// read from start to end blocks. data will need to be large enough
// to hold all blocks.
BOOL read_tag(BYTE *data, unsigned int startblock, unsigned int endblock)
{
unsigned int i, p= 0;
for(i= startblock; i <= endblock ; ++i, ++p)
{
switch(RFIDlerConfig.TagType)
{
case TAG_TYPE_Q5:
case TAG_TYPE_T55X7:
if(!q5_read_block(data + p * HEXDIGITS(RFIDlerConfig.BlockSize), (BYTE) i))
return FALSE;
break;
case TAG_TYPE_HITAG1:
if (!hitag1_read_page(data + p * HEXDIGITS(RFIDlerConfig.BlockSize), (BYTE) i))
return FALSE;
break;
case TAG_TYPE_HITAG2:
if (!hitag2_read_page(data + p * HEXDIGITS(RFIDlerConfig.BlockSize), (BYTE) i))
return FALSE;
break;
default:
return FALSE;
}
}
return TRUE;
}
BOOL hitag1_write_page(BYTE block, BYTE *data)
{
BYTE crc, command[21], tmp[33], tmp1[4];
if(block > HITAG1_DATABLOCKS - 1)
return FALSE;
// get tag's UID for select command
if(!hitag1_get_uid(tmp))
return FALSE;
// select for read/write
hitag1_select(tmp, tmp);
// convert data to binstring for send
if(hextobinstring(tmp, data) != 32)
return FALSE;
// create and send 12 bit command block: HITAG1_WRPPAGE (4 bits) + 8 bit address
memcpy(command, HITAG1_WRPPAGE, 4);
inttobinstring(command + 4, (unsigned int) block, 8);
command[12]= '\0';
if(!hitag1_send_command(tmp1, command, NO_RESET, NO_SYNC, 0, ACK))
return FALSE;
// delay to switch back to write mode
Delay_us((RFIDlerConfig.RWD_Wait_Switch_RX_TX * RFIDlerConfig.FrameClock) / 100);
// now send data
if(!hitag1_send_command(tmp1, tmp, NO_RESET, NO_SYNC, 0, ACK))
return FALSE;
// read back and verify
// delay for long enough to allow write plus RX->TX period
Delay_us((HITAG1_WRITE_DELAY * RFIDlerConfig.FrameClock + RFIDlerConfig.RWD_Wait_Switch_RX_TX * RFIDlerConfig.FrameClock) / 100);
if(!hitag1_read_page(tmp, block))
return FALSE;
if(memcmp(tmp, data, 8) != 0)
return FALSE;
return TRUE;
}