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Bluetooth Low Energy DTM decoder


Accompanying blog post here : Irshad's technical blog

My hardware setup.


Software defined radio attached with DUT using RF-Link

The Logic_Analyzer_DTM_Capture folder contains the logic analyzer data from the host that produced the radio frequency data of DTM data patterns (0 thorugh 7) at channel 4 (2410MHz).


The GNU radio companion flow diagram


The BLE_DTM_Decoder.grc is the GnuRadioCompanion file that is used to experiment with the different recorded DTM capture files to decode them into hex data files for further analysis.


Resulting Hex data file from analysis


The Preamble_OtherInformation text file contains various different data such as Preamble, Access Address, Header data, Data packets, CRC information used for comparison.


Logic analyzer data and Radio decoding comparison

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GNURadio based Bluetooth Low Energy (Direct Test Mode) decoder

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