📄 arm5.0.c
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//至此，ARM芯片进入串行编程模式
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~arm写准备及地址程序~~~~~~~~~~~~~~~~~~~~~~//
void arm_write_RDY(unsigned long data_write_add)
{
unsigned char i;
PORTB|=0x10;
write_handshake();
mode_0(); //进入 Run-test/idle
mode_1(); //进入Select-DR-scan
mode_0(); //进入Capture-DR
mode_0(); //进入Shift-DR
sent_0(); //向DR输入0
sent_1(); //向DR输入1
sent_0(); //向DR输入0
sent_0(); //向DR输入0 0x2
sent_1(); //向DR输入1
sent_1(); //向DR输入1
sent_0(); //向DR输入0
sent_0(); //向DR输入0 0x3 0x32
for(i=0;i<8;i++)
{
sent_0(); //向DR输入0
} //向DR输入8个0， 0x0032(EWP)
sent_0(); //向DR输入
sent_0(); //向DR输入0
sent_0(); //向DR输入0
sent_0(); //向DR输入0
sent_0();
sent_1();
sent_0();
sent_0(); //0x20 每次写入32个字，即一页
for(i=0;i<8;i++)
{
sent_0(); //向DR输入0
} //向DR输入12个0， 0x000
DR_write();
//以上为输入写页命令程序
write_handshake();
mode_1(); //进入Select-DR-scan
mode_0(); //进入Capture-DR
mode_0(); //进入Shift-DR
for(i=0;i<32;i++)
{
PORTB=((data_write_add>>i&1)<<2|0xFB)&(PORTB|0x04);
PORTB|=0x01;
delay(1);
PORTB&=~0x01; // 提供一个TCK时钟
}
DR_write();
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~arm芯片写程序~~~~~~~~~~~~~~~~~~~~~~//
void arm_write(unsigned long data_write)
{
unsigned int i;
write_handshake();
PORTA|=0x80; //点亮ARM写LED
mode_0(); //进入 Run-test/idle
mode_1(); //进入Select-DR-scan
mode_0(); //进入Capture-DR
mode_0(); //进入Shift-DR
for(i=0;i<32;i++)
{
PORTB=((data_write>>i&1)<<2|0xFB)&(PORTB|0x04);
PORTB|=0x01;
delay(1);
PORTB&=~0x01; // 提供一个TCK时钟
}
DR_write();
PORTA&=~0x80; //关闭ARM写LED
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~arm读页准备及地址程序~~~~~~~~~~~~~~~~~~~~~//
void arm_read_RDY(unsigned long data_read_add)
{
unsigned char i;
PORTB|=0x10;
write_handshake();
mode_1(); //进入Select-DR-scan
mode_0(); //进入Capture-DR
mode_0(); //进入Shift-DR
sent_1(); //向DR输入1
sent_0(); //向DR输入0
sent_0(); //向DR输入0
sent_0(); //向DR输入0 0x1
sent_1(); //向DR输入1
sent_0(); //向DR输入0
sent_0(); //向DR输入0
sent_0(); //向DR输入0 0x1 0x11
for(i=0;i<8;i++)
{
sent_0(); //向DR输入0
} //向DR输入8个0， 0x0011(READ)
sent_0(); //向DR输入1
sent_0(); //向DR输入0
sent_0(); //向DR输入0
sent_0(); //向DR输入0 0x1 0x01(写字数)每次写入两个字，即32位数据
sent_0();
sent_1();
sent_0();
sent_0();
for(i=0;i<8;i++)
{
sent_0(); //向DR输入0
} //向DR输入12个0， 0x000
DR_write();
//以上为输入读命令程序
write_handshake();
mode_1(); //进入Select-DR-scan
mode_0(); //进入Capture-DR
mode_0(); //进入Shift-DR
for(i=0;i<32;i++)
{
PORTB=((data_read_add>>i&1)<<2|0xFB)&(PORTB|0x04);
PORTB|=0x01;
delay(1);
PORTB&=~0x01; // 提供一个TCK时钟
}
DR_write();
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~arm读程序~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
void arm_read(void)
{
data_read=0x00000000;
unsigned char i;
read_handshake();
mode_0(); //进入 Run-test/idle
mode_1(); //进入Select-DR-scan
mode_0(); //进入Capture-DR
mode_0(); //进入Shift-DR
for(i=0;i<32;i++)
{
sent_0(); //向DR输入0
data_read=((PINB&0x02)>>1)<<i|data_read;
}
DR_read();
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~数据传输函数~~~~~~~~~~~~~~~~~~~~~~//
void copy(void)
{
//number_error=0;
arm_write_add=0x00100000;
unsigned int page_arm=0;
unsigned int number_arm=0;
unsigned int page=0;
unsigned int number=0;
unsigned char temp00;
unsigned char temp01;
unsigned char temp02;
unsigned char temp03;
unsigned long temp;
PORTB|=0x10; //PB4=1
delay(1);
PORTB &= ~0x10; //PB4(DF_CS)=0;
write_SPI(0x53); //将第一页装入buffer1
write_SPI((uchar)(page>>7));
write_SPI((uchar)(page<<1));
write_SPI(0x00);
PORTB |= 0x10; //PB4(DF_CS)=1
page++;
//delay(1000);
PORTB &= ~0x10; //PB4(DF_CS)=0
write_SPI(0xD1); //开始读取BUFFER1
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
arm_write_RDY(arm_write_add);
while(page_arm<512) //如果ARM没有写满
{
temp00=read_SPI(); //读取flash
number++;
temp01=read_SPI();
number++;
temp02=read_SPI();
number++;
temp03=read_SPI();
number++;
PORTB |= 0x10; //PB4(DF_CS)=1
temp=(((temp03<<8)|temp02)<<8|temp01)<<8|temp00;
arm_write(temp);
number_arm++;
//arm_write_add++;
if(number_arm==32) //写满一页
{
delay(2000); //2ms 用于页存储
page_arm++;
number_arm=0;
arm_write_add=arm_write_add+124;
arm_write_RDY(arm_write_add);
}
if (number == 264)//buffer1读取完毕，主存转入buffer1,开始读取buffer2
{
PORTB |= 0x10; //PB4(DF_CS)=1
delay(1);
PORTB &= ~0x10; //PB4(DF_CS)=0
write_SPI(0x53);//主存转入buffer1
write_SPI((uchar)(page>>7));
write_SPI((uchar)(page<<1));
write_SPI(0x00);
PORTB |= 0x10; //PB4(DF_CS)=1
page++;
PORTB &= ~0x10; //PB4(DF_CS)=0
write_SPI(0xD3); //开始读取buffer2
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
}
if (number == 528) //buffer2读取完毕，主存转入buffer2,开始读取buffer1
{
PORTB |= 0x10; //PB4(DF_CS)=1
number = 0;
PORTB &= ~0x10; //PB4(DF_CS)=0
write_SPI(0x55); //主存转入buffer2
write_SPI((uchar)(page>>7));
write_SPI((uchar)(page<<1));
write_SPI(0x00);
write_SPI(0xD1); //开始读取BUFFER1
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
}
}
if(page_arm==512) //如果arm写满
{
PORTB |= 0x10; //PB4(DF_CS)=1
PORTA|=0xF8; //关闭指示校验的LED
delay(50000);
PORTA&=~0xF8;
}
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~校验程序~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
void validation(void)
{
number_error=0;
unsigned long arm_read_add=0x00100000;
unsigned int page_arm=0;
unsigned int number_arm=0;
unsigned int page=0;
unsigned int number=0;
unsigned char temp00;
unsigned char temp01;
unsigned char temp02;
unsigned char temp03;
unsigned long temp;
PORTB|=0x10; //PB4=1
delay(1);
PORTB &= ~0x10; //PB4(DF_CS)=0;
write_SPI(0x53); //将第一页装入buffer1
write_SPI((uchar)(page>>7));
write_SPI((uchar)(page<<1));
write_SPI(0x00);
PORTB |= 0x10; //PB4(DF_CS)=1
page++;
//delay(1000);
PORTB &= ~0x10; //PB4(DF_CS)=0
write_SPI(0xD1); //开始读取BUFFER1
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
PORTA|=0x40; //点亮指示校验的LED
arm_read_RDY(arm_read_add);
while(page_arm<512) //如果ARM没有写满
{
temp00=read_SPI(); //读取flash
number++;
temp01=read_SPI();
number++;
temp02=read_SPI();
number++;
temp03=read_SPI();
number++;
PORTB |= 0x10; //PB4(DF_CS)=1
temp=(((temp03<<8)|temp02)<<8|temp01)<<8|temp00;
//temp=0xFFFF8787;
arm_read();
//number_arm++;
if(temp==data_read)
{
number_arm++;
//arm_read_add++;
}
else if(temp!=data_read)
{
PORTA|=0x20; //点亮指示有错误的LED
number_arm++;
number_error++; // 标记错误信息
}
/*arm_write_RDY(arm_read_add);
arm_write(temp);
if(temp==data_read)
{
//PORTA&=~0x80; //关闭指示校验LED
number_arm++;
arm_read_add++;
}
else if(temp!=data_read)
{
PORTA|=0x20; //点亮指示有错误的LED
number_arm++;
arm_read_add++;
number_error++; // 标记错误信息
}
}*/
if(number_arm==32) //校验完一页
{
delay(2000); //2ms 用于页存储
page_arm++;
number_arm=0;
arm_read_add=arm_read_add+124;
arm_read_RDY(arm_read_add);
}
if (number == 264)//buffer1读取完毕，主存转入buffer1,开始读取buffer2
{
PORTB |= 0x10; //PB4(DF_CS)=1
delay(1);
PORTB &= ~0x10; //PB4(DF_CS)=0
write_SPI(0x53);//主存转入buffer1
write_SPI((uchar)(page>>7));
write_SPI((uchar)(page<<1));
write_SPI(0x00);
PORTB |= 0x10; //PB4(DF_CS)=1
page++;
PORTB &= ~0x10; //PB4(DF_CS)=0
write_SPI(0xD3); //开始读取buffer2
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
}
if (number == 528) //buffer2读取完毕，主存转入buffer2,开始读取buffer1
{
PORTB |= 0x10; //PB4(DF_CS)=1
number = 0;
PORTB &= ~0x10; //PB4(DF_CS)=0
write_SPI(0x55); //主存转入buffer2
write_SPI((uchar)(page>>7));
write_SPI((uchar)(page<<1));
write_SPI(0x00);
write_SPI(0xD1); //开始读取BUFFER1
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
write_SPI(0x00);
}
}
if(page_arm==512) //如果校验完毕
{
PORTB |= 0x10; //PB4(DF_CS)=1
PORTA|=0xF8; //关闭指示校验的LED
delay(50000);
PORTA&=~0xF8;
if(number_error>100)
{
PORTA|=0x08; //点亮指示错误点超过10000的LED
}
}
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main函数 ~~~~~~~~~~~~~~~~~~~~~~~~~//
void main(void)
{
init_devices(); //设备初始化
PORTB|=0x10; // PB4=1
arm_init();
while(1)
{
if (temp1 >=121&&temp1<143) //6 erase键按下
{
delay(50000); //按键50ms表示删除flash
if (temp1 >=121&&temp1<143) //6 erase键按下
{
TCCR0 =0x00; //关闭定时/计数器0
chip_erase();
delay(2000);
TCCR0 = 0x05; //启动定时/计数器0
PORTA&=0x07;
}
}
if (temp1 >=250) //ss键按下
{
delay(50000); //按键50ms表示编程
if (temp1 >=250) //ss键按下
{
TCCR0 =0x00; //关闭定时/计数器0
copy();
validation();
PORTB |= 0x10; //PB4(DF_CS)=1
ADC1_init(); //启动ADC1转换
TCCR0 = 0x05; //启动定时/计数器0
delay(50000); //等待系统复位
PORTA|=0x10;
}
}
}
}
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