How to read blocks after 64(256bytes)

[cJK.1]

I am build an andriod app,device is using ST25DV04K NFC chip

i should read first 256 bytes using commnad 0x02,0x23,0x00,0x3f

but failed to read last 256 bytes

I try 2 commands:

1. send 0x02,0x23,0x40,0x7f,respone:0x01,0x0f
2. send 0x02,0x33,0x40,0x00,0x7f,0x00,respone:0x01,0x0f

how to read last 256 bytes?

Thank you

[Brian TIDAL]

Hi,

the Read Multiple Blocks command (23h) takes 2 parameters:

• first block number (here 40h if you want to read after the first 64 blocks)
• number of blocks: 3Fh if you want to read 64 blocks

Thus the correct command is 0x02,0x23,0x40,0x3F

Rgds

BT

[cJK.1]

Thanks.It's work fine.

BR.