On 28/05/13 00:06, the mail apparently from Robert Brehm included:

Just tried with the config example (but also had tried that earlier already) - however, no success. It also still doesn't complain if I just run it without the AEP or I unplug the AEP while arm-probe is running - there is no difference to the output.

No it won't complain just wait until it has seen all the AEPs mentioned in the config file before starting.

Using exactly what's pushed to git ---->

$ arm-probe # configuration: ./config # config_name: PandaBoardES-B1-ANDY # trigger: 0.400000V (hyst 0.200000V) 0.000000W (hyst 0.200000W) 400us Configuration: PandaBoardES-B1-ANDY # date: Tue, 28 May 2013 08:05:36 +0800 # host: kaiji # + /dev/serial/by-id/usb-NXP_SEMICOND_ARM_Energy_Probe_S_NO00000000-if00 Starting... sending start to 0 # VDD_VCORE1 SoCVCORE1/MPU VBAT #ff0000 SoC # VDD_VCORE2 SoCVCORE2/IVA\_AUDIO VBAT #c00000 SoC # VDD_VCORE3 SoCVCORE3/CORE VBAT #a00000 SoC # VBAT VBAT DC_IN #555555 virtual # # time SoCVCORE1/MPU(V) SoCVCORE1/MPU(A) SoCVCORE1/MPU(W) SoCVCORE2/IVA\_AUDIO(V) SoCVCORE2/IVA\_AUDIO(A) SoCVCORE2/IVA\_AUDIO(W) SoCVCORE3/CORE(V) SoCVCORE3/CORE(A) SoCVCORE3/CORE(W) ARMED 0.17 0.0000 0.00000 0.16 0.0000 0.00000 0.15 0.0000 0.00000 ARMED 0.15 0.0036 0.00053 0.17 0.0000 0.00000 0.17 0.0000 0.00000 ARMED 0.16 0.0000 0.00000 0.17 0.0000 0.00000 0.16 0.0024 0.00037 ARMED 0.16 0.0036 0.00057 0.17 0.0000 0.00000 0.15 0.0000 0.00000 ARMED 0.17 0.0000 0.00000 0.15 0.0015 0.00023 0.16 0.0000 0.00000 ARMED 0.17 0.0000 0.00000 0.16 0.0000 0.00000 0.17 0.0000 0.00000 ARMED 0.16 0.0000 0.00000 0.16 0.0022 0.00035 0.17 0.0000 0.00000 ARMED 0.16 0.0000 0.00000 0.16 0.0000 0.00000 0.15 0.0007 0.00011 ARMED 0.18 0.0000 0.00000 0.15 0.0000 0.00000 0.15 0.0018 0.00027 ARMED 0.17 0.0000 0.00000 0.15 0.0015 0.00023 0.17 0.0000 0.00000 ARMED 0.17 0.0000 0.00000 0.16 0.0000 0.00000 0.15 0.0030 0.00047 ARMED 0.17 0.0000 0.00000 0.16 0.0000 0.00000 0.16 0.0028 0.00045 ARMED 0.17 0.0000 0.00000 0.15 0.0000 0.00000 0.16 0.0024 0.00037 ARMED 0.17 0.0013 0.00022 0.17 0.0000 0.00000 0.15 0.0000 0.00000 ARMED 0.17 0.0000 0.00000 0.16 0.0000 0.00000 0.15 0.0000 0.00000 ARMED 0.18 0.0000 0.00000 0.16 0.0000 0.00000 0.16 0.0000 0.00000 ARMED 0.16 0.0004 0.00006 0.17 0.0000 0.00000 0.16 0.0000 0.00000 ARMED 0.18 0.0000 0.00000 0.17 0.0000 0.00000 0.14 0.0003 0.00004 ARMED 0.16 0.0063 0.00102 0.17 0.0000 0.00000 0.16 0.0000 0.00000 ARMED 0.16 0.0036 0.00056 0.16 0.0000 0.00000 0.16 0.0000 0.00000 ARMED 0.17 0.0000 0.00000 0.16 0.0000 0.00000 0.16 0.0000 0.00000 ARMED 0.18 0.0000 0.00000 0.16 0.0000 0.00000 0.15 0.0018 0.00027 ARMED 0.15 0.0000 0.00000 0.17 0.0000 0.00000 0.16 0.0001 0.00001 ARMED 0.17 0.0049 0.00082 0.17 0.0000 0.00000 0.15 0.0000 0.00000 ARMED 0.16 0.0063 0.00102 0.17 0.0000 0.00000 0.15 0.0000 0.00000 ARMED 0.16 0.0000 0.00000 0.14 0.0028 0.00040 0.17 0.0000 0.00000 ARMED 0.17 0.0027 0.00044 0.17 0.0000 0.00000 0.15 0.0000 0.00000 ARMED 0.17 0.0036 0.00060 0.17 0.0000 0.00000 0.15 0.0000 0.00000 ARMED 0.16 0.0059 0.00092 0.17 0.0000 0.00000 0.16 0.0000 0.00000 ARMED 0.16 0.0000 0.00000 0.16 0.0028 0.00043 0.17 0.0000 0.00000 ARMED 0.16 0.0000 0.00000 0.15 0.0015 0.00023 0.16 0.0000 0.00000 ARMED 0.16 0.0000 0.00000 0.17 0.0000 0.00000 0.16 0.0000 0.00000 ARMED 0.16 0.0000 0.00000 0.16 0.0015 0.00023 0.16 0.0000 0.00000 ARMED 0.16 0.0036 0.00057 0.17 0.0000 0.00000 0.16 0.0000 0.00000 ARMED 0.18 0.0013 0.00023 0.16 0.0000 0.00000 0.15 0.0000 0.00000 ARMED 0.16 0.0000 0.00000 0.16 0.0000 0.00000 0.15 0.0028 0.00043 ARMED 0.17 0.0000 0.00000 0.17 0.0000 0.00000 0.16 0.0020 0.00031 ARMED 0.17 0.0000 0.00000 0.15 0.0000 0.00000 0.15 0.0030 0.00046 ARMED 0.16 0.0000 0.00000 0.17 0.0011 0.00018 0.17 0.0000 0.00000 ^C

VDD_VCORE1: 0.14V < 0.165Vavg < 0.20V, 0.0000A < 0.00091Aavg < 0.0063A, 0.000000W < 0.000146Wavg < 0.001208W VDD_VCORE2: 0.13V < 0.162Vavg < 0.19V, 0.0000A < 0.00037Aavg < 0.0032A, 0.000000W < 0.000058Wavg < 0.000512W VDD_VCORE3: 0.13V < 0.159Vavg < 0.19V, 0.0000A < 0.00043Aavg < 0.0030A, 0.000000W < 0.000067Wavg < 0.000544W exited

I noticed that on this laptop with USB3 ports, AEP won't work plugged in direct (LMP, using a similar NXP chip are the same). They need to be connected via a USB2 hub in order to work. Maybe that's something to do with it.

-Andy

---

From: Andy Green [andy.green@linaro.org] Sent: 27 May 2013 14:14 To: Robert Brehm Cc: linaro-dev@lists.linaro.org Subject: Re: arm-probe (with ARM Energy probe)

On 27/05/13 16:53, the mail apparently from Robert Brehm included:

...

Hi,

I have downloaded and compiled/installed (on Ubuntu 12.04 the arm-probe from: https://git.linaro.org/gitweb?p=tools/arm-probe.git%3Ba=tree

Now I am facing some issues using the tool. My Arm Energy Probe shows up as virtual serial port as /dev/ttyACM0 and I am able to open that port via “

# sudo screen /dev/ttyACM0

and when I “ctrl-c” in screen I get a response from the energy probe saying “ARM Energy Probe”. So the probe should be working fine.

If I however run

# arm-probe –c ch1

All it just shows is the blelow, there are no data streamed out at all:

# configuration: ./config # config_name: K70-SOM # trigger: 0.400000V (hyst 0.200000V) 0.000000W (hyst 0.200000W) 400us Configuration: K70-SOM # date: Fri, 24 May 2013 15:45:57 +0200 # host: rb #

This is the content of my configuration file:

# arm-probe configuration file # # setup name K70-SOM /dev/ttyACM0 ch1 0.470 1 -0.000253 0 VCORE1/MPU ch2 0.470 2 -0.000253 0 VCORE1/MPU ch3 0.470 3 -0.000253 0 VCORE1/MPU

Have you tried using the config file here?

https://git.linaro.org/gitweb?p=tools/arm-probe.git%3Ba=blob%3Bf=config%3Bh=...

It changed recently to use /dev/serial/by-id/... and instead of polling for AEPs just collect all the ones mentioned.

-Andy

-- Andy Green | Fujitsu Landing Team Leader Linaro.org │ Open source software for ARM SoCs | Follow Linaro http://facebook.com/pages/Linaro/155974581091106 - http://twitter.com/#%21/linaroorg - http://linaro.org/linaro-blog

On 28/05/13 09:23, the mail apparently from Christoffer Dall included:

[...]

I noticed that on this laptop with USB3 ports, AEP won't work plugged in
direct (LMP, using a similar NXP chip are the same).  They need to be
connected via a USB2 hub in order to work.  Maybe that's something to do
with it.

Are you by any chance running from within a VM on a mac? I've seen similar behavior in that scenario.

Also, have you tried running as sudo just to verify it's not a permission issue? I seem to remember this happening for me once in a while too when I was running power measurements, and only some combination of fully resetting the probe and booting the machine did the trick, for whatever it's worth.

It's x86_64 Fedora directly on an Intel laptop with only 2 x USB3 ports, with a rawhide 3.10-rc"0" kernel. It's quite possible it's a quirk of the driver for that particular host controller, but there is no problem via even a very cheap USB2 hub.

About root yes depending what groups your user is in or what udev has got, you need to run arm-probe or aepd as root just to access the ttyACM.

-Andy