void Task2()
{
int16_t cnt;
int8_t val;
uint32_t sector = 0;
nrk_sem_t *radio_sem;
while(1) nrk_wait_until_next_period();
radio_sem= rf_get_sem();
if(radio_sem==NULL) nrk_kprintf( PSTR("radio sem failed!\r\n" ));
printf( "Task2 PID=%u\r\n",nrk_get_pid());
cnt=0;
val=mmc_init();
if(val!=0 ) {
printf( "val=%d\r\n",val );
nrk_kprintf( PSTR("card init failed\r\n") );
while(1);
}
while(1) {
nrk_sem_pend (radio_sem);
printf("\nsector %lu\n\r",sector); // show sector number
val=mmc_readsector(sector,sectorbuffer); // read a data sector
printf( "readsector returned %d\n",val );
for(cnt=0; cnt<32; cnt++ )
printf( "%d ",sectorbuffer[cnt] );
printf( "\n\r" );
val=sectorbuffer[0];
val++;
for(cnt=0; cnt<512; cnt++ )
{
sectorbuffer[cnt]=val;
}
nrk_kprintf( PSTR("Writting\r\n") );
val=mmc_writesector(sector,sectorbuffer); // read a data sector
printf( "writesector returned %d\n",val );
printf( "After write:\r\n" );
val=mmc_readsector(sector,sectorbuffer); // read a data sector
nrk_sem_post(radio_sem);
printf( "readsector returned %d\n",val );
if(val==0)
{
for(cnt=0; cnt<32; cnt++ )
printf( "%d ",sectorbuffer[cnt] );
nrk_kprintf( PSTR("\n\r") );
}
sector++;
// nrk_led_toggle(RED_LED);
// printf( "Task2 signed cnt=%d\r\n",cnt );
nrk_wait_until_next_period();
cnt--;
}
}
void Task1()
{
uint16_t cnt;
int8_t val;
uint32_t sector = 0;
printf( "Task1 PID=%d\r\n",nrk_get_pid());
cnt=0;
val=mmc_init();
printf("mmc_init returns %d\n\r", val );
if(val!=0 ) {
printf( "card init failed\r\n" );
while(1);
}
printf("\nsector %ld\n\r",sector); // show sector number
val=mmc_readsector(sector,sectorbuffer); // read a data sector
printf( "readsector returned %d\n",val );
for(cnt=0; cnt<32; cnt++ )
printf( "%d ",sectorbuffer[cnt] );
printf( "\n\r" );
val=sectorbuffer[0];
val++;
for(cnt=0; cnt<512; cnt++ )
{
sectorbuffer[cnt]=val;
}
printf( "Writting\r\n" );
val=mmc_writesector(sector,sectorbuffer); // read a data sector
printf( "writesector returned %d\n",val );
printf( "After write:\r\n" );
val=mmc_readsector(sector,sectorbuffer); // read a data sector
printf( "readsector returned %d\n",val );
if(val==0)
{
for(cnt=0; cnt<32; cnt++ )
printf( "%d ",sectorbuffer[cnt] );
printf( "\n\r" );
}
while(1) {
nrk_wait_until_next_period();
}
}
void LoadRootDirectory(unsigned char *buffer){
//read MBR
mmc_readsector(0);
//read boot record
//long bootRecordSector=sector_buffer_ptr->mbr.partition1.startSector;
long bootRecordSector=sector.mbr.partition1.startSector;
mmc_readsector(bootRecordSector);
int reservedSectors=sector.bootRecord.reservedSectors;
int sectorsPerFat=sector.bootRecord.sectorsPerFat;
maxRootDirectoryEntries=sector.bootRecord.maxRootDirectoryEntries;
bytesPerSector=sector.bootRecord.bytesPerSector;
sectorsPerCluster=sector.bootRecord.sectorsPerCluster;
//get directory table
dirTableSector=bootRecordSector + reservedSectors + (sectorsPerFat * 2); //+ ((maxRootDirectoryEntries * 32) / bytesPerSector);
mmc_readsector(dirTableSector);
}
//Read one sector from the memory card and dump it to the shell
void
read_sd(void)
{
char lbastr[5];
inttostr(lbastr, lba);
shell_output("Reading SD card: Sector", lbastr);
uint8_t data[512];
if (mmc_readsector(lba, data) == 0)
hexdump(data, 512);
else
shell_output("Failed to read that sector", "");
}
void main(){
unsigned int i,px,py,pz,retval[32];
uint32_t sector = 0;
uint8_t sectorbuffer[512];
printf("MMC mule sez Hello World\n");
printf("trying mmc_init\n");
retval[0]=mmc_init();
printf("\nreturn code is %d\n",retval[0]);
if (retval[0]==0){
printf("trying readsector %l\n",sector);
retval[0]=mmc_readsector(sector,sectorbuffer); // read a data sector
printf("return code=%d\n",retval[0]);
//dump(sectorbuffer,512); // dump sector contents
sector=(0xed)+1+121+121+32;
printf("trying readsector %lx\n",sector);
retval[0]=mmc_readsector(sector,sectorbuffer); // read a data sector
printf("return code=%d\n",retval[0]);
dump(sectorbuffer,512); // dump sector contents
}
printf("\n");
printf("\nand we're done\n");
}
//Read a sector into the sector buffer
uint8_t read_sector_to_buffer(uint32_t lba)
{
if (buffered_lba != lba) {
if (mmc_readsector(lba, sectorbuffer) != 0) {
//We have a read error
//The buffered sector may be corrupted,
//so we make sure it's invalidated
buffered_lba = -1;
return 1;
} else { //Successful read
buffered_lba = lba;
return 0;
}
}
return 0;
}
DRESULT disk_read (
BYTE drv, /* Physical drive nmuber (0..) */
BYTE *buff, /* Data buffer to store read data */
DWORD sector, /* Sector address (LBA) */
BYTE count /* Number of sectors to read (1..255) */
)
{
if (drv || !count) return RES_PARERR;
if (SD_STATUS & STA_NOINIT) return RES_NOTRDY;
if (count > 1)
return RES_PARERR;
if (mmc_readsector(sector, buff))
return RES_PARERR;
else
return RES_OK;
}
int main(void)
{
uint32_t i;
char c;
char s1[64], s2[64];
uint8_t bufb[512];
init_serial();
lcd_init();
lcd_printf("Hello World! \n n: %d", 152);
// init card
send_str("\ninit mmc card: ");
c = mmc_init();
if (c) {
send_str("failed (");
send_int(c);
send_str(")\n");
} else {
send_str("success\n");
init_partition(0);
c = 'h';
while (1) {
switch (c) {
case 'l' :
ls();
break;
case 'c' :
send_str("dir: ");
receive_str(s1);
cd(s1);
break;
case 'r' :
send_str("rename file: ");
receive_str(s1);
send_str("new name: ");
receive_str(s2);
rn(s1, s2);
break;
case 'd' :
send_str("delete file: ");
receive_str(s1);
del(s1);
break;
case 'p' :
send_str("file: ");
receive_str(s1);
cat(s1);
break;
case 't' :
send_str("name: ");
receive_str(s1);
touch(s1);
break;
case 's' :
send_str("sector: 0x");
i = receive_hex();
if (mmc_readsector(i, bufb)) {
send_str("error reading sector\n");
} else {
dump_sector(bufb);
send_char('\n');
}
break;
case 'h' :
default :
send_str("h - help\nl - dir listing\nc - change dir\nd - delete file\np - print file contents\nt - create empty file\ns - dump sector\n");
break;
}
// prompt
send_str("> ");
c = receive_char();
send_char('\n');
}
}
while (1) ;
return 0;
}
