DFU in custom board without Segger

[Dani]

Good afternoon, I have developed a custom board based on nRF51822 device and SD-110-v8. For debugging I have been usign the Ulink2 tool with Keil. Now, I want to implement DFU on my custom device but I have problems to program the DFU Bootloader into my device with my debuggin tool. So, is there any way of programming the DFU without a Segger tool (to access UICR) and continue using my ULINK2? If not, which Segger debugger do you recommend the most? The solution should also think in the future production stage.

[Nguyen Hoan Hoang]

How about this alternative here. multi-boards can be used for parallel programming on OS X & Windows. Can Flash all 3 (SD, App, DFU) all at once without mergehex. Support drag & drop with support for mBed compiled hex. Lot's features.

[Dani]

(continues) The only problem I have is related to Data-Peserving: when my device starts, I only write flash with my default values if it is not written (when 0xFF). I also use DeviceManager, I have PSTORAGE_MAX_APPLICATIONS to 5, and DFU_APP_DATA_RESERVED is set to 0x1400. If I try to read flash later on, I get all values to 0, so it means that it has not written with my default values and it seems as it was initialised to 0x00. Any suggestion???