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標(biāo)題: STM32單片機(jī)溫度報(bào)警器和無(wú)線通信的問(wèn)題,要重新按一次rest按鈕,溫度才會(huì)改變 [打印本頁(yè)]

作者: 2719221825zy 時(shí)間: 2021-12-5 21:34
標(biāo)題: STM32單片機(jī)溫度報(bào)警器和無(wú)線通信的問(wèn)題,要重新按一次rest按鈕,溫度才會(huì)改變
這個(gè)程序一運(yùn)行，溫度就不會(huì)改變，每次都需要重新按一次rest按鈕，溫度才會(huì)改變，怎么去解決這個(gè)問(wèn)題
單片機(jī)源程序如下:
#include "string.h"
#include "stm32f10x.h"
#include "system.h"
#include "SysTick.h"
#include "led.h"
#include "usart.h"
#include "tftlcd.h"
#include "beep.h"
#include "key.h"
#include "ds18b20.h"
#include "24l01.h"
#include "spi.h"

u8 waring[] = {10,35};
u8 *p = waring;
u8 data[200];

int main(void)
{
u8 key,mode;
u8 t1=0;
u16 t2=0;
u8 tmp_buf[1];
float temperature;
int tmp;
NRF24L01_Init();
LED_Init();
KEY_Init();
delay_init();
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
uart_init(115200);

LCD_Init();
BEEP_Init();

POINT_COLOR=RED;
LCD_ShowString(30,80,lcddev.width,lcddev.height,16,"4 ZU ZY PCC LXK YQK");

while(DS18B20_Init())
{
      LCD_ShowString(30,100,lcddev.width,lcddev.height,16,"DS18B20 Error");
      delay_ms(200);
      LCD_Fill(30,100,100,66,WHITE);
      delay_ms(200);
}
LCD_ShowString(30,100,lcddev.width,lcddev.height,16,"DS18B20 OK!");
while(NRF24L01_Check())
{
      LCD_ShowString(30,120,lcddev.width,lcddev.height,16,"NRF24L01 Error");
      delay_ms(200);
      LCD_Fill(30,120,239,120+16,WHITE);
      delay_ms(200);
}
LCD_ShowString(30,120,lcddev.width,lcddev.height,16,"NRF24L01 OK");
POINT_COLOR=BLUE;
LCD_ShowString(30,150,lcddev.width,lcddev.height,16,"xiaxian:");
LCD_ShowString(30,170,lcddev.width,lcddev.height,16,"shangxian:");

while(1)
{
      if(t1%10==0)
      {
         temperature=DS18B20_Get_Temp();
         if(temperature<0)
         {
            LCD_ShowChar(30+80,190,'-',16,0);
            temperature = -temperature;
         }
         else LCD_ShowChar(30+80,190,' ',16,0);

         sprintf((char *)data,"temperature:%.2f",temperature);
            LCD_ShowString(30,190,lcddev.width,lcddev.height,16,data);
         LCD_ShowNum(30+80+8,150,waring[0],2,16);
         LCD_ShowNum(30+80+8,170,waring[1],2,16);
      }


      t1++;
      if(t1==20)
      {
         t1=0;
         LED0 = !LED0;
      }
      delay_ms(10);

      tmp = (int)temperature;
      if((tmp<=waring[0]) || (tmp >= waring[1]))
      {
         BEEP = !BEEP;
         LED1 = 1;
      }
      else
      {
         BEEP = 0;
         LED1 = 0;
      }
while(1)
{
      key=KEY_Scan(0);
      if(key==KEY0_PRES)
      {
         mode=0;
         break;
      }else if(key==KEY1_PRES)
      {
         mode=1;
         break;
      }
      t2++;
      if(t2==100)LCD_ShowString(10,210,lcddev.width,lcddev.height,16,"KEY0:RX_Mode  KEY1:TX_Mode");
      if(t2==200)
      {
         LCD_Fill(10,210,240,210+16,WHITE);
         t2=0;
      }
      delay_ms(5);
}
   LCD_Fill(10,210,240,210+16,WHITE);
   POINT_COLOR=BLUE;
if(mode==0)
{
      LCD_ShowString(30,210,lcddev.width,lcddev.height,16,"NRF24L01 RX_Mode");
      LCD_ShowString(30,230,lcddev.width,lcddev.height,16,"Received DATA:");
      NRF24L01_RX_Mode();
      while(1)
      {
         if(NRF24L01_RxPacket(tmp_buf)==0)
         {
            if((tmp<=waring[0]) || (tmp >= waring[1]))
      {
         LCD_ShowString(30,250,lcddev.width,lcddev.height,16,"wendubaojin");
      }
      else
      {
         LCD_ShowString(30,250,lcddev.width,lcddev.height,16,"wenduzhengchang");
      }

         }else delay_us(100);
         t2++;
         if(t2==10000)
         {
            t2=0;
            LED0=!LED0;
         }
      };
}else//TXÄ£Ê½
{
      LCD_ShowString(30,210,lcddev.width,lcddev.height,16,"NRF24L01 TX_Mode");
      NRF24L01_TX_Mode();
      while(1)
      {
         if(NRF24L01_TxPacket(tmp_buf)==TX_OK)
         {
            LCD_ShowString(30,230,lcddev.width,lcddev.height,16,"Sended DATA:");
            if((tmp<=waring[0]) || (tmp >= waring[1]))
      {
         LCD_ShowString(30,250,lcddev.width,lcddev.height,16,"wendubaojin");
      }
      else
      {
         LCD_ShowString(30,250,lcddev.width,lcddev.height,16,"wenduzhengchang");
      }
            key=mode;
            for(t2=0;t2<32;t2++)
            {
                  key++;
                  if(key>('~'))key=' ';
                  tmp_buf[t2]=key;
            }
            mode++;
            if(mode>'~')mode=' ';
            tmp_buf[0]=0;
         }else
         {
               LCD_Fill(0,230,lcddev.width,230+16*3,WHITE);
            LCD_ShowString(30,230,lcddev.width-1,32,16,"Send Failed ");
         };
         LED0=!LED0;
         delay_ms(1500);
};
}
}
}

作者: 2719221825zy 時(shí)間: 2021-12-5 21:35
無(wú)線通信模塊沒(méi)有while循環(huán)就發(fā)送不了信息

作者: AUG 時(shí)間: 2021-12-6 14:35
當(dāng)你理解了while是做啥的你就知道你程序?yàn)樯队袉?wèn)題了

作者: 我的事業(yè) 時(shí)間: 2021-12-6 16:17
大師們研究我學(xué)習(xí)

作者: 188610329 時(shí)間: 2021-12-6 16:33
從表面來(lái)講，問(wèn)題在于 while(1) 太多了。

從本質(zhì)來(lái)講，你需要先學(xué)一下C語(yǔ)言的基礎(chǔ)概念。

作者: 2719221825zy 時(shí)間: 2021-12-6 19:59

AUG 發(fā)表于 2021-12-6 14:35
當(dāng)你理解了while是做啥的你就知道你程序?yàn)樯队袉?wèn)題了

我知道是由while導(dǎo)致的，后面的while循環(huán)導(dǎo)致這個(gè)程序返回不到第一個(gè)while，就是不知道怎么改

作者: 188610329 時(shí)間: 2021-12-6 20:16

2719221825zy 發(fā)表于 2021-12-6 19:59
我知道是由while導(dǎo)致的，后面的while循環(huán)導(dǎo)致這個(gè)程序返回不到第一個(gè)while，就是不知道怎么改

原則上，整個(gè)程序，有且僅有一個(gè) while(1) 你按這個(gè)思路去改就行了。

作者: TTQ001 時(shí)間: 2021-12-7 09:06
不要到處使用 while() 函數(shù)，它可能很容易捕獲程序的執(zhí)行。

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