int spi_init()
{
int j;
int i;
int r;
SDHCtype=1;
j=5;
while(--j)
{
SPI_CS(0); // Disable CS
spi_spin();
puts("SD init...\n");
// puts("SPI Init()\n");
DBG("Activating CS\n");
SPI_CS(1);
i=50;
while(--i)
{
if(cmd_reset()==1) // Enable SPI mode
{
i=1;
j=1;
}
DBG("Sent reset command\n");
if(i==2)
{
puts("SD card reset failed!\n");
return(0);
}
}
}
DBG("Card responded to reset\n");
SDHCtype=is_sdhc();
if(SDHCtype)
DBG("SDHC card detected\n");
else // Not SDHC? Set blocksize to 512.
{
DBG("Sending cmd16\n");
cmd_CMD16(1);
}
SPI(0xFF);
SPI_CS(0);
SPI(0xFF);
DBG("Init done\n");
return(1);
}
int spi_init()
{
int i;
int r;
SDHCtype=1;
SPI_CS(0); // Disable CS
spi_spin();
puts("SPI Init()\n");
DBG("Activating CS\n");
SPI_CS(1);
i=8;
while(--i)
{
if(cmd_reset()==1) // Enable SPI mode
i=1;
DBG("Sent reset command\n");
if(i==2)
{
DBG("SD card initialization error!\n");
return(0);
}
}
DBG("Card responded to reset\n");
SDHCtype=is_sdhc();
if(SDHCtype)
DBG("SDHC card detected\n");
else // If not SDHC, Set blocksize to 512 bytes
{
DBG("Sending cmd16 (blocksize)\n");
cmd_CMD16(1);
}
SPI(0xFF);
SPI_CS(0);
SPI(0xFF);
DBG("Init done\n");
return(1);
}
int spi_init()
{
int i;
int r;
SDHCtype=1;
// HW_PER(PER_TIMER_DIV7)=150; // About 350KHz
SPI_CS(0); // Disable CS
spi_spin();
// puts("Activating CS\n");
SPI_CS(1);
i=8;
while(--i)
{
if(cmd_reset()==1) // Enable SPI mode
i=1;
puts("Sent reset command\n");
if(i==2)
{
puts("SD card initialization error!\n");
return(0);
}
}
puts("Card responded to reset\n");
SDHCtype=is_sdhc();
if(SDHCtype)
puts("SDHC card detected\n");
puts("Sending cmd16\n");
cmd_CMD16(1);
SPI(0xFF);
SPI_CS(0);
SPI(0xFF);
puts("Init done\n");
// HW_PER(PER_TIMER_DIV7)=HW_PER(PER_CAP_SPISPEED);
return(1);
}
