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ble_app_buttonless_dfu application download issue

Hello Nordic team

I am working on nRF52832 DK with SDkv15.2. Example code ble_app_buttonless_dfu.

I have created successfully bootloader and zip file to update the firmware and it's working correctly.

My question is, if I change the ble_app_buttonless_dfu firmware and load the firmware via KEIL to Dev Kit it's started "dfuTarg" so I have only one way to load the firmware via DFU. Is this right behavior/way to load firmware for ble_app_buttonless_dfu example code?

Please let me know if you didn't understand my questions.

Regards

Raj

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  • Hi Raj, 

    As JF mentioned, you need to flash the bootloader setting. Another option is to remove the app valid and CRC checking in the bootloader so it won't check if there is a valid app or check if CRC matched. But this is only for development, for production you need to make sure you turn on that check again. 

    I have a blog here that you may want to have a look, buttonless solution was mentioned at Appendix 2. 

Reply
  • Hi Raj, 

    As JF mentioned, you need to flash the bootloader setting. Another option is to remove the app valid and CRC checking in the bootloader so it won't check if there is a valid app or check if CRC matched. But this is only for development, for production you need to make sure you turn on that check again. 

    I have a blog here that you may want to have a look, buttonless solution was mentioned at Appendix 2. 

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