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

[Ignacio Lopez]

Hi anne,

Thanks a lot for you help. I managed to get it working with the dev board nRF6310+PCA10006. This is a configuration with a 256kb. Yes you are right, the 128kb only supports application update and this is exactly what i wanna do. I've modified the bootloader project to start at the address 0x1C000 and reduce the size of the ble_app_hrs_dfu project to 0x6000 (24kb). The device doesnt advertise. I am trying to debug it now.

Also I have observe that once the bootloader is flahsed the nRFgo Studio recognize the device as 256kb. I am going to attach some screen captures in the top comment.

It would be great if anyone could write a detailed step guide about how to get the bootloader working in the 128kb version. Remember that I want to be able to update only the application code.