tf卡无法格式化下载_Word模板_7

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tf卡无法格式化tf卡无法格式化 #include #include #include #include #include "uart.h" #include "I2C.h" sbit s1=P3^4; //1T sbit s2=P3^5; //2T sbit s3=P3^6; //3T sbit s4=P3^7; //4T sbit led1=P1^0; sbit led2=P1^1; sbit led3=P1^2; //#define freq1 104600 //#define freq2 107900 /...

tf卡无法格式化 #include #include #include #include #include "uart.h" #include "I2C.h" sbit s1=P3^4; //1T sbit s2=P3^5; //2T sbit s3=P3^6; //3T sbit s4=P3^7; //4T sbit led1=P1^0; sbit led2=P1^1; sbit led3=P1^2; //#define freq1 104600 //#define freq2 107900 //#define freq3 94400 //#define freq4 88880 unsigned char radio_write_data[5]={0x31,0xc5,0x40,0x11,0x40}; //要写入TEA5767的数据 unsigned char radio_read_data[5]; //TEA5767读出的状态 unsigned long frequency; unsigned int pll; void delay_ms(unsigned int i) //us延时函数 { unsigned int j,k; for(j=i;j>0;j--) for(k=125;k>0;k--); } void radio_write(void) { unsigned char i; iic_start(); iic_write8bit(0xc0); //TEA5767写地址 if(!iic_testack()) { for(i=0;i<5;i++) { iic_write8bit(radio_write_data[i]); iic_ack(); } } iic_stop(); } //由频率计算PLL void get_pll(void) { unsigned char hlsi; unsigned int twpll=0; hlsi=radio_write_data[2]&0x10; if (hlsi) pll=(unsigned int)((float)((frequency+225)*4)/(float)32.768); //频率单位:k else pll=(unsigned int)((float)((frequency-225)*4)/(float)32.768); //频率单位:k } //由PLL计算频率 void get_frequency(void) { unsigned char hlsi; unsigned int npll=0; npll=pll; hlsi=radio_write_data[2]&0x10; if (hlsi) frequency=(unsigned long)((float)(npll)*(float)8.192-225); //频率单位:KHz else frequency=(unsigned long)((float)(npll)*(float)8.192+225); //频率单位:KHz } //读TEA5767状态,并转换成频率 void radio_read(void) { unsigned char i; unsigned char temp_l,temp_h; pll=0; iic_start(); iic_write8bit(0xc1); //TEA5767读地址 if(!iic_testack()) { for(i=0;i<5;i++) { radio_read_data[i]=iic_read8bit(); iic_ack(); } } iic_stop(); temp_l=radio_read_data[1]; temp_h=radio_read_data[0]; temp_h&=0x3f; pll=temp_h*256+temp_l; get_frequency(); } //手动设置频率不用考虑TEA5767用于搜台的相关位:SM,SUD void search() { get_pll(); radio_write_data[0]=pll/256; radio_write_data[1]=pll%256; radio_write_data[2]=0x41; radio_write_data[3]=0x11; radio_write_data[4]=0x40; radio_write(); } void main() { P3=0xff; UART_Init(); comm("gfradio \r\n\0"); comm("running \r\n\0"); radio_write(); while(1) { if(s1==0) { delay_ms(1); if(s1==0) { while(s1==0); frequency=79000; search(); send_fre(frequency); led1=0; led2=1; led3=1; } } if(s2==0) { delay_ms(1); if(s2==0) { while(s2==0); frequency=100500; search(); send_fre(frequency); led1=1; led2=0; led3=1; } } if(s3==0) { delay_ms(1); if(s3==0) { while(s3==0); frequency=94400; search(); send_fre(frequency); led1=1; led2=1; led3=0; } } if(s4==0) { delay_ms(1); if(s4==0) { while(s4==0); frequency=88880; search(); send_fre(frequency); led1=0; led2=0; led3=0; } } } }

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