Sample code at ncs to test ADXL362 and ADXL372

RE: Sample code at ncs to test ADXL362 and ADXL372

Maria Gilje — Tue, 09 Apr 2024 10:31:43 GMT

Hi Jeffrey,

Sorry, my last reply was completely wrong.

The way to select the measurement mode is to include CONFIG_ADXL372_MEASUREMENT_MODE=y in your prj.conf. Sorry about the misinformation.

Best regards,

Maria

RE: Sample code at ncs to test ADXL362 and ADXL372

Jeffery — Mon, 08 Apr 2024 01:32:15 GMT

Hi Maria

As below. I added CONFIG_ADXL372_OP_MODE=CONFIG_ADXL372_MEASUREMENT_MODE in prj.conf. Then, it failed to build at VS code.

Jeffery

RE: Sample code at ncs to test ADXL362 and ADXL372

Maria Gilje — Wed, 03 Apr 2024 11:08:29 GMT

Hi Jeff,

Thank you for your patience.

[quote user="Jeffery"]

If yes, how to only adjust ADXL372 configurations at prj.conf ? Then, ADXL372 can run motion sensing at

accel_polling sample.

[/quote]

You can select the measurement mode with CONFIG_ADXL372_OP_MODE=CONFIG_ADXL372_MEASUREMENT_MODE in prj.conf.

Best regards,

Maria

RE: Sample code at ncs to test ADXL362 and ADXL372

Jeffery — Mon, 25 Mar 2024 08:48:30 GMT

Hi Maria

Thanks for your information.

At ncs, it defined a lot of ADXL362 and ADXL372 configurations.

So, all what developer has to do is only to adjust these definitions at prj.conf to yes or no, or given some

legal value. Then, after built up the project, it mapped related value and fill to these registers.

Developer didn't need to implement low level SPI driver and then write registers.

Is it correct?

If yes, how to only adjust ADXL372 configurations at prj.conf ? Then, ADXL372 can run motion sensing at

accel_polling sample.

Thanks

Jeff

RE: Sample code at ncs to test ADXL362 and ADXL372

Maria Gilje — Mon, 25 Mar 2024 07:38:21 GMT

Hi Jeff,

[quote user="Jeffery"]Knocking Thingy91, uart can log non-zero xyz values.[/quote]

Great that the ADXL372 is working as intended.

The high-g events are detected when the high-pass filter on the ADXL372 is enabled. See the section in the datasheet titled Low-Pass Activity Detect Filter. The section contains some information about the high pass filter as well. When using the ADXL372 for movement detection, the high-pass filter should be disable. This is possible through the power control register. See Table 67. Bit Descriptions for POWER_CTL. Link to the datasheet is here.

Best regards,

Maria

RE: Sample code at ncs to test ADXL362 and ADXL372

Jeffery — Thu, 21 Mar 2024 03:54:49 GMT

Hi Maria

Thanks.

Knocking Thingy91, uart can log non-zero xyz values.

So, ADXL372 default is impact sensing. For motion sensing as ADXL362 did, how to make it?

I cannot find this information at Analog Devices page.

Jeff

RE: Sample code at ncs to test ADXL362 and ADXL372

Maria Gilje — Wed, 20 Mar 2024 15:30:39 GMT

Hi Jeff,

[quote user="Jeffery"]At accel_polling sample, I only added overlay file for alias. So, shall I add some kinf og configurations at[/quote]

Both ADXL372 and ADXL362 are configured in the Thingy:91 device tree, so you don't have to do anything more to configure the accel_polling sample.

[quote user="Jeffery"]Set up alias for both. ADXL362 can output xyz data as movements. ADXL372 output xyz zero.[/quote]

Depending on the configuration of ADXL372 it will sense motion or impacts. See this post from Analog Devices EngineerZone where there is an example on the output from the sensor.

If your ADXL372 is configured to sense impacts, it needs an impact to sense to output non-zero values.

Best regards,

Maria

RE: Sample code at ncs to test ADXL362 and ADXL372

Jeffery — Mon, 18 Mar 2024 01:28:19 GMT

Hi Maria

I tried the accel_polling sample code at Thingy91 but not customer board.

Set up alias for both. ADXL362 can output xyz data as movements. ADXL372 output xyz zero.

At accel_polling sample, I only added overlay file for alias. So, shall I add some kinf og configurations at

prj.conf to let ADXL372 work?

Jeff

RE: Sample code at ncs to test ADXL362 and ADXL372

Maria Gilje — Thu, 14 Mar 2024 15:07:29 GMT

Hi Jeff,

Sorry about the delay.

Susheel is away and we needed some time to get his work distributed to other engineers.

A small disclaimer: I had to start from scratch with this and read up along the way, so there could be information and contexts I'm not aware of.

The ADXL372 is used as the shock sensor, do you do anything to see if the output is zero regardless of any impacts on it?

The other thing I can think of is to verify that the ADXL372 is connected to your board correctly according to the schematics (i.e. for the Thingy:91 on the Infocenter).

Best regards,

Maria

RE: Sample code at ncs to test ADXL362 and ADXL372

Jeffery — Thu, 14 Mar 2024 03:15:55 GMT

How about it? Thanx

RE: Sample code at ncs to test ADXL362 and ADXL372

Jeffery — Mon, 11 Mar 2024 06:24:28 GMT

Hi Susheel

Tried ncs2.5.0 accel_polling sample

1. Board configuration "thingy91_nrf9160_ns"

2. Add overlay file "thingy91_nrf9160_ns.overlay"

Content=>

/ {
aliases {
accel0 = &adxl362;
accel1 = &adxl372;
};
};

Then, build and flash the code to Thingy91.

Observed the uart output. ADXL362 xyz output butADXL372 xyz kept zero.

How shall I do to let ADXL372 work? Thanks.

Jeff

RE: Sample code at ncs to test ADXL362 and ADXL372

Susheel Nuguru — Wed, 06 Mar 2024 08:54:55 GMT

I am sorry about this, it looks like I got carried away and linked you old documentation.

It looks like this sample was removed in upstream zephyr repo in v3.2.0 in this and this PR. As you can see the reason is that accel_polling sample shows the usage of this driver. You can find that in Zephyr/samples/sensor folder.

RE: Sample code at ncs to test ADXL362 and ADXL372

Jeffery — Wed, 06 Mar 2024 08:15:24 GMT

Hi Susheel

1. I tried to find ADXL362 sample at ncs2.5.0 zephyr folder as below. However, I cannot find it.

Where can I find it?

2. How about ADXL372 sample? Thanks

Jeff

RE: Sample code at ncs to test ADXL362 and ADXL372

Susheel Nuguru — Tue, 05 Mar 2024 18:31:51 GMT

You can simply build and flash ADXL362 sample when you chose the right board files. If your module is mostly based on Thingy91 schematics then probably you can chose thingy91 as your board and try to run this sample on your module. Give it a try and let me know if you can see some data from this accelerometer.