#include "VM_AD7606.h"
#include "delay.h"
#include "usart.h"
#include "VM_Sampling_Control.h"

uint8_t AD_Data_Arr[16448];
uint8_t AD7606_Sampling_Flag = 0;	//AD采集控制标志位	0: 停止采集; 1: 开始采集
uint16_t AD_Arr_Num = 4; 	//数组位置标志
uint16_t AD_Tim_Num = 0; 	//AD采集计数器
uint16_t AD7606_SFC = 4; 	//AD采样频率控制
uint16_t AD7606_SONC = 0; //采样次数控制
int16_t AD7606_DATA_Arr = 0; //采集数据存取器


//AD7606引脚初始化
void AD7606_Init(void){
	
	GPIO_InitTypeDef GPIO_InitStructure; 
	
	//开启对应引脚时钟
	__HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();
	__HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOD_CLK_ENABLE();
	__HAL_RCC_GPIOE_CLK_ENABLE();
	__HAL_RCC_GPIOG_CLK_ENABLE();
	
	//浮空输入配置
	GPIO_InitStructure.Mode = GPIO_MODE_INPUT;//输入模式
	GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_HIGH;	//速度50MHz
	GPIO_InitStructure.Pull = GPIO_NOPULL; //浮空
	
	//PD 	DB0	DB1	DB2
	GPIO_InitStructure.Pin = AD7606_DB0| AD7606_DB1| AD7606_DB2;
	HAL_GPIO_Init(GPIOD,&GPIO_InitStructure); 
	
	//PA 	DB3	DB4	DB5	DB6
	GPIO_InitStructure.Pin = AD7606_DB3| AD7606_DB4| AD7606_DB5| AD7606_DB6;
	HAL_GPIO_Init(GPIOA,&GPIO_InitStructure); 
	
	//PC 	DB7	DB8	DB9	DB10
	GPIO_InitStructure.Pin = AD7606_DB7| AD7606_DB8| AD7606_DB9| AD7606_DB10;
	HAL_GPIO_Init(GPIOC,&GPIO_InitStructure); 
	
	//PG 	DB11	DB12	DB13	BUSY	FRSTDATA
	GPIO_InitStructure.Pin = AD7606_DB11| AD7606_DB12| AD7606_DB13| AD7606_BUSY| AD7606_FRSTDATA;
	HAL_GPIO_Init(GPIOG,&GPIO_InitStructure); 
	
	//PB 	DB14	DB15
	GPIO_InitStructure.Pin = AD7606_DB14| AD7606_DB15;
	HAL_GPIO_Init(GPIOB,&GPIO_InitStructure); 
	
	//推挽输出配置
	GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;//输出模式
	GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_HIGH;	//速度50MHz
	GPIO_InitStructure.Pull = GPIO_NOPULL; //浮空
	
	//PB	CONVST RANGE
	GPIO_InitStructure.Pin = AD7606_CONVST| AD7606_RANGE;
	HAL_GPIO_Init(GPIOB,&GPIO_InitStructure);
	
	//PE 	OS0	OS1	OS2	BYTE_SEL	STBY
	GPIO_InitStructure.Pin = AD7606_OS0| AD7606_OS1| AD7606_OS2| AD7606_STBY| AD7606_BYTE_SEL;
	HAL_GPIO_Init(GPIOE,&GPIO_InitStructure);
	
	//PG	RESET	RD	CS
	GPIO_InitStructure.Pin = AD7606_RESET| AD7606_RD| AD7606_CS;
	HAL_GPIO_Init(GPIOG,&GPIO_InitStructure);
	
	
	AD7606_Config();
}

//AD7606工作配置
void AD7606_Config(void){
	delay_us(1);							//延时等待AD7606上电
	AD7606_Reset(); 					//上电复位
	AD7606_STBY_NORMAL();			//正常模式
	AD7606_RANGE_5V(); 				//模拟输入范围 正负5V
	AD7606_PRL();							//并口通信
	AD7606_Semples(AD7606_SEMPLE_200K); //0倍过采样
	AD7606_Reset(); 					//上电复位
}

//采样频率设置 OS[2:0]
void AD7606_Semples(u8 AD7606_Semp_Select){
	switch(AD7606_Semp_Select){ 
		case AD7606_SEMPLE_200K: 		//000 
			AD7606_OS2_LOW();
			AD7606_OS1_LOW();
			AD7606_OS0_LOW();		
			break;
		case AD7606_SEMPLE_100K: 		//001
			AD7606_OS2_LOW();
			AD7606_OS1_LOW();
			AD7606_OS0_HIGH();
			break;
		case AD7606_SEMPLE_50K: 		//010
			AD7606_OS2_LOW();
			AD7606_OS1_HIGH();
			AD7606_OS0_LOW();
			break;
		case AD7606_SEMPLE_25K: 		//011
			AD7606_OS2_LOW();
			AD7606_OS1_HIGH();
			AD7606_OS0_HIGH();
			break;
		case AD7606_SEMPLE_12K5: 		//100
			AD7606_OS2_HIGH();
			AD7606_OS1_LOW();
			AD7606_OS0_LOW();
			break;
		case AD7606_SEMPLE_6K25: 		//101
			AD7606_OS2_HIGH();
			AD7606_OS1_LOW();
			AD7606_OS0_HIGH();
			break;
		case AD7606_SEMPLE_3K125: 	//110
			AD7606_OS2_HIGH();
			AD7606_OS1_HIGH();
			AD7606_OS0_LOW();
			break;
		default:
			break;
	}
}

//读出结果
void AD7606_Data_Pro(uint8_t *Data){
	AD7606_DATA_Arr = HAL_GPIO_ReadPin(GPIOD, AD7606_DB0)|
										HAL_GPIO_ReadPin(GPIOD, AD7606_DB1) << 1|
										HAL_GPIO_ReadPin(GPIOD, AD7606_DB2) << 2|
										HAL_GPIO_ReadPin(GPIOA, AD7606_DB3) << 3|
										HAL_GPIO_ReadPin(GPIOA, AD7606_DB4) << 4|
										HAL_GPIO_ReadPin(GPIOA, AD7606_DB5) << 5|
										HAL_GPIO_ReadPin(GPIOA, AD7606_DB6) << 6|
										HAL_GPIO_ReadPin(GPIOC, AD7606_DB7) << 7|
										HAL_GPIO_ReadPin(GPIOC, AD7606_DB8) << 8|
										HAL_GPIO_ReadPin(GPIOC, AD7606_DB9) << 9|
										HAL_GPIO_ReadPin(GPIOC, AD7606_DB10) << 10|
										HAL_GPIO_ReadPin(GPIOG, AD7606_DB11) << 11|
										HAL_GPIO_ReadPin(GPIOG, AD7606_DB12) << 12|
										HAL_GPIO_ReadPin(GPIOG, AD7606_DB13) << 13|
										HAL_GPIO_ReadPin(GPIOB, AD7606_DB14) << 14|
										HAL_GPIO_ReadPin(GPIOB, AD7606_DB15) << 15;
	
	Data[0] = AD7606_DATA_Arr >> 8;
	Data[1] = AD7606_DATA_Arr;
}

//AD7606复位信号
void AD7606_Reset(void){
		/* AD7606是高电平复位，要求最小脉宽50ns 指令执行时间为60ns*/
		AD7606_RST_LOW();
		
    AD7606_RST_HIGH();
    
    AD7606_RST_LOW();   
}

//AD7606开始转换信号
void AD7606_Start_Convst(void){
		/* 上升沿开始转换，低电平持续时间至少25ns  */
		AD7606_CONVST_HIGH();
		//delay_us(1);
	
		AD7606_CONVST_LOW();
		//delay_us(1);
		
    AD7606_CONVST_HIGH();
}

//AD7606结束转换信号
void AD7606_End_Convst(void){
		AD7606_CONVST_HIGH();
		//delay_us(1);
	
		AD7606_CONVST_LOW();
		//delay_us(1);
		
    AD7606_CONVST_HIGH();
}

//AD7606开始测量并获取结果
void AD7606_Read(uint8_t *Data){

	int j = 0;
	AD7606_CS_HIGH(); 
	AD7606_RD_HIGH();
	
	AD7606_Start_Convst(); //开始转换
	//delay_us(1);
	
	while(AD7606_BUSY_STATE){}//等待转换完成
  
	//delay_us(1);
	
	//获取数据
	AD7606_CS_LOW();	//拉低CS线 准备进行数据获取
	AD7606_RD_LOW();	//拉低RD线 等待FRSTDATA置1 进行数据读取
//	while(!AD7606_FRST_STATE){}
	//delay_us(1);
		
	for(j=0; j<8; j++){
		 AD7606_Data_Pro( &Data[AD_Arr_Num + (j*1028)] );
		
		AD7606_RD_HIGH(); //切换RD线状态 准备获取下一通道数据
		AD7606_RD_LOW();
	}

	AD_Arr_Num += 2;
	
	//数据获取及测量 结束
	AD7606_CS_HIGH(); 
	AD7606_RD_HIGH();
	
	CDC_Data_Send();
}

//浮点数据转字节
void Float_to_Byte(float data, uint8_t *arr){
	//定义联合体
	union{
		float float_val;
		
		struct{
			uint8_t low_byte;
			uint8_t mlow_byte;
			uint8_t mhigh_byte;
			uint8_t high_byte;
		}byte_arr;
		
	}Float_Byte;
	
	//将转换后的浮点数传入联合体
	Float_Byte.float_val = data; 
	
	//以小端排序将数据存入数组
	arr[0] = Float_Byte.byte_arr.high_byte;
	arr[1] = Float_Byte.byte_arr.mhigh_byte;
	arr[2] = Float_Byte.byte_arr.mlow_byte;
	arr[3] = Float_Byte.byte_arr.low_byte;
}

void Data_to_ADbuf(void){
	AD_Data_Arr[1028*0 + 0] = 0x00;
	AD_Data_Arr[1028*0 + 1] = 0x00;
	AD_Data_Arr[1028*0 + 2] = 0x00;
	AD_Data_Arr[1028*0 + 3] = 0x00;

	AD_Data_Arr[1028*1 + 0] = 0x01;
	AD_Data_Arr[1028*1 + 1] = 0x01;
	AD_Data_Arr[1028*1 + 2] = 0x01;
	AD_Data_Arr[1028*1 + 3] = 0x01;

	AD_Data_Arr[1028*2 + 0] = 0x02;
	AD_Data_Arr[1028*2 + 1] = 0x02;
	AD_Data_Arr[1028*2 + 2] = 0x02;
	AD_Data_Arr[1028*2 + 3] = 0x02;

	AD_Data_Arr[1028*3 + 0] = 0x03;
	AD_Data_Arr[1028*3 + 1] = 0x03;
	AD_Data_Arr[1028*3 + 2] = 0x03;
	AD_Data_Arr[1028*3 + 3] = 0x03;

	AD_Data_Arr[1028*4 + 0] = 0x04;
	AD_Data_Arr[1028*4 + 1] = 0x04;
	AD_Data_Arr[1028*4 + 2] = 0x04;
	AD_Data_Arr[1028*4 + 3] = 0x04;

	AD_Data_Arr[1028*5 + 0] = 0x05;
	AD_Data_Arr[1028*5 + 1] = 0x05;
	AD_Data_Arr[1028*5 + 2] = 0x05;
	AD_Data_Arr[1028*5 + 3] = 0x05;

	AD_Data_Arr[1028*6 + 0] = 0x06;
	AD_Data_Arr[1028*6 + 1] = 0x06;
	AD_Data_Arr[1028*6 + 2] = 0x06;
	AD_Data_Arr[1028*6 + 3] = 0x06;

	AD_Data_Arr[1028*7 + 0] = 0x07;
	AD_Data_Arr[1028*7 + 1] = 0x07;
	AD_Data_Arr[1028*7 + 2] = 0x07;
	AD_Data_Arr[1028*7 + 3] = 0x07;

	AD_Data_Arr[1028*8 + 0] = 0x00;
	AD_Data_Arr[1028*8 + 1] = 0x00;
	AD_Data_Arr[1028*8 + 2] = 0x00;
	AD_Data_Arr[1028*8 + 3] = 0x00;

	AD_Data_Arr[1028*9 + 0] = 0x01;
	AD_Data_Arr[1028*9 + 1] = 0x01;
	AD_Data_Arr[1028*9 + 2] = 0x01;
	AD_Data_Arr[1028*9 + 3] = 0x01;

	AD_Data_Arr[1028*10 + 0] = 0x02;
	AD_Data_Arr[1028*10 + 1] = 0x02;
	AD_Data_Arr[1028*10 + 2] = 0x02;
	AD_Data_Arr[1028*10 + 3] = 0x02;

	AD_Data_Arr[1028*11 + 0] = 0x03;
	AD_Data_Arr[1028*11 + 1] = 0x03;
	AD_Data_Arr[1028*11 + 2] = 0x03;
	AD_Data_Arr[1028*11 + 3] = 0x03;

	AD_Data_Arr[1028*12 + 0] = 0x04;
	AD_Data_Arr[1028*12 + 1] = 0x04;
	AD_Data_Arr[1028*12 + 2] = 0x04;
	AD_Data_Arr[1028*12 + 3] = 0x04;

	AD_Data_Arr[1028*13 + 0] = 0x05;
	AD_Data_Arr[1028*13 + 1] = 0x05;
	AD_Data_Arr[1028*13 + 2] = 0x05;
	AD_Data_Arr[1028*13 + 3] = 0x05;

	AD_Data_Arr[1028*14 + 0] = 0x06;
	AD_Data_Arr[1028*14 + 1] = 0x06;
	AD_Data_Arr[1028*14 + 2] = 0x06;
	AD_Data_Arr[1028*14 + 3] = 0x06;

	AD_Data_Arr[1028*15 + 0] = 0x07;
	AD_Data_Arr[1028*15 + 1] = 0x07;
	AD_Data_Arr[1028*15 + 2] = 0x07;
	AD_Data_Arr[1028*15 + 3] = 0x07;
}