STM32 中重定向printf 和 scanf

时间:2022-09-05 22:22:35

uart.c

  如果使用#pragma import(__use_no_semihosting),则在MDK中不勾选use Microlib。当前代码直接重定向没使用#pragma import(__use_no_semihosting),故需要选择use Microlib。

  

#include "usart.h"
#include <stdio.h>
#include <string.h>
#include "ad5592.h"
#include "ad5766.h"
#include "ad7699.h"
////////////////////////////////////////////////////////////////////////////////// 	
#define SELF_CHECK_CMD_R    			0x01
#define SELF_CHECK_CMD_T    			0x02
#define LASER_CMD_R         			0x03
#define LASER_CMD_T         			0x04
#define LASER_PARAMETER_CMD_R     0x05
#define LASER_PARAMETER_CMD_T     0x06
#define TEC_PARAMETER_CMD_R       0x07
#define TEC_PARAMETER_CMD_T       0x08
#define MODULATOR_CMD_R           0x09
#define MODULATOR_CMD_T           0x0A
#define FFT_CMD_R                 0x0B
#define FFT_CMD_T                 0x0C


//如果使用os,则包括下面的头文件即可.
#if SYSTEM_SUPPORT_OS
#include "includes.h"					//os 使用	  
#endif
	  UART_HandleTypeDef UART1_Handler; //UART句柄
//加入以下代码,支持printf函数,而不需要选择use MicroLIB	  
//#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)	
#if 0
#pragma import(__use_no_semihosting)             
//标准库需要的支持函数                 
struct __FILE 
{ 
	int handle; 
}; 

FILE __stdout;       
//定义_sys_exit()以避免使用半主机模式    
void _sys_exit(int x) 
{ 
	x = x; 
} 
//重定义fputc函数 
int fputc(int ch, FILE *f)
{ 	
	while((USART1->ISR&0X40)==0);//循环发送,直到发送完毕   
	USART1->TDR=(u8)ch;      
	return ch;
}
#endif 

#if 1
	//重定义fputc函数 
int fputc(int ch, FILE *f)
{ 	
	while((USART1->ISR&0X40)==0);//循环发送,直到发送完毕   
	//USART1->RQR |= USART_RQR_TXFRQ;
	USART1->TDR=(u8)ch;      
	return ch;
}

int fgetc(FILE *f)
{
	while((USART1->ISR & UART_FLAG_RXNE) == RESET);
	//USART1->RQR |= USART_RQR_RXFRQ;
	return (int)(USART1->RDR);

}


#endif



#if EN_USART1_RX   //如果使能了接收
//串口1中断服务程序
//注意,读取USARTx->SR能避免莫名其妙的错误   	
u8 USART_RX_BUF[USART_REC_LEN];     //接收缓冲,最大USART_REC_LEN个字节.
//接收状态
//bit15,	接收完成标志
//bit14,	接收到0x0d
//bit13~0,	接收到的有效字节数目
u16 USART_RX_STA=0;       //接收状态标记	
u16 gUsartOneReceiveFlag = 0;      //接收到一帧数据标志
u8 aRxBuffer[RXBUFFERSIZE];       //HAL库使用的串口接收缓冲
u8 gFrameInfo[RXBUFFERSIZE];
u16 gADC5767_ADCVal[8];

u8 FFT_Flag = 0;                  //FFT实时数据上报标志
extern ad5766_dev *dev;


typedef struct{
	uint16_t Head;
	uint8_t  SourceID;
	uint8_t  DestinationID;
	uint8_t  Command;
	uint8_t  Data[9];
	uint16_t Tail;
}FrameInfo_TypeDef;



//初始化IO 串口1 
//bound:波特率
void uart_init(u32 bound)
{	
	//UART 初始化设置
	UART1_Handler.Instance=USART1;					            //USART1
	UART1_Handler.Init.BaudRate=bound;				          //波特率
	UART1_Handler.Init.WordLength=UART_WORDLENGTH_8B;   //字长为8位数据格式
	UART1_Handler.Init.StopBits=UART_STOPBITS_1;	      //一个停止位
	UART1_Handler.Init.Parity=UART_PARITY_NONE;		      //无奇偶校验位
	UART1_Handler.Init.HwFlowCtl=UART_HWCONTROL_NONE;   //无硬件流控
	UART1_Handler.Init.Mode=UART_MODE_TX_RX;		        //收发模式
	HAL_UART_Init(&UART1_Handler);					            //HAL_UART_Init()会使能UART1
	
	//HAL_UART_Receive_IT(&UART1_Handler, (u8 *)aRxBuffer, RXBUFFERSIZE);//该函数会开启接收中断:标志位UART_IT_RXNE,并且设置接收缓冲以及接收缓冲接收最大数据量
  
} 

//UART底层初始化,时钟使能,引脚配置,中断配置
//此函数会被HAL_UART_Init()调用
//huart:串口句柄

void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
    //GPIO端口设置
	GPIO_InitTypeDef GPIO_Initure;
	
	if(huart->Instance==USART1)//如果是串口1,进行串口1 MSP初始化
	{
		__HAL_RCC_GPIOA_CLK_ENABLE();			//使能GPIOA时钟
		__HAL_RCC_GPIOB_CLK_ENABLE();			//使能GPIOA时钟
		__HAL_RCC_USART1_CLK_ENABLE();			//使能USART1时钟
	  
		#if 1
		GPIO_Initure.Pin=GPIO_PIN_9;			//PA9
		GPIO_Initure.Mode=GPIO_MODE_AF_PP;		//复用推挽输出
		GPIO_Initure.Pull=GPIO_PULLUP;			//上拉
		GPIO_Initure.Speed=GPIO_SPEED_FAST;		//高速
		GPIO_Initure.Alternate=GPIO_AF7_USART1;	//复用为USART1
		HAL_GPIO_Init(GPIOA,&GPIO_Initure);	   	//初始化PA9

		GPIO_Initure.Pin=GPIO_PIN_10;			//PA10
		HAL_GPIO_Init(GPIOA,&GPIO_Initure);	   	//初始化PA10
		#endif
		
		#if 0
		GPIO_Initure.Pin=GPIO_PIN_6;			       //PB6
		GPIO_Initure.Mode=GPIO_MODE_AF_PP;		   //复用推挽输出
		GPIO_Initure.Pull=GPIO_PULLUP;			     //上拉
		GPIO_Initure.Speed=GPIO_SPEED_FAST;		   //高速
		GPIO_Initure.Alternate=GPIO_AF7_USART1;	 //复用为USART1
		HAL_GPIO_Init(GPIOB,&GPIO_Initure);	   	 //初始化PB6

		GPIO_Initure.Pin=GPIO_PIN_7;			       //PB7
		HAL_GPIO_Init(GPIOB,&GPIO_Initure);	   	//初始化PB7
		#endif
#if EN_USART1_RX
		HAL_NVIC_EnableIRQ(USART1_IRQn);				    //使能USART1中断通道
		HAL_NVIC_SetPriority(USART1_IRQn,0,0);			//抢占优先级3,子优先级3
#endif	
	}

}

//接收完成处理回调函数
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
	if(huart->Instance==USART1)//如果是串口1
	{
//		if((USART_RX_STA&0x8000)==0)//接收未完成
//		{
//			if(USART_RX_STA&0x4000)//接收到了0x0d
//			{
//				if(aRxBuffer[0]!=0x0a)USART_RX_STA=0;//接收错误,重新开始
//				else USART_RX_STA|=0x8000;	//接收完成了 
//			}
//			else //还没收到0X0D
//			{	
//				if(aRxBuffer[0]==0x0d)USART_RX_STA|=0x4000;
//				else
//				{
//					USART_RX_BUF[USART_RX_STA&0X3FFF]=aRxBuffer[0] ;
//					USART_RX_STA++;
//					if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0;//接收数据错误,重新开始接收	  
//				}		 
//			}
		   memset(gFrameInfo, 0, RXBUFFERSIZE);	
			 memcpy(gFrameInfo, aRxBuffer, RXBUFFERSIZE);
		   gUsartOneReceiveFlag = 1; //接收一帧数据标志,待处理
		   HAL_UART_Receive_IT(&UART1_Handler,(u8 *)aRxBuffer, RXBUFFERSIZE);
		  //}

	}
}

#if 0
//串口1中断服务程序
void USART1_IRQHandler(void)                	
{ 
	u32 timeout=0;
    u32 maxDelay=0x1FFFF;
#if SYSTEM_SUPPORT_OS	 	//使用OS
	OSIntEnter();    
#endif
	
	HAL_UART_IRQHandler(&UART1_Handler);	//调用HAL库中断处理公用函数
	
	timeout=0;
  while (HAL_UART_GetState(&UART1_Handler)!=HAL_UART_STATE_READY)//等待就绪
	{
        timeout++;////超时处理
        if(timeout>maxDelay) break;		
	}
     
	timeout=0;
	while(HAL_UART_Receive_IT(&UART1_Handler,(u8 *)aRxBuffer, RXBUFFERSIZE)!=HAL_OK)//一次处理完成之后,重新开启中断并设置RxXferCount为1
	{
        timeout++; //超时处理
        if(timeout>maxDelay) break;	
	}
#if SYSTEM_SUPPORT_OS	 	//使用OS
	OSIntExit();  											 
#endif
} 
#endif	//end of //串口1中断服务程序

#endif// end of EN_USART1_RX


#if 1
//串口1中断服务程序
void USART1_IRQHandler(void)    
{
	u8 res;
#if SYSTEM_SUPPORT_OS	 	//使用OS
	OSIntEnter();    
#endif
//	if(__HAL_UART_GET_FLAG(&UART1_Handler, UART_FLAG_RXNE)!=RESET)
//	{
//		HAL_UART_Receive(&UART1_Handler, &res, 1, 1000);
//		if((USART_RX_STA&0x8000)==0)//接收未完成
//		{
//			if(USART_RX_STA&0x4000)//接收到了0x0d
//			{
//				if(res!=0x0a)USART_RX_STA=0;//接收错误,重新开始
//				else USART_RX_STA|=0x8000;	//接收完成了 
//			}
//			else //还没收到0X0D
//			{	
//				if(res==0x0d)USART_RX_STA|=0x4000;
//				else
//				{
//					USART_RX_BUF[USART_RX_STA&0X3FFF]=res ;
//					USART_RX_STA++;
//					if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0;//接收数据错误,重新开始接收	  
//				}		 
//			}
//		}
//	}
	HAL_UART_IRQHandler(&UART1_Handler);	//调用HAL库中断处理公用函数
	#if SYSTEM_SUPPORT_OS //使用OS
		OSIntExit();
	#endif
	
}

#endif














/*下面代码我们直接把中断控制逻辑写在中断服务函数内部。*/
/*

//串口1中断服务程序
void USART1_IRQHandler(void)                	
{ 
	u8 Res;
#if SYSTEM_SUPPORT_OS	 	//使用OS
	OSIntEnter();    
#endif
	if((__HAL_UART_GET_FLAG(&UART1_Handler,UART_FLAG_RXNE)!=RESET))  //接收中断(接收到的数据必须是0x0d 0x0a结尾)
	{
        HAL_UART_Receive(&UART1_Handler,&Res,1,1000); 
		if((USART_RX_STA&0x8000)==0)//接收未完成
		{
			if(USART_RX_STA&0x4000)//接收到了0x0d
			{
				if(Res!=0x0a)USART_RX_STA=0;//接收错误,重新开始
				else USART_RX_STA|=0x8000;	//接收完成了 
			}
			else //还没收到0X0D
			{	
				if(Res==0x0d)USART_RX_STA|=0x4000;
				else
				{
					USART_RX_BUF[USART_RX_STA&0X3FFF]=Res ;
					USART_RX_STA++;
					if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0;//接收数据错误,重新开始接收	  
				}		 
			}
		}   		 
	}
	HAL_UART_IRQHandler(&UART1_Handler);	
#if SYSTEM_SUPPORT_OS	 	//使用OS
	OSIntExit();  											 
#endif
} 
#endif	
*/

 /**----------------------------------------------------------------------------
** @Function:		   FrameInfoProcess
**
** @Descriptions:	   	
**
** @parameters:			
**                  
**                  
**                  
** @Returned: none
** 
** @Author:  MCU Application Team
**
** @Date: 2017-11-16
**
-------------------------------------------------------------------------------*/
 void FrameInfoProcess(void)
 {
	 
	 u8 RxBuffer[RXBUFFERSIZE]; 
	 FrameInfo_TypeDef* sFrameInfo = (FrameInfo_TypeDef*)RxBuffer;
//	  uint16_t FrameHead = 0;
//	  uint8_t SourceID = 0, DestinationID = 0;
	  memcpy(RxBuffer, gFrameInfo, RXBUFFERSIZE);
//	  FrameHead = RxBuffer[0] + (RxBuffer[1]<<8);
//	  SourceID = RxBuffer[2];
//	  DestinationID = RxBuffer[3];
//	  sFrameInfo = (FrameInfo_TypeDef*)&RxBuffer;
	  if(sFrameInfo->Head == 0x7E7E)
		{
			if((sFrameInfo->SourceID == 1)&&(sFrameInfo->DestinationID == 81))
			{
					switch(sFrameInfo->Command)
					{
						/*		
						#define SELF_CHECK_CMD_R    			0x01
						#define SELF_CHECK_CMD_T    			0x02
						#define LASER_CMD_R         			0x03
						#define LASER_CMD_T         			0x04
						#define LASER_PARAMETER_CMD_R     0x05
						#define LASER_PARAMETER_CMD_T     0x06
						#define TEC_PARAMETER_CMD_R       0x07
						#define TEC_PARAMETER_CMD_T       0x08
						#define MODE_CMD_R                0x09
						#define MODE_CMD_T                0x0A
						#define FFT_CMD_R                 0x0B
						#define FFT_CMD_T                 0x0C
						*/
						case SELF_CHECK_CMD_R:           //自检状态下发
						{
							FFT_Flag = 0;
							HAL_UART_Transmit(&UART1_Handler, (uint8_t*)RxBuffer, RXBUFFERSIZE, 50);
							break;
						}
						case SELF_CHECK_CMD_T:           //自检状态上报
						{
							FFT_Flag = 0;
							break;
						}
						case LASER_CMD_R:                //激光器命令下发
						{
							FFT_Flag = 0;
							break;
						}
						case LASER_CMD_T:                //激光器命令上报
						{
							
              FFT_Flag = 0;
							break;
						}
						case LASER_PARAMETER_CMD_R:      //激光器参数下发
						{
							FFT_Flag = 0;
							break;
						}
						case LASER_PARAMETER_CMD_T:      //激光器参数上报
						{
							FFT_Flag = 0;
							break;
						}
						case TEC_PARAMETER_CMD_R:        //TEC参数下发
						{
							FFT_Flag = 0;
							break;
						}
						case TEC_PARAMETER_CMD_T:        //TEC参数上报
						{
							FFT_Flag = 0;
							break;
						}
						case MODULATOR_CMD_R:                 //调制器参数下发
						{
							FFT_Flag = 0;
							break;
						}
						case MODULATOR_CMD_T:                 //调制器参数上报
						{
							FFT_Flag = 0;
							break;
						}
						case FFT_CMD_R:                  //FFT实时数据状态下发
						{
							FFT_Flag = 1;
							break;
						}
						case FFT_CMD_T:                  //FFT实时数据上报
						{
							break;
						}
						default:break;
						
					}
			}
		}
	  
	  
 
 }

 
 
 void SelfCheck(uint8_t *rData)
 {
		
 }
 
 /*----------------------------------------------------------------------------
** Function name:		LaserCMDReciveProcess
**
** Descriptions:		激光器命令下发处理
**
** parameters:		  rData:接收到的数据	
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-11-18
**
-------------------------------------------------------------------------------*/
 void LaserCmdReciveProcess(uint8_t* rData)
 {
		uint8_t temp[8];
	  uint8_t ChannelCtl = 0;
	  memcpy(temp, &rData[5], 9);
	  ChannelCtl = temp[0]&0x0f;
	  if(ChannelCtl&0x0E) //LD1_ALS
		{
			HAL_GPIO_WritePin(GPIOG, GPIO_PIN_4 , GPIO_PIN_RESET);
		}
		if(ChannelCtl&0x0D) //LD2_ALS
		{
			HAL_GPIO_WritePin(GPIOG, GPIO_PIN_5 , GPIO_PIN_RESET);
		}
		if(ChannelCtl&0x0B) //LD3_ALS
		{
			HAL_GPIO_WritePin(GPIOG, GPIO_PIN_6 , GPIO_PIN_RESET);
		}
		if(ChannelCtl&0x07) //LD4_ALS
		{
			HAL_GPIO_WritePin(GPIOG, GPIO_PIN_7 , GPIO_PIN_RESET);
		}
 }
 
/*----------------------------------------------------------------------------
** Function name:		LaserCMDTransmitProcess
**
** Descriptions:		激光器上报命令处理
**
 ** parameters:			rData:接收到的数据
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-11-18
**
-------------------------------------------------------------------------------*/
 void LaserCmdTransmitProcess(uint8_t* rData)
 {
		uint8_t temp[RXBUFFERSIZE];
	  FrameInfo_TypeDef *sFrameInfo = (FrameInfo_TypeDef *)&temp;
	  memcpy(temp, rData, RXBUFFERSIZE);
	  sFrameInfo->Head = 0x7e7e;
		sFrameInfo->Command = 0x04;
		sFrameInfo->SourceID = 0x51;
		sFrameInfo->DestinationID = 0x01;
		sFrameInfo->Tail = 0xFDFD;
	  HAL_UART_Transmit(&UART1_Handler, (uint8_t*)temp, RXBUFFERSIZE, 50);
 }
 
 
/*----------------------------------------------------------------------------
** Function name:		LaserParameterCmdReciveProcess
**
** Descriptions:		激光参数下发命令处理
**
 ** parameters:			rData:接收到的数据
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-11-18
**
-------------------------------------------------------------------------------*/
 void LaserParameterCmdReciveProcess(uint8_t* rData)
 {
		uint8_t temp[RXBUFFERSIZE];
	  uint8_t ChannelCtl = 0;
	  uint16_t ADC_Val = 0;
	  memcpy(temp, &rData[5], 9); //只复制数据内容
	  ChannelCtl = temp[0]&0x0f;
	  if(ChannelCtl&0x0E) //
		{
			ADC_Val = (temp[2]&0x0F)*256 + temp[1];	
	    AD5592_DAC_Set(ADDR_DAC4, ADC_Val);			
		}
		if(ChannelCtl&0x0D) //
		{
			ADC_Val = (temp[3]&0x0F)*256 + temp[4];	
	    AD5592_DAC_Set(ADDR_DAC5, ADC_Val);
		}
		if(ChannelCtl&0x0B) //
		{
			ADC_Val = (temp[5]&0x0F)*256 + temp[6];	
	    AD5592_DAC_Set(ADDR_DAC6, ADC_Val);
		}
		if(ChannelCtl&0x07) //
		{
			ADC_Val = (temp[7]&0x0F)*256 + temp[8];	
	    AD5592_DAC_Set(ADDR_DAC7, ADC_Val);
		}
    
 }
 
 
 
 /*----------------------------------------------------------------------------
** Function name:		LaserParameterCmdReciveProcess
**
** Descriptions:		激光参数上报命令处理
**
 ** parameters:			rData:接收到的数据
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-11-18
**
-------------------------------------------------------------------------------*/ 
 void LaserParameterCmdTransmitProcess(uint8_t* rData)
 {
		uint8_t temp[RXBUFFERSIZE];
	  FrameInfo_TypeDef *sFrameInfo = (FrameInfo_TypeDef *)&temp;
	  memcpy(temp, rData, RXBUFFERSIZE);
	  sFrameInfo->Head = 0x7e7e;
		sFrameInfo->Command = 0x06;
		sFrameInfo->SourceID = 0x51;
		sFrameInfo->DestinationID = 0x01;
		sFrameInfo->Tail = 0xFDFD;
	  HAL_UART_Transmit(&UART1_Handler, (uint8_t*)temp, RXBUFFERSIZE, 50);	
 }	 
 
 
 /*----------------------------------------------------------------------------
** Function name:		TECCmdReciveProcess
**
** Descriptions:		TEC下发命令处理
**
 ** parameters:			rData:接收到的数据
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-11-19
**
-------------------------------------------------------------------------------*/
 void TECCmdReciveProcess(uint8_t* rData)
 {
		uint8_t temp[RXBUFFERSIZE];
	  uint8_t ChannelCtl = 0;
	  uint16_t ADC_Val = 0;
	  memcpy(temp, &rData[5], 9); //只复制数据内容
	  ChannelCtl = temp[0]&0x0f;
	  if(ChannelCtl&0x0E) //
		{
			ADC_Val = (temp[1]&0x0F)*256 + temp[2];	
	    AD5592_DAC_Set(ADDR_DAC0, ADC_Val);			
		}
		if(ChannelCtl&0x0D) //
		{
			ADC_Val = (temp[3]&0x0F)*256 + temp[4];	
	    AD5592_DAC_Set(ADDR_DAC1, ADC_Val);
		}
		if(ChannelCtl&0x0B) //
		{
			ADC_Val = (temp[5]&0x0F)*256 + temp[6];	
	    AD5592_DAC_Set(ADDR_DAC2, ADC_Val);
		}
		if(ChannelCtl&0x07) //
		{
			ADC_Val = (temp[7]&0x0F)*256 + temp[8];	
	    AD5592_DAC_Set(ADDR_DAC3, ADC_Val);
		}
 
 }

/*----------------------------------------------------------------------------
** Function name:		TECCmdTransmitProcess
**
** Descriptions:		TEC上报命令处理
**
 ** parameters:			rData:接收到的数据
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-11-18
**
-------------------------------------------------------------------------------*/
 void TECCmdTransmitProcess(uint8_t* rData)
 {
		uint8_t temp[RXBUFFERSIZE];
	  FrameInfo_TypeDef *sFrameInfo = (FrameInfo_TypeDef *)&temp;
	  memcpy(temp, rData, RXBUFFERSIZE);
	  sFrameInfo->Head = 0x7e7e;
		sFrameInfo->Command = 0x08;
		sFrameInfo->SourceID = 0x51;
		sFrameInfo->DestinationID = 0x01;
		sFrameInfo->Tail = 0xFDFD;
	  HAL_UART_Transmit(&UART1_Handler, (uint8_t*)temp, RXBUFFERSIZE, 50);
 }
 
 /*----------------------------------------------------------------------------
** Function name:		ModulatorCmdReciveProcess
**
** Descriptions:		调制参数下发命令处理
**
 ** parameters:			rData:接收到的数据
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-11-18
**
-------------------------------------------------------------------------------*/
 void ModulatorCmdReciveProcess(uint8_t* rData)
 {
		uint8_t temp[RXBUFFERSIZE];
	  uint8_t ChannelCtl = 0;
	  uint16_t ADC_Val = 0;
	  memcpy(temp, &rData[5], 9); //只复制数据内容
	  ChannelCtl = temp[0]&0x0f;
	  if(ChannelCtl&0x10) //第5位为高为被控工作模式
		{
			if(ChannelCtl&0x0E) //
			{
				ADC_Val = (temp[1]&0x0F)*256 + temp[2];	
				gADC5767_ADCVal[0] = ADC_Val;
				ad5766_set_dac_reg(dev, AD5766_DAC_0, ADC_Val);		
			}
			if(ChannelCtl&0x0D) //
			{
				ADC_Val = (temp[3]&0x0F)*256 + temp[4];	
				gADC5767_ADCVal[1] = ADC_Val;
				ad5766_set_dac_reg(dev, AD5766_DAC_1, ADC_Val);		
			}
			if(ChannelCtl&0x0B) //
			{
				ADC_Val = (temp[5]&0x0F)*256 + temp[6];	
				gADC5767_ADCVal[2] = ADC_Val;
				ad5766_set_dac_reg(dev, AD5766_DAC_2, ADC_Val);		
			}
			if(ChannelCtl&0x07) //
			{
				ADC_Val = (temp[7]&0x0F)*256 + temp[8];	
				gADC5767_ADCVal[3] = ADC_Val;
				ad5766_set_dac_reg(dev, AD5766_DAC_3, ADC_Val);		
			}
	  }
		else//自主模式
		{
		
		
		}
 
 }

/*----------------------------------------------------------------------------
** Function name:		ModulatorCmdTansmitProcess
**
** Descriptions:		调制参数上报命令处理
**
 ** parameters:			rData:接收到的数据
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-11-18
**
-------------------------------------------------------------------------------*/
 void ModulatorCmdTansmitProcess(uint8_t* rData)
 {
		uint8_t temp[RXBUFFERSIZE];
	  uint32_t adcval = 0;
	  uint32_t WriteData = 0;
	  FrameInfo_TypeDef *sFrameInfo = (FrameInfo_TypeDef *)&temp;
	  memcpy(temp, &rData, RXBUFFERSIZE);
	  sFrameInfo->Head = 0x7e7e;
		sFrameInfo->Command = 0x0C;
		sFrameInfo->SourceID = 0x51;
		sFrameInfo->DestinationID = 0x01;
		sFrameInfo->Tail = 0xFDFD;
	  /*
			IN0,IN2,IN4,IN6:直流数据
	  */
	  sFrameInfo->Data[0] = 0x00;
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN0 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[1] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[2] = (adcval&0x00ff);
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN2 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[3] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[4] = (adcval&0x00ff);
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN4 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[5] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[6] = (adcval&0x00ff);
	 	WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN6 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[7] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[8] = (adcval&0x00ff);
	  HAL_UART_Transmit(&UART1_Handler, (uint8_t*)temp, RXBUFFERSIZE, 50);
	  /*
			IN1,IN3,IN5,IN7 交流数据
	  */
	  sFrameInfo->Data[0] = 0x00;
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN1 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[1] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[2] = (adcval&0x00ff);
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN3 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[3] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[4] = (adcval&0x00ff);
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN5 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[5] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[6] = (adcval&0x00ff);
	 	WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN7 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[7] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[8] = (adcval&0x00ff);
	  HAL_UART_Transmit(&UART1_Handler, (uint8_t*)temp, RXBUFFERSIZE, 50);
 }
 
 /*----------------------------------------------------------------------------
** Function name:		FFTCmdReciveProcess
**
** Descriptions:		FFT实时数据状态下发命令处理
**
 ** parameters:			rData:接收到的数据
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-11-18
**
-------------------------------------------------------------------------------*/
void FFTCmdReciveProcess(uint8_t* rData)
{
	  
		uint8_t temp[RXBUFFERSIZE];
	  uint32_t adcval = 0;
	  uint32_t WriteData = 0;
	  if(FFT_Flag == 0) //不实时上报FFT数据
		{
			return;
		}
		else{
//	  FrameInfo_TypeDef *sFrameInfo = (FrameInfo_TypeDef *)&temp;
//	  memcpy(temp, &rData, RXBUFFERSIZE);
//		sFrameInfo->Head = 0x7e7e;
//		sFrameInfo->Command = 0x0C;
//		sFrameInfo->SourceID = 0x51;
//		sFrameInfo->DestinationID = 0x01;
//		sFrameInfo->Tail = 0xFDFD;
//	  /*第一通道*/
//	  
//	  //直流电压
//	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN0 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
//	  adcval = AD7699_data_write_and_read(WriteData);
//	  sFrameInfo->Data[1] = (adcval&0xff00) >> 8;
//	  sFrameInfo->Data[2] = (adcval&0x00ff);
//	  //交流电压
//	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN1 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
//	  adcval = AD7699_data_write_and_read(WriteData);
//	  sFrameInfo->Data[3] = (adcval&0xff00) >> 8;
//	  sFrameInfo->Data[4] = (adcval&0x00ff);
//		//FFT主杂比
//		//待写
//		sFrameInfo->Data[7] = (gADC5767_ADCVal[0]&0xff00) >> 8;
//		sFrameInfo->Data[8] = (gADC5767_ADCVal[0]&0x00ff);
//	 
//	 	/*第二通道*/
//	 
//	  //直流电压
//	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN2 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
//	  adcval = AD7699_data_write_and_read(WriteData);
//	  sFrameInfo->Data[1] = (adcval&0xff00) >> 8;
//	  sFrameInfo->Data[2] = (adcval&0x00ff);
//	  //交流电压
//	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN3 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
//	  adcval = AD7699_data_write_and_read(WriteData);
//	  sFrameInfo->Data[3] = (adcval&0xff00) >> 8;
//	  sFrameInfo->Data[4] = (adcval&0x00ff);
//		//FFT主杂比
//		//待写
//		sFrameInfo->Data[7] = (gADC5767_ADCVal[1]&0xff00) >> 8;
//		sFrameInfo->Data[8] = (gADC5767_ADCVal[1]&0x00ff);
//	 
//	 	/*第三通道*/
//	 
//	  //直流电压
//	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN4 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
//	  adcval = AD7699_data_write_and_read(WriteData);
//	  sFrameInfo->Data[1] = (adcval&0xff00) >> 8;
//	  sFrameInfo->Data[2] = (adcval&0x00ff);
//	  //交流电压
//	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN5 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
//	  adcval = AD7699_data_write_and_read(WriteData);
//	  sFrameInfo->Data[3] = (adcval&0xff00) >> 8;
//	  sFrameInfo->Data[4] = (adcval&0x00ff);
//		//FFT主杂比
//		//待写
//		sFrameInfo->Data[7] = (gADC5767_ADCVal[2]&0xff00) >> 8;
//		sFrameInfo->Data[8] = (gADC5767_ADCVal[2]&0x00ff);
//	 
//	 	/*第四通道*/
//	  
//	  //直流电压
//	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN6 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
//	  adcval = AD7699_data_write_and_read(WriteData);
//	  sFrameInfo->Data[1] = (adcval&0xff00) >> 8;
//	  sFrameInfo->Data[2] = (adcval&0x00ff);
//	  //交流电压
//	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN7 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
//	  adcval = AD7699_data_write_and_read(WriteData);
//	  sFrameInfo->Data[3] = (adcval&0xff00) >> 8;
//	  sFrameInfo->Data[4] = (adcval&0x00ff);
//	 //FFT主杂比
//	 //待写
//	 sFrameInfo->Data[7] = (gADC5767_ADCVal[3]&0xff00) >> 8;
//	 sFrameInfo->Data[8] = (gADC5767_ADCVal[3]&0x00ff);
	}
}

 /*----------------------------------------------------------------------------
** Function name:		FFT_DataRealReport
**
** Descriptions:		FFT实时数据上报
**
 ** parameters:			rData:接收到的数据
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-11-18
**
-------------------------------------------------------------------------------*/
void FFT_DataRealReport(void)
{
		uint8_t temp[RXBUFFERSIZE];
	  uint32_t adcval = 0;
	  uint32_t WriteData = 0;
	  if(FFT_Flag == 0) //不实时上报FFT数据
		{
			return;
		}
		else{
	  FrameInfo_TypeDef *sFrameInfo = (FrameInfo_TypeDef *)&temp;
		sFrameInfo->Head = 0x7e7e;
		sFrameInfo->Command = 0x0C;
		sFrameInfo->SourceID = 0x51;
		sFrameInfo->DestinationID = 0x01;
		sFrameInfo->Tail = 0xFDFD;
	  /*第一通道*/
	  
	  //直流电压
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN0 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[1] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[2] = (adcval&0x00ff);
	  //交流电压
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN1 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[3] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[4] = (adcval&0x00ff);
		//FFT主杂比
		//待写
		sFrameInfo->Data[7] = (gADC5767_ADCVal[0]&0xff00) >> 8;
		sFrameInfo->Data[8] = (gADC5767_ADCVal[0]&0x00ff);
	 
	 	/*第二通道*/
	 
	  //直流电压
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN2 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[1] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[2] = (adcval&0x00ff);
	  //交流电压
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN3 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[3] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[4] = (adcval&0x00ff);
		//FFT主杂比
		//待写
		sFrameInfo->Data[7] = (gADC5767_ADCVal[1]&0xff00) >> 8;
		sFrameInfo->Data[8] = (gADC5767_ADCVal[1]&0x00ff);
	 
	 	/*第三通道*/
	 
	  //直流电压
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN4 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[1] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[2] = (adcval&0x00ff);
	  //交流电压
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN5 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[3] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[4] = (adcval&0x00ff);
		//FFT主杂比
		//待写
		sFrameInfo->Data[7] = (gADC5767_ADCVal[2]&0xff00) >> 8;
		sFrameInfo->Data[8] = (gADC5767_ADCVal[2]&0x00ff);
	 
	 	/*第四通道*/
	  
	  //直流电压
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN6 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[1] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[2] = (adcval&0x00ff);
	  //交流电压
	  WriteData = CFG_OVERWRITE | INCC_UNIPOLAR_TO_GND | IN7 | BW_FULL | REF_IN_4V096 | SEQ_DISABLE | RB_DISABLE;
	  adcval = AD7699_data_write_and_read(WriteData);
	  sFrameInfo->Data[3] = (adcval&0xff00) >> 8;
	  sFrameInfo->Data[4] = (adcval&0x00ff);
	 //FFT主杂比
	 //待写
	 sFrameInfo->Data[7] = (gADC5767_ADCVal[3]&0xff00) >> 8;
	 sFrameInfo->Data[8] = (gADC5767_ADCVal[3]&0x00ff);
	}
}

main.c

/**
* Copyright(C) 2017, 
* ALL rights reserved.
*
* @file    main.c
* @author   MCU Application Team
* @version V0.1   MDK version:4.70.0.0
* @date    9-June-2015
* @brief   Project for WangChangXi
*
*/

/*--------------------------Includes---------------------------------*/
#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "adc.h"
#include "dac.h"
#include "timer.h"
#include "dma.h"
#include "timer.h"
#include "spi.h"
#include "ad5766.h"
#include "ad7699.h"
#include "ad5592.h"
#include "arm_math.h"
#include "arm_const_structs.h"
#include "arm_const_structs.h"
#include "FIR_user.h"
#include <stdlib.h>
#include <stdio.h>
/*--------------------------Private define---------------------------*/
#define SIN_ON              1
#define SIN_OFF

#define DELTA               0.00005f   //误差值
#define FFT_LENGTH		      4096 		//FFT长度,默认是1024点FFT

float fft_inputbuf[FFT_LENGTH*2];	//FFT输入数组
float fft_outputbuf[FFT_LENGTH];	//FFT输出数组
arm_cfft_radix4_instance_f32 scfft;
float time;
extern u16 gUsartOneReceiveFlag;    //接收到一帧数据标志
extern u8 FFT_Flag;                 //FFT实时数据上报标志
extern float32_t testOutput[FFT_LENGTH];               /* 滤波后的输出 */
 ad5766_dev *dev;
/*--------------------------Private volitale------------------------*/
 ad5766_init_param default_init_param = {
//		/* SPI */
//		0,					// spi_chip_select
//		SPI_MODE_1,			// spi_mode
//		SPI_ENGINE,			// spi_type
//		0,					// spi_device_id
//		/* GPIO */
//		PS7_GPIO,			// gpio_type
//		GPIO_DEVICE_ID,		// gpio_device_id
//		GPIO_RESET,			// gpio_reset
		/* Device Settings */
		AD5766_DISABLE,		// daisy_chain_en 禁止菊花链
		AD5766_ZERO,		// clr 上电后保持零电平,中间电平,还是满量程。
		AD5766_M_10V_TO_P_10V,	// span 输出电压范围-10 ~ +10
	  0xfff0,					// pwr_dac_setting :DAC0-DAC4输出通道开启
		0xfff0,					// pwr_dither_setting:DAC0-DAC4输出通道关断
	  0x0000000f,			// dither_signal_setting:DAC0-DAC4 use N0 dither
		0,					    // inv_dither_setting
		0,					   // dither_scale_setting
	};
 
	
	
u8 timeout;
	
extern uint16_t ADC1_ConvertData[2];
/*--------------------------Function declare-------------------------*/
void SinWave(uint8_t flag);
void DeviceInit(void);
void DSP_BasicMatchTest(void);
void SignalGenerate(void);
void FFT_Test(void);
/**----------------------------------------------------------------------------
** @Function:		   main
**
** @Descriptions:	   	
**
** @parameters:			
**                  
**                  
**                  
** @Returned: none
** 
** @Author:  MCU Application Team
**
** @Date: 2017-09-19
**
-------------------------------------------------------------------------------*/


int main(void)
{
	  u16 dacval = 0;
	  u16 adcval = 0;
	  int8_t input = 0;
    uint8_t str[100];
    float fVal = 0;
   //char *str = "hellowankui!\r\n";
	 
	  float temp;
    DeviceInit();
	  printf("Scanf test....\r\n");
//	  printf("\r\n================Choose================\r\n\r\n");
//    printf("\r\n 1:ADN8810 S1\r\n");
//    printf("\r\n 2:ADN8810 S2\r\n");
//    printf("\r\n 3:ADN8810 S3\r\n");
//		printf("\r\n 4:ADN8810 S4\r\n");
//    printf("\r\n======================================\r\n\r\n");
	  //arm_cfft_radix4_init_f32(&scfft,FFT_LENGTH,0,1);//初始化scfft结构体,设定FFT相关参数
    while(1)
    {   
			;
			#if 0
			  //SinWave(SIN_ON);
        HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1,GPIO_PIN_RESET); //LED0对应引脚PB1拉低,亮,等同于LED0(0)
       // HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_SET);   //LED1对应引脚PB0拉高,灭,等同于LED1(1)
        delay_ms(100);										//延时500ms
		    printf("Led0 turn on, led1 turn off.\r\n");
        HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1,GPIO_PIN_SET);   //LED0对应引脚PB1拉高,灭,等同于LED0(1)
       // HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_RESET); //LED1对应引脚PB0拉低,亮,等同于LED1(0)
		    printf("Led1 turn on, led0 turn off.\r\n");
        delay_ms(100);                                      //延时500ms 
			#endif
			
			#if 0
			  dacval = 3103;
			  HAL_DAC_SetValue(&DAC1_Handler,DAC_CHANNEL_1,DAC_ALIGN_12B_R,dacval);//设置DAC值
        delay_ms(10);
		    adcval = HAL_DAC_GetValue(&DAC1_Handler,DAC_CHANNEL_1);//读取前面设置DAC的值
			  temp=(float)adcval*(3.3/4096);			    //得到DAC电压值
			  printf("The DAC Output voltage is: %.3f\r\n", temp);
		 #endif
			
			#if 0
			  adcval=Get_Adc_Average(ADC_CHANNEL_5,10);     //得到ADC转换值	
			  temp=(float)adcval*(3.3/4096);			    //得到DAC电压值
			  printf("The ADC Sample voltage is: %.3f\r\n", temp);
				
			#endif
			if(gUsartOneReceiveFlag == YES)
			{
				gUsartOneReceiveFlag = NO;
				FrameInfoProcess();
			}
		//	FFT_DataRealReport();
		//	HAL_UART_Transmit(&UART1_Handler, (uint8_t*)str, strlen(str)+1, 50);
			//DSP_BasicMatchTest();
			//ADC_DMA_test();
		  //FFT_Test();
		//	printf("Hello world!\r\n");
			//scanf("%s", str);
			//gets((char *)&str);
			printf("\r\n================Choose================\r\n\r\n");
			printf("\r\n 1:ADN8810 S1\r\n");
			printf("\r\n 2:ADN8810 S2\r\n");
			printf("\r\n 3:ADN8810 S3\r\n");
			printf("\r\n 4:ADN8810 S4\r\n");
			printf("\r\n======================================\r\n\r\n");
			gets((char *)&input);
			switch(input)
			{
				case'1':
				{
					printf("ADN8810 S1 Setting\r\n\r\n");
					gets((char *)&str);
					fVal = atof((char *)&str);
					printf("fval = %.5f\r\n\r\n", fVal);
					break;
				}
				case'2':
				{
					printf("ADN8810 S2 Setting\r\n\r\n");
					gets((char *)&str);
					fVal = atof((char *)&str);
					printf("fval = %.5f\r\n\r\n", fVal);
					break;
				}
				case'3':
				{
					printf("ADN8810 S3 Setting\r\n\r\n");
					gets((char *)&str);
					fVal = atof((char *)&str);
					printf("fval = %.5f\r\n\r\n", fVal);
					break;
				}
				case'4':
				{
					printf("ADN8810 S4 Setting\r\n\r\n");
					gets((char *)&str);
					fVal = atof((char *)&str);
					printf("fval = %.5f\r\n\r\n", fVal);
					break;
				}
				default:break;
			}
			//printf("%s\r\n", str);
			//delay_ms(1000);	
		}
}



/*----------------------------------------------------------------------------
** Function name:		SinWave
**
** Descriptions:		
**
** parameters:			
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-09-21
**
-------------------------------------------------------------------------------*/
void SinWave(uint8_t flag)
{

	int i =0;
	if(flag == SIN_ON)
	{
		for(; i<256; i++)
		{
		//	DAC_SetChannel2Data(DAC_Align_12b_R, SinSheet[i]); //DAC_SetChannel2Data(DAC_Align_12b_R, gtemp);
		//	HAL_DAC_SetValue(&DAC1_Handler, DAC_CHANNEL_1, DAC_ALIGN_12B_R, Sin[i]);//设置DAC值
			delay_ms(10);
		}
	}
	else
	{   
			
		//DAC_SetChannel2Data(DAC_Align_12b_R, 0);
	}
}


void DeviceInit(void)
{
    Cache_Enable();                 //打开L1-Cache
    HAL_Init();				              //初始化HAL库
    Stm32_Clock_Init(432,25,2,9);   //设置时钟,216Mhz 
    delay_init(216);                //延时初始化
	  uart_init(115200);		          //串口初始化
    LED_Init();  
    GPIO_Init();	
	 // MY_ADC_Init();
	  //ADC_DMA_Config(DMA2_Stream0, DMA_CHANNEL_0); 
	 // DAC1_Init();
	 // DAC_DMA_Config(DMA1_Stream5, DMA_CHANNEL_7);
	  TIM3_Init(65535,10800-1);        //10Khz计数频率,最大计时6.5秒超出
	 // TIM2_Init(540-1, 2-1);               //定时器2初始化,定时器时钟为108M,分频系数为2-1,
                                         //所以定时器2的频率为108M/2 =54MHz,自动重装载为180-1.
																				 //那么定时器频率为:54MHz/180 = 300KHz,去触发DAC转换。
	                                       //由于正弦波波表100个点,故300KHz/100 = 3KHz。
	 // TIM4_Init(90-1 , 2-1);
	
	  SPI_Init();
	  //FIR_Test();
    //FFT_Test();
	 // ad5766_setup(&dev, default_init_param);
	 // ad5766_set_dac_reg(dev, AD5766_DAC_0|AD5766_DAC_1|AD5766_DAC_2|AD5766_DAC_3, 0xfff); //输出10V Vout={spanxD/N}+Vmin = (10-(-10)x1-10=10V
	 // ad5766_set_pwr_dac(dev, 0x000f);   //
	  //HAL_DAC_SetValue(&DAC1_Handler,DAC_CHANNEL_1,DAC_ALIGN_12B_R,0);//初始值为0
	  
}
/*使用寄存器操作实现跑马灯
int main(void)
{ 
    Cache_Enable();                 //打开L1-Cache
    HAL_Init();				        //初始化HAL库
    Stm32_Clock_Init(432,25,2,9);   //设置时钟,216Mhz 
    delay_init(216);                //延时初始化
	uart_init(115200);		        //串口初始化
    LED_Init();      
	while(1)
	{
      GPIOB->BSRR=GPIO_PIN_1;      //LED0亮
	  GPIOB->BSRR=GPIO_PIN_0<<16;  //LED1灭
	  delay_ms(500);               //延时500ms
      GPIOB->BSRR=GPIO_PIN_1<<16;  //LED0灭
	  GPIOB->BSRR=GPIO_PIN_0;      //LED1亮
	  delay_ms(500);               //延时500ms
	 }
 }	

*/

//sin cos测试
//angle:起始角度
//times:运算次数
//mode:0,不使用DSP库;1,使用DSP库
//返回值:0,成功;0XFF,出错
u8 sin_cos_test(float angle,u32 times,u8 mode)
{
	float sinx,cosx;
	float result;
	u32 i=0;
	if(mode==0)
	{
		for(i=0;i<times;i++)
		{
			cosx=cosf(angle);			//不使用DSP优化的sin,cos函数
			sinx=sinf(angle);
			result=sinx*sinx+cosx*cosx; //计算结果应该等于1  
			result=fabsf(result-1.0f);	//对比与1的差值
			if(result>DELTA)return 0XFF;//判断失败 
			angle+=0.001f;				//角度自增
		}
	}else
	{
		for(i=0;i<times;i++)
		{
            
			cosx=arm_cos_f32(angle);	//使用DSP优化的sin,cos函数
			sinx=arm_sin_f32(angle);
			result=sinx*sinx+cosx*cosx; //计算结果应该等于1  
			result=fabsf(result-1.0f);	//对比与1的差值
			if(result>DELTA)return 0XFF;//判断失败 
			angle+=0.001f;				//角度自增
		}
	}
	return 0;//任务完成
} 


/*----------------------------------------------------------------------------
** Function name:		DSP_BasicMatchTest
**
** Descriptions:		
**
** parameters:			
**                  
**                  
**                  
** Returned value:		none
** 
** Author:  MCU Application Team
**
** Date:2017-09-21
**
-------------------------------------------------------------------------------*/
void DSP_BasicMatchTest(void)
{
	 	float time; 
		u8 buf[50];
		u8 res;
	 	//不使用DSP优化
    __HAL_TIM_SET_COUNTER(&TIM3_Handler,0);//重设TIM3定时器的计数器值
		timeout=0;
		res=sin_cos_test(PI/6,200000,0);
    time=__HAL_TIM_GET_COUNTER(&TIM3_Handler)+(u32)timeout*65536;
	  if(res==0)printf("Not Use DSP test time is:%0.1fms\r\n", time/10);
	  else printf("Not Use DSP test ERROR!\r\n");

		//使用DSP优化		
		__HAL_TIM_SET_COUNTER(&TIM3_Handler,0);//重设TIM3定时器的计数器值
		timeout=0;
		res=sin_cos_test(PI/6,200000,1);
		time=__HAL_TIM_GET_COUNTER(&TIM3_Handler)+(u32)timeout*65536;
	
		if(res==0)printf("Use DSP test time is:%0.1fms\r\n", time/10);
	  else printf("Use DSP test ERROR!\r\n");
		LED0_Toggle;

}



void SignalGenerate(void)
{
	int i;
  float temp = 0;
//		for(i=0; i<ADC_DMA_LEN; i++)
//		{
//			temp=(float)ADC1_ConvertData[i]*(3.3/4096);
//			printf("The ADC1_ConvertData[%d]= %x, vol = %.3f\r\n", i, ADC1_ConvertData[i], temp);
//			delay_ms(100);
//		}
	#if 0
	SCB_DisableDCache();	
	for(i=0;i<FFT_LENGTH;i++)//生成信号序列
	{
//		 fft_inputbuf[2*i]=100+
//											 10*arm_sin_f32(2*PI*i/FFT_LENGTH)+
//							 30*arm_sin_f32(2*PI*i*4/FFT_LENGTH)+
//											 50*arm_cos_f32(2*PI*i*8/FFT_LENGTH);	//生成输入信号实部
		 temp=(float)ADC1_ConvertData[i]*(3.3/4096.0);
		 printf("Temp[%d] = %.3f\r\n", i, temp);
		 fft_inputbuf[2*i] = temp;
		//fft_inputbuf[2*i+1]= 3.3*arm_sin_f32(2*PI*i/FFT_LENGTH);
		fft_inputbuf[2]=0;//虚部全部为0
	}
	SCB_EnableDCache();
	#endif
	for(i=0;i<FFT_LENGTH;i++)//生成信号序列
	{
		 fft_inputbuf[2*i] = testOutput[i];
		 fft_inputbuf[2]=0;//虚部全部为0
	 }

}

void FFT_Test(void)
{
	  
	   int i = 0;
	   float temp;
	   SignalGenerate();
			__HAL_TIM_SET_COUNTER(&TIM3_Handler,0);//重设TIM3定时器的计数器值
			timeout=0;
			//arm_cfft_radix4_f32(&scfft,fft_inputbuf);	//FFT计算(基4)
      
	
	    /* CFFT变换 */ 
			arm_cfft_f32(&arm_cfft_sR_f32_len4096, fft_inputbuf, 0, 1);
			time=__HAL_TIM_GET_COUNTER(&TIM3_Handler)+(u32)timeout*65536;//计算所用时间
//			sprintf((char*)buf,"%0.3fms\r\n",time/1000);	
//			LCD_ShowString(30+12*8,160,100,16,16,buf);	//显示运行时间	
      printf("\r\n------------------Start of FFT Test-------------------------\r\n");
			arm_cmplx_mag_f32(fft_inputbuf,fft_outputbuf,FFT_LENGTH);	//把运算结果复数求模得幅值 
			printf("\r\n%d point FFT runtime:%0.3fms\r\n",FFT_LENGTH,time/1000);
			printf("FFT Result:\r\n");
	    printf("\r\n------------------End of FFT Test-------------------------\r\n");
			for(i=0;i<FFT_LENGTH;i++)
			{
				printf("%.5f,",fft_outputbuf[i]);
				delay_ms(2);	
			}
			printf("\r\n------------------End of FFT Test-------------------------\r\n");
		
	
}
	

实验效果:

STM32 中重定向printf 和 scanf