coms_sencor.c

开发环境ADSP6++,EBF_561开发板所有源代码

#include "I2C.h"


EX_INTERRUPT_HANDLER(DMA0_PPI_ISR);

void Init_EBIU(void);
void Init_CPLD(void);
void Init_PLL(void);
void Init_SDRAM(void);
void Init_PPI(void);
void Init_DMA(void);
                                                               
unsigned short PPI_DMA_DONE;
unsigned char dataIn[40];

main()
{
	int o = 0;
	bool ret = true;

   	Set_PLL( (short)(CORECLK/CLKIN), (short)(CORECLK/SYSCLK)); 
    Init_EBIU();
    
    //Initial Interrupt 
    register_handler(ik_ivg8,DMA0_PPI_ISR);
    *pSICB_IMASK0 = 0x00000800;
	
   
    Init_CPLD();

/*	
    I2C_Init(MT9V11X_IDENT_W);
 
  	
	I2C_Read(&dataIn[0],&dataIn[1],0x00);
	I2C_Read(&dataIn[2],&dataIn[3],0xc8);
	I2C_Write(0x00,0x01,0xf0);
	I2C_Read(&dataIn[4],&dataIn[5],0xf0);
	I2C_Write(0x0a,0x00,0x3a);
	I2C_Write(0x0a,0x00,0x9b);
	//I2C_Write(0x02,0x80,0xa7);
	I2C_Write(0x01,0x40,0xa7);
	//I2C_Write(0x01,0xe0,0xaa);
	I2C_Write(0x00,0xf0,0xaa);
	//I2C_Write(0x04,0x80,0x08);
	I2C_Read(&dataIn[6],&dataIn[7],0x3a);
	I2C_Read(&dataIn[8],&dataIn[9],0x08);
	
	I2C_Write(0x00,0x02,0xf0);
	I2C_Write(0x80,0x00,0xc8);
	
	I2C_Write(0x00,0x00,0xf0);
	I2C_Read(&dataIn[10],&dataIn[11],0x05);

	
	if((dataIn[0] != 0x12) || (dataIn[1] != 0x29))
	{
		while(1);
	}
	
*/
    I2C_Init(MT9V111_IDENT_W);
    
 	I2C_Write(0x00,0x04,0x01);//CORE
    //I2C_Write(0x01,0x28,0x03);
  	//I2C_Write(0x01,0x6c,0x04);
  	//I2C_Write(0x30,0x02,0x07);
	I2C_Read(&dataIn[0],&dataIn[1],0x36);
	I2C_Read(&dataIn[2],&dataIn[3],0x03);
	I2C_Read(&dataIn[4],&dataIn[5],0x04);
	I2C_Read(&dataIn[6],&dataIn[7],0x07);
	
	I2C_Write(0x00,0x01,0x01);//ifp
	
	I2C_Write(0x01,0x60,0xa7);
	I2C_Write(0x01,0x20,0xaa);
	
	I2C_Read(&dataIn[8],&dataIn[9],0x08);
	
	
	
	

	
	if((dataIn[0] != 0x82) || (dataIn[1] != 0x3a))
	{
		while(1);
	}
		Init_DMA();
		Init_PPI();
	
		*pDMA1_0_CONFIG = *pDMA1_0_CONFIG | 0x0001;
		ssync();
		*pPPI0_CONTROL = *pPPI0_CONTROL | 0x0001;
		ssync();

		*pTIMER8_CONFIG = 0x0003;
		asm("ssync;");
		*pTIMER9_CONFIG = 0x0003;
		asm("ssync;");
		*pTMRS4_ENABLE = 0x0003;
		asm("ssync;");	
	


	
		while(1);

}


void Init_CPLD(void)
{ 
	int i;
	
	*pCtrlReg1_S= 0x18;
	for(i = 0;i < 10000;i++);
	*pLED = 0x0;
	for(i = 0;i < 10000;i++);

}

void Init_EBIU(void)
{
	
	*pEBIU_AMBCTL0	= 0x7bb07bb0;	// <--|Write access time = 7 cycles, read access time = 11 cycles, no ARDY
	*pEBIU_AMBCTL1	= 0x7bb07bb0;	//    |Hold time = 2 cycles, setup time = 3 cycles, transition time = 4 cycles
	*pEBIU_AMGCTL	= 0x00fF;		//	  |Enable all memory banks

}//end Init_EBIU


void Init_PPI(void)
{
	*pPPI0_FRAME = 500  ;
//	*pPPI0_COUNT = 1279;
	*pPPI0_COUNT = 703;
	*pPPI0_DELAY = 0;
	*pPPI0_CONTROL = 0x001c;
}

void Init_DMA(void)
{

	//Target address of the DMA
	*pDMA1_0_START_ADDR = 0x0;	

	//RAM_Length 32bit transfers will be executed
	//*pDMA1_0_X_COUNT = 1280;
	*pDMA1_0_X_COUNT = 352;

	//The modifier is set to 4 because of the 32bit transfers
	*pDMA1_0_X_MODIFY = 0x1;
	*pDMA1_0_Y_COUNT	= 1000;
	*pDMA1_0_Y_MODIFY = 0x1;													

	//PPI Peripheral is used
	*pDMA1_0_PERIPHERAL_MAP = 0x0;	
	
	//DMA Config: Enable DMA | Memory write DMA | Discard DMA FIFO before start | enable assertation of interrupt | NDSIZE for stop mode | Enable STOP DMA
	//Enable 2D-DMA
	*pDMA1_0_CONFIG = 0x00b2;//0x00ba;	
	//*pDMA0_CONFIG = DMAEN | DI_EN | WNR | WDSIZE_32 | RESTART | DMA2D ;//| DI_SEL;	
	

}//end Init_DMA

EX_INTERRUPT_HANDLER(DMA0_PPI_ISR)	// <--|declaration in  exception.h -->
{
//disable the interrupt request
        	*pDMA1_0_IRQ_STATUS = 0x1;   // to clear interrupt bit	
	        //temp2 = *pPPI_CONTROL;
	        *pPPI0_CONTROL &= 0xfffe;
	       printf( "\nThe DMA0 PPI Interrupt has been entered!\n" );
	      // PPI_DMA_DONE = 1;
}