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標題: 基于stm32正弦波發生器 [打印本頁]

作者: 152侯利偉 時間: 2018-8-18 08:21
標題: 基于stm32正弦波發生器
#include "led.h"
#include "delay.h"
#include "sys.h"
#include "usart.h"
#include "lcd.h"
#include "adc.h"
#include "key.h"
#include "dac.h"


int main(void)
{
      u16 adcx;
      float temp;
      u8 t=0;
      u16 dacval=0;
      u8 key;
      NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);// 設置中斷優先級分組2
      delay_init();                   //延時函數初始化
      uart_init(9600);                //串口初始化為9600
      LED_Init();                               //初始化與LED連接的硬件接口
      LCD_Init();                                  //初始化LCD
      KEY_Init();                               //按鍵初始化
      Adc_Init();                               //ADC初始化
      Dac1_Init();                      //DAC通道1初始化

      POINT_COLOR=RED;//設置字體為紅色
      LCD_ShowString(60,50,200,16,16,"Mini STM32");
      LCD_ShowString(60,70,200,16,16,"DAC TEST");
      LCD_ShowString(60,90,200,16,16,"ATOM@ALIENTEK");
      LCD_ShowString(60,110,200,16,16,"2014/3/9");
      LCD_ShowString(60,130,200,16,16,"WK_UP:+  KEY0:-");
      //顯示提示信息
      POINT_COLOR=BLUE;//設置字體為藍色
      LCD_ShowString(60,150,200,16,16,"DAC VAL:");
      LCD_ShowString(60,170,200,16,16,"DAC VOL:0.000V");
      LCD_ShowString(60,190,200,16,16,"ADC VOL:0.000V");
      DAC_SetChannel1Data(DAC_Align_12b_R, 0);//????0
      while(1)
      {
            t++;
            key=KEY_Scan(0);
            if(key==WKUP_PRES)
            {
                     if(dacval<4000)dacval+=200;
                     DAC_SetChannel1Data(DAC_Align_12b_R, dacval);//??DAC?
            }else if(key==KEY0_PRES)
            {
                     if(dacval>200)dacval-=200;
                     else dacval=0;
                     DAC_SetChannel1Data(DAC_Align_12b_R, dacval);//??DAC?
            }
            if(t==10||key==KEY0_PRES||key==WKUP_PRES)       //WKUP/KEY1按下了,或者定時時間到了
            {
                     adcx=DAC_GetDataOutputValue(DAC_Channel_1);//??????DAC??
                     LCD_ShowxNum(124,150,adcx,4,16,0);          //顯示DAC寄存器值
                     temp=(float)adcx*(3.3/4096);                      //得到DAC電壓值
                     adcx=temp;
                     LCD_ShowxNum(124,170,temp,1,16,0);          //顯示電壓值整數部分
                     temp-=adcx;
                     temp*=1000;
                     LCD_ShowxNum(140,170,temp,3,16,0X80);       //顯示電壓值的小數部分
                     adcx=Get_Adc_Average(ADC_Channel_1,10);             //得到ADC轉換值
                     temp=(float)adcx*(3.3/4096);                      //得到ADC電壓值
                     adcx=temp;
                     LCD_ShowxNum(124,190,temp,1,16,0);          //顯示電壓值整數部分
                     temp-=adcx;
                     temp*=1000;
                     LCD_ShowxNum(140,190,temp,3,16,0X80);       //顯示電壓值的小數部分
                     LED0=!LED0;
                     t=0;
            }
            delay_ms(10);
      }
}

作者: admin 時間: 2018-8-18 17:01
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