FCDEV3B bring-up status

[Serg l]

I have enabled function names tracing by directly applying trace TC_FUNC
flag in InitializeTrace function. It seems to be not the right way of doing
this, but it made the rick.
Please see a side-by-side trace of two equal runs, one where I got
successful registration and the other when I was observing the issue.

​
 citrine.htm
<https://drive.google.com/a/tvman.org.ua/file/d/0B-LGWaryBRksVDFZbzZjOThHQXM/view?usp=drive_web>
​

On Sat, May 6, 2017 at 8:40 PM, Serg l <serg at tvman.us> wrote:

> Mychaela,
> Tried Magnetite hybrid and it worked without any problems with any SIM
> I have. Compilation time is really long. I didn't really profile
> anything, but I noticed that wine is trying to setup graphical
> environment to run every command. Have you considered wineconsole
> instead?
>
> I reviewed Citrine log from S/N1 and this is the difference
>
> not working:
> GPF trace id=A7 ts=00019420 PL->PCO tc=07 "HM cb_mmi_sat_cbch_req(),
> sat_enabled = 0, modus = 255"
>
>
> working:
> GPF trace id=A7 ts=00007F1B PL->PCO tc=07 "HM cb_mmi_sat_cbch_req(),
> sat_enabled = 1, modus = 255"
>
> I like Citrine flavor :) because it is built completely with GCC and
> it is really fast to recompile even from scratch.
>
> I was trying to figure out how do the trace flags work in Citrine, I'd
> like to find out how we end up in the function cb_mmi_sat_cbch_req()
> after enabling CFUN=1
>
> General tracing seems to be enabled, but I need more details not only
> errors. If you have any suggestions, I would really appreciate this.
>
> -Serg
>
> On 5/6/17, Mychaela Falconia <mychaela.falconia at gmail.com> wrote:
> > Hi Serg,
> >
> >> It worked once with different SIM card, but it is definitely not a
> >> hardware
> >> issue because Magnetite build works every time with the same SIM card.
> >> Maybe L1/DSP is configured a bit differently and if my calibration
> values
> >> are a bit off, Citrine may not be able to detect carriers.
> >
> > I don't see how the quality of calibration could be the cause of the
> > problem you are having with Citrine, as your log shows that the fw
> > does not even attempt to connect to a cell, i.e., the upper layers of
> > the G23M protocol stack are not commanding L1 to make a network sync
> > attempt.  And because L1 is not being commanded to do the operation in
> > question, I don't see how it could be an L1 or DSP problem either -
> > instead it must be some glitch higher up in the protocol stack code.
> >
> > The G23M PS used in Citrine is not too polished, i.e., it may still
> > have bugs that need to be shaken out, and the issue you are having
> > looks like one of them.  However, my preferred approach to debugging
> > these G23M PS problems is to debug them first in the TCS2/TCS3 hybrid
> > config of Magnetite (see doc/Modem-configs in the fc-magnetite source
> > tree), and then port to Citrine if there is commercial demand for the
> > latter.
> >
> > Thus you might want to try building Magnetite in the hybrid config
> > (different from the l1reconst config I currently use and recommend for
> > production use), and see if the SIM that's giving you trouble in
> > Citrine works in Magnetite TCS2/TCS3 hybrid or not - this experiment
> > would narrow the search for the bug.
> >
> > M~
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> >
>