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--;
}
}
//Write the sector buffer into a sector
uint8_t write_buffer_to_sector(uint32_t lba)
{
if (mmc_writesector(lba, sectorbuffer) != 0) {
//We have a write error
//Invalidate the buffered sector
buffered_lba = -1;
return 1;
} else { //Successful write
buffered_lba = lba;
return 0;
}
}
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();
}
}
DRESULT disk_write (
BYTE drv, /* Physical drive nmuber (0..) */
const BYTE *buff, /* Data to be written */
DWORD sector, /* Sector address (LBA) */
BYTE count /* Number of sectors to write (1..255) */
)
{
if (drv || !count) return RES_PARERR;
if (SD_STATUS & STA_NOINIT) return RES_NOTRDY;
if (count > 1)
return RES_PARERR;
if (mmc_writesector(sector, buff))
return RES_PARERR;
else
return RES_OK;
}
