can I update bootlader over the air

RE: can I update bootlader over the air

bjorn-spockeli — Mon, 18 Apr 2016 13:34:25 GMT

The bootloader image is 16kB(16384bytes), but the the space allocated to the bootloader is 0x3FC00 - 0x3C000 = 0x3C00 (15360bytes). This is because you have set the BANK_APP_VALID flag in the bootloader settings at 0x3FC00 resulting in that flash page getting included in the hex file. You can only set the BANK_APP_VALID when youre programming the bootloader with a programmer the first time. When you're performing a OTA DFU, the bootloader settings must not be set, because this will make the firmware image to big!

RE: can I update bootlader over the air

makouda — Mon, 18 Apr 2016 13:32:02 GMT

Bjørn Spockeli any help please ??? :)

RE: can I update bootlader over the air

makouda — Mon, 18 Apr 2016 09:27:15 GMT

I added the bootloader zip file

RE: can I update bootlader over the air

bjorn-spockeli — Mon, 18 Apr 2016 09:25:40 GMT

Please upload the zip-file as well.

RE: can I update bootlader over the air

makouda — Mon, 18 Apr 2016 09:23:39 GMT

I added the application hex and the bootloader hex. I'm using sdk10. sd8

RE: can I update bootlader over the air

bjorn-spockeli — Mon, 18 Apr 2016 09:18:51 GMT

Could you share the firmware image and the hex file? You're using the S110 v8.0.0 and SDK v10.0.0 right?

RE: can I update bootlader over the air

makouda — Mon, 18 Apr 2016 09:01:08 GMT

I did as you said, but each time it tried to load the bootlader "Starting DFU" on nrf master control, it disconnect. this is not happening with the app !!!

RE: can I update bootlader over the air

bjorn-spockeli — Mon, 18 Apr 2016 08:48:15 GMT

You have to specify that the firmware image is a bootloader image by using the --bootloader option when creating the image using nrfutil.exe, i.e.

nrfutil dfu genpkg <name of zip file>.zip --bootloader <name of bootloader>.hex --application-version 0xFFFFFFFF --dev-revision 0xFFFF --dev-type 0xFFFF --sd-req 0xFFFE

-Bjørn