Hi Uwe,
the bug for the default threshold is fixed in the Dslogic driver with
commit 86a1571 (api.c).
The problem is not the driver, but Pulsview can not take over this
condition.
Pulseview also queries values regarding -binding- in libsigrok:
sr: [253:34.373654] hwdriver: sr_config_get(): key 30041 (clock_edge)
sdi 0x10c02b0 cg NULL -> 'rising'
sr: [255:07.505557] hwdriver: sr_config_get(): key 30024
(external_clock) sdi 0x10c02b0 cg NULL -> false
sr: [263:33.507641] hwdriver: sr_config_get(): key 30023
(voltage_threshold) sdi 0x10c02b0 cg NULL ->
(1.3999999999999999, 1.39 99999999999999)
sr: [281:01.317140] hwdriver: sr_config_get(): key 30001 (captureratio)
sdi 0x10c02b0 cg NULL -> uint64 0
The value 1.4 is important here. So not just the OPT list of the
driver, whose values are converted into widget element, where my
problem lies. It is not possible for me to find a name for this element
in the source code, as it will automatically be embarrassed depending
on the ability of the driver.
Thus, I can not find a way as with the SAMPLERATE widget (which is
definitely defined) with the set command
auto gvar = device->device()->config_get(ConfigKey::SAMPLERATE);
uint64_t samplerate =
Glib::VariantBase::cast_dynamic<Glib::Variant<guint64>>(gvar).get();
assert(!updating_sample_rate_);
updating_sample_rate_ = true;
sample_rate_.set_value(samplerate);
the Threshold widget via software to the default or hardware driver
value (DSlogic has already downloaded this value).
The misconduct arises now, since the value of the threshold widget is
zero, this is again downloaded after RUN command on the HW.
Unfortunately, I can not get any further here because I have not found
a way to get at the Threshold widget.
Does anyone have a suggestion?
Who is currently working on Pulseview on the Device Config module
(deviceoptions.cpp / binding.cpp)?
Thank you.
Jörg
Am Sat, 10 Feb 2018 18:28:06 +0100
schrieb Uwe Hermann <[email protected]>:
> Hi,
>
> On Sun, Feb 04, 2018 at 07:08:59PM +0100, Jörg wrote:
> > the latest version of "pulseview" from the Git has the threshold
> > mark L <0V H> 0V for the device driver Dreamsourcelab-DSlogic.
> >
> > I have read that in the driver is 1.5V default.
> >
> > Is this default value not read out from the driver and set by PV?
>
> This is a known bug in the libsigrok driver, see
> https://sigrok.org/bugzilla/show_bug.cgi?id=1081
>
> Shouldn't be too hard to fix, patches welcome!
>
>
> Uwe.
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