2 Replies Latest reply on Aug 24, 2016 9:12 AM by patrick_1588811

    BLE Headers in Bootloadable project

    patrick_1588811

      I have an otherwise working workspace with a bootloader and bootloadable project for OTA. The process of identifying how to use headers in the bootloadable project has been very confusing.

         

      I am attempting to implement dyanamic broadcasting to write data to the advertising packet. This requires the use of CyBle_GapUpdateAdvData. As far as I can see, the only way to use these things is to manually copy the declaration from the header, because I get errors about duplicate declarations when including the correct header such as BLE_StackGap.h in a bootloadable project.

         

      However, if I add the declaration to OTA_mandatory.h manually, I get "undefined reference to `CyBle_GapUpdateAdvData'" when linking.

         

       

         

      What is the correct method of using CyBle_GapUpdateAdvData in a Bootloadable?

        • 1. Re: BLE Headers in Bootloadable project
          patrick_1588811

          I have also filed a support case and will report back if I hear back from them. The over-arching issue is that when you have a fixed stack OTA firmware update, the BLE component 'lives' in the Bootloader project, not the Bootloadable project. So this makes it complicated to use BLE-specific API in the Bootloadable (for me, anyway).

          • 2. Re: BLE Headers in Bootloadable project
            patrick_1588811

            Here is the solution thanks to Anjana:

               

             

               

            1) Add KEEP(*(i.CyBle_GapUpdateAdvData*)) and 
            KEEP(*(.text.CyBle_GapUpdateAdvData*)) in cm0gcc.ld of Bootloader project.
            2) build bootloader and run mk.bat
            3) Add the API definition in   OTAMandatory.h file of Bootloadable project as an extern. Eg as below
               extern CYBLE_API_RESULT_T CyBle_GapUpdateAdvData
            (
              CYBLE_GAPP_DISC_DATA_T       * advDiscData,
              CYBLE_GAPP_SCAN_RSP_DATA_T    * advScanRespData
            );