IC解密STM32单片机DS18B20驱动
IC解密STM32单片机源程序如下:
- #include "sys.h"
- #include "delay.h"
- #include "usart.h"
- #include "led.h"
- #include "lcd.h"
- #include "ds18b20.h"
-
- int main(void)
- {
- u8 t=0;
- short temperature;
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置系统中断优先级分组2
- delay_init(168); //初始化延时函数
- uart_init(115200); //初始化串口波特率为115200
-
- LED_Init(); //初始化LED
- LCD_Init();
- POINT_COLOR=RED;//设置字体为红色
- LCD_ShowString(30,50,200,16,16,"Explorer STM32F4");
- LCD_ShowString(30,70,200,16,16,"DS18B20 TEST");
- LCD_ShowString(30,90,200,16,16,"ATOM@ALIENTEK");
- LCD_ShowString(30,110,200,16,16,"2014/5/7");
- while(DS18B20_Init()) //DS18B20初始化
- {
- LCD_ShowString(30,130,200,16,16,"DS18B20 Error");
- delay_ms(200);
- LCD_Fill(30,130,239,130+16,WHITE);
- delay_ms(200);
- }
- LCD_ShowString(30,130,200,16,16,"DS18B20 OK");
- POINT_COLOR=BLUE;//设置字体为蓝色
- LCD_ShowString(30,150,200,16,16,"Temp: . C");
- while(1)
- {
- if(t%10==0)//每100ms读取一次
- {
- temperature=DS18B20_Get_Temp();
- if(temperature<0)
- {
- LCD_ShowChar(30+40,150,'-',16,0); //显示负号
- temperature=-temperature; //转为正数
- }else LCD_ShowChar(30+40,150,' ',16,0); //去掉负号
- LCD_ShowNum(30+40+8,150,temperature/10,2,16); //显示正数部分
- LCD_ShowNum(30+40+32,150,temperature%10,1,16); //显示小数部分
- }
- delay_ms(10);
- t++;
- ……………………
芯片解密
