read memory of ST25DV64K-I using android studio

[MCanf.1]

I want create one app that with NFC read the memory of ST25DV64K-I.

i try the official app ST25 and read the memory... but using the st25sdk-1.10.0 libraries.

i use android studio.i can read the Tag name and UID, but i can't find how to read the memory

[France Berthelot]

Hello

With our application you can read memory.

Feature used is : when tag has been tapped, you use Memory content feature/menu to R/W/Dump memory

Source code is available here: https://www.st.com/en/embedded-software/stsw-st25001.html

Here an extract from the source code as example using our SDK and for different Tag type

Assuming : NFCTag mTag;

if (UIHelper.isAType4Tag(mTag)) {

   // Tag type 4

   int size = getMemoryAreaSizeInBytes(((Type4Tag) mTag), mArea);

   mNumberOfBytes = size;

   mStartAddress = 0;

   int fileId = UIHelper.getType4FileIdFromArea(mArea);

   // inform user that a read will be performed

   snackBarUiThread();

   if (mReadPassword != null && mTag instanceof STType4Tag) {

       mBuffer = ((STType4Tag) mTag).readBytes(fileId, 0, size, mReadPassword);

   } else {

       mBuffer = ((Type4Tag) mTag).readBytes(fileId, 0, size);

   }

   mReadPassword = null;

   int nbrOfBytesRead = 0;

   if (mBuffer != null) {

       nbrOfBytesRead = mBuffer.length;

   }

   if (nbrOfBytesRead != mNumberOfBytes) {

       showToast(R.string.error_during_read_operation, nbrOfBytesRead);

   }

} else if (UIHelper.isAType5Tag(mTag)){

   if (mArea == -1) {

       mAreaId = getAreaIdFromAddressInBytesForType5Tag(mStartAddress);

   }

   if (mAreaId == -1) {

       // An issue occured retrieving AreaId from Address

       // Address is probably invalid

       showToast(R.string.invalid_value);

       return false;

   } else {

       // Type 5

       mBuffer = getTag().readBytes(mStartAddress, mNumberOfBytes);

       // Warning: readBytes() may return less bytes than requested

       int nbrOfBytesRead = 0;

       if (mBuffer != null) {

           nbrOfBytesRead = mBuffer.length;

       }

       if (nbrOfBytesRead != mNumberOfBytes) {

           showToast(R.string.error_during_read_operation, nbrOfBytesRead);

       }

   }

} else if (UIHelper.isAType2Tag(mTag)){

   if (mArea == -1) {

       mAreaId = getAreaIdFromAddressInBytesForType2Tag(mStartAddress);

   }

   if (mAreaId == -1) {

       // An issue occured retrieving AreaId from Address

       // Address is probably invalid

       showToast(R.string.invalid_value);

       return false;

   } else {

       mBuffer = getTag().readBytes(mStartAddress, mNumberOfBytes);

       // Warning: readBytes() may return less bytes than requested

       int nbrOfBytesRead = 0;

       if (mBuffer != null) {

           nbrOfBytesRead = mBuffer.length;

       }

       if (nbrOfBytesRead != mNumberOfBytes) {

           showToast(R.string.error_during_read_operation, nbrOfBytesRead);

       }

   }

Search file : ReadFragmentActivity in source code, and you will found way of doing memory read.

For write refers to WriteFragmentActivity

Rgds,FB