Hi Kevin and others,
I've just ordered 4 prototype PCBs as well as components for at least 10
units. I'll keep you posted about the progress. We should have them in
less than two weeks.
Regards,
Harald
--
- Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
Hi,
The BOM (bill of material) is ready.
I finished the netlist, footprint drawing, and footprint selection.
all available at : https://gsm.tsaitgaist.info/SIMtrace/v0.9+/
next task : place the components on the board (i'll try smart card size)
and route the lines.
Kevin
Hi,
softSIM is out : http://bb.osmocom.org/trac/wiki/softSIM
It's not fully implemented but already working (I hope).
The osmocomBB use/cooperation will come out soon.
Other tools are coming next week (I need to clean them).
Have fun,
tsaitgaist
Hi all!
As some of you already know, Holger and I have recently started a new
company called "sysmocom - systems for mobile communications GmbH".
The process of establishing the new company has now formally concluded.
Before some rumours start to spread, we would like to clarify some
points and make sure there is mutual understanding between the Osmocom
community and the sysmocom company.
sysmocom is intended to provide commercial offerings related to the
Osmocom projects. This is not entirely new. Especially on the network
side, people like Holger and I have been doing quite a lot of paid
development to bring those projects forward. We would not have many of
the features we have today, if it wasn't for customers who actually pay
us for development of OpenBSC, OsmoBSC, OsmoSGSN and the various side
projects more targetted at a real network operator like cellmgr-ng,
bsc-nat, gb_proxy - just to name a few.
However, this has always only been freelancing development of Software.
With sysmocom, we want to go one step further and work on hardware
products related to the various Free Software projects. Right now I
don't want to talk too much about unfinished products, but we are
working towards an inexpensive BTS product, we are funding the
prototypes for Osmocom SIMtrace, and we will likely also see stuff like
OpenBSC appliances.
Given our past involvement and exposure into other projects that share
a split Free Software / business set-up, we think we understand very
well where potential issues of conflict between the two sides may be.
Let me make some more clarification what this is not about:
* sysmocom is not about creating proprietary derivates of Osmocom
software. We work on Free Software which is publicly available under
OSI approved and FSF endorsed licenses. We may offer proprietary
hardware and sometimes software - but those are independent projects
from existing Osmocom software.
* we specifically will not have a public and a non-public version of
the same program with differences in features.
* sysmocom is not a VC-funded startup. It's a very small company
run out of personal funds with no intention to take external funding
or grow rapidly. Nobody but Holger and I determine where it goes
and what it does.
* sysmocom does not hold any copyright on the Free Software projects.
The copyrights stay distributed with the major authors such as Holger,
Onwaves, Sylvain, Dieter, Andreas and myself. None of the others have
any affiliation with sysmocom. I have (personally, unrelated to
sysmocom) asked some of the smaller contributors for a copyright
transfer to make sure we could do the AGPLv3 transition, or future
re-licensing decisions without having to ask dozens and dozens of
people. sysmocom does not seek to control the Free Software projects.
* we will maintain a strict separation between the community side of
things and the business side. Unlike some other popular projects, we
will not end up in a situation where the osmocom.org websites will be
full of advertisements and hidden links that lure you on the company
website.
* we will keep a strict separation of naming. Osmocom is for the FOSS
projects, sysmocom for the business. The company will use the term
"Osmocom" only in descriptive context, not as a product name, brand
or for advertisement.
If you do have any concerns, please feel free to share them. However,
I'd like to avoid cross-posting them throguh different mailing lists.
Please follow-up-to openbsc(a)lists.osmocom.org
Regards,
Harald
--
- Harald Welte <hwelte(a)sysmocom.de> http://www.sysmocom.de/
=======================================================================
* sysmocom - systems for mobile communications GmbH
* Schivelbeiner Str. 5
* 10439 Berlin, Germany
* Sitz / Registered office: Berlin, HRB 134158 B
* Geschaeftsfuehrer / Managing Directors: Holger Freyther, Harald Welte
Hi all!
The kicad project for the simtrace hardware that Kevin has been working
on is now available as part of the simtrace.git repository on
git.osmocom.org.
This will allow us to document the revision history of any modifications
to the hardware in the commit messages, and it allows us to see
differences between individual versions.
Regards,
Harald
--
- Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
hi,
here v0.8 : https://gsm.tsaitgaist.info/SIMtrace/v0.8/
Compared to v0.7+, I added 2 1n4148 after the parallel voltage regulator
outputs.
I wanted to avoid the regulators to fuzz each other, but I don't know if
it's right. Maybe an additional zener diode is also required.
Now I'm looking for the parts and footprints.
Kevin
Hi
The corrections have been applied. I hope I did not forget anything.
The main changes :
- reset is a jumper
- bootloader switch added
- 100k resistors used (instead of 4.7k, I hope it does not break anything)
- jack connector added (for the debug)
- WP from flash connected
- USB voltage regulator TPS73633 used (lower capacitance)
- USB buffer used instead of the openPCB solution (thus no pull-up and
reset connection). saves space and complexity
- pin renamed
- QS3244 instead of QS3245 used, I/O and other pins are controlled
separately
- ...
To make the changes I used the AT91SAM7X-EK Evaluation Board User Guide.
The overall capacitance is reduced, but I think the 22uF for the battery
should be kept.
files : https://gsm.tsaitgaist.info/SIMtrace/v0.7/
good luck,
Kevin
Hi,
I never tried WSON, but I think it's still possible to solder it.
To do it (as most of the smd), I use a heating plate and a hot air gun
(with soldering paste), and not a soldering iron. So it might also work
with this package.
But the SOIC package is easier for others. Even it's it two time the
price, it's not too expensive.
So you can choose any.
Kevin
On 06.05.2011 11:34, Harald Welte wrote:
> Hi!
>
> I think one of the big concerns is to use components that can still be
> soldered manually (like SOIC-8). All the larger-than-32MBit (4MByte)
> SPI flashes that I could find were in smaller cases with no leads
> extending from the case (like WSON).
>
> This one looks fine to me, and is available from digikey:
> http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=SST25VF032…
> datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/S71327_04.pdf
>
> Regards,
> Harald
>
