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CC2564MODA: ATT (attribute) error handling

Part Number: CC2564MODA

Hello,

We are using CC2564MODA Bluetooth module and Bluetopia stack.  

We have created our BLE service database with two Rx and Tx characteristics. And implemented one gatt events callback to read and write from those characteristics. 

My question is regarding error handling of attributes. If central try to read using invalid handle or invalid UUID, do we need response error at application level that handle is invalid? Or stack itself answer it that handle or UUID is invalid.

Regards,

Bhagyashri