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您可以参考下TI CC2640 Bluetooth® low energy OAD User’s Guide
The OAD Image is the image file to be downloaded to OAD Target and should be in intel hex(.hex) format. The Downloader can be BLE Device Monitor running on PC with CC2540 dongle where HostTest application is programmed or any proprietary application or smartphone app where the OAD Profile client described in 7.2 is implemented.
