STM32 CAN总线温度采集系统（点对点）源程序 -

#include "led.h"
#include "delay.h"
#include "key.h"
#include "sys.h"
#include "lcd.h"
#include "usart.h"
#include "can.h"
#include "ds18b20.h"
int main(void)
{
u8 i=0,t=0;
u8 canbuf1[8];
u8 canbuf0[8];
u8 temp;
u8 res;
short temperature;
NVIC_Configuration(); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
KEY_Init(); //按键初始化
CAN_Mode_Init(CAN_SJW_1tq,CAN_BS2_1tq,CAN_BS1_6tq,9,CAN_Mode_Normal);//CAN初始化环回模式,波特率500Kbps 原来的 CAN_Mode_Normal
delay_init(); //延时函数初始化
uart_init(9600); //串口初始化为9600
LED_Init(); //初始化与LED连接的硬件接口
LCD_Init();
POINT_COLOR=RED;//设置字体为红色
LCD_ShowString(60,50,200,16,16,"Mini STM32");
LCD_ShowString(60,70,200,16,16,"DS18B20+CAN TEST");
LCD_ShowString(60,90,200,16,16,"ATOM@ALIENTEK");
LCD_ShowString(60,110,200,16,16,"2016/6/6");
LCD_ShowString(60,130,200,16,16,"LoopBack Mode");
LCD_ShowString(60,190,200,16,16,"Send Data:");
while(DS18B20_Init()) //DS18B20初始化
{
LCD_ShowString(60,130,200,16,16,"DS18B20 Error");
delay_ms(200);
LCD_Fill(60,130,239,130+16,WHITE);
delay_ms(200);
}
LCD_ShowString(60,130,200,16,16,"DS18B20 OK");
POINT_COLOR=BLUE;//设置字体为蓝色
LCD_ShowString(60,150,200,16,16,"Temp: . C");
while(1)
{
if(t%10==0)//每100ms读取一次
{
temperature=DS18B20_Get_Temp();
if(temperature<0)
{
LCD_ShowChar(60+40,150,'-',16,0); //显示负号
temperature=-temperature; //转为正数
}else LCD_ShowChar(60+40,150,' ',16,0); //去掉负号
LCD_ShowNum(60+40+8,150,temperature/10,2,16); //显示正数部分
LCD_ShowNum(60+40+32,150,temperature%10,1,16); //显示小数部分
temp=temperature;
for(i=0;i<8;i++)
canbuf0[i]=temp; //温度赋值并发送到主机
Can_Send_Msg(canbuf0,8);//发送8个字节
temp=temperature>>8;
for(i=0;i<8;i++)
canbuf1[i]=(temp); //温度赋值并发送到主机
Can_Send_Msg(canbuf1,8);//发送8个字节
// if(res)LCD_ShowString(60+80,190,200,16,16,"Failed"); //提示发送失败
// else LCD_ShowString(60+80,190,200,16,16,"OK "); //提示发送成功
}
delay_ms(10);
t++;
if(t==20)
{
t=0;
LED0=!LED0;
}
}
}

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