Can you please let us know what is the issue you are facing?
Please refer to the attached example project where I'm sending signed write value to the peripheral.
thanks for reply,
here i am facing the issue with the generated signature value. It is not matching the AES_CMAC output as specified in the BT_spec_5.0
Please check the spec part 220.127.116.11 Signed Write command.
As per bluetooth Spec, the generated output signature should match the half of the part of the AES_CMAC output.
Can you please share your project?