SRTAG2K-D View Datasheet(PDF) - STMicroelectronics
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SRTAG2K-D Datasheet PDF : 51 Pages
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SRTAG2K-D
Functional procedures
7.5
Unlocking an NDEF file
The RF host executes this procedure to read an NDEF file which has been locked
previously.
1. Select the NDEF Tag Application
2. Select the NDEF file
3. Verify the NDEF file Write password by using the Verify command
4. Unlock the NDEF file by sending the Disable verification command.
7.6
Reaching the read-only state for an NDEF file
The RF host executes this procedure to read an NDEF file which has been locked
previously.
1. Select the NDEF Tag Application
2. Select the NDEF file
3. Transmit the NDEF file Write password by using the Verify command
4. Send an EnablePermanentState command as the Write access right of the previous
Select NDEF file.
7.7
Changing an NDEF password procedure
The RF host could use this procedure to change one NDEF password. it can be a Read or
Write password.
1. Select the NDEF Tag Application
2. Select the NDEF file
3. Transmit the NDEF file Write password by using the Verify command
4. Change the password by sending a ChangeReferenceData command.
7.8
Changing a File type Procedure
The RF host executes this procedure to change the File Type of a file for which all access
rights were previously granted.
1. Select the NDEF Tag Application
2. Select the File to be modified
3. Set the File Length to 0x00 using the UpdateBinary command
4. Send an UpdateFileType command with the New file Type as data.
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