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]

I purchased the tool you have suggested and, once received, I have proceeded as follows:

• First, I have taken the example '...\examples\dfu\bootloader\pca10028\dual_bank_ble_s110\arm4' from the SDK, and I have compiled it with the following memory mapping: - IROM1: 0x3C000, 0x3C00 - IRAM1: 0x20002C00, 0x5380 - IRAM2: 0x20007F80, 0x80 (noinit)
• I have also compiled my application with this other memory mapping: - IROM1: 0x18000, 0x24000 - IRAM1: 0x20002000, 0x6000
• Then, and by means of the IDAP_link and IDAPnRFProg I have successfully programmed my device.
• My device works fine and I also succeeded in changing my application by using the DFU utility. But... (continues)