On Saturday 08 April 2017 01:46:45 Erik Christiansen wrote:
> On 07.04.17 13:16, Gene Heskett wrote:
> > I do not know what the current clock speed is, could be as low as
> > 700 or as high as 1200 MHz.
>
> What I usually do is no more than:
>
> $ dmesg | grep MHz
> [0.00] Detected 1499.98
On 08.04.17 03:08, Gene Heskett wrote:
> >
> On the pi 3b, the closest I can come is:
> dmesg |grep timer
> [0.00] Architected cp15 timer(s) running at 19.20MHz (phys).
> [0.18] Switching to timer-based delay loop, resolution 52ns
> [0.002230] Calibrating delay loop (skipped),
> On 8. Apr 2017, at 08:31, Chris Radek wrote:
>
> On Sat, Apr 08, 2017 at 12:05:59AM -0500, hubert wrote:
>> I have a Servo that has an undocumented feedback encoder. I am
>> interested in trying to decipher it. Is it feasible to run the servo
>> without feedback connected, and put a dig
On Saturday 08 April 2017 03:56:48 Erik Christiansen wrote:
> dmidecode | grep MHz
pi@raspberrypi:~ $ sudo dmidecode | grep MHz
pi@raspberrypi:~ $ sudo dmidecode
# dmidecode 2.12
# No SMBIOS nor DMI entry point found, sorry.
No info by that means either.
This has all the tatoo's of "trust me,
does cat /proc/cpuinfo work?
On 04/08/2017 07:47 AM, Gene Heskett wrote:
> On Saturday 08 April 2017 03:56:48 Erik Christiansen wrote:
>
>> dmidecode | grep MHz
> pi@raspberrypi:~ $ sudo dmidecode | grep MHz
> pi@raspberrypi:~ $ sudo dmidecode
> # dmidecode 2.12
> # No SMBIOS nor DMI entry point f
On Saturday 08 April 2017 09:33:33 sam sokolik wrote:
> does cat /proc/cpuinfo work?
>
It doesn't answer the how fast is it now question Sam, only stating the
present bogomips as 38.something per core.
I have found a line in /boot/config.txt that seems to say its running at
700 MHz as default,
On the Rpi you can get the current speed of the cpu with the following
command: cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
But beware that the Rpi default uses the on-demand governor for cpu
clocking. This means when you overclock the Rpi and it is idle you get a
lower clock with th
Some place inside that encoder is a normal quadrature signal. Likely
right at the phototransistor.If you could find it and buffer it
then you have a conventional motor that is easy to interface.
I just got a few unknown motors myself and hade to figure of which
lead wire was which. It not ha
On 04/08/2017 12:05 AM, hubert wrote:
> I have a Servo that has an undocumented feedback encoder. I am
> interested in trying to decipher it. Is it feasible to run the servo
> without feedback connected, and put a digital storage scope on its
> outputs to capture the signal? It is an increm
On 04/08/2017 11:52 AM, Chris Albertson wrote:
> Some place inside that encoder is a normal quadrature signal. Likely
> right at the phototransistor.If you could find it and buffer it
> then you have a conventional motor that is easy to interface.
Well, in the case of the Fanuc serial encoders
On Saturday 08 April 2017 10:39:09 Fox Mulder wrote:
> On the Rpi you can get the current speed of the cpu with the following
> command: cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
>
And that says its running at 120, eg full speed for a 4 core.
> But beware that the Rpi default
On 04/08/2017 01:51 PM, Gene Heskett wrote:
> I need to go to tsc or somewhere, wallies maybe, and get
> me some of those 3 to 2 electrical adaptors as I just
> found my gigahertz sampler scopes 3rd wire ground pin is
> .2 ohms from a damned probe ground lead, so just hooking
> up a ground lead
On Saturday 08 April 2017 19:42:26 Jon Elson wrote:
> On 04/08/2017 01:51 PM, Gene Heskett wrote:
> > I need to go to tsc or somewhere, wallies maybe, and get
> > me some of those 3 to 2 electrical adaptors as I just
> > found my gigahertz sampler scopes 3rd wire ground pin is
> > .2 ohms from a d
On 04/08/2017 07:09 PM, Gene Heskett wrote:
> On Saturday 08 April 2017 19:42:26 Jon Elson wrote:
>
>> On 04/08/2017 01:51 PM, Gene Heskett wrote:
>>> I need to go to tsc or somewhere, wallies maybe, and get
>>> me some of those 3 to 2 electrical adaptors as I just
>>> found my gigahertz sampler sc
This is a HarmonicDrive FHA-40C-100-250E It has 4 wire encoder cable and
a 7 wire motor cable which includes power in and hall output. Some
models such as the 250US or 250D have quadrature output. Thanks for the
suggestions. The driver I have has various options for drive and
feedback, it ju
On Saturday 08 April 2017 23:57:30 Jon Elson wrote:
> On 04/08/2017 07:09 PM, Gene Heskett wrote:
> > On Saturday 08 April 2017 19:42:26 Jon Elson wrote:
> >> On 04/08/2017 01:51 PM, Gene Heskett wrote:
> >>> I need to go to tsc or somewhere, wallies maybe, and get
> >>> me some of those 3 to 2 el
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