Issue with SDK 13.1.0 Power management

RE: Issue with SDK 13.1.0 Power management

Pratyush Dave — Mon, 24 Jul 2017 22:56:10 GMT

I was able to get the “pwr_mgmt” example working in IAR in SDK 13.1.0. I ran the debugger and found out that the application was getting stuck in the loop within the function “nrf_delay_us()” which is in the file “nrf_delay.h” under the “components” folder of the SDK files. The function, nrf_delay_us(), is written in assembly language, and for some reason, was not generating the correct code when built with IAR v.8.11. There are two other file that I had to replace as well. Here are the details as follows.

Download SDK 12.3.0 and extract all the files into a folder where you keep nRF5 SDKs.
Replace the following three files in SDK v.13.1.0 from the corresponding files in SDK v.12.3.0.
Replace the file “nrf_delay.h” in the path, “\components\drivers_nrf\delay\”, with the same file from the corresponding path in SDK 12.3.0.
Replace the file “retarget.c” in the path, “\components\libraries\uart\” with the same file from the corresponding path in SDK 12.3.0.
Replace the file “port.c” in the path ““\external\freertos\portable\IAR\nrf52\” with the same file from the corresponding path in SDK 12.3.0. NOTE: This will fix an issue of getting warning messages if you are using FreeRTOS, and are getting these warnings when building an SDK example project that uses FreeRTOS.
Next rebuild all the files for the pwr_mgmt project and test it.

RE: Issue with SDK 13.1.0 Power management

Jakub Rzeszutko — Mon, 24 Jul 2017 06:22:08 GMT

I am affraid I will not have easy fix for other IAR examples. If you have possibility to downgrade IAR version to 7.60.2 I would recommend it.

Please refere to this topic: devzone.nordicsemi.com/.../

RE: Issue with SDK 13.1.0 Power management

glypat22 — Fri, 21 Jul 2017 16:24:38 GMT

That's awesome - thanks Jakub! Should I repeat this same trick for all other that are not working on SDK 13.1 e.g. FreeRTOS,GPIOTE, PWM, RTC etc

RE: Issue with SDK 13.1.0 Power management

Jakub Rzeszutko — Fri, 21 Jul 2017 09:40:59 GMT

Hi,

Fix is quite easy to implement, you need to only replace two files in SDK13 from SDK12.3:

nrf_delay.h (sdk\nrf5\components\drivers_nrf\delay)
retarget.c (\sdk\nrf5\components\libraries\uart)

RE: Issue with SDK 13.1.0 Power management

glypat22 — Thu, 20 Jul 2017 20:47:56 GMT

Hi Jakub - do let me know as soon as you find the cause/solution. I would like to run the power management as well as FreeRTOS app soon on nRF52840 dev board.

RE: Issue with SDK 13.1.0 Power management

glypat22 — Thu, 20 Jul 2017 16:55:27 GMT

Ooops - we are using IAR 8.11.1 and nRF52840 board.

RE: Issue with SDK 13.1.0 Power management

glypat22 — Thu, 20 Jul 2017 16:54:29 GMT

Ok thanks! I also confirmed that power management example from SDK 12.3 works fine on 8.11.1. However, FreeRTOS example doesn't work. In fact, all the examples in SDK12.3 are not for nRF52840 but for nRF52832 chipsets.

RE: Issue with SDK 13.1.0 Power management

Jakub Rzeszutko — Thu, 20 Jul 2017 11:24:54 GMT

Interesting, I confirm that in SDK12.3 example is working correctly with IAR 8. I will start task internally and we will try to find a root cause.

Thank you for checking that.

RE: Issue with SDK 13.1.0 Power management

Daniel Wang — Thu, 20 Jul 2017 11:13:50 GMT

hi glypat22, it should work fine with SDK 12.3 using IAR 8

RE: Issue with SDK 13.1.0 Power management

Jakub Rzeszutko — Thu, 20 Jul 2017 06:44:32 GMT

I guess it will be fixed by NORDIC latest when we will start official IAR 8.x.x support.

RE: Issue with SDK 13.1.0 Power management

Jakub Rzeszutko — Thu, 20 Jul 2017 06:43:49 GMT

It was tested with: IAR Workbench 7.60.2 (supported version according to release notes) and it compiled without warnings.

RE: Issue with SDK 13.1.0 Power management

glypat22 — Thu, 20 Jul 2017 06:42:24 GMT

So, what do you think when the solution will be available? and will it be by IAR or Nordic?

RE: Issue with SDK 13.1.0 Power management

glypat22 — Thu, 20 Jul 2017 06:38:30 GMT

I tried couple of others - they work fine except the FreeRTOS blinky program. It fails with error: "Error[Og014]: Warning in inline assembly: "DC or DS directive while in CODE area." Looks like SDK 13.1.0 wasn't tested thoroughly for all examples. I wish I can have fix for this as well.

RE: Issue with SDK 13.1.0 Power management

Jakub Rzeszutko — Thu, 20 Jul 2017 06:31:44 GMT

Hi,

I've checked with IAR 8.11.xx and I confirm it is not working, unfortunately IAR 8.x.x is not supported in SDK 13.1.

RE: Issue with SDK 13.1.0 Power management

glypat22 — Thu, 20 Jul 2017 06:22:48 GMT

Thanks for trying. I am using IAR 8.11.2.13606.

RE: Issue with SDK 13.1.0 Power management

Jakub Rzeszutko — Thu, 20 Jul 2017 06:18:37 GMT

Hi,

Couple of minutes ago I have downloaded SDK 13.1 from this page: developer.nordicsemi.com/.../

Next I've compiled pwr_mngt example with IAR 7.80.4 for PCA10056 Board and it just worked fine.

Please let me know which IAR version are you using?

RE: Issue with SDK 13.1.0 Power management

endnode — Thu, 20 Jul 2017 00:02:21 GMT

So it's only one example, remaining IAR projects in nRF5 SDK v13.1.0 work? Then hopefully Nordic support team will find the bug tomorrow;)

RE: Issue with SDK 13.1.0 Power management

glypat22 — Wed, 19 Jul 2017 23:39:54 GMT

Thanks but this is not relevant to question. I am working on nRF52 and my question is specific to power management example. Blinky example works just fine so that confirms that I have working development environment for IAR and SDK 13.1.0 and nRF52840 board. We are using only IAR.

RE: Issue with SDK 13.1.0 Power management

endnode — Wed, 19 Jul 2017 23:08:52 GMT

Some hints to IAR development with nRF5x chips are here.