only update bootloader

RE: only update bootloader

Hung Bui — Wed, 14 Sep 2016 07:36:58 GMT

@James: Have you followed the guide I mentioned above ? Which is the start address of your bootloader ? Could you attach your .zip after you modified ? You would need to movie down from address 0x3C000 to for example 0x3B000

RE: only update bootloader

james — Wed, 14 Sep 2016 02:31:41 GMT

Hi Hung,the size of zip alway exceeds the size limit of dfu ,no matter how much size I increase. I don't know how to do with it.

RE: only update bootloader

Hung Bui — Mon, 12 Sep 2016 13:54:49 GMT

@James: The problem is that the binary doesn't have address. So if you have some code at address 0x3C000 and then some code at address 0x3FC00 (the bootloader setting) then the binary will be from 0x3C000 to 0x3FCFF. If you change the start address to 0x3A000 for example the binary file will be increased from 0x3A000 to 0x3FCFF. It's doesn't matter if you have some blank pages in between, they will be 0xFFFFFF in the binary file.

RE: only update bootloader

james — Mon, 12 Sep 2016 08:05:57 GMT

Hi Hung, I had only modified the size configuration, and I hadn't modified the content of hex.

RE: only update bootloader

Hung Bui — Mon, 12 Sep 2016 07:47:54 GMT

The zip contains the bootloader, I think it's pretty straight forward that you increase the size of the hex file of the bootloader, you increase the .zip file's size.

RE: only update bootloader

james — Fri, 09 Sep 2016 07:50:25 GMT

Hi Hung,I had followed the guide.But I wonder why the size of zip will increase ,when I increase the size of bootloader.

RE: only update bootloader

james — Fri, 09 Sep 2016 06:21:16 GMT

Thanks,Hung.

RE: only update bootloader

Hung Bui — Thu, 08 Sep 2016 07:26:17 GMT

Hi James, Which size went beyond the limit ? The size of the bootloader or the size of the image you want to update ? If you want to increase the allowed size of the bootloader, please follow this guide.

RE: only update bootloader

james — Thu, 08 Sep 2016 02:51:03 GMT

Hi Hung, I want to use the single bank, how should I do.I modify the double bank to single bank ,but the size beyonds the limit.

RE: only update bootloader

james — Thu, 08 Sep 2016 01:10:50 GMT

Thank you, Hung.

RE: only update bootloader

Hung Bui — Wed, 07 Sep 2016 13:54:32 GMT

Hi James,

Thanks for the files. Looking at the files I can see that it exceed the maximum size of the bootloader. In your case your bootloader has the size of 0x4000 (16384) when the maximum size of the bootloader should only be DFU_BL_IMAGE_MAX_SIZE (BOOTLOADER_SETTINGS_ADDRESS - BOOTLOADER_REGION_START) In SDK v9, by default it's 0x3C00. (1 page is used for bootloader setting)

Which modification you added in your bootloader?

If you need to extend the size of the bootloader, you would need to move it down from address 0x3C000 to make more room for the bootloader (when you would need to modify BOOTLOADER_REGION_START define in dfu_types.h accordingly)

RE: only update bootloader

james — Wed, 07 Sep 2016 01:17:25 GMT

Hi Hung, I had uploader the hex and zip.

RE: only update bootloader

Hung Bui — Tue, 06 Sep 2016 11:51:00 GMT

Hi James,

The log tells that the bootloader refused because the size is too big.

E	11:36:25.080	[DFU] Remote DFU error: REMOTE DFU DATA SIZE EXCEEDS LIMIT

I tried your james_bootloader_test.hex, but it's not the bootloader, it's a normal BLE UART application.

I'm kind of lost on what you are planing to do. Please re-cap what are you trying to do, what is the problem. And provide the .zip file you are trying to update.

RE: only update bootloader

james — Tue, 06 Sep 2016 03:48:12 GMT

Hi Hung, I'm sorry. I had a little busy last week. I had tried it today,but it still fail. I had uploaded the log.

RE: only update bootloader

james — Tue, 30 Aug 2016 08:42:38 GMT

thanks Hung, I will try it.

RE: only update bootloader

Hung Bui — Tue, 30 Aug 2016 07:54:21 GMT

Hi James,

Sorry that it's a little bit hidden. We are gradually replacing Master Control Panel with nRF Connect. You can find it here in the download tab , it's called with acronym nRF-MCP

Still, please update with a screenshot when the error occurs.

RE: only update bootloader

james — Tue, 30 Aug 2016 05:12:03 GMT

Hung: Where can I download master control panel? I had search it on the Nordic websize, but I didn't find it.

RE: only update bootloader

Hung Bui — Mon, 29 Aug 2016 13:06:51 GMT

@James: the current version is v3.10 please use that. And please take a screenshot when you see the error

RE: only update bootloader

james — Mon, 29 Aug 2016 01:09:35 GMT

Sorry so long to get back to you.I use version 3.8.0.7.

RE: only update bootloader

Hung Bui — Thu, 25 Aug 2016 08:57:51 GMT

@james: please take a screenshot of the error . Which MasterControlPanel version are you using ?

RE: only update bootloader

james — Thu, 25 Aug 2016 01:25:14 GMT

Hi Hung,

I had tried the command,but it report invalid command.I also try the command like this: nrf.exe dfu genpkg --dev-type 0xFFFF --dev-revision 0xFFFF --application-version 0xFFFF --sd-req 0xfffe --application XXX.hex XXX.zip.

But it still reports invalid command. Could you tell me where I can download the nrfutil.exe?

RE: only update bootloader

james — Mon, 22 Aug 2016 11:39:23 GMT

Thanks Hung, I will try it.

RE: only update bootloader

Hung Bui — Mon, 22 Aug 2016 11:34:09 GMT

Yes, you can use nrfutil.exe (or nrf.exe for earlier MasterControlPanel version) to generate .zip file from the bootloader.hex. It's pretty complex to make the .dat and it's not recommended. So I think it's better to let the nrfutil.exe do the task. You can use a command like this:

nrfutil.exe dfu genpkg bootloader.zip --bootloader yourbootloader.hex --application-version 0xffff --dev-revision 0xffff --dev-type 0xffff --sd-req 0xfffe

RE: only update bootloader

james — Mon, 22 Aug 2016 08:25:22 GMT

Hi Hung: I'm sorry.I had read the link,but I can't follow it.Where can I find the .dat file? And I can use the nrfutil.exe to change the bootloader.hex into Zip file? I use the C:\Program Files\Nordic Semiconductor\Master Control Panel\3.8.0.7\nrf to change the application.hex into Zip.

RE: only update bootloader

Hung Bui — Mon, 22 Aug 2016 07:54:42 GMT

Hi James,

From SDK v7.0 the init packet is required. So you would need either to provide the .dat file (as showed in the app after you select the .hex) or you need to generate and provide the .zip file. I would suggest to use the .zip file (can be generated by nrfutil.exe) .

You can read more about different version of the DFU bootloader here.