基于stm32f103c8t6的最小系统板的综合应用系统例程 -

标题: 基于stm32f103c8t6的最小系统板的综合应用系统例程 [打印本页]

作者: 荒野Contra 时间: 2020-12-19 15:38
标题: 基于stm32f103c8t6的最小系统板的综合应用系统例程
概述：本综合系统包含矩阵键盘控制LED，串口控制LED，RTC时间显示，温度显示和超声波测距五个基本模块，菜单在LCD1602上显示。属于比较基本的stm32的综合系统。
个人通过面包板和杜邦线比较简易地搭建了这个综合系统，其他原料为：LCD1602显示屏，stm32f103c8t6最小系统板，USB转TTL及其驱动，超声波模块，4*4矩阵键盘。
杂乱的外表：

文件配置：

接线：
//矩阵键盘
PA0-PA3与R1~R4PA4~PA7与C1~C4
//串口
TXD与PA10
RXD与PA9
//LCD1602
VSS与GND
VDD与5V
V0与GND
RS与PA8
RW与PA11
EN与PA12
D4与PB8
D5~D7与PB5~PB7
A与3.3V
K与GND
//超声波传感模块
PB0与Ttig
PB1与Echo

main.c部分代码#include "stm32f10x.h"
#include "delay.h"
#include "rtc.h"
#include "sys.h"
#include "usart.h"
#include "LCD1602.h"
#include "keyscan.h"
#include "tsensor.h"

u8 num,ch,flag,rtcflag=0,led,rtcnum,overflow=0;
u8 tempch[5],distch[3],rtcch[4];
u16 adct,tempz;       //存放AD转换的结果
float tempv,tempt;

void gpio_init(void)
{
      GPIO_InitTypeDef GPIO_InitStructure;
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOC|RCC_APB2Periph_GPIOA,ENABLE);

      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
      GPIO_Init(GPIOC, &GPIO_InitStructure);

      GPIO_InitStructure.GPIO_Pin=GPIO_Pin_0;
      GPIO_InitStructure.GPIO_Speed=GPIO_Speed_10MHz;
      GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
      GPIO_Init(GPIOB, &GPIO_InitStructure);

      GPIO_InitStructure.GPIO_Pin=GPIO_Pin_1;
      GPIO_InitStructure.GPIO_Speed=GPIO_Speed_10MHz;
      GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN_FLOATING;
      GPIO_Init(GPIOB, &GPIO_InitStructure);

}

void nvic_init(void)
{
      NVIC_InitTypeDef NVIC_InitStructure;
      NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
      NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
      NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
      NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
      NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
      NVIC_Init(&NVIC_InitStructure);
      TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
}

void time_init(void)
{
      TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
      TIM_TimeBaseStructure.TIM_Period = 4999;       //x/(72M/prescaler)=0.025
      TIM_TimeBaseStructure.TIM_Prescaler = 359;
      TIM_TimeBaseStructure.TIM_ClockDivision = 0x0;
      TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
      TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
      TIM_Cmd(TIM3, DISABLE);
      TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);
}

u8 recedata(void)
{
      if(USART_GetFlagStatus(USART1, USART_FLAG_RXNE)==1)
      {
            ch = USART_ReceiveData(USART1);
      }
      return ch;
}

void get_rtcch(rtcnum)
{
      u8 rtcnumm;
      rtcnumm=get_rtcnum(rtcnum);
      rtcch[0]=rtcnumm/1000+0x30;
      rtcch[1]=(rtcnumm/100)%10+0x30;
      rtcch[2]=(rtcnumm/10)%10+0x30;
      rtcch[3]=rtcnumm%10+0x30;
      if(rtcch[0]=='0'&&rtcch[1]=='0')
      {
            rtcch[0]=rtcch[2];
            rtcch[1]=rtcch[3];
            rtcch[2]=' ';
            rtcch[3]=' ';
      }
}

void mainmenu(void)
{
      LCD_init();
      LCD_write_string(1,1,"1LED 2USART 3RTC");
      LCD_write_string(1,2,"4TMP 5SON");
}

void auxmenu(int key1)
{
      switch(key1)
      {
            case 1:
                     LCD_init();
                     LCD_write_string(1,1,"KEY CONTROL LED");
                     LCD_write_string(1,2,"1KS 2MS 3CL *Q");
                     break;
            case 2:
                     LCD_init();
                     LCD_write_string(1,1,"UART CONTROL LED");
                     LCD_write_string(1,2,"A-K B-M C-L *Q");
                     break;
            case 3:
                     LCD_init();
                     LCD_write_string(1,1,"#RTC");
                     LCD_write_string(1,2,"*-QUIT");
                     break;
            case 4:
                     LCD_init();
                     LCD_write_string(1,1,"#TEMP");
                     LCD_write_string(1,2,"*-QUIT");
                     break;
            case 5:
                     LCD_init();
                     LCD_write_string(1,1,"#SON");
                     LCD_write_string(1,2,"*-QUIT");
                     break;
            case 31:
                     LCD_init();
                     LCD_write_string(1,1,"min:");
                     get_rtcch(5);
                     LCD_write_string(5,1,rtcch);
                     LCD_write_string(9,1,"sec:");
                     get_rtcch(6);
                     LCD_write_string(13,1,rtcch);
                     LCD_write_string(1,2,"C-Change *-QUIT");
                     break;
            case 32:
                     LCD_init();
                     LCD_write_string(1,1,"mon:");
                     get_rtcch(2);
                     LCD_write_string(5,1,rtcch);
                     LCD_write_string(8,1,"date:");
                     get_rtcch(3);
                     LCD_write_string(13,1,rtcch);
                     LCD_write_string(1,2,"C-Change *-QUIT");
                     break;
            case 41:
                     LCD_init();
                     LCD_write_string(1,1,"TEMP:");
                     LCD_write_string(8,1,tempch);
                     LCD_write_string(13,1," ^C ");
                     LCD_write_string(1,2,"*QUIT");
                     break;
            case 51:
                     LCD_init();
                     LCD_write_string(1,1,"Distance:");
                     LCD_write_string(10,1,distch);
                     LCD_write_string(13,1," ");
                     LCD_write_string(1,2,"*QUIT");
                     break;
            default:
                     break;
      }
}

void flash_fast(void)
{
      while(1)
      {
            PCout(13)=0;
            delay_ms(50);
            PCout(13)=1;
            delay_ms(50);
            num=keyscan();
            ch=recedata();
            if(num==12||ch=='Q')
            {
                     break;
            }
      }
}

void flash_slow(void)
{
      while(1)
      {
            PCout(13)=0;
            delay_ms(500);
            PCout(13)=1;
            delay_ms(500);
            num=keyscan();
            ch=recedata();
            if(num==12||ch=='Q')
            {
                     break;
            }

      }
}

void led_cl(void)
{
      while(1)
      {

            PCout(13)=0;
            num=keyscan();
            ch=recedata();
            if(num==12||ch=='Q')
            {
                     break;
            }
      }
}

u16 dist_sensor(void)
{
      u16 time_count;
      float distance;
      PBout(0)=1;
      delay_us(10);
      PBout(0)=0;
      while(PBin(1)==0&&overflow==0);
      TIM_Cmd(TIM3, ENABLE);
      TIM_SetCounter(TIM3,0x00);
      while(PBin(1)==1&&overflow==0);
      TIM_Cmd(TIM3, DISABLE);
      time_count=TIM_GetCounter(TIM3);
      distance=time_count/200.0*17;
      if(overflow==1)
      {
            distance=999;
            overflow=0;
      }
      return distance;
}

void TIM3_IRQHandler(void)
{
      if(TIM_GetITStatus(TIM3, TIM_IT_Update) == 1)
      {
            TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
            overflow=1;
      }
}

void ledctr(void)
{
      num = keyscan();
      if(num==1)
      {
            flash_fast();
      }
      if(num==2)
      {
            flash_slow();
      }
      if(num==3)
      {
            led_cl();
      }
      PCout(13)=1;
}

void usartctr(void)
{
      ch=recedata();
      if(ch=='A')
      {
            flash_fast();
      }
      if(ch=='B')
      {
            flash_slow();
      }
      if(ch=='C')
      {
            led_cl();
      }
      PCout(13)=1;
}

void get_temp(void)
{
      num=keyscan();
      if(num==11)
      {
            while(1)
            {
                     adct=T_Get_Temp();       //获取温度的数字量
                     tempv=adct*3.3/4096;       //获得电压量3.3为基准电压，4096为2的12次方
                     tempt=(1.43-tempv)/0.0043+25-120;       //获取温度摄氏度值，1.43为25度时的温度值，0.0043为温度/VSENSE的平均斜率
                     tempz=tempt*100;
                     tempch[0]=tempt/10+0x30;
                     tempch[1]=(tempz/100)%10+0x30;
                     tempch[2]='.';
                     tempch[3]=(tempz/10)%10+0x30;
                     tempch[4]=tempz%10+0x30;
                     auxmenu(41);
                     delay_ms(200);
                     num=keyscan();
                     if(num==12)
                     {
                              break;
                     }
            }
      }
}

void get_rtc()
{
      num=keyscan();
      if(num==11)
      {
            while(1)
            {
                     if(rtcflag==0)
                     {
                              auxmenu(31);
                     }
                     else
                     {
                              auxmenu(32);
                     }
                     delay_ms(200);
                     num=keyscan();
                     if(num==13)
                     {
                              rtcflag=~rtcflag;
                     }
                     if(num==12)
                     {
                              break;
                     }
            }
      }
}

void get_son()
{
      u16 dist;
      num=keyscan();
      if(num==11)
      {
            while(1)
            {
                     dist=dist_sensor();
                     delay_ms(500);
                     distch[0]=dist/100+0x30;
                     distch[1]=(dist-100*(dist/100))/10+0x30;
                     distch[2]=dist%10+0x30;
                     auxmenu(51);
                     delay_ms(200);
                     num=keyscan();
                     if(num==12)
                     {
                              break;
                     }
            }

      }
}

void quit(int key2)
{
      ch=recedata();
      num=keyscan();
      if(ch=='Q'||num==12)
      {
            ch=recedata();
            num=keyscan();
            if(ch=='Q'||num==12)
            {
                     PCout(13)=1;
                     ch='s';
                     num=0xff;
                     mainmenu();
                     flag=1;
            }
            else
            {
                     ch='s';
                     num=0xff;
                     auxmenu(key2);
                     flag=0;
            }
      }
}

int main()
{
      delay_init();
      gpio_init();
      uart_init(9600);
      T_Adc_Init();
      time_init();
      nvic_init();
      RTC_Init();
      RTC_Set(2020,12,15,9,40,00);
      mainmenu();
      while(1)
      {
            flag=0;
            ch=recedata();
            num=keyscan();
            if(num==1||ch=='1')
            {
                     auxmenu(1);
                     while(1)
                     {
                              num=keyscan();
                              ledctr();
                              quit(1);
                              if(flag==1)
                              {
                                    break;
                              }
                              else
                              {
                                    continue;
                              }

                     }
            }
            if(num==2||ch=='2')
            {
                     auxmenu(2);
                     while(1)
                     {
                              ch=recedata();
                              num=keyscan();
                              usartctr();
                              quit(2);
                              if(flag==1)
                              {
                                    break;
                              }
                              else
                              {
                                    continue;
                              }
                     }
            }
            if(num==3||ch=='3')
            {
                     auxmenu(3);
                     delay_ms(1000);
                     while(1)
                     {
                              ch=recedata();
                              num=keyscan();
                              get_rtc();
                              quit(3);
                              if(flag==1)
                              {
                                    break;
                              }
                              else
                              {
                                    continue;
                              }
                     }
            }
            if(num==4||ch=='4')
            {
                     auxmenu(4);
                     delay_ms(1000);
                     while(1)
                     {
                              ch=recedata();
                              num=keyscan();
                              get_temp();
                              quit(4);
                              if(flag==1)
                              {
                                    break;
                              }
                              else
                              {
                                    continue;
                              }
                     }
            }
            if(num==5||ch=='5')
            {
                     auxmenu(5);
                     delay_ms(1000);
                     while(1)
                     {
                              ch=recedata();
                              num=keyscan();
                              get_son();
                              quit(5);
                              if(flag==1)
                              {
                                    break;
                              }
                              else
                              {
                                    continue;
                              }
                     }
            }
      }

}

具体工程欢迎下载附件文件。
全部资料51hei下载地址：

mainSystem.7z (188.51 KB, 下载次数: 52)

作者: 单片机爱好者223 时间: 2021-7-14 22:12
确实挺乱的。。。。

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