#include "sys.h" 
#include "usart.h" 
#include "delay.h" 
#include "led.h"
#include "key.h"
#include "lcd.h"  
#include "sdram.h" 
#include "ltdc.h"
#include "usmart.h"
#include "adc.h"
#include "dac.h"
//ALIENTEK 北极星STM32H750/F750开发板 实验22
//DAC 实验  
//技术支持：www.openedv.com
//广州市星翼电子科技有限公司 

int main(void)
{
	u16 adcx;
	float temp;
 	u8 t=0;	 
	u16 dacval=0;
	u8 key;
	Cache_Enable();								//打开L1-Cache
	HAL_Init();				        		//初始化HAL库
	Stm32_Clock_Init(160,5,2,4);	//设置时钟,400Mhz 
	QSPI_Enable_Memmapmode();			//QSPI内存映射模式
	delay_init(400);							//延时初始化
	uart_init(115200);						//串口初始化
	LED_Init();										//初始化LED时钟
	KEY_Init();
	SDRAM_Init();                   		//初始化SDRAM
	LCD_Init();						//初始化LCD
	MY_ADC1_Init();                  		//初始化ADC1
  DAC1_Init();                    		//初始化DAC1
    
	POINT_COLOR=RED; 
	LCD_ShowString(30,50,200,16,16,"Apollo STM32H7");	
	LCD_ShowString(30,70,200,16,16,"DAC TEST");	
	LCD_ShowString(30,90,200,16,16,"ATOM@ALIENTEK");
	LCD_ShowString(30,110,200,16,16,"2017/8/14");	 
	LCD_ShowString(30,130,200,16,16,"WK_UP:+  KEY1:-");	 
	POINT_COLOR=BLUE;//设置字体为蓝色      	 
	LCD_ShowString(30,150,200,16,16,"DAC VAL:");	      
	LCD_ShowString(30,170,200,16,16,"DAC VOL:0.000V");	      
	LCD_ShowString(30,190,200,16,16,"ADC VOL:0.000V"); 	
    
	HAL_DAC_SetValue(&DAC1_Handler,DAC_CHANNEL_1,DAC_ALIGN_12B_R,0);//初始值为0 	
	while(1)
	{
		t++;
		key=KEY_Scan(0);			  
		if(key==WKUP_PRES)
		{		 
			if(dacval<4000)dacval+=200;
      HAL_DAC_SetValue(&DAC1_Handler,DAC_CHANNEL_1,DAC_ALIGN_12B_R,dacval);//设置DAC值
		}else if(key==2)	
		{
			if(dacval>200)dacval-=200;
			else dacval=0;
      HAL_DAC_SetValue(&DAC1_Handler,DAC_CHANNEL_1,DAC_ALIGN_12B_R,dacval);//设置DAC值
		}	 
		if(t==10||key==KEY1_PRES||key==WKUP_PRES) 	    //WKUP/KEY1按下了,或者定时时间到了
		{	  
      adcx=HAL_DAC_GetValue(&DAC1_Handler,DAC_CHANNEL_1);//读取前面设置DAC的值
			LCD_ShowxNum(94,150,adcx,4,16,0);     	    //显示DAC寄存器值
			temp=(float)adcx*(3.3/4096);			    //得到DAC电压值
			adcx=temp;
 			LCD_ShowxNum(94,170,temp,1,16,0);     	    //显示电压值整数部分
 			temp-=adcx;
			temp*=1000;
			LCD_ShowxNum(110,170,temp,3,16,0X80); 	    //显示电压值的小数部分
 			adcx=Get_Adc_Average(ADC1_Handler,ADC_CHANNEL_19,10);    //得到ADC转换值	  
			temp=(float)adcx*(3.3/65536);			    //得到ADC电压值
			adcx=temp;
 			LCD_ShowxNum(94,190,temp,1,16,0);     	    //显示电压值整数部分
 			temp-=adcx;
			temp*=1000;
			LCD_ShowxNum(110,190,temp,3,16,0X80); 	    //显示电压值的小数部分
			LED0_Toggle;	   
			t=0;
		}	    
		delay_ms(10);	
	}
}