STM32-Player-Doc/STM32H743VI 开发版/STM32H750驱动例程(HAL库)/例22 DMA实验/USER/main.c

#include "sys.h" 
#include "usart.h" 
#include "delay.h" 
#include "led.h"
#include "key.h"

#include "LCD.h"
#include "Dis_Picture.h" 
#include "Text.h"	
#include "GBK_LibDrive.h"	

#include "mpu.h"

#include "dma.h" 

/*********************************************************************/
//DMA ʵ<><CAB5>  

//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox  <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com		

/*********************************************************************/


#define SEND_BUF_SIZE 7800	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>,<2C><><EFBFBD>õ<EFBFBD><C3B5><EFBFBD>sizeof(TEXT_TO_SEND)+2<><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.

u8 SendBuff[SEND_BUF_SIZE];	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><DDBB><EFBFBD><EFBFBD><EFBFBD>
const u8 TEXT_TO_SEND[]={" mcudev.taobao.com STM32H7XXX DMA <20><><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>  "};	

	u16 i;
	u8 t=0;
	u8 j,mask=0;
	float pro=0;

u8 tbuf[32];

int main(void)
{

	Cache_Enable();					      //<2F><><EFBFBD><EFBFBD>L1-Cache
	Stm32_Clock_Init(160,5,2,4);	//<2F><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>,400Mhz 
	HAL_Init();				            //<2F><>ʼ<EFBFBD><CABC>HAL<41><4C>
	delay_init(400);		      		//<2F><>ʱ<EFBFBD><CAB1>ʼ<EFBFBD><CABC>
	uart_init(115200);			     	//<2F><><EFBFBD>ڳ<EFBFBD>ʼ<EFBFBD><CABC>
	LED_Init();				         		//<2F><>ʼ<EFBFBD><CABC>LEDʱ<44><CAB1>
	KEY_Init();
	
	MPU_Memory_Protection();		//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ش洢<D8B4><E6B4A2><EFBFBD><EFBFBD>
	
	LCD_Init();            //<2F><>ʼ<EFBFBD><CABC>2.0<EFBFBD><EFBFBD> 240x320 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>  LCD<43><44>ʾ
	GBK_Lib_Init();        //Ӳ<><D3B2>GBK<42>ֿ<EFBFBD><D6BF><EFBFBD>ʼ<EFBFBD><CABC>--(<28><><EFBFBD><EFBFBD>ʹ<EFBFBD>ò<EFBFBD><C3B2><EFBFBD><EFBFBD>ֿ<EFBFBD><D6BF><EFBFBD>Һ<EFBFBD><D2BA><EFBFBD><EFBFBD><EFBFBD>汾<EFBFBD><E6B1BE><EFBFBD>˴<EFBFBD><CBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD><CEA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֿ<EFBFBD><D6BF><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
	LCD_Clear(WHITE);      //<2F><><EFBFBD><EFBFBD>  
	
	
	MYDMA_Config(DMA2_Stream7);		//<2F><>ʼ<EFBFBD><CABC>DMA
	
	Draw_Font16B(16,16,RED,"  STM32H7 DMA    ");
  Draw_Font16B(16,32,BLUE,"  Ƕ<><C7B6>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>   ");	 
	Draw_Font16B(16,48,BLUE,"mcudev.taobao.com"); 
	Draw_Font24B(16,64,RED, "KEY2:Start"); 

	//<2F><>ʾ<EFBFBD><CABE>ʾ<EFBFBD><CABE>Ϣ	
	j=sizeof(TEXT_TO_SEND);	 
  
	for(i=0;i<SEND_BUF_SIZE;i++)//<2F><><EFBFBD><EFBFBD>ASCII<49>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	{
		if(t>=j)//<2F><><EFBFBD>뻻<EFBFBD>з<EFBFBD>
		{
			if(mask)
			{
				SendBuff[i]=0x0a;
				t=0;
			}else 
			{
				SendBuff[i]=0x0d;
				mask++;
			}	
		}
		else//<2F><><EFBFBD><EFBFBD>TEXT_TO_SEND<4E><44><EFBFBD><EFBFBD>
		{
			mask=0;
			SendBuff[i]=TEXT_TO_SEND[t];
			t++;
		}   	   
	}		 
	POINT_COLOR=BLUE;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ɫ	  
	i=0;
	while(1)
	{
		t=KEY_Scan(0);
		
		if(t==KEY2_PRES)//KEY0<59><30><EFBFBD><EFBFBD>
		{
			printf("\r\nDMA DATA:\r\n"); 	  
			
			Draw_Font24B(8,90,RED, "Start Transimit..  ");
			Draw_Font24B(8,120,RED,"   %               ");//<2F><>ʾ<EFBFBD>ٷֺ<D9B7>
			
			HAL_UART_Transmit_DMA(&UART1_Handler,SendBuff,SEND_BUF_SIZE);//<2F><><EFBFBD><EFBFBD>DMA<4D><41><EFBFBD><EFBFBD>
			
			  //ʹ<>ܴ<EFBFBD><DCB4><EFBFBD>1<EFBFBD><31>DMA<4D><41><EFBFBD>͵ȴ<CDB5>DMA<4D><41><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һЩ<D2BB>£<EFBFBD><C2A3><EFBFBD><EFBFBD><EFBFBD>
		    //ʵ<><CAB5>Ӧ<EFBFBD><D3A6><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ䣬<DABC><E4A3AC><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		  while(1)
		    {
          if(__HAL_DMA_GET_FLAG(&UART1TxDMA_Handler,DMA_FLAG_TCIF3_7))//<2F>ȴ<EFBFBD>DMA2_Steam7<6D><37><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
            {
               __HAL_DMA_CLEAR_FLAG(&UART1TxDMA_Handler,DMA_FLAG_TCIF3_7);//<2F><><EFBFBD><EFBFBD>DMA2_Steam7<6D><37><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɱ<EFBFBD>־
               HAL_UART_DMAStop(&UART1_Handler);      //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ժ<EFBFBD><D4BA>رմ<D8B1><D5B4><EFBFBD>DMA
					     break; 
            }
						
					pro=__HAL_DMA_GET_COUNTER(&UART1TxDMA_Handler);//<2F>õ<EFBFBD><C3B5><EFBFBD>ǰ<EFBFBD><C7B0>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD>ٸ<EFBFBD><D9B8><EFBFBD><EFBFBD><EFBFBD>
							
					pro=1-pro/SEND_BUF_SIZE;    //<2F>õ<EFBFBD><C3B5>ٷֱ<D9B7>	 
							
					pro*=100;      			    //<2F><><EFBFBD><EFBFBD>100<30><30>
					sprintf((char*)tbuf,"%5.2f % ",pro); //<2F><>ʾ<EFBFBD>޷<EFBFBD><DEB7><EFBFBD>ʮ<EFBFBD><CAAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>		
					Draw_Font24B(16,120,RED, tbuf);//<2F><>ʾ<EFBFBD>ٷֺ<D9B7>//<2F><>ʾ100%	
						
		    }
				
			Draw_Font24B(8,120,RED, "100%               ");//<2F><>ʾ<EFBFBD>ٷֺ<D9B7>//<2F><>ʾ100%	  
		  Draw_Font24B(8,90, RED, "Transimit Finished!");//<2F><>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		}
		i++;
		delay_ms(10);
		if(i==20)
		{
			LED2_Toggle;//<2F><>ʾϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>	
			i=0;
		}		   
	}
}
























/*********************************************************************/
//DMA ʵ<><CAB5>  

//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox  <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com		

/*********************************************************************/