u4f4d\u5b9a\u65f6/\u8ba1\u6570\u5668
\u6545\u5b9a\u65f61ms\u4e3a\uff1aTH0=\uff082^16-1000\uff09/2^8\uff0c
TL0=\uff082^16-1000\uff09%256
\u5f53\u4e3a11.0592MHz\u65f6\uff0c\u5355\u5468\u671f\u6307\u4ee4\u65f6\u95f4\u4e3a12/fsoc=12/11.0592us
\u7531\u4e8e\u91c7\u7528\u65b9\u5f0f0\uff0c\u4e3a13\u4e3a\u5b9a\u65f6\u5668\uff0cTH0\u9ad88\u4f4d\u548cTL0\u7684\u4f4e5\u4f4d
\u6545\u5b9a\u65f61ms\u4e3a\uff1a
TH0=\uff082^13-1000/(12/11.0592)\uff09/2^5\uff0c
TL0=\uff082^16-1000/(12/11.0592)\uff09%2^5
\u8fd9\u4e48\u665a\u4e86 \u5199\u5199\u4e0d\u5bb9\u6613\uff0c\u591a\u7ed9\u4e9b\u5206\u4ee5\u6b64\u9f13\u52b1\u4ffa
O(\u2229_\u2229)O~
\u5047\u8bbe\u8981\u6c4250ms\u4e2d\u65ad\uff0c\u6c42\u5b9a\u65f6\u5668\u521d\u503c\u3002
\u6676\u632f11.0592M\uff0c\u6bcf\u4e2a\u673a\u5668\u5468\u671f\u65f6\u95f4\u4e3a\uff1at=12\u00d7\uff081/11.0592M\uff09 \u5355\u4f4d\uff1aus
50ms\u6240\u9700\u673a\u5668\u5468\u671f\u4e3a\uff1a50\u00d71000\u00f7t\uff1d46080
\u90a3\u4e48\u9700\u8981\u521d\u503c\u4e3a:
0xFFFF-46080=65535-46080=19456=0x4C00
\u56e0\u6b64\uff0c\u7f6e\u521d\u503c\u4e3aTH=0x4c,TL=0x00,\u7ecf\u8fc746080\u4e2a\u6307\u4ee4\u5468\u671f\uff0c\u8ba1\u6570\u5668\u5c06\u4ea7\u751f50ms\u5b9a\u65f6\u4e2d\u65ad\u3002
\u5982\u679c\u9700\u89811\u79d2
\u5219\u8fde\u7eed20\u6b21\u4e0a\u8ff0\u4e2d\u65ad\u5373\u53ef\u8fbe\u5230
S51等不自带AD吧，除非需用AVR单片机你这些功能都有。
STC12C5A60S2 淘宝单价在8元左右 60K ROM ,1280 SRAM ,AD 10位, 8路，定时器T0，T1少一个吧
PIC的话你这些要求的单片机就很好找了PIC16F系列基本都能带这些功能
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绛旓細STC12C2052 鎬诲叡20涓紩鑴 15涓狪O鍙ｏ紝8璺疉D锛2涓狿WN锛屼覆鍙ｏ紝SPI锛1T鏃堕挓鍛ㄦ湡锛屽唴缃櫠鎸紝渚涚數3.3鍜5V鍙夛紝绋嬪簭绌洪棿5K锛孯AM 256锛岄傚悎灏忓瀷鎺у埗寮鍙戝簲鐢
绛旓細include<reg51.h>#define uchar unsigned char#define uint unsigned intuchar ledtab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};uchar disdat[4]={10,10,10,10};uchar num=0;uchar min=0,sec=0;void datdeal(){disdat[0]=min/10;disdat[1]=min%10;dis...
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绛旓細鎴戜滑瀛︽牎閮界敤TI鍏徃鐨凪SP430,16浣嶇郴缁熺殑锛岀簿纭害姣旇緝楂橈紝瓒呬綆鍔熻
绛旓細鍦≒roteus杞欢涓惌寤轰簡涓涓熀浜51鍗曠墖鏈虹殑4*4閿洏鍜屼袱涓叡闃虫瀬涓冩鏄剧ず鍣ㄧ殑璁＄畻鍣ㄧ數璺紝瀹炵幇浜嗗熀鏈殑鍔犲噺涔橀櫎鍔熻兘銆傝鐢佃矾浣跨敤浜嗚蒋浠跺唴缃殑4X4鐭╅樀閿洏鍏冧欢锛屾瀬澶у湴绠鍖栦簡缂栫▼鍜岀數璺璁＄殑澶嶆潅鎬с備互涓嬩负璇ヨ绠楀櫒鐨勪豢鐪熺數璺浘銆
