温度显示程序

1、1./*2.温度显示程序3.程序最后修改于：2004年2月29日21:204.*/5.6./*头文件说明*/7.#include <REG52.H>8.#include <STDIO.H>9.#include <INTRINS.H>.nop_()10.#include <ABSACC.H>/ XBYTE11.#include <DATASTRUCT1.H>12.13.#define uchar unsigned char14.#define uint unsigned int15.16.#define N 1017./#define

2、TMAX 10018./#define TMIN 019.#define Umax 0x7fff20.#define Uf0x800021.#define a11.114e-1222.#define a2-3.8071e-823.#define a30.002385724.#define a40.09213925.CPU引脚定义*/26./t6963 引脚分配27.#define CWADD XBYTE0x8100/写指令代码地址28.#define DWADD XBYTE0x8000/写数据通道地址29./MAX1169引脚分配30.sbitSCL = P1A0;/定义串行时钟线所在口使用时

3、根据自己的需要来定义31.sbitSDA=P1A1;/定义串行数据线所在口使用时根据自己的需要来定义32./MAX5541引脚分配33.sbitSCLK=P1A3;/定义串行时钟线所在口使用时根据自己的需要来定义34.sbit DIN = P1A4;/定义串行数据线所在口使用时根据自己的需要来定义35.sbit DA_CS= P1A5;/MAX5541 片选端36.37.38./*全局变量定义*/39.uchar SystemError;40.uint counter;/中断次数41.float temp_data;42. floats;43. uint yk;44. signed int e

4、k;45.46.47. /* 功能子程序段*/48. /*49. ;定时器中断服务子程序50. */51. /定时器计数初值为5000052. /定时100ms ,中断30次53. timer0() interrupt 1using 154. 55. counter+;56. TH0 = -100000/256;57. TL0 = -100000%256;58. 59.60. /*61. ;t696362. */63. / 液晶显示器地址：p27-CS P26-C/D WR-WR RD-RD则64. /00 00 0000 0000 0000(数据通道)65. /01 00 0000 0000

5、 0000(指令通道)66. /;67. /g6963.c-图形方式下的汉字、字符显示程序68.69. void sta01( void )/ 判断状态位70. 71. while (CWADD&3)!=3);72.73. 74.75. void sta3( void )76. 77.78. while (CWADD&8)!=8);79.80. 81.82.83. /写指令和写数据子程序84.85.void writecode(unsignedchar com)/写无参数指令86.87.sta01();88.CWADD=com;89.90.void write1byte(uns

6、ignedchar dat1,unsignedcharcom)/写单字节参数指令91.92.sta01();93.DWADD=dat1;94.sta01();95.CWADD=com;96.97.98.void write2byte(unsignedchar dat1,unsignedchardat2,unsignedchar com)99./写双字节参数指令100.101.sta01();102.DWADD=dat1;103.104.sta01();105.DWADD=dat2;106.107.sta01();108.CWADD=com;109.110.111.112.void disp_i

7、ni(void )/显示屏初始化子程序113.114.write2byte(0x00,0x00,0x40);/设置显示区域首地址0000h115.write2byte(0x10,0x00,0x41);/设置文本显示的宽度,即一行所占的字节数（12864t,16个8X8点阵字符）116.write2byte(0x00,0x08,0x42);/设置图形显示区域首地址0800h ,或为文本属性区域首地117.write2byte(0x10,0x00,0x43);个8x8点阵字符)/设置图形显示区域宽度，或为文本属性区域宽度（12864t,16118.119.writecode(0xa7);/120.

8、writecode(0x9c);/121.writecode(0x80);/122.123.光标形状设置显示开关设置，gt all on!显示方式设置，逻辑或合成124.125.126.127.128.129.130.131.132.133.134.135.136.137.138.139.140.141.142.143.144.145.146.147.148.149.150.151.152.153.154.155.156.157.158.159.160.161.162.163.164.165.166.void clearram( void )unsigned int i;write2byte(

9、0x00,0x00,0x24);writecode(0xb0);for (i=8192;i>0;i-)sta3();DWADD=0;writecode(0xb2);/清屏程序/设置显示ram 首地址0000h/设置自动写方式/往显示区域写0；区域大小8k/关闭自动写指令/*汉字点阵，存储在程序存储器中点阵：16x16提取点阵方向：横向（先上-> 下，再左-> 右）字节掉转：否字节方式：C语言*/unsigned char code wen32=0x00,0x43,0x32,0x12,0x83,0x62,0x22,0x0B,/ 温0x10,0x27,0xE4,0x24,0x24

10、,0x24,0x2F,0x20,0x08,0xFC,0x08,0x08,0xF8,0x08,0x08,0xF8,0x00,0xFC,0xA4,0xA4,0xA4,0xA4,0xFE,0x00;unsigned char code du32=0x01,0x00,0x3F,0x22,0x22,0x3F,0x22,0x23,/ 度0x20,0x2F,0x22,0x21,0x20,0x43,0x8C,0x30,0x00,0x84,0xFE,0x20,0x28,0xFC,0x20,0xE0,0x00,0xF0,0x20,0x40,0x80,0x60,0x1E,0x04;unsigned char cod

11、e wei32=0x00,0x10,0x0C,0x04,0x00,0xFF,0x01,0x01,/ 为0x02,0x02,0x04,0x08,0x10,0x20,0x40,0x00,0x80,0x80,0x80,0x80,0x84,0xFE,0x04,0x04,167. 0x04,0x84,0x64,0x24,0x04,0x04,0x28,0x10;168.169. unsigned char code clearchar16 = / 擦除一个字符170. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,171. 0x00,0x00,0x00,0x00,0x00

12、,0x00,0x00,0x00,172. ;173.174. unsigned char code dot16=175. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,176. 0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00177. ;178.179. /本文件为8X16点阵西文字库文件，字的横向8点构成一字节，左边点在字节的高位，字符点阵四角按左上 角上角送下角下角取字*/180. /*0 */181. unsigned char code ch016=182. 0x00,0x00,0x7C,0xC6,0xC6,0xCE,0x

13、D6,0xD6,183. 0xE6,0xC6,0xC6,0x7C,0x00,0x00,0x00,0x00;184.185. /*1 */186. unsigned char code ch116=187. 0x00,0x00,0x18,0x38,0x78,0x18,0x18,0x18,188. 0x18,0x18,0x18,0x7E,0x00,0x00,0x00,0x00;189.190. /*2 */191. unsigned char code ch216=192. 0x00,0x00,0x7C,0xC6,0x06,0x0C,0x18,0x30,193. 0x60,0xC0,0xC6,0x

14、FE,0x00,0x00,0x00,0x00;194.195. /*3 */196. unsigned char code ch316=197. 0x00,0x00,0x7C,0xC6,0x06,0x06,0x3C,0x06,198. 0x06,0x06,0xC6,0x7C,0x00,0x00,0x00,0x00;199.200. /*4 */201. unsigned char code ch416=202. 0x00,0x00,0x0C,0x1C,0x3C,0x6C,0xCC,0xFE,203. 0x0C,0x0C,0x0C,0x1E,0x00,0x00,0x00,0x00;204.205

15、. /*5 */206. unsigned char code ch516=207. 0x00,0x00,0xFE,0xC0,0xC0,0xC0,0xFC,0x0E,208. 0x06,0x06,0xC6,0x7C,0x00,0x00,0x00,0x00;209.210. /*6 */211. unsigned char codech616=212. 0x00,0x00,0x38,0x60,0xC0,0xC0,0xFC,0xC6,213. 0xC6,0xC6,0xC6,0x7C,0x00,0x00,0x00,0x00;214.215. /*7 */216. unsigned char code

16、 ch716=217. 0x00,0x00,0xFE,0xC6,0x06,0x06,0x0C,0x18,218. 0x30,0x30,0x30,0x30,0x00,0x00,0x00,0x00;219.220. /*8 */221. unsigned char code ch816=222. 0x00,0x00,0x7C,0xC6,0xC6,0xC6,0x7C,0xC6,223. 0xC6,0xC6,0xC6,0x7C,0x00,0x00,0x00,0x00;224.225. /*9 */226. unsigned char code ch916=227. 0x00,0x00,0x7C,0xC

17、6,0xC6,0xC6,0x7E,0x06,228. 0x06,0x06,0x0C,0x78,0x00,0x00,0x00,0x00229. ;230.231.232.233.234. void gshowword(unsigned char y,unsigned char x,unsigned char *w_no) / 图形方式下 显示一个汉字字符(分为左右两半字模)235. /128*64dots,x-显示在第x (015)字符列！，y-显示在第y (063 )点阵！行，w_no为tab代码236. /调用示例：gshowword(2,4,hao)在第二行第四列显示"好&quo

18、t;-gshowword(点阵行，字符列，数组首地址)237. unsignedint num;238. unsignedchar d1,d2,i=16;239. num=y*16+x+0x800;/16-每行显示宽度为16个字符;0 图形显示区首地址为0800h240.241.242.243.for (i=16;i>0;i-)244. d1=num/256;/得到显示屏上汉字显示的相对位置245.d2=num%256;246.write2byte(d2,d1,0x24);247.write1byte(*w_no,0xc0);/写汉字左代码248.write1byte(*(w_no+16

19、),0xc0);/写汉字右代码249.w_no+;250.251.252.253.254.255.256.257.258.num+=0x10;/显示ram地址修正void gshowchar(unsignedchar y,unsignedchar x,unsignedchar *w_no) / 图形方式下显示一个字符(分为左右两半字模)/128*64dots,x-显示在第x (015 )字符列！，y-显示在第y (063 )点阵！行，w_no为tab代码/调用示例：gshowword(2,4,hao)在第二点阵行第四字符列显示11好259.260.261.262.263.264.265.266

20、.267.268.269.270.271.272.273.274.275.276.277.278.279.unsignedint num;unsignedchar d1,d2,i=16;num=y*16+x+0x800;址为0800hfor (i=16;i>0;i-)d1=num/256;d2=num%256;write2byte(d2,d1,0x24);write1byte(*w_no,0xc0);/ write1byte(*(w_no+16),0xc0); / w_no+;num+=0x10;/ /void disp5ch(unsignedchar y,unsigned/16-每行显

21、示宽度为16个字符;0-图形显示区首地/得到显示屏上汉字显示的相对位置/写汉字左代码写汉字右代码/显示ram地址修正char x,unsignedlong var)280. 带灭零处理及小数点的五位数显示子程序(可显示0.00099.999) , var指要显示的数据281. uchard4,d3,d2,d1,d0;282. d4=var/10000;d3=(var%10000)/1000;d2=(var%1000)/100;d1=(var%1000)%100/10;d0=(var%1000)%100%10;283.284. if (d4=0) gshowchar(y,x,clearchar)

22、;285. else gshowchar(y,x,ch0+0x10*d4);/ 显示万位286.287. if (d4=0)&&(d3=0) gshowchar(y,x,clearchar);gshowchar(y,x+1,clearchar);288.else gshowchar(y,x+1,ch0+0x10*d3);/显示千位289.290.291.292.293.294.295.296.297.298.299.300.301.302.303.304.305.306.307.308.309.310.311.312.313.314.gshowchar(y,x+2,dot);g

23、showchar(y,x+3,ch0+0x10*d2);gshowchar(y,x+4,ch0+0x10*d1);gshowchar(y,x+5,ch0+0x10*d0);void disp()floatfilter。；double temptrans( float s = filter();temp_data = temptrans(s);disp_ini();clearram();gshowword(2,4,wen);gshowword(2,6,du);gshowword(2,8,wei);disp5ch(36,6,(unsignedx);long/显示小数点/显示百位/显示十位/显示个位

24、)(temp_data*1000);315.316.317.318.319./ _nop_();/320.321.322. /*323. ;MAX1169324. */325. / I2C通用驱动AD程序326.327.328. SomeNOP(void )329. /ucha门j=255;330. / while(ij-)331. _nop_()；_nop_()；_nop_()；_nop_()；332. /333.334. /*335. 调用方式：void I2CStart(void) 2005/12/10336. 函数说明：私有函数，I2C专用337. -*/338. void I2CSt

25、art( void )339. 340. /EA=0;341. SDA=1; /SomeNOP();/SCL保持高，SDA从高至此氐一次跳变，I2C通信开始342. SCL=1; SomeNOP();343. SDA=0; SomeNOP();344. SCL=0; SomeNOP();345. 346. /*347. 调用方式：void I2CStop(void) 2005/12/10348. 函数说明：私有函数，I2C专用349. -*/350. void I2CStop( void )351. 352. /SCL=0;353. SDA=0; /SomeNOP();/SCL保持高，SDA从

26、低到高一次跳变，I2C通信停止354. SCL=1; SomeNOP();355. SDA=1; SomeNOP();356. SCL=0; SomeNOP();357. /EA=1;358. 359.360. /*361. 调用方式：I2CAck(void) 2005/12/10362. 函数说明：私有函数，I2C专用，等待从器件接收方的应答363. ACK BY364. -*/365. WaitAck( void )367. unsigned char errtime=255; / 因故障接收方无 ACK(ACK 对应 SDA=0),超时值为 255 368.369. SDA=1;370.

27、 /SDA=0;371. SCL=1;372. SystemError=0x10;373. while (SDA)374. errtime-;375. if (!errtime)376. I2CStop();377. SystemError=0x11;/出错后给全局变量赋值378. return ;379. 380. ;381. SCL=0;382. _nop_();383. 384.385.386. /*387. 调用方式：voidSendAck(void) 2005/12/10388. 函数说明：私有函数，I2C专用，主器件为接收方，从器件为发送方时，应答信号。389. -*/390. v

28、oid SendAck( void )391. 392. SDA=0;SomeNOP(); /数据线保持低，时钟线发生一次从高低的跳变发送一个应答信号393. SCL=1;SomeNOP();394. SCL=0;395. 396.397. /*398. 调用方式：voidSendAck(void) 2005/12/10399. 函数说明：私有函数，I2C专用，主器件为接收方，从器件为发送方时，非应答信号。400. -*/401. void SendNotAck( void )402. 403. SDA=1;SomeNOP(); /数据线保持高，时钟线发生一次从高低的跳变没有应答404. SC

29、L=1;SomeNOP();405. SCL=0;406. 407.408. /*409. 调用方式：void I2CSend(uchar ch) 2005/12/10410. 函数说明：私有函数，I2C专用411. -*/412. void I2CSendByte(uchar ch)/write device413. 414. unsigned char i=8;415.416. while (i-)417. 418. SCL=0;_nop_();419. SDA=(bit)(ch&0x80); ch<<=1; SomeNOP();/SCK 下降沿发送数据420. SCL

30、=1; SomeNOP();421. 422. SCL=0;423.424. 425. /*426. 调用方式：uchar I2CReceive(void) 2005/12/10427. 函数说明：私有函数，I2C专用428.-*/429. uchar I2CReceiveByte( void ) /read device430. 431. unsigned char i=8,datatmp=0;432. SDA=1;/释放总线433. while (i-)434. 435. datatmp<<=1;436. SCL=0;SomeNOP();437. SCL=1;SomeNOP()

31、; /SCL做一次从低到高的跳变可以接收数据438. datatmp|=SDA;439. ;440. SCL=0;441. return datatmp;442. 443.444. /* 445. 调用方式：uint ADC(void) 2005/12/10446.函数说明：用于max1169AD转换测试(转换前是否一定要进行“HSMODE设置？ N,上电即默认为FS)447.-*/448.449.450.451.452.453.454.455.456.uint ADC(uchar addr)uint adc_data;uchar nt1;I2CStart();nt1=(addr<<

32、;1)|0x61;I2CSendByte(nt1);/写入器件地址，并设置器件为 R模式WaitAck();/写入地址后，器件向主机发送ACK。457.458./ SCL=0;/用延时的方式等待SCK变高(转换时SCK被max1169459.460.置低)/ SomeNOP();/ while(!SCL);/由于转换过程很短，转换过程中 SCL保持低，转换结束后slave释放对SCL控制461.462.463.464.465.466.467.468.469.470.471.472.473.474.475.权，但SCL仍然为0adc_data=I2CReceiveByte();/read d15

33、d8SendAck();adc_data<<=8;adc_data=adc_data|I2CReceiveByte();/read d7d0SendNotAck();I2CStop();return (adc_data);void delay(uchar x) uchar j;for (j=0;j<X;J+) ek="0,duk"9600; += "(float)ch_adccount;"yk= "(uint)filter()"yk; uint ek为当次采样比较误差,duk为pid运算结果="0,uk&q

34、uot; int signed *sp) PIDpara pid(struct *常规pid控制炉温程序(只用到了 PI部分)* _nop_();_nop_();_nop_(); DA_CS="1;" ch<<= "1;" ad5541_ck(); DIN= "ch&0x8000;"(r-)while dacs2= "1;" ch= "da1;" ch; r= "16;" uchar da1) ad5541(uintvoid SCLK= "0;_

35、nop_();_nop_();"ad5541_ck( void ) * for (i= "0;i<x;i+);" i; x) delayms(uchar *void * ;MAX5541控制程序*y;return y= "a1*x*x*x+a2*x*x+a3*x+a4;double temptrans( float 函数说明：3040度的温度曲线；温度转化程序(N-2); ( float )(sum sum= "0.0;" for (count= "1;count<N-1;count+)”选择法进行排序 ch_adci= "temp;" ch_adck="ch_adci;''temp= "ch_adck;''k= "i;" (ch_adcj<ch_adck) if (j= "i+1;j<N;j+)" for (i= "0;i<N-1;i+)"_nop_(); delay(80); ch_adccount= "ADC(0x6);" (count= "0;count<N;count+)"