Difference between the various projects within an example in the nRF51 SDKs

RE: Difference between the various projects within an example in the nRF51 SDKs

Vidar Berg — Thu, 17 Dec 2020 10:25:01 GMT

The advantage is that it's a Keil 5 project, so no migration is needed. The difference compared to Keil 4 projects is that the startup files are installed via the packs installer.

CMSIS-Pack files

nRF5205 can be used with the latest nRF5 SDK (v17.0.2), please see this blog post to get started: https://devzone.nordicsemi.com/nordic/short-range-guides/b/getting-started/posts/developing-for-the-nrf52805-with-nrf5-sdk

RE: Difference between the various projects within an example in the nRF51 SDKs

brianreinhold — Thu, 17 Dec 2020 09:54:09 GMT

What is the advantage of using Keil no packs? I had a great deal of trouble in my version 8.1.0 attempt because I did not have the packs. No Packs mean installing all that stuff yourself and worse, knowing which of those countless options one needs.

I did not know there was no hardware difference between nrf51822 and nrf51444. The production device code that I have to fix is on an nrf51822 so clearly I went with that! Of course the serious issue that I didn't know was that Keil resets everything when changing the target device AND migrating the project to the new format. In the end THAT is what cost two days of frustration.

I have another production device that I am going to have to work with that uses an nRF52805. I hope to use Segger Embedded Studio for that. What kind of issues will I face with this chip? Being an nRF52 series maybe I can use the latest SDK and SoftDevice???

RE: Difference between the various projects within an example in the nRF51 SDKs

Vidar Berg — Thu, 17 Dec 2020 07:51:19 GMT

Ok, that's good. But have you tried using the actual Keil5 project in 'arm5_no_packs'?

[quote user="brianreinhold"]Next step for me is to try and do this for device nrf51822[/quote]

You don't really need to change the device type. 51822 and 51422 are identical HW wise, the difference is that 51422 is licensed for use with the ANT protocol stacks. What's important is that you know the package variant (ie memory configuration), and adjust the memory layout accordingly. You can find an overview of the different package options here: nRF51822 IC revisions and variants

RE: Difference between the various projects within an example in the nRF51 SDKs

brianreinhold — Wed, 16 Dec 2020 16:09:18 GMT

I noted the messed up assembly code. But I have tried what you have said many times - load softdevice with nrfConnect, but any time I load the app hex after SoftDevice, COrtex M0. I have been doing this for a couple of days and there are few things I have not tried.

But I have always changed to nrf51822 - that is a variant I have not done.

That worked!!

The main cause of the problem was not the settings, but migrating to version 5 (uprojx). If I don't do that, it works and I receive heart rate measuements.

I also noted that I didnt need to migrate to the new Kiel version in this SDK. I do in SDK 8.1.0. In the 8.1.0 SDK the targets field is empty, not so here.

Keil told me I needed to migrate. That solved the target selection option in 8.1.0.

So what do I make of all this?

I have no good solution for SDK 8.1.0

For SDK 10 then

DO NOT migrate project to newer Keil project format - that changes too many default settings

If you move to a different device, the correct Debug settings need to be done.

Somewhere all those default settings need to available.

Next step for me is to try and do this for device nrf51822. I have to work with that chip. I will stick with SDK 12.3.0 and SoftDevice s130. But I will need the correct address settings. Are they different than the default target device?

RE: Difference between the various projects within an example in the nRF51 SDKs

Vidar Berg — Wed, 16 Dec 2020 16:06:30 GMT

I suggest you don't change the device type for now. The DK comes with the nrf51422_xxac variant.

The screenshot shows that a hardfault exception has been raised, and it looks like the Softdevice may be missing,

Please try to program the Softdevice seperately with either nrf connect or nrfjpog, and only load the app with keil.

Softdevice:

devzone.nordicsemi.com/.../3022.s130_5F00_nrf51_5F00_2.0.1_5F00_softdevice.hex

RE: Difference between the various projects within an example in the nRF51 SDKs

brianreinhold — Wed, 16 Dec 2020 15:58:36 GMT

It compiled out of the box. But I did change it to nrf51822 and then reset the parameters you had in your dialogs.

I have been unable to debug - set breakpoints in any case. Never makes it to main.

I am sorry, I dont know how to atrtach a png. Tried insert, no luck. But I have one,

Got it.

RE: Difference between the various projects within an example in the nRF51 SDKs

Vidar Berg — Wed, 16 Dec 2020 15:46:48 GMT

[quote userid="83646" url="~/f/nordic-q-a/69587/difference-between-the-various-projects-within-an-example-in-the-nrf51-sdks/285405#285405"]Took a while to copy the information and set it all up.[/quote]

Did you have to make any changes to the project? It should compile out-of-the-box.

[quote userid="83646" url="~/f/nordic-q-a/69587/difference-between-the-various-projects-within-an-example-in-the-nrf51-sdks/285405#285405"]when successfully installed, it does not work.[/quote]

Please pause the debugger and take a screenshot showing the CPU registers and editor view.

RE: Difference between the various projects within an example in the nRF51 SDKs

brianreinhold — Wed, 16 Dec 2020 15:38:12 GMT

Okay,

I did. Took a while to copy the information and set it all up. Same result. Installs when done in reverse, Cortex-M0 error if I install SoftDevice first. However, like the HTS, when successfully installed, it does not work.

Used nrfConnect to erase all content on the DK by the way.

RE: Difference between the various projects within an example in the nRF51 SDKs

Vidar Berg — Wed, 16 Dec 2020 15:30:05 GMT

I'm afraid I can't explain that either, the programming order should not matter. Could you quickly try another example such as the ble_app_hrs to see if you get the same result?

RE: Difference between the various projects within an example in the nRF51 SDKs

brianreinhold — Wed, 16 Dec 2020 15:27:02 GMT

I just tried installing backwards. I installed hts first, and then SoftDevice. And it worked.

I have NO idea why.

It installs, but it does not work. Cant set break points either. But its been two days to get it to install.

RE: Difference between the various projects within an example in the nRF51 SDKs

Vidar Berg — Wed, 16 Dec 2020 15:05:47 GMT

[quote user="brianreinhold"]Yes it is. I bought it a few months ago. I have been using it as a debugger for an nrf51822 chip in a production device (pin 20) but that is not connected now. I had to cut SB9 (advice from you guys) but have jumpered the current measurement pins to give power back to the main chip.[/quote]

That's ok as long as you remember to short the connection with a jumper when you want to program the nRF51 chip on the DK.

I tried to program the hts example as well and took some screenshots if you want to compare settings:

RE: Difference between the various projects within an example in the nRF51 SDKs

brianreinhold — Wed, 16 Dec 2020 14:27:23 GMT

Yes it is. I bought it a few months ago. I have been using it as a debugger for an nrf51822 chip in a production device (pin 20) but that is not connected now. I had to cut SB9 (advice from you guys) but have jumpered the current measurement pins to give power back to the main chip.

SoftDevice loads, the HTS hex does not.

RE: Difference between the various projects within an example in the nRF51 SDKs

Vidar Berg — Wed, 16 Dec 2020 14:23:28 GMT

No, it should have worked, we use the same flash algorithm for all 51 variants.

Is this the board you're using: https://www.nordicsemi.com/Software-and-tools/Development-Kits/nRF51-DK ?

RE: Difference between the various projects within an example in the nRF51 SDKs

brianreinhold — Wed, 16 Dec 2020 14:20:06 GMT

Well that would be a critical piece of information. I did switch to nrf51822 as that is the chip I have to work with. But resetting the values to the ones you provided did not solve the issue. Do I also need to do something in the flash config (the programming and algorithm starts)? Or are the values different for the nRF51822?

Since I am using the hts (thermometer) would that be different?

RE: Difference between the various projects within an example in the nRF51 SDKs

Vidar Berg — Wed, 16 Dec 2020 14:13:13 GMT

[quote userid="83646" url="~/f/nordic-q-a/69587/difference-between-the-various-projects-within-an-example-in-the-nrf51-sdks/285359#285359"]Or are all the SDK projects simply configured wrong memory layout wise?[/quote]

No, the default layout is correct. But note that Keil resets to the default layout if you change device variant (i.e. default layout for the device variant), could that be the reason?

Default layout for ble_app_hrs_s130 in SDK 12.3.0

RE: Difference between the various projects within an example in the nRF51 SDKs

brianreinhold — Wed, 16 Dec 2020 14:02:08 GMT

You are right, I have tried that many times, just now in SDK version 12.3.0 with the only soft device it supports. Same result. And the documentation you point to was where I started a few days ago.

There MUST be some important critical piece of information missing somewhere that every version I have tried fails the same way; 8.1.0, 10.0.0, and now 12.3.0. The last using s130 as that is the only SoftDevice provided.

Is this just impossible using Keil version 5?

Or are all the SDK projects simply configured wrong memory layout wise?

I know of only two places to change them; in the flash download config and the Target.

RE: Difference between the various projects within an example in the nRF51 SDKs

Vidar Berg — Wed, 16 Dec 2020 13:56:53 GMT

This error usually means that the app is overlapping with the Softdevice in flash. I guess you may have tried it already, but I suggest you first try to erase the flash, then program the Softdevice flash target followed by the app from Keil as explained in the SDK getting started guide here: Running examples that use a SoftDevice

RE: Difference between the various projects within an example in the nRF51 SDKs

brianreinhold — Wed, 16 Dec 2020 13:51:45 GMT

Okay, that was my guess. So I am choosing the correct one. One day I might get rid of that damn Cortex-M0 error on flashing.

RE: Difference between the various projects within an example in the nRF51 SDKs

Vidar Berg — Wed, 16 Dec 2020 13:32:13 GMT

Hi,

You should use "s110" configuration. The other ones pre-fixed with "ser_" are configured for serialization (i.e. 2 chip solution - one host processor + one connectivity process. See Running a serialized application).

Which SDK/Softdevice combination are you testing with (comp. matrix SDKs and SoftDevices )?

RE: Difference between the various projects within an example in the nRF51 SDKs

awneil — Wed, 16 Dec 2020 13:27:06 GMT

which SDK version?