stm8驱动dht11数码显示

1、基于STM8单片机驱动dhtll模块通过LED数码管显示温湿度值c语言程序#includestm8s.hu8sge,sshi,sbai,sqian,wge,wshi,wbai,wqian;u16value,valuel,valuel1,valuel2,valueh;u8key_value=0,key_value1;u8chuli=0 x00,0 x08,0 x80,0 x88;u8shumaguan=0 xc0,0 xC2,0 xC4,0 xC6,0 xC8,0 xCa,0 xCc,0 xce;u8deng=0 xc1,0 xC3,0 xC5,0 xC7,0 xC9,0 xCb,0 xCd,0

2、 xcf;u8table16=0 x3f,0 x06,0 x5b,0 x4f,0 x66,0 x6d,0 x7d,0 x07,0 x7f,0 x6f,0 x77,0 x7c,0 x39,0 x5e,0 x79,0 x71;u8dengzhuangtai=0 x01,0 x02,0 x04,0 x08,0 x10,0 x20,0 x40,0 x80;u16jishi=3000;#definesetclk(void)#definerstclk(void)#definesetdio(void)#definerstdio(void)#definesetclk(void)#definerstclk(vo

3、id)#definesetdio(void)#definerstdio(void)#definereaddio(void)#definesetstb(void)#definerststb(void)#definesetdht(void)#definerstdht(void)#definereaddht(void)GPIO_WriteLow(GPIOC,GPIO_PIN_1)GPIO_WriteHigh(GPIOC,GPIO_PIN_2)GPIO_WriteLow(GPIOC,GPIO_PIN_2)GPIO_ReadInputPin(GPIOC,GPIO_PIN_2)GPIO_WriteHigh

4、(GPIOC,GPIO_PIN_3)GPIO_WriteLow(GPIOC,GPIO_PIN_3)GPIO_WriteHigh(GPIOG,GPIO_PIN_0)GPIO_WriteLow(GPIOG,GPIO_PIN_0)GPIO_ReadInputPin(GPIOG,GPIO_PIN_0)u8key_data4,dht_data5,flag;voidgpio_out()GPIO_Init(GPIOC,GPIO_PIN_2,GPIO_MODE_OUT_PP_HIGH_FAST);voidgpio_in()GPIO_Init(GPIOC,GPIO_PIN_2,GPIO_MODE_IN_PU_N

5、O_IT);voiddht_out()GPIO_Init(GPIOG,GPIO_PIN_0,GPIO_MODE_OUT_PP_HIGH_FAST);voiddht_in()GPIO_Init(GPIOG,GPIO_PIN_0,GPIO_MODE_IN_PU_NO_IT);voidgpio_init()GPIO_DeInit(GPIOC);GPIO_Init(GPIOC,GPIO_PIN_1,GPIO_MODE_OUT_PP_HIGH_FAST);GPIO_Init(GPIOC,GPIO_PIN_2,GPIO_MODE_OUT_PP_HIGH_FAST);GPIO_Init(GPIOC,GPIO

6、_PIN_3,GPIO_MODE_OUT_PP_HIGH_FAST);GPIO_Init(GPIOC,GPIO_PIN_4,GPIO_MODE_OUT_PP_HIGH_FAST);GPIO_DeInit(GPIOB);GPIO_Init(GPIOB,GPIO_PIN_0,GPIO_MODE_OUT_PP_HIGH_FAST);GPIO_DeInit(GPIOG);GPIO_Init(GPIOG,GPIO_PIN_0,GPIO_MODE_OUT_PP_HIGH_FAST);voidwrite_data(u8data)u8i;rststb();for(i=0;i=1;u8read_data()u8

7、data,i,value;rststb();for(i=0;i1)|0 x80;elsevalue=value1;setclk();returnvalue;voidread_key()u16i=20,j;gpio_out();write_data(0 x42);while(i-);gpio_in();for(j=0;j4;j+)key_dataj=read_data();setstb();voidwrite_1638(u8add,u8data)write_data(add);write_data(data);setstb();voidinit(u8num)gpio_out();write_da

8、ta(0X8c);setstb();if(num)write_data(0X40);elsewrite_data(0X44);setstb();voidqingling()u8i;init(0);for(i=0;i8;i+)write_1638(shumaguani,0 x00);for(i=0;i8;i+)write_1638(dengi,0 x00);setstb();voidkey_manage()u8ii,tt;read_key();for(ii=0;ii4;ii+)key_dataii|=chuliii;for(tt=0;tt4;tt+)switch(key_datatt)case1

9、29:key_value=0;break;case144:key_value=1;break;case137:key_value=2;break;case152:key_value=3;break;case1:key_value=4;break;case16:key_value=5;break;case9:key_value=6;break;case24:key_value=7;break;case130:key_value=8;break;case160:key_value=9;break;case138:key_value=10;break;case168:key_value=11;bre

10、ak;case2:key_value=12;break;case32:key_value=13;break;case10:key_value=14;break;case40:key_value=15;break;default:break;voiddisplay1()sge=dht_data0%10;sshi=dht_data0/10%10;sbai=dht_data0/100%10;sqian=dht_data0/1000;wge=dht_data2%10;wshi=dht_data2/10%10;wbai=dht_data2/100%10;wqian=dht_data2/1000;init

11、(0);write_1638(shumaguan0,tablesge);write_1638(shumaguan1,tablesshi);write_1638(shumaguan2,tablesbai);write_1638(shumaguan3,tablesqian);write_1638(shumaguan4,tablewge);write_1638(shumaguan5,tablewshi);write_1638(shumaguan6,tablewbai);write_1638(shumaguan7,tablewqian);setstb();voiddelay_1us(u16i)TIM2

12、_DeInit();TIM2_TimeBaseInit(TIM2_PRESCALER_1,2);while(i-)TIM2_Cmd(ENABLE);while(TIM2_GetFlagStatus(TIM2_FLAG_UPDATE)!=1);TIM2_ClearFlag(TIM2_FLAG_UPDATE);TIM2_Cmd(DISABLE);voiddelay_1ms(u16i)TIM2_DeInit();TIM2_TimeBaseInit(TIM2_PRESCALER_2,1000);while(i-)TIM2_Cmd(ENABLE);while(TIM2_GetFlagStatus(TIM

13、2_FLAG_UPDATE)!=1);TIM2_ClearFlag(TIM2_FLAG_UPDATE);TIM2_Cmd(DISABLE);u8read_dht()u8value=0,ii;for(ii=0;ii8;ii+)value=1;while(!readdht();delay_1us(40);if(readdht()=1)value|=0 x01;delay_1us(40);delay_1us(2);returnvalue;voidDHT11()u8i;dht_out();rstdht();delay_1ms(25);setdht();delay_1us(50);dht_in();de

14、lay_1us(1);while(!readdht();while(readdht();for(i=0;i80)判断数据是否超出范围已经超出disp_data=80;使数据保持在80；Display(disp_data);/显示数据else没有超出Display(disp_data);显示数据if(K-=0)/判断K-是否被按下(假如按键按下时为低电平)Delay_ms(20);延时，去抖动if(k-=0)再次判断disp_data-;数值-1if(disp_data50)判断数据是否超出范围已经超出disp_data=50;使数据保持在50；Display(disp_data);/显示数据e

15、lse没有超出Display(disp_data);显示数据浏览器里直接打的代码，整体思路应该是对的，需要注意的是K+K-这样的变量keil中是非法的，实际程序中请自行改正。拿到STM8板子之后，在IAR官方下载IARforSTM8s30天试用版本，在电脑上安装后发现在安装IAR时，STLink的驱动也会全部自动的安装上去，方便啊。因为之前我的AVR都是在IAR上开发的，所有对这个软件并不陌生，打开软件新建工程，Debug模式下，设置使用STLink仿真，将空白文件成功烧写进去了，看来，开饭环境搭建还是很简单的。接下来，进入主题，STM8S的IO口控制，这是学习一个单片机最最最基础的东西了。STM8单片机IO与AVR差不多，可以配置为输入输出，同时还可以带上拉电阻下拉电阻。还有就是