Issues with DFU for SD v7

[Anne]

Hey!

I'm testing out the new SoftDevice and am trying to update firmware OTA but thus far have not been able to do so. I've tried from the Master Control Panel android app (v 2.0.2). I can discover and connect to DfuTarg no problem but when I try to actually update the firmware it gets to 0%, hangs there for maybe 5 seconds, and then disconnects. I also tried from the PC version of Master Control Panel (v3.7.0) and the same thing happened. It connected, discovered, started DFU, and hung at zero.

The SoftDevice is version 7.0.0 flashed from nRFgo Studio (v 1.17.0.3211), the bootloader is the version from SDK v6.1.0, and the firmware I'm trying to upload is the heart rate sensor app from the same SDK. This app works fine when flashed via nRFgo Studio.

I'm using a custom board and so have modified SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_XTAL_20_PPM, true) in ble_stack_init() to be SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_SYNTH_250_PPM, false).

Thanks for your help ^^

[Ignacio Lopez]

Hi

I've found the same error. My configuration is as follows:

• SDK 6.1.0.0 using ble_app_hrs_dfu project without any change.
• s110_nrf51822_7.0.0_softdevice.hex
• nRFgoStudio 1.17.0
• MCP 3.6.0

I have used the following documentation:

devzone.nordicsemi.com/.../a00076.html

On the step 6, I click back but I can only see the device advertising again as 'Nordic_HRM'. I couldn't find the string "DfuTarg" searching files on the current project.

Debugging I could see that the code is calling the bootloader_start function.

Any other suggestion to test on my side?

I have also tried the dfu with the nRF Toolbox from a nexus 4 and iphone 5 without any luck.

Thanks.

Screen Captures

[Anne]

@Ignacio. Ahhh, right. I was being unclear: the bootloader uses the scheduler but the heart rate app doesn't. I messed this up, I told the bootloader not to use the scheduler, and that's why my code didn't run.

Also, have you made sure that the Bootloader/DFU start address is set properly? Scroll down to the bottom of the Keil project page in the SDK, there's a screenshot of what the Keil configuration window for location should look like.

BTW, the SDK says the 128 kB version doesn't support DFU of the SoftDevice or Bootloader. You should still be able to update your application, though.