BL653 Series Using Direct Test Mode Application Note
The BL653 firmware natively supports Direct Test Mode (DTM)commands as specified in the Bluetooth SIG’s Bluetooth Core Specifications v 5.0vol. 6 part F-Direct Test Mode.
The purpose of DTM is to test the radio operation at the physical layerssuch asfortransmit power and receiver sensitivity.This is useful forregulatory EMC testing orforco-located radio testing with another radio system.
This radio test can be carried out by dedicated test equipment (such as RFCreations Moreph30, Anritsu MT8852,or similar) with the BL653 in DTM mode as the device under test.Alternatively,you can send DTM commands from a PC using a terminal program such as UwTerminalX.In both cases,the DTM commands remainthe same.
This document describes BL653 radio testing using the in-built Direct Test Mode (DTM) firmware and Nordic nRF Connect for Desktop Direct Test Mode tool.
▪ Entering DTM mode for the BL653
▪ Using Nordic nRF Connect for DesktopDirect Test Modetool to BLE radio test the BL653in eitherBLEtransmit or BLE receive mode
▪ How to manually send DTM command (via UwTerminalX) to produce continuous wave [CW] RF TX signal
▪ Exiting DTM mode for the BL653
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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27 May 2020 |
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Version 1.0 |
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1.4 MB |
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