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sdcard.c
92 lines (72 loc) · 1.43 KB
/
sdcard.c
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sbit Mmc_Chip_Select at LATC0_bit; // for writing to output pin always use latch (PIC18 family)
sbit Mmc_Chip_Select_Direction at TRISC0_bit;
char buf[512];
char read[512];
void main() {
char error,error2;
uart1_init(9600);
SPI1_Init();
buf[0]='E';
buf[1]='n';
buf[2]='g';
buf[3]='S';
buf[4]='h';
buf[5]='a';
buf[6]='d';
buf[7]='y';
trisd=255;
error = MMC_init();
if(!error){
uart1_write_text("connected");
}
else
uart1_write_text("not connected");
while(1)
{
if(rd0_bit==0)
{
buf[0]='E';
buf[1]='n';
buf[2]='g';
buf[3]='S';
buf[4]='h';
buf[5]='a';
buf[6]='d';
buf[7]='y';
error2 = Mmc_write_Sector(1, buf);
if(!error2)
{
uart1_write_text("write success");
}
else
uart1_write_text("write not success");
while(rd0_bit==0){}
}
if(rd1_bit==0)
{
error2 = Mmc_read_Sector(1, read);
uart1_write_text(read);
while(rd1_bit==0){}
}
if(rd2_bit==0)
{
buf[0]='E';
buf[1]='n';
buf[2]='g';
buf[3]='i';
buf[4]='s';
buf[5]='m';
buf[6]='a';
buf[7]='i';
buf[7]='l';
error2 = Mmc_write_Sector(1, buf);
if(!error2)
{
uart1_write_text("write success");
}
else
uart1_write_text("write not success");
while(rd2_bit==0){}
}
}
}