# 34 questions

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## 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)

29
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## ppk broken ?

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

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

45
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3
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## 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)

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## 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)

61
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## 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)

349
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## 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)

106
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1
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1

## 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)

183
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1
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## 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)

45
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## 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)

179
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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

42
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1
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1

## 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)

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## 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

2. Using PPK v1.1.0

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

102
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## 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)

44
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## 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!!

782
views
1
vote
1

## 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)

65
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## 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.

171
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4
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## 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)

120
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## 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)

231
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1
vote
1

## 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)

74
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## 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)

55
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## PPK desktop application won't start. [closed]

I installed these softwares successfully:

1. python 2.7.13

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)

245
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4
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## 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)

112
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## 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?

Average window with Trigger On

Average ... (more)

172
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1
vote
1

## 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)

251
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2
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## 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)

106
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1
vote
1

## Connecting PPK to external board?

Hi

I have the PPK, and I see it needs either a JLink or a Nordic DK board to act as the interface to the PC.

I have a nrf52832 dk and also nRF52840 dk, so I was going to ... (more)

156
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3
2

## PPK little negative offset which is breaking AVG value

I use PPK wit ha stardard setup with all switches set to DK. Everything works fine, excepted that I have a little offset and the IDLE state is negative... which make the AVG value to be wrong (negative). See following ... (more)

278
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3
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## Power Profiler Kit ppk.py is not starting: pyqtgraph problem

I cannot start Power Profiler Kit software. I followed the installing instructions, but ended up with the following:

>python.exe ppk.py
Traceback (most recent call last):
File "ppk.py", line 19, in <module>
missing = str(ie).split("named ")[1 ...
(more)

150
views
2
1

## Power Profiler Kit incorrectly reporting max current.

I have the PPK measuring a custom nRF52-based board. The board consists of the nRF52, a I2C sensor, and bunch of caps (210uF worth). We built a custom board to do current measurement (this was before the PPK was released ... (more)

424
views
3
2

## Power Profiling Kit printing "Range not Detected" after running for a few minutes

After a few minutes of running, the Power Profiling kit will start printing out "Range not detected" messages in the console. It appears to be related with the "Average" window length. Increasing the average window length (I had it set ... (more)

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