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Good day,
I have a CYBT-353027-02 which I program over the HCI serial port (after carrying out a recover/reset of the device) using the WICED Programmer. As I understand it; this recovery/reset presents a command handle on the HCI serial port with which the WICED programmer can download re-flash the Bluetooth device's firmware.
My question is: Is it possible to use the Bluetooth interface to carry out programming of the Bluetooth device?
This would involve exposing the HCI programming command handler to the BT interface and obtaining/examining the protocol used by the WICED programmer in order to write an application to carry out the programming in place of the WICED programmer.
I realise that there would be security issues with respect to having the ability to program the Bluetooth firmware over the Bluetooth interface but putting those aside, would it be possible?
WICED Programmer: WICED Module Programmer User Guide – KBA225060 - Infineon Developer Community
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No, you can't use the Bluetooth interface to directly program the device. But you may use the OTA Upgrade function to upgrade your FW.
Please refer to the following AN about the OTA:
https://infineon.github.io/btsdk-docs/BT-SDK/AIROC-Secure-Over-the-Air-Firmware-Upgrade.pdf
https://infineon.github.io/btsdk-docs/BT-SDK/AIROC-Firmware-Upgrade-Library.pdf
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No, you can't use the Bluetooth interface to directly program the device. But you may use the OTA Upgrade function to upgrade your FW.
Please refer to the following AN about the OTA:
https://infineon.github.io/btsdk-docs/BT-SDK/AIROC-Secure-Over-the-Air-Firmware-Upgrade.pdf
https://infineon.github.io/btsdk-docs/BT-SDK/AIROC-Firmware-Upgrade-Library.pdf
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Great, thanks for your help.