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39 questions

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151
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5
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1
answer
Last activity 2017-12-05 12:57:44 +0200 by wilhelmsen

Is PPK(nrf Power Profiler Kit) a rubbish tool?

I cannot suffer this tool anymore. As u can see in the pic below, it provides a cursor mode to measure the currents of X1/X2. However, users always need to know the average current between X1 and X2, while ... (more)

71
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2
votes
1
answer
Last activity 2017-11-29 05:43:19 +0200 by Mohammad Afaneh flag of United States

Any tutorial on how to read the measurements reported by the PPK?

I've gone through the user manual for the Nordic Power Profiler Kit, but I can't find any basic information on how to understand the plots and the measurements reported under the Average and Trigger windows. For example, are ... (more)

40
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1
vote
1
answer
Last activity 2017-11-23 15:05:24 +0100 by Jørn flag of Norway

Preparing the development kit board

Hi

I finished preparing the nrf52832 board to use ppk and measured it with ppk. I am trying to repair the nrf52832 board. However, I do not understand the contents of ppk document, apply a jumper on P22. Could you ... (more)

149
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1
vote
2
answers
Last activity 2017-11-13 11:47:35 +0200 by nahro

Current measurements on nrf52840 pdk with PPK

ble_app_gls_pca10056_s140.hex

Hi, I am new in this field and i am trying to do current measurement on the nrf52840 PDK using PPK, in sleep mode(sd_power_system_off) i get average 40 micro amp which suppose to be 0,6! while ... (more)

44
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1
vote
1
answer
Last activity 2017-11-08 15:57:21 +0100 by wilhelmsen

PPK "Range not detected" error

I am using the PPK with SW v1.1.0 on a windows virtual machine on my mac. I'm testing custom hardware using the PPK regulator to supply power to my hardware.

There seem to be a few issues ... (more)

147
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1
vote
1
answer
Last activity 2017-10-23 23:27:07 +0200 by Sal

read back protection puts tag to high current consumption

Hi, I am seeing an issue where after enabling read back protection (rbp) on NRF52 and using sdk 12.1 the tag goes to state where it drains a lot of current.

command used: nrfjprog -f NRF52 --rbp ALL

I ... (more)

105
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1
vote
2
answers
Last activity 2017-10-20 14:14:20 +0100 by Bjørn Kvaale

ppk broken ?

Seems PPK is broken, it measures ~70mA no matter what I connect it to, even only measuring on a DK in shutdown.

measurement

I suspect this happend during measuring on a custom board, an j-link debugger was connected to the custom ... (more)

94
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1
vote
1
answer
Last activity 2017-10-20 09:38:27 +0100 by wilhelmsen

Power Profiler Kit tremendous delay, what's going on?

Hello, I'm trying to measure the current profile with the PPK (HW Rev:1.1.0, SW: 1.1.0) but I see a lot of strange behaviors.

My firmware initializes everything and the waits a button event. When ... (more)

85
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3
votes
1
answer
Last activity 2017-10-17 09:04:50 +0200 by Martin Børs-Lind flag of Norway

Power consumption reading a large fifo - Easydma list vs Cpu reading

I am reading a large FIFO buffer from a sensor and there are at least two ways to do it - by simply reading the FIFO using the CPU and SPI in chunks of 255 byte blocks, or using EasyDma list ... (more)

28
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no
votes
no
answers
Last activity 2017-10-13 04:05:55 +0100 by ShannonPahl

PPK + DK, peripheral current not showing up in PPK [closed]

I've connected some sensors using I2C and SPI to a DK and their power consumption is not being reflected in the PPK. Without any BLE acitivity, the current is almost zero whereas I'd expect atleast a constant 150uA ... (more)

68
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no
votes
2
answers
Last activity 2017-10-09 16:41:59 +0100 by Folu

PPK logging very long periods

Hi.

I'm using the Power Profiler Kit and the PPK desktop application to log the power consumption of my device. This works well for short time spans.

However, I'd also like to log longer periods. Like days or ... (more)

637
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no
votes
1
answer
Last activity 2017-09-20 13:41:09 +0200 by Martin Børs-Lind flag of Norway

PowerProfilerKit: Negative current / Backfeeding

Hi, Is it safe to backfeed some current into the PPK. I use the PPK to measure the power consumption of a battery powered IoT device. I disconnect the battery and use the PPk to supply my device. However, when ... (more)

204
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1
vote
1
answer
Last activity 2017-08-10 14:07:59 +0100 by wilhelmsen

PPK Software

I was just wondering if theres plans to migrate the PPK software to be an app in the NRFConnect tool. I love the NRFConnect tool and I wasnt able to get the PPK software running on a mac. I ended ... (more)

50
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3
votes
no
answers
Last activity 2017-08-10 01:07:37 +0100 by Aaron

PPK v1.1 hangs on linux (bug report)

It doesn't look like ppk is in the Nordic github, so leaving this here:

On linux, ppk v1.0 work great, but v1.1 hangs and takes forever to draw the windows. I traced the problem to the logging ... (more)

202
views
2
votes
1
answer
Last activity 2017-08-01 09:25:56 +0100 by wilhelmsen

PPK software - latest version

I am using a PPK with v1.0.0, but elsewhere in DevZone I see references to later versions of the software. Where can I download the later versions from? Have I missed a link?

Thanks

43
views
1
vote
1
answer
Last activity 2017-08-01 09:21:18 +0100 by wilhelmsen

PPK cancelling 'start logging'

Hi. Great that you have added logging capability to the PPK desktop app. This was exactly what I needed.

I noticed one minor issue with the logging: When starting logging, it asks for a file to save the log to ... (more)

1k
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no
votes
1
answer
Last activity 2017-07-31 13:16:55 +0200 by Bjørn Spockeli flag of Norway

PPK Question [closed]

Hello,

We encounter the problem after upgraded the PPK software. There are different results when using PPK v1.0.0 and v1.1.0.

  1. Using PPK v1.0.0 image description

  2. Using PPK v1.1.0 image description

(The highlighted spikes are active by ... (more)

105
views
no
votes
1
answer
Last activity 2017-07-06 11:09:32 +0100 by Henrik

PPK and automated testing

Hi,

I'm thinking about implementing automated testing of current consumption using the PPK, and in the PPK blog it says: "We are planning on also making a Python API that developers can use to create their own automated tests ... (more)

61
views
no
votes
2
answers
Last activity 2017-07-03 09:26:17 +0100 by Sigurd flag of Norway

ppk install 2

Hello

I have a problem...

'python_packages.bat' file can not be installed...

error message: 'python' is not an internal or external command, executable program, or batch file.

How to solve...

Thank you!!

800
views
1
vote
1
answer
Last activity 2017-06-28 12:41:57 +0100 by wilhelmsen

PPK: Calibration sequence question

When the PPK calibrates and turns off the DUT, does the nRF52832 on the PPK disconnect from the External DUT lines? My DUT has a LOT of capacitance on it, and it takes several seconds to fully discharge the caps ... (more)

83
views
no
votes
1
answer
Last activity 2017-06-18 15:53:23 +0100 by Daniel Wang flag of Korea, Republic of

Problem using nRF52 with PPK

Hello,

I am working with the nRF52 DK and the PPK (Power Profiler Kit), however I can only program the DK when the PPK is connected. Once I disconnect the PPK the message error is: "No Device found'.

Regards.

190
views
4
votes
1
answer
Last activity 2017-06-02 14:53:53 +0100 by vit bernatik

Power Profiler Kit is not detected

Hello I have this error:

Checking installed packages
pyside:          1.2.4
pyqtgraph:       0.10.0
numpy:           1.12.1
pynrfjprog:      9.0.0
Warning: The software is tested with PyQtGraph 0.9.10, and may not work with your ...
(more)

135
views
no
votes
1
answer
Last activity 2017-06-01 10:54:06 +0100 by Sigurd flag of Norway

PPK Current Measurement

Hi,

Just wanted to confirm what the average current measured by the PPK represents. So for example if I have AVG in average window as 2.5mA, is that only the BLE (i.e. transmission) current or all of the ... (more)

256
views
1
vote
1
answer
Last activity 2017-05-11 18:56:58 +0200 by Oliver

Power Profiler Kit Offset/Miscalibrated?

Hi there,

I'm using the PPK (v1.1.0) to measure my nRF52 DK (v1.1.1). My sample programm is very simple: set up the LFXO, RTC with 8s CC-periode and the BSP_LEDs:

const nrf_drv_rtc_t rtc = NRF_DRV_RTC_INSTANCE(0 ...
(more)

75
views
no
votes
1
answer
Last activity 2017-04-07 09:28:03 +0100 by wilhelmsen

PPK external trigger

Hello:

I tried to find this in the documentation but could not. Regarding the external trigger to the PPK (TRIG IN pin). Does this require a high-to-low transition, a low-to-high transition, or a pulse? If it requires a pulse, what ... (more)

61
views
no
votes
no
answers
Last activity 2017-03-16 04:20:58 +0100 by CSUmilk

PPK desktop application won't start. [closed]

image description

I installed these softwares successfully:

  1. python 2.7.13

  2. SEGGER J-Link V5.12g

  3. nRF5x-Command-Line-Tools_9_0_0_Installer

  4. the PPK software package

My PC platform is 64-bit Microsoft Windows.

I just could not open the PPK desktop application by click ppk.py shortcut, but ... (more)

323
views
4
votes
1
answer
Last activity 2017-03-13 17:55:07 +0200 by endnode

Is it possible to select the debug port used on the nRF52 DK?

If I understand the nRF52 DK, there's 3 physical debug-out ports on the board. One if for the nRF52 on the DK, which is also brought out through P5. The second one is brought out through P20, and the ... (more)

123
views
3
votes
1
answer
Last activity 2017-03-09 15:12:36 +0100 by CurtisHx

PPK reports different average current if trigger is running.

Take a look at these screenshots. With the trigger enabled, the average current consumption is reported at 13.21uA. With the trigger disabled, the average current consumption is 5uA.

So which one is correct?

image description

image description

Average window with Trigger On

image description

Average ... (more)

205
views
1
vote
1
answer
Last activity 2017-03-09 11:29:32 +0200 by wilhelmsen

Power Profiler Kit fails to measure milliamps correctly

Today when I started power profiler kit, it suddenly started to show peak values like 80 mA. This has not happened before, but the values with the same hardware have been around 20-30 mA. So I checked what the PPK ... (more)

264
views
2
votes
1
answer
Last activity 2017-02-06 12:41:14 +0200 by wilhelmsen

Power Profiling Kit RTT Documentation?

We would like to use the PPK for automating some of our tests. Is there any documentation on how to drive the PPK over RTT? If push really comes to shove, we can always read what's in ppk.py ... (more)

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  • Resolved questions: 11225
  • Unanswered questions: 3786
  • Total questions: 27708