Integrating DWS3000 with nRF52840 DK with BLE stack enabled

RE: Integrating DWS3000 with nRF52840 DK with BLE stack enabled

Einar Thorsrud — Fri, 16 Apr 2021 14:36:56 GMT

Hi,

There are other potential ways to fix it but this is the simplest. Other more complicated is as suggested in the errata text. This is not fixed in any SDK release to this date.

RE: Integrating DWS3000 with nRF52840 DK with BLE stack enabled

Ukhan — Fri, 16 Apr 2021 04:17:43 GMT

Hi,

Thanks for sharing this.
I could fix the issue that way, but is it a way around or do we have it fixed in the recent SDK version?

Regard.

RE: Integrating DWS3000 with nRF52840 DK with BLE stack enabled

Einar Thorsrud — Thu, 15 Apr 2021 14:17:40 GMT

Hi,

The SoftDevice restricts access to the memory and peripheral it uses. If the application writes to any of it, you will get an error. The issue here is that the workaround is not compatible with the SoftDevice as it does exactly that. You can see more about it and an alternative way to do it in this post.

RE: Integrating DWS3000 with nRF52840 DK with BLE stack enabled

Ukhan — Thu, 15 Apr 2021 04:19:22 GMT

Correctly pointed that out, thanks.

Now I am getting a different error

<error> app: SOFTDEVICE: INVALID MEMORY ACCESS. INFO 0x1

I further tried to debug to check where it enters restricted memory range.

In Decawave APIs, from the function read_dev_id() it enters readfromspi() and later enters spim_xfer() where condition p_spim == NRF_SPIM3 is met and anomaly_198_enable is called, here we get the error of INVALID MEMORY ACCESS.

Could you please guide on this?

Thanks.

RE: Integrating DWS3000 with nRF52840 DK with BLE stack enabled

Einar Thorsrud — Wed, 14 Apr 2021 19:15:52 GMT

Hi,

OK. so at line 107 in nrfx_glue.h in SDK 16 you have the assert in the NRFX_IRQ_PRIORITY_SET macro:

#define NRFX_IRQ_PRIORITY_SET(irq_number, priority) \
    _NRFX_IRQ_PRIORITY_SET(irq_number, priority)
static inline void _NRFX_IRQ_PRIORITY_SET(IRQn_Type irq_number,
                                          uint8_t   priority)
{
    ASSERT(INTERRUPT_PRIORITY_IS_VALID(priority));
    NVIC_SetPriority(irq_number, priority);
}

And as you are using BLE that means the SoftDevice is present, so INTERRUPT_PRIORITY_IS_VALID is:

#define INTERRUPT_PRIORITY_IS_VALID(pri) ((((pri) > 1) && ((pri) < 4)) || \
                                          (((pri) > 4) && ((pri) < 8)))

But you have some code somewhere that is trying to register an interrupt priority which is illegal (reserved by the SoftDevice). So that needs to be fixed.

RE: Integrating DWS3000 with nRF52840 DK with BLE stack enabled

Ukhan — Wed, 14 Apr 2021 04:45:33 GMT

Hi,

16.0.0 nRF5 SDK

Can be Downloaded from www.nordicsemi.com/.../Download

RE: Integrating DWS3000 with nRF52840 DK with BLE stack enabled

Einar Thorsrud — Tue, 13 Apr 2021 12:44:44 GMT

Hi,

Which SDK version do you use (so that I can look at the correct version of nrfx_glue.h)? The key is to find where the error code comes from so that we can "follow the trail".

RE: Integrating DWS3000 with nRF52840 DK with BLE stack enabled

Ukhan — Tue, 13 Apr 2021 01:48:53 GMT

Hi Einar,

Thanks for your kind response.
Upon following the instructions and enabling the logs I get the following:

<error> app: ERROR 3735928559 [Unknown error code] at ../../../../../../integration/nrfx/nrfx_glue.h:107
PC at: 0x0002DC2F
<error> app: End of error report

Any help at this point would be much appreciated.

Kind regards,

RE: Integrating DWS3000 with nRF52840 DK with BLE stack enabled

Einar Thorsrud — Mon, 12 Apr 2021 13:37:10 GMT

Hi,

Please make a debug build to get more error information out of the log. If you use SES, then simply select "Debug" from the build configuration dropdown. If using another toolchain, define "DEBUG" and "DEBUG_NRF" for the project. Then the log should tell you the file name, file number and error code that was detected, which is a good starting point for digging further down into the issue.