User Manual

64
Parameters
icdev: Value of Device Handle.
Key : key to be changed(2 bytes)
Return Value
0 if successful; otherwise, Nonzero.
Example
unsigned char keybuffer[2]={0x00,0x00};
if(fw_changkey_4428(icdev,keybuffer)!=0)
{
printf(“Change key error”);
}
int fw_cntReadError_4428(int icdev,unsigned char *cntReadError);
Description
Get the count of read-error
Parameters
icdev: Value of Device Handle.
cntReadError : the count of read-error
Return Value
0 if successful; otherwise, Nonzero.
Example
int st;
unsigned char nerror;
st= fw_cntReadError_4428(icdev,&nerror);
3．MIFARE ONE Card Structure
Features:
1K bytes of memory, Composed of 16 sectors, each sector has 4 blocks, and each
block has 16 bytes.
User can control the writing restrictions for each block.
Each sector has an independent set of passwords and access control
Each card has a unique serial number with 32bits
With anti-collision mechanism, and supports multi-card operation
It comes with antenna, no power needed, and includes encryption control logic
and communication logic circuit
Operating temperature: -20 ℃ ~ 50 ℃
Operating frequency: 13.56MHZ