extflash.c

利用zigbee进行定位的程序

//----------------------------------------------------//
//-------Institute Of  Computing Technology-----------//
//------------Chinese Academic  Science---------------//
//-----中国科学院计算技术研究所先进测试技术实验室-----//
//----------------------------------------------------//

/**
 * @copyright:nbicc_lpp
 * @this is this is extflash support  code
 * @author 
 *              zhouqiang      ([e-mail])
 *              
 * @data:2005.12.29
 * @version:0.0.1
 * @updata:$
 *
 */
#include "extflash.h"
//--------------------------------
//FLASH_IN--so
//FLASH_OUT--si
//FLASH_CLK--sck
//FLASH_SELECT----cs
//--------------------------------
 

  //OS_SET_FLASH_SELECT_PIN();
inline void extflash_ini(void)
{
	OS_MAKE_FLASH_SELECT_OUTPUT();
  	OS_MAKE_FLASH_OUT_OUTPUT();
	OS_MAKE_FLASH_IN_INPUT();
       OS_MAKE_FLASH_CLK_OUTPUT();
	   
       OS_SET_FLASH_SELECT_PIN();
	flash_busy=0;
       /*another method
	//----------------------------
	//initial uart1 to syn model
	//----------------------------
	
	 UCSR1B = 0x00; //disable while setting baud rate
	 UCSR1A = 0x03;
	 UCSR1C = 0x41;
	 UBRR1L = 0x22; //set baud rate lo
	 UBRR1H = 0x00; //set baud rate hi
	 UCSR1B = 0x18;
       //115200 
	//----------------------------
	*/
}
inline static  void sendonebyte(uint8_t byte)
{
    
	uint8_t  tempbyte;
	tempbyte=byte;
	{ os_atomic_t _nesc_atomic = os_atomic_start();
   				 {
	for (int i=0;i<8;i++)
		{
			
			OS_CLR_FLASH_CLK_PIN();
			
			if (tempbyte&0x80)
				{
					
					PORTD|=_BV(PIND3);
					
				}
			else
				{
					
					PORTD&=~_BV(PIND3);
					
				}
			
			//printf("\nPD is %02x\n",PORTD);
			OS_SET_FLASH_CLK_PIN();
			
			
			tempbyte<<=1;
		}
      
        	}
			 os_atomic_end(_nesc_atomic); }
}

inline static  uint8_t readonebyte(void)
{
       
	uint8_t tempbyte=0;
	{ os_atomic_t _nesc_atomic = os_atomic_start();
   				 {
	for (int i=0;i<7;i++)
		{
			OS_CLR_FLASH_CLK_PIN();
			OS_SET_FLASH_CLK_PIN();
			//printf("\nPD is %02x\n",PIND);
			if (PIND&_BV(PIND2))
				tempbyte|=0x01;
			else
				tempbyte&=0xfe;
			//OS_CLR_FLASH_CLK_PIN();
			
			tempbyte<<=1;
		}
	OS_CLR_FLASH_CLK_PIN();
       OS_SET_FLASH_CLK_PIN();
	   
	
	//printf("\nPD is %02x\n",PIND);
	if (PIND&_BV(PIND2))
		tempbyte|=0x01;
	else
		tempbyte&=0xfe;
	//OS_CLR_FLASH_CLK_PIN();
	//printf("\ntempbyte  is %02x\n",tempbyte);	
	}
	os_atomic_end(_nesc_atomic); }
	return tempbyte;
			
	
	
}
void Continuous_Array_Read(uint16_t address,uint16_t page,uint8_t * buffer,uint16_t numbers)
{
	extflash_head temphead;
	uint8_t * tempbuffer;
	tempbuffer=buffer;
	uint16_t tempnumbers;
	tempnumbers=numbers;
	temphead._extflash_head.opcode=Continuou_Array_Read;
	temphead._extflash_head.page=page&0x07ff;
	temphead._extflash_head.block_byte=address&0x01ff;

	//OS_CLR_FLASH_CLK_PIN();
	
	OS_CLR_FLASH_SELECT_PIN();//选通flash
		sendonebyte(temphead.v[3]);
		sendonebyte(temphead.v[2]);
		sendonebyte(temphead.v[1]);
		sendonebyte(temphead.v[0]);
		
		//------------------------------------
		sendonebyte(0x00);
		sendonebyte(0x00);
		sendonebyte(0x00);
		sendonebyte(0x00);
		//------------------------------------
		for (uint16_t i=0;i<tempnumbers;i++)
			{
				tempbuffer[i]=readonebyte();
			}
	OS_SET_FLASH_SELECT_PIN();
	
}

void Main_Memory_PageRead(uint16_t page,uint16_t address,uint8_t * buffer,uint16_t numbers)
{
	extflash_head temphead;
	uint8_t  * tempbuffer=buffer;
	uint16_t tempnumbers;
	tempnumbers=numbers;
	temphead._extflash_head.opcode=Main_Memory_Page_Read;
	temphead._extflash_head.page=page&0x07ff;
	temphead._extflash_head.block_byte=address&0x01ff;
	
	OS_CLR_FLASH_SELECT_PIN();//选通flash
	
		sendonebyte(temphead.v[3]);
		sendonebyte(temphead.v[2]);
		sendonebyte(temphead.v[1]);
		sendonebyte(temphead.v[0]);
		//for (int i=0;i<4;i++)
		//	printf("\nsend %02x\n",temphead.v[i]);
		sendonebyte(0x00);
		sendonebyte(0x00);
		sendonebyte(0x00);
		sendonebyte(0x00);
		//------------------------------------
		for (uint16_t i=0;i<tempnumbers;i++)
			{
				tempbuffer[i]=readonebyte();
			}
		
	OS_SET_FLASH_SELECT_PIN();
}

void Buffer_Read(uint8_t buffernum,uint16_t address,uint16_t numbers,uint8_t* buffer)//use buffer1_read or buffer2_read
{
	extflash_head temphead;
	uint8_t  * tempbuffer=buffer;
	temphead._extflash_head.opcode=buffernum;
	temphead._extflash_head.page=0x0000;
	temphead._extflash_head.block_byte=address&0x01ff;
	
	OS_CLR_FLASH_SELECT_PIN();//选通flash
	
		sendonebyte(temphead.v[3]);
		sendonebyte(temphead.v[2]);
		sendonebyte(temphead.v[1]);
		sendonebyte(temphead.v[0]);
		//for (int i=0;i<4;i++)
		//	printf("\nsend %02x\n",temphead.v[i]);
		sendonebyte(0x00);
		for (int i=0;i<numbers;i++)
			{
				tempbuffer[i]=readonebyte();
			}
		
	OS_SET_FLASH_SELECT_PIN();
}

uint8_t  Status_Register_Get(void)
{
	extflash_head temphead;
	uint8_t state=0;
	temphead._extflash_head.opcode=Status_Register_Read;
	temphead._extflash_head.page=0x0000;
	temphead._extflash_head.block_byte=0x0000;
	{ os_atomic_t _nesc_atomic = os_atomic_start();
   				 {
	OS_CLR_FLASH_SELECT_PIN();//选通flash
	
		sendonebyte(temphead.v[3]);
		state=readonebyte();
			
		
	OS_SET_FLASH_SELECT_PIN();
		
	}
	os_atomic_end(_nesc_atomic); }
	return state;
}

void Buffer_Write(uint8_t buffernum,uint16_t address,uint16_t numbers,uint8_t* buffer )//use buffer1_write or buffer2_write
{
	extflash_head temphead;
	uint8_t  * tempbuffer=buffer;
	uint16_t tempnumbers=numbers;
	temphead._extflash_head.opcode=buffernum;
	temphead._extflash_head.page=0x0000;
	temphead._extflash_head.block_byte=address&0x01ff;
	
	OS_CLR_FLASH_SELECT_PIN();//选通flash
		sendonebyte(temphead.v[3]);
		sendonebyte(temphead.v[2]);
		sendonebyte(temphead.v[1]);
		sendonebyte(temphead.v[0]);
		//for (int i=0;i<4;i++)
		//	printf("\nsend %02x\n",temphead.v[i]);
		//printf("\nbegin write to buffer\n");
		for (int i=0;i<tempnumbers;i++)
			{
				sendonebyte(tempbuffer[i]);
			}
	OS_SET_FLASH_SELECT_PIN();
}


void Buffer_To_Main_Erase(uint8_t buffernum,uint16_t page)
{
	extflash_head temphead;
	
	temphead._extflash_head.opcode=buffernum;
	temphead._extflash_head.block_byte=0x0000;
	temphead._extflash_head.page=page&0x07ff;
	
	OS_CLR_FLASH_SELECT_PIN();//选通flash
		sendonebyte(temphead.v[3]);
		sendonebyte(temphead.v[2]);
		sendonebyte(temphead.v[1]);
		sendonebyte(temphead.v[0]);
		//for (int i=0;i<4;i++)
		//	printf("\nsend %02x\n",temphead.v[i]);
		//printf("\nbegin write to buffer\n");
		
	OS_SET_FLASH_SELECT_PIN();
}

void Buffer_To_Main_noErase(uint8_t buffernum,uint16_t page)//不推荐使用，使用前需要先pageerase
{
	extflash_head temphead;
	
	temphead._extflash_head.opcode=buffernum;//use Buffer1_Main_noErase or Buffer2_Main_noErase
	temphead._extflash_head.block_byte=0x0000;
	temphead._extflash_head.page=page&0x07ff;
	
	OS_CLR_FLASH_SELECT_PIN();//选通flash
		sendonebyte(temphead.v[3]);
		sendonebyte(temphead.v[2]);
		sendonebyte(temphead.v[1]);
		sendonebyte(temphead.v[0]);
	
	OS_SET_FLASH_SELECT_PIN();
}

void PageErase(uint16_t page)
{
	extflash_head temphead;
	
	temphead._extflash_head.opcode=Page_Erase;
	temphead._extflash_head.block_byte=0x0000;
	temphead._extflash_head.page=page&0x07ff;
	
	//OS_CLR_FLASH_CLK_PIN();
	
	OS_CLR_FLASH_SELECT_PIN();//选通flash
		sendonebyte(temphead.v[3]);
		sendonebyte(temphead.v[2]);
		sendonebyte(temphead.v[1]);
		sendonebyte(temphead.v[0]);
	OS_SET_FLASH_SELECT_PIN();

}


void Memory_Pageprogram_throuth_Buffer(uint8_t buffernum,uint16_t page,uint16_t address,uint16_t numbers,uint8_t * buffer)
{
	extflash_head temphead;
	uint16_t tempnumbers=numbers;
	uint8_t *tempbuffer=buffer;
	temphead._extflash_head.opcode=buffernum;
	temphead._extflash_head.block_byte=address&0x01ff;
	temphead._extflash_head.page=page&0x07ff;

	OS_CLR_FLASH_SELECT_PIN();//选通flash
		sendonebyte(temphead.v[3]);
		sendonebyte(temphead.v[2]);
		sendonebyte(temphead.v[1]);
		sendonebyte(temphead.v[0]);
		for (int i=0;i<tempnumbers;i++)
			{
				sendonebyte(tempbuffer[i]);
			}
	OS_SET_FLASH_SELECT_PIN();
}

//-----------------------------------------------------------------------------------//
//-----------Adiitional_Commands函数完成三个功能:
//-----------1.main memory page to buffer transfer
//-----------2.main memory page to buffer compare
//-----------3.auto page rewrite
//-----------commandtype list:
//-------------------------1.Auto_Page_Rewrite_Buffer1 or Auto_Page_Rewrite_Buffer2
//-------------------------2.Main_Pageto_Buffer1_compare or Main_Pageto_Buffer2_compare
//-------------------------3.Main_Pageto_Buffer1 or Main_Pageto_Buffer2
//-----------------------------------------------------------------------------------//
void Adiitional_Commands(uint8_t commandtype,uint16_t page)
{
	extflash_head temphead;
	
	temphead._extflash_head.opcode=commandtype;
	temphead._extflash_head.block_byte=0x0000;
	temphead._extflash_head.page=page&0x07ff;
		
	OS_CLR_FLASH_SELECT_PIN();//选通flash
		sendonebyte(temphead.v[3]);
		sendonebyte(temphead.v[2]);
		sendonebyte(temphead.v[1]);
		sendonebyte(temphead.v[0]);
	OS_SET_FLASH_SELECT_PIN();
}