8051單片機(jī)操作K9KF5608 FLASH存儲器程序
#include
#include
#include
#include
sbit FLASH_CLE=P1^0;
sbit FLASH_ALE=P1^1;
sbit FLASH_WE=P1^2;
sbit FLASH_WP=P1^3;
sbit FLASH_CE=P1^4;
sbit FLASH_RD=P1^5;
sbit FLASH_RB=P1^6;
void WriteCommand(unsigned char command);
void WriteAddress(
unsigned char H_ADR, //A16~A23 列地址
unsigned char M_ADR, //A8~A15
unsigned char L_ADR //A0~A7 行地址
);
void WRITEBYTE(unsigned char Wdata); //寫一個數(shù)據(jù)到FLASH
unsigned char READBYTE(); //從FLSAH讀一個數(shù)據(jù)
void REC_data_process(unsigned char Rdata); //接收adclass=0&app_id=0&c=news&cf=1001&ch=0&di=128&fv=17&is_app=0&jk=fbb35db267215cd4&k=%CA%FD%BE%DD%B4%A6%C0%ED&k0=%CA%FD%BE%DD%B4%A6%C0%ED&kdi0=0&luki=4&n=10&p=baidu&q=98059059_cpr&rb=0&rs=1&seller_id=1&sid=d45c2167b25db3fb&ssp2=1&stid=0&t=tpclicked3_hc&tu=u1831118&u=http%3A%2F%2Fwww%2E51hei%2Ecom%2Fmcu%2F2168%2Ehtml&urlid=0" id="2_nwl" mpid="2" target="_blank">數(shù)據(jù)處理,讀一頁時,每讀一次處理一次
void READ_onepage1(); //連續(xù)讀一頁數(shù)據(jù)(528字節(jié))
//--------------------------------------------------------------------------------------------------
// 函數(shù)名稱: WriteCommand
// 入口參數(shù): command命令字
// 函數(shù)功能: 寫命令字,開始各種操作
//--------------------------------------------------------------------------------------------------
void WriteCommand(unsigned char command)
{
FLASH_ALE=0;
FLASH_CE=0;
FLASH_CLE=1;
FLASH_WE=0;
P0=command;
FLASH_WE=1;
FLASH_CLE=0;
FLASH_ALE=1;
}
//--------------------------------------------------------------------------------------------------
// 函數(shù)名稱: WriteAddress
// 入口參數(shù): H_ADR,M_ADR,L_ADR 行列地址
// 函數(shù)功能: 寫地址
//--------------------------------------------------------------------------------------------------
void WriteAddress(
unsigned char H_ADR, //A16~A23 列地址
unsigned char M_ADR, //A8~A15
unsigned char L_ADR //A0~A7 行地址
)
{
FLASH_WE=1;
FLASH_CE=0;
FLASH_CLE=0;
FLASH_ALE=1;
FLASH_WE=0;
P0=L_ADR;
FLASH_WE=1;
_nop_();
FLASH_WE=0;
P0=M_ADR;
FLASH_WE=1;
_nop_();
FLASH_WE=0;
P0=H_ADR;
FLASH_WE=1;
_nop_();
FLASH_ALE=0;
}
//--------------------------------------------------------------------------------------------------
// 函數(shù)名稱: WRITEBYTE
// 入口參數(shù): Wdata要寫入 FLASH的數(shù)據(jù)
// 函數(shù)功能: 寫一個數(shù)據(jù)到FLASH
//--------------------------------------------------------------------------------------------------
void WRITEBYTE(unsigned char Wdata) //寫一個數(shù)據(jù)到FLASH
{
FLASH_WE=1;
FLASH_CLE=0;
FLASH_CE=0;
FLASH_ALE=0;
FLASH_WE=0;
_nop_();
P0=Wdata;
_nop_();
FLASH_WE=1;
}
//--------------------------------------------------------------------------------------------------
// 函數(shù)名稱: READBYTE
// 出口參數(shù): Rdata從FLASH讀出的數(shù)據(jù)
// 函數(shù)功能: 從FLSAH讀一個數(shù)據(jù)
//--------------------------------------------------------------------------------------------------
unsigned char READBYTE() //從FLSAH讀一個數(shù)據(jù)
{
unsigned char Rdata;
FLASH_WE=1;
FLASH_CLE=0;
FLASH_ALE=0;
FLASH_CE=0;
FLASH_RD=0; //準(zhǔn)備好讀入
_nop_();
_nop_();
while(!FLASH_RB)//當(dāng)讀信號無效時,等待
{
}
Rdata=P0; //把P0口讀出的值存入ACC寄存器
//插入2個機(jī)器周期
_nop_();
_nop_();
FLASH_RD=1; //不再讀入
return(Rdata);
}
unsigned char READ_Status()
{
unsigned char Status;
WriteCommand(0x70);
Status=READBYTE();
return(Status);
}
//--------------------------------------------------------------------------------------------------
// 函數(shù)名稱: READ_onepage1
// 調(diào)用函數(shù): WriteCommand
// WriteAddress
// REC_data_process();每接收一個數(shù)據(jù),處理
// 函數(shù)功能: 連續(xù)讀一頁數(shù)據(jù)(528字節(jié))
//--------------------------------------------------------------------------------------------------
void READ_onepage1() //連續(xù)讀一頁數(shù)據(jù)(528字節(jié))
{
unsigned char d=528;
unsigned char Rec_data;
WriteCommand(0x00); //寫讀的命令0x00或0x01
WriteAddress(0x00,0x00,0x00); //寫讀的地址
while(d>0)
{
Rec_data=READBYTE();
REC_data_process(Rec_data);
d--;
}
FLASH_CE=1;
}
//--------------------------------------------------------------------------------------------------
// 函數(shù)名稱: REC_data_process
// 入口參數(shù): Rdata按頁讀時,每次讀回的數(shù)據(jù)
// 函數(shù)功能:接收數(shù)據(jù)處理,讀一頁時,每讀一次處理一次
//--------------------------------------------------------------------------------------------------
void REC_data_process(unsigned char Rdata) //接收數(shù)據(jù)處理,讀一頁時,每讀一次處理一次
{
}
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