?? main.c
字號(hào):
#include <iom16v.h>
#include "D:\ICC_H\CmmICC.H"
#define DISP_PORT PORTB
#define DISP_DDR DDRB
char a1[]={0X3A,0X71,0X00}; //檢測(cè)U盤(pán)
char a2[]={0X3A,0X64,0X06,0X5C,0X31,0X2E,0X54,0X58,0X54};//打開(kāi)文件
char a3[]={0X3A,0X7A,0X04,0X00,0X00,0X00,0X02}; //字節(jié)定位
char a4[]={0X3A,0X7C,0X0D,0X5C,0X31,0X32,0X33,0X34,0X35,0X36,0X37,0X38,0X39,0X41,0X42,0X43};//寫(xiě)入數(shù)據(jù)
char a5[]={0X3A,0X67,0X00}; //關(guān)閉文件
void delayms(unsigned int i)
{
unsigned int j,k;
for (j =0; j < i; j++)
{
for(k = 0; k < 100; k++)
;
}
}
void delays(unsigned int i)
{
unsigned int j,k,d;
for(j=0;j<i;j++)
{
for(k=0;k<1000;k++)
{
for(d=0;d<100;d++)
;
}
}
}
void uart0_init(void)
{
UCSRB = 0x00; //disable while setting baud rate
UCSRA = 0x00;
UCSRC = 0x86;
UBRRL = 47; //set baud rate lo,波特率為9.6K
UBRRH = 0x00; //set baud rate hi
UCSRB = 0x98; //接收中斷允許,接收緩沖自動(dòng)清空,接收允許
}
#pragma interrupt_handler uart0_rx_isr:12 //中斷程序
void uart0_rx_isr(void)
{
DISP_PORT = UDR;
}
void mcu_init(void)
{
CLI(); //全局中斷標(biāo)志禁止
uart0_init();
MCUCR = 0x00;
GICR = 0x00;
TIMSK = 0x00; //timer interrupt sources
SEI(); //re-enable interrupts 全局中斷標(biāo)志使能
}
//檢測(cè)U盤(pán)
void CMD_DiskReady()
{
char i=0;
for(i=0;i<3;i++)
{
UDR=a1[i];
delayms(10);
}
delays(1);
}
//打開(kāi)文件 1.TXT
void CMD_FileOpen()
{
char j=0;
for(j=0;j<9;j++)
{
UDR=a2[j];
delayms(10);
}
delays(1);
}
//字節(jié)定位 定位位置為2 指針移到第3位
void CMD_ByteLocate()
{
char m=0;
for(m=0;m<7;m++)
{
UDR=a3[m];
delayms(10);
}
delays(1);
}
//寫(xiě)入字節(jié) 123456789ABC
void CMD_ByteWrite()
{
char d=0;
for(d=0;d<16;d++)
{
UDR=a4[d];
delayms(10);
}
delays(1);
}
//關(guān)閉文件 1.TXT
void CMD_FileClose()
{
char k=0;
for(k=0;k<3;k++)
{
UDR=a5[k];
delayms(10);
}
delays(1);
}
void main()
{
DDRB=0xff;
PORTB=0x0f;
mcu_init();
CMD_DiskReady();
delays(40);
CMD_FileOpen();
delays(40);
CMD_ByteLocate();
delays(40);
CMD_ByteWrite();
delays(40);
CMD_FileClose();
while(!(UCSRA&0x40)); //等待發(fā)送結(jié)束
UCSRA|=0x40; //清除發(fā)送結(jié)束標(biāo)志位
delays(40);
while(1)
{
//主程序
delayms(50);
}
}
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