dps2812_eeprom.c.bak

SPI接口EEPROM驱动 EEPROMWRITE（绝对地址

#include "DSP28_Device.h"
#include "EEPROM.h"
unsigned int Spi_VarRx[155];
unsigned int i,j,i1;
//unsigned int EEPROM_Read1(void);
inline Uint16 EEPROM_Read1(void);
unsigned int *ram_addr = (unsigned int *)0x100000;
unsigned int send_counter,down_counter,page_counter,eeprom_addr;

void main(void)
{
	/*初始化系统*/
	InitSysCtrl();
	/* 关中断 */
	DINT;
	IER = 0x0000;
	IFR = 0x0000;
	/* 初始化PIE控制寄存器 */
	InitPieCtrl();
	/* 初始化PIE参数表 */
	InitPieVectTable();	
	/* 初始化外设寄存器 */
	InitPeripherals();
	eeprom_addr = 0x0000;
	send_counter = 0;
	page_counter = 0;
	down_counter = 155;  //假设有的数据
    	for(i = 0; i < 32000; i++)
    	{
    	*(ram_addr+i)=i+1;///~~~~~~~~~~~~~~~
    	}
    	for(i = 0; i < 155; i++)
    	{
    		Spi_VarRx[i] = 0;
    	}
    	i = 0;
    	j = 0;	
   		/* 开中断 */
	EINT;   // Enable Global interrupt INTM
	ERTM;	// Enable Global realtime interrupt DBGM
////////////////////////////////////////////////////////
//eeprom按页写：64字节/页
/*///////////////////////////////////////////////////////	
	EEPROM_Write_Enable();
	EEPROM_Write_write(eeprom_addr);
	for(send_counter=0;send_counter!=down_counter;)
	{
		if(page_counter != 64)	
		{
			SpiaRegs.SPITXBUF =(*(ram_addr+send_counter) << 8) & 0xff00;
			delay_time(50);   //25000 1500 500 100
			page_counter++;
			send_counter++;			
		}
		else
		{
			GpioDataRegs.GPFDAT.bit.GPIOF3 = 1;
            while((EEPROM_Read_Status()&0x01) == 0x01);
			page_counter = 0;
			eeprom_addr = eeprom_addr + 64;
			EEPROM_Write_Enable();  
			EEPROM_Write_write(eeprom_addr);	//更新写入页地址		
		}
	}
	GpioDataRegs.GPFDAT.bit.GPIOF3 = 1;//写完
	*/
	while((EEPROM_Read_Status()&0x01) == 0x01);
	while(Spi_TxReady() == 0);
	GpioDataRegs.GPFDAT.bit.GPIOF3 = 0;
	SpiaRegs.SPITXBUF = READ;
	while(Spi_TxReady() == 0);
	SpiaRegs.SPITXBUF = 0x0000;
	//for(i = 0; i < 10000; i++);
	while(Spi_TxReady() == 0);
	SpiaRegs.SPITXBUF = 0x0000 << 8;
	while(Spi_TxReady() == 0);
	SpiaRegs.SPITXBUF = 0x5500;
	for(j = 0; j < 100; j++);
	while(Spi_RxReady() == 0);
	/////////////////////////
	for(i1 = 0; i1 < down_counter; i1++)
	{
    	Spi_VarRx[i1] = EEPROM_Read1();
    }    	  	
	for(;;)
	{

	}
} 	
//===========================================================================
/*inline Uint16 SPIA_Transmit(void)
{
Uint16 recvData;
while( Spi_TxReady() == 0);
recvData = SPIARegs.SPIRXBUF;
while( Spi_TxReady() == 0);
SPIARegs.SPITXBUF = 0x5500;
for(j = 0; j < 100; j++);
while(Spi_RxReady() == 0);
delay_time(50);
return recvData;
}*/
/////////////////////////////////////////
//unsigned int
inline Uint16 EEPROM_Read1(void)
{
	//unsigned int data;
	Uint16  data;
	data = SpiaRegs.SPIRXBUF;
	while(Spi_TxReady() == 0);
	SpiaRegs.SPITXBUF = 0x5500;
	for(j = 0; j < 100; j++);
	while(Spi_RxReady() == 0);
	delay_time(50);/////////250
	return data;
}