实例介绍
【实例简介】
【实例截图】/**********FRM25040******************************************/
unsigned char FM_Read(void)
{
unsigned char Loop;
unsigned char Data;
Data=0;
DO_25040=1;
for(Loop=0;Loop<8;Loop )
{
CLK_25040=1;
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
CLK_25040=0;
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if(DO_25040)
Data=(Data<<1)|0x01;
else
Data=(Data<<1)|0x00;
}
return Data;
}
void FM_Write(unsigned char Data)
{
unsigned char Loop;
for(Loop=0;Loop<8;Loop )
{
if((Data&0x80)==0x80)
DI_25040=1;
else
DI_25040=0;
CLK_25040=0;
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
CLK_25040=1;
Data<<=1;
asm("nop");
asm("nop");
}
DI_25040=1;
}
void FM_wren_cmd(void) //发送写使能命令
{
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
FM_Write(WREN); //Send WREN instruction 写使能
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
}
void FM_wrdi_cmd(void) //发送写使能取消命令
{
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
FM_Write(WRDI); //Send WREN instruction OFF写使能
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
}
unsigned char FM_rdsr_cmd (void)
{
unsigned char rstruction;
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
FM_Write(RDSR); //Send WREN instruction 写使能
rstruction=FM_Read();
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
return (rstruction);
}
void FM_wrsr_cmd(unsigned char status)
{
FM_wren_cmd();
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
FM_Write(WRSR); //Send WREN instruction 写使能
FM_Write(status); //Send WREN instruction 写使能
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
}
void FM_byte_write(unsigned int Addr,unsigned char Data)
{
unsigned char temp;
FM_wren_cmd(); //write enable
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if((Addr&0x0100)==0x0100)
temp=0x08;
else
temp=0x00;
temp=temp|WRITE;
FM_Write(temp);// Send WRITE instruction including MSB of address
FM_Write((unsigned char)(Addr));
FM_Write(Data);
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
}
void FM_word_write(unsigned int Addr,unsigned int Data)
{
unsigned char x,y;
FM_wren_cmd(); //write enable
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if((Addr&0x0100)==0x0100)
x=0x08;
else
x=0x00;
x=x|WRITE;
FM_Write(x);// Send WRITE instruction including MSB of address
FM_Write((unsigned char)(Addr));
x=Data/256;
FM_Write(x);
y=Data%256;
FM_Write(y);
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
}
void FM_long_write(unsigned int Addr,unsigned long data)
{
unsigned char i, x,y,h,k;
unsigned temp;
x=data>>24;
y=data>>16;
h=data>>8;
k=data;
temp=Addr;
FM_byte_write(temp,x);
temp=Addr 1;
FM_byte_write(temp,y);
temp=Addr 2;
FM_byte_write(temp,h);
temp=Addr 3;
FM_byte_write(temp,k);
}
unsigned long FM_long_read(unsigned int Addr)
{
unsigned char temp,x,y,h,k;
unsigned long data;
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if((Addr&0x0100)==0x0100)
temp=0x08;
else
temp=0x00;
temp=temp|READ;
FM_Write(temp);// Send WRITE instruction including MSB of address
FM_Write((unsigned char)(Addr));
x=FM_Read();
y=FM_Read();
h=FM_Read();
k=FM_Read();
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
data=((unsigned long)x<<24) ((unsigned long)y<<16) ((unsigned long)h<<8) (unsigned long)k;
return(data);
}
//======================================
unsigned char FM_byte_read(unsigned int Addr)
{
unsigned char temp;
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if((Addr&0x0100)==0x0100)
temp=0x08;
else
temp=0x00;
temp=temp|READ;
FM_Write(temp);// Send WRITE instruction including MSB of address
FM_Write((unsigned char)(Addr));
temp=FM_Read();
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
return(temp);
}
unsigned int FM_word_read(unsigned int Addr)
{
unsigned char temp,x,y;
unsigned int data;
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if((Addr&0x0100)==0x0100)
temp=0x08;
else
temp=0x00;
temp=temp|READ;
FM_Write(temp);// Send WRITE instruction including MSB of address
FM_Write((unsigned char)(Addr));
x=FM_Read();
y=FM_Read();
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
data=(unsigned int)x*256 y;
return(data);
}
【核心代码】
【实例截图】/**********FRM25040******************************************/
unsigned char FM_Read(void)
{
unsigned char Loop;
unsigned char Data;
Data=0;
DO_25040=1;
for(Loop=0;Loop<8;Loop )
{
CLK_25040=1;
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
CLK_25040=0;
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if(DO_25040)
Data=(Data<<1)|0x01;
else
Data=(Data<<1)|0x00;
}
return Data;
}
void FM_Write(unsigned char Data)
{
unsigned char Loop;
for(Loop=0;Loop<8;Loop )
{
if((Data&0x80)==0x80)
DI_25040=1;
else
DI_25040=0;
CLK_25040=0;
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
CLK_25040=1;
Data<<=1;
asm("nop");
asm("nop");
}
DI_25040=1;
}
void FM_wren_cmd(void) //发送写使能命令
{
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
FM_Write(WREN); //Send WREN instruction 写使能
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
}
void FM_wrdi_cmd(void) //发送写使能取消命令
{
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
FM_Write(WRDI); //Send WREN instruction OFF写使能
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
}
unsigned char FM_rdsr_cmd (void)
{
unsigned char rstruction;
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
FM_Write(RDSR); //Send WREN instruction 写使能
rstruction=FM_Read();
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
return (rstruction);
}
void FM_wrsr_cmd(unsigned char status)
{
FM_wren_cmd();
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
FM_Write(WRSR); //Send WREN instruction 写使能
FM_Write(status); //Send WREN instruction 写使能
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
}
void FM_byte_write(unsigned int Addr,unsigned char Data)
{
unsigned char temp;
FM_wren_cmd(); //write enable
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if((Addr&0x0100)==0x0100)
temp=0x08;
else
temp=0x00;
temp=temp|WRITE;
FM_Write(temp);// Send WRITE instruction including MSB of address
FM_Write((unsigned char)(Addr));
FM_Write(Data);
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
}
void FM_word_write(unsigned int Addr,unsigned int Data)
{
unsigned char x,y;
FM_wren_cmd(); //write enable
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if((Addr&0x0100)==0x0100)
x=0x08;
else
x=0x00;
x=x|WRITE;
FM_Write(x);// Send WRITE instruction including MSB of address
FM_Write((unsigned char)(Addr));
x=Data/256;
FM_Write(x);
y=Data%256;
FM_Write(y);
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
}
void FM_long_write(unsigned int Addr,unsigned long data)
{
unsigned char i, x,y,h,k;
unsigned temp;
x=data>>24;
y=data>>16;
h=data>>8;
k=data;
temp=Addr;
FM_byte_write(temp,x);
temp=Addr 1;
FM_byte_write(temp,y);
temp=Addr 2;
FM_byte_write(temp,h);
temp=Addr 3;
FM_byte_write(temp,k);
}
unsigned long FM_long_read(unsigned int Addr)
{
unsigned char temp,x,y,h,k;
unsigned long data;
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if((Addr&0x0100)==0x0100)
temp=0x08;
else
temp=0x00;
temp=temp|READ;
FM_Write(temp);// Send WRITE instruction including MSB of address
FM_Write((unsigned char)(Addr));
x=FM_Read();
y=FM_Read();
h=FM_Read();
k=FM_Read();
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
data=((unsigned long)x<<24) ((unsigned long)y<<16) ((unsigned long)h<<8) (unsigned long)k;
return(data);
}
//======================================
unsigned char FM_byte_read(unsigned int Addr)
{
unsigned char temp;
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if((Addr&0x0100)==0x0100)
temp=0x08;
else
temp=0x00;
temp=temp|READ;
FM_Write(temp);// Send WRITE instruction including MSB of address
FM_Write((unsigned char)(Addr));
temp=FM_Read();
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
return(temp);
}
unsigned int FM_word_read(unsigned int Addr)
{
unsigned char temp,x,y;
unsigned int data;
CLK_25040=0; //CLK为低电平时才能片选
asm("nop");
asm("nop");
CS_25040=0; // 选定FRAM
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
if((Addr&0x0100)==0x0100)
temp=0x08;
else
temp=0x00;
temp=temp|READ;
FM_Write(temp);// Send WRITE instruction including MSB of address
FM_Write((unsigned char)(Addr));
x=FM_Read();
y=FM_Read();
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
asm("nop");
CLK_25040=0; //
asm("nop");
asm("nop");
CS_25040=1; //
data=(unsigned int)x*256 y;
return(data);
}
【核心代码】
好例子网口号:伸出你的我的手 — 分享!
小贴士
感谢您为本站写下的评论,您的评论对其它用户来说具有重要的参考价值,所以请认真填写。
- 类似“顶”、“沙发”之类没有营养的文字,对勤劳贡献的楼主来说是令人沮丧的反馈信息。
- 相信您也不想看到一排文字/表情墙,所以请不要反馈意义不大的重复字符,也请尽量不要纯表情的回复。
- 提问之前请再仔细看一遍楼主的说明,或许是您遗漏了。
- 请勿到处挖坑绊人、招贴广告。既占空间让人厌烦,又没人会搭理,于人于己都无利。
关于好例子网
本站旨在为广大IT学习爱好者提供一个非营利性互相学习交流分享平台。本站所有资源都可以被免费获取学习研究。本站资源来自网友分享,对搜索内容的合法性不具有预见性、识别性、控制性,仅供学习研究,请务必在下载后24小时内给予删除,不得用于其他任何用途,否则后果自负。基于互联网的特殊性,平台无法对用户传输的作品、信息、内容的权属或合法性、安全性、合规性、真实性、科学性、完整权、有效性等进行实质审查;无论平台是否已进行审查,用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。本站所有资源不代表本站的观点或立场,基于网友分享,根据中国法律《信息网络传播权保护条例》第二十二与二十三条之规定,若资源存在侵权或相关问题请联系本站客服人员,点此联系我们。关于更多版权及免责申明参见 版权及免责申明
网友评论
我要评论