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Nov 5 2017

Bertl added a comment to T292: Investigate SDHC UHS-II interface.

Do you have any documentation about the UHS-III physical layer?

Nov 5 2017, 3:34 PM · AXIOM Beta Hardware

Oct 28 2017

Bertl added a comment to T736: Battery System.

Note that we are using Eagle 7.7.0 which is basically the last offline/old-license version before Autodesk took over.
Also note that our long term plan includes switching to KiCad which has made great progress since it gets the CERN treatment.

Oct 28 2017, 10:59 PM · AXIOM Beta Hardware

Jul 18 2017

Bertl added a comment to T801: Brochure: Page TBD - Schematics.

27.9g for the footplate and 47.9g for the mountbase/skeleton.

Jul 18 2017, 11:00 PM · Web Content & Documentation

May 23 2017

Bertl added a comment to T773: Output of 4K raw.

Is it possible to record in Uncompressed 4K 4:3 CinemaDNG internally?
Yes, but only for a short period, till the memory is full.

May 23 2017, 10:49 PM · AXIOM Beta Hardware

Apr 30 2017

Bertl removed projects from T778: Monthly meetup in Vienna: YES! - but what day?: AXIOM Beta Software, AXIOM Beta Hardware, Google Summer of Code 2022.
Apr 30 2017, 1:27 PM · Brainstorming, Community

Apr 2 2017

Bertl added a comment to T244: image pipeline: highlight recovery.

So, let's look into two example cases:

Apr 2 2017, 4:43 PM · AXIOM Beta Software
Bertl added a comment to T222: Low Resolution Real-time Preview Video Stream - FPGA feature.

Sounds nice and should be doable on the MicroZed.
It might be worth using decimation and keeping the framerate to avoid extensive buffering.
The obvious drawback is that connectivity via ethernet is lost.

Apr 2 2017, 1:42 PM · AXIOM Beta Software
Bertl added a comment to T244: image pipeline: highlight recovery.

Still doesn't make any sense to me, as there never is any missing data for any channel.

Apr 2 2017, 1:21 PM · AXIOM Beta Software
Bertl added a comment to T687: exposure time calculation error.

Was this further investigated since?

Apr 2 2017, 1:05 PM · AXIOM Beta Software
Bertl added a comment to T715: CMV12000 datasheet V2.8 register change suggestion.

Very likely, but I guess we have to simply test this on a real system.

Apr 2 2017, 1:03 PM · AXIOM Beta Software

Mar 29 2017

Bertl added a comment to T734: Live histogram, waveform, vectorscope.

@mash: while that is a good idea for cutting/post software, this is not an option for the AXIOM Beta as there is no GPU to accelerate anything.

Mar 29 2017, 2:49 PM · Restricted Project
Bertl added a comment to T725: Electronic Lens Control .

It is unlikely that the lens system manufacturers will disclose the information about their lenses, but of course, it is worth a try contacting and asking them.

Mar 29 2017, 2:45 PM · AXIOM Beta Hardware, AXIOM Beta Software

Mar 24 2017

Bertl added a comment to T731: Bidirectional Protocol for FPGA communication.

The implementation has to be done on both FPGAs (Xilinx ZYNQ and Lattice MachXO2).
As this is a FOSS/OH project, you have to limit the design to IP without restrictions on both sides.
Using platform specific primitives like DDR I/O, SerDes or FIFOs is not as problem, as long as they are variants to a generic entity (which can be adapted to a new platform with little to none effort).

Mar 24 2017, 3:53 AM · AXIOM Beta Hardware, AXIOM Beta Software

Mar 23 2017

Bertl added a comment to T728: Image Sensor Simulation/Emulation.

@kkvasan92: AXI is not required/desired for simulation/emulation.

Mar 23 2017, 9:21 AM · AXIOM Beta Software
Bertl added a comment to T721: 4K HDMI output Gearwork Logic.

@anil: With Link Training we refer to training the LVDS connection required for the Gearwork.

Mar 23 2017, 9:19 AM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl updated subscribers of T721: 4K HDMI output Gearwork Logic.
Mar 23 2017, 9:14 AM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl updated subscribers of T724: Functional emulation of the AXIOM Beta hardware in QEMU.
Mar 23 2017, 9:13 AM · AXIOM Beta Software
Bertl updated subscribers of T725: Electronic Lens Control .
Mar 23 2017, 9:12 AM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl added a comment to T734: Live histogram, waveform, vectorscope.

Yes, we have IRC, it is on #apertus @ irc.freenode.
Just join there and ask if you need anything.

Mar 23 2017, 9:12 AM · Restricted Project
Bertl updated subscribers of T734: Live histogram, waveform, vectorscope.
Mar 23 2017, 9:10 AM · Restricted Project
Bertl added a comment to T733: FPGA real time Focus Peaking.

@sagnikbasu: Sorry for the delay, I obviously missed your questions.

Mar 23 2017, 1:29 AM · AXIOM Beta Software, Google Summer of Code 2022

Mar 16 2017

Bertl added a comment to M5: PCB Test.

Forgot to say, the fingers look great!!!!

Mar 16 2017, 12:48 AM
Bertl added a comment to M5: PCB Test.

It looks to me like the CI palette features a number of similar pastel colours, so that would work without changing the colour tone on the boards too much. E.g. secondary set, third colour (the red) and ternary set, the last two colours should be almost perfect for the MicroZed and OSHpark boards. The plugins could use the green from the secondary or ternary set, whatever looks better.

Mar 16 2017, 12:48 AM

Mar 15 2017

Bertl added a comment to M5: PCB Test.

Hands? What hands?

Mar 15 2017, 8:36 PM

Mar 12 2017

Bertl added a comment to T731: Bidirectional Protocol for FPGA communication.

Bi-directional communication between ZYNQ and MachXO2 over a single LVDS pair (half duplex) in one case and over two LVDS pairs (full-duplex) in the other case.
Note that there is also a single ended clock line which can (and probably should :) be used for synchronization.

Mar 12 2017, 8:17 PM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl added a comment to T728: Image Sensor Simulation/Emulation.

I don't think that this needs to be Vendor specific in any way.
I.e. you can use the Xilinx Vivado toolchain or any other (Altera Quartus, Lattice Diamond, ...) for testing and simulation, but the resulting HDL should be vendor independent.

Mar 12 2017, 7:39 PM · AXIOM Beta Software

Mar 3 2017

Bertl added a comment to T697: create firmware image creation script.

Here a few quick comments far from being complete:

Mar 3 2017, 2:00 AM · AXIOM Beta Software

Mar 2 2017

Bertl added a comment to M5: PCB Test.

Ah, I just realized that the shields have more holes (4) than in reality (2) which needs to be corrected.

Mar 2 2017, 3:46 AM
Bertl added a comment to M5: PCB Test.

Yes, the grey version looks really nice, so if the color version had the same lightness (or maybe a tad bit brighter) it would be almost perfect :)
Still missing the labels for each part, but I guess that will be added later as a separate layer?

Mar 2 2017, 3:43 AM

Mar 1 2017

Bertl updated subscribers of T741: AXIOM Beta/Gamma/Remote logo design.
Mar 1 2017, 12:21 AM

Feb 23 2017

Bertl added a comment to M5: PCB Test.

I liked the strong perspective of the PCB-Stack-Concept-V03-022 and the colorized black ink style very much.
This one looks to much like a preview rendering for a photorealistic model.

Feb 23 2017, 11:02 PM

Feb 9 2017

Bertl updated the task description for T729: Linux Kernel driver for Lattice MachXO2 programming/debugging.
Feb 9 2017, 5:25 PM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl updated the task description for T730: Linux Kernel driver for AXIOM Beta debug interface.
Feb 9 2017, 5:24 PM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl updated the task description for T720: Management of image sensor calibration files.
Feb 9 2017, 5:24 PM · AXIOM Beta Software
Bertl updated the task description for T728: Image Sensor Simulation/Emulation.
Feb 9 2017, 5:23 PM · AXIOM Beta Software
Bertl updated the task description for T721: 4K HDMI output Gearwork Logic.
Feb 9 2017, 5:23 PM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl updated the task description for T731: Bidirectional Protocol for FPGA communication.
Feb 9 2017, 5:23 PM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl updated the task description for T732: PWM FAN control for the AXIOM Beta.
Feb 9 2017, 5:22 PM
Bertl updated the task description for T733: FPGA real time Focus Peaking.
Feb 9 2017, 5:22 PM · AXIOM Beta Software, Google Summer of Code 2022
Bertl updated the task description for T735: Smart Switching Regulator.
Feb 9 2017, 5:20 PM
Bertl updated the task description for T723: AXIOM Beta REST Interface.
Feb 9 2017, 5:19 PM · AXIOM Beta Software
Bertl updated the task description for T724: Functional emulation of the AXIOM Beta hardware in QEMU.
Feb 9 2017, 5:17 PM · AXIOM Beta Software
Bertl updated the task description for T725: Electronic Lens Control .
Feb 9 2017, 5:16 PM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl updated the task description for T734: Live histogram, waveform, vectorscope.
Feb 9 2017, 5:15 PM · Restricted Project
Bertl updated the task description for T733: FPGA real time Focus Peaking.
Feb 9 2017, 4:54 PM · AXIOM Beta Software, Google Summer of Code 2022
Bertl created T735: Smart Switching Regulator.
Feb 9 2017, 4:52 PM
Bertl renamed T721: 4K HDMI output Gearwork Logic from 4K HDMI output VHDL Logic / IP Core to 4K HDMI output HDL Gearwork Logic / IP Core.
Feb 9 2017, 4:43 PM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl created T732: PWM FAN control for the AXIOM Beta.
Feb 9 2017, 4:26 PM
Bertl created T731: Bidirectional Protocol for FPGA communication.
Feb 9 2017, 4:07 PM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl moved T728: Image Sensor Simulation/Emulation from Image Sensor Related to FPGA / HDL on the Google Summer of Code 2022 board.
Feb 9 2017, 3:37 PM · AXIOM Beta Software
Bertl created T730: Linux Kernel driver for AXIOM Beta debug interface.
Feb 9 2017, 3:28 PM · AXIOM Beta Hardware, AXIOM Beta Software

Feb 8 2017

Bertl updated the task description for T724: Functional emulation of the AXIOM Beta hardware in QEMU.
Feb 8 2017, 11:19 PM · AXIOM Beta Software
Bertl created T729: Linux Kernel driver for Lattice MachXO2 programming/debugging.
Feb 8 2017, 11:16 PM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl moved T728: Image Sensor Simulation/Emulation from Misc to Image Sensor Related on the Google Summer of Code 2022 board.
Feb 8 2017, 11:06 PM · AXIOM Beta Software
Bertl updated the task description for T728: Image Sensor Simulation/Emulation.
Feb 8 2017, 11:05 PM · AXIOM Beta Software
Bertl created T728: Image Sensor Simulation/Emulation.
Feb 8 2017, 11:00 PM · AXIOM Beta Software
Bertl renamed T725: Electronic Lens Control from electronic photography lens control to Electronic Photography Lens Control .
Feb 8 2017, 10:55 PM · AXIOM Beta Hardware, AXIOM Beta Software
Bertl updated the task description for T724: Functional emulation of the AXIOM Beta hardware in QEMU.
Feb 8 2017, 10:46 PM · AXIOM Beta Software
Bertl renamed T724: Functional emulation of the AXIOM Beta hardware in QEMU from Emulation of the AXIOM Beta hardware in QEMU to Functional emulation of the AXIOM Beta hardware in QEMU.
Feb 8 2017, 10:43 PM · AXIOM Beta Software
Bertl updated the task description for T724: Functional emulation of the AXIOM Beta hardware in QEMU.
Feb 8 2017, 10:35 PM · AXIOM Beta Software
Bertl updated the task description for T724: Functional emulation of the AXIOM Beta hardware in QEMU.
Feb 8 2017, 10:34 PM · AXIOM Beta Software

Dec 8 2016

Bertl added a comment to T59: Part Hunter.

It is still relevant, although it has somewhat progressed.

Dec 8 2016, 1:25 PM · Community
Bertl added a comment to T260: Establish and announce weekly meetings.

Sebastian and I are on IRC most of the time and we use it a lot in general, so I don't think a weekly IRC meeting would be a problem.
Still leaves the question of agenda and summary and probably finding good dates as well.
Also it will be additional work for somebody to organize and coordinate.

Dec 8 2016, 1:22 PM · Community

Oct 27 2016

Bertl added a comment to T212: Accelerometer recorded to metadata for stabilizing / tracking in post..

Why not. After all, the IMU is currently 'solder-on' so we can try different ones without changing the entire design.
With a little trick (connecting the solder-on boards with small pins) they can also be easily swapped.
All that is required is a tiny PCB with the proper connections.

Oct 27 2016, 9:45 PM · AXIOM Beta Software, AXIOM Beta Hardware
Bertl added a comment to T212: Accelerometer recorded to metadata for stabilizing / tracking in post..

Other candidates are:

Oct 27 2016, 3:53 PM · AXIOM Beta Software, AXIOM Beta Hardware

Oct 9 2016

Bertl added a comment to T675: 8K Camera for AXIOM Delta.

Why stop there, why not 16K 600FPS ... :)

Oct 9 2016, 2:56 PM · Brainstorming
Bertl added a comment to T674: Thunderbolt port.

Do you have any open source stacks/designs for handling thunderbolt?
If so, please share with us.

Oct 9 2016, 2:54 PM · AXIOM Beta Hardware
Bertl added a comment to T292: Investigate SDHC UHS-II interface.

The problem is simple:

  • we have 12 LVDS lanes with up the 1.5Gbit of encoded data (officially 1.0Gbit per lane).
  • SATA requires 3+ Gbit to be useful, i.e. we would need MGTs to handle that.
  • UHS-II can be done with a cheap FPGA
Oct 9 2016, 2:51 PM · AXIOM Beta Hardware
Bertl added a comment to T213: An entry level low price version of the Axiom.

Didn't know that BM decided to make the PCC FOSS/OH ...

Oct 9 2016, 2:46 PM · AXIOM Beta Hardware
Bertl added a comment to T212: Accelerometer recorded to metadata for stabilizing / tracking in post..

We need to record metadata anyway, for example to keep information about exposure time, sensor register settings, etc.
If we decide to do it in a separate file/stream then we need very precise timestamps (or frame numbers) to go with.

Oct 9 2016, 2:43 PM · AXIOM Beta Software, AXIOM Beta Hardware
Bertl added a comment to T136: 4K RAW PC recording.

Sounds nice! Do you happen to have a FOSS/OH solution for PCI-E 3.0 and M.2?

Oct 9 2016, 2:41 PM · 4k Raw recorder, Brainstorming

Sep 9 2016

Bertl added a comment to T669: Consider using fair components when possible.

Note that fairphone does not limit itself to "fair" components.

Sep 9 2016, 5:45 PM · Brainstorming

May 22 2016

Bertl added a comment to T187: Implement a system to update the various firmwares easily and safely.

All our plugin modules have an EEPROM on the I2C bus.
Recent Power Boards feature en EEPROM on the I2C bus as well.
The Main Board can be uniquely identified via PICs and MachXO2s.

May 22 2016, 10:40 AM · AXIOM Beta Hardware
Bertl added a comment to T430: KiCad conversion (automated?).

The fact that the task is sitting there for a year now means that probably nobody is interested enough to work on it.
As you are very interested, maybe you could start working on the conversion.

May 22 2016, 10:30 AM · AXIOM Beta Hardware
Bertl added a comment to T292: Investigate SDHC UHS-II interface.

We now think we know how UHS-II works and where the challenges are.
No hardware tests have been concluded so far because we still need to write software to utilize UHS-II.

May 22 2016, 10:26 AM · AXIOM Beta Hardware

May 21 2016

Bertl added a comment to T212: Accelerometer recorded to metadata for stabilizing / tracking in post..

Actually (nitpicking here :) the IMU doesn't record the motion, it tracks it with several sensors.

May 21 2016, 7:27 PM · AXIOM Beta Software, AXIOM Beta Hardware

May 15 2016

Bertl added a comment to T655: 1x HDMI boards testing before we order 100+ .

http://forum.arduino.cc/index.php?topic=22327.15

May 15 2016, 7:56 PM · AXIOM Beta Hardware
Bertl added a comment to T655: 1x HDMI boards testing before we order 100+ .

Specifically test/enable CEC and HPD as well as DDC

May 15 2016, 5:45 PM · AXIOM Beta Hardware

May 13 2016

Bertl added a comment to T212: Accelerometer recorded to metadata for stabilizing / tracking in post..

While it certainly works well in post processing, this probably isn't a good idea for real-time stabilization in the AXIOM Beta.

May 13 2016, 9:22 PM · AXIOM Beta Software, AXIOM Beta Hardware
Bertl added a comment to T652: micro SD-card raid.

Personally I have no problem with that.

May 13 2016, 9:06 PM · 4k Raw recorder

Mar 15 2016

Bertl added a comment to T637: add EEVblog videos to "why open source" page?.

Dave Jones is an iconic figure.
You might not know him, and he is certainly not always right, but he is one of those internet phenomenons.
If we can find something better on the topic, it would be very welcome, if not, it is probably a lot better than nothing.

Mar 15 2016, 2:18 PM · Web Content & Documentation

Mar 12 2016

Bertl added a comment to T644: PCB 3D Web Viewer.

Currently we have Eagle design files (switching to KiCAD is still on the roadmap), so we need to have some kind of auto conversion for now if we want to utilize KiCAD for the 3D export.

Mar 12 2016, 4:31 PM · Web Content & Documentation

Feb 4 2016

Bertl closed T56: Evaluate altera max 10 as an option for sensor interfacing as Resolved.

Altera MAX 10 doesn't seem to be a good option as far as we checked.

Feb 4 2016, 3:37 PM · AXIOM Beta Hardware

Oct 29 2015

Bertl added a comment to T200: Remote Control Display Size.

For any LCD/LED/eInk display that we want to consider, please first make sure that a datasheet is available and link it here, so that we can do some basic technical plausibility checks ...

Oct 29 2015, 5:20 PM · AXIOM Remote

Oct 17 2015

Bertl added a comment to T601: Injection molded heat sinks.

Sounds great, looking forward to it in anticipation!

Oct 17 2015, 1:48 AM · Beta Board (Electronics), AXIOM Beta Hardware

Oct 15 2015

Bertl added a comment to T598: mediawiki bootstrap skin?.

Well, personally I prefer a full width adaptive layout anytime over a fixed width layout.

Oct 15 2015, 12:28 PM · Web Content & Documentation

Oct 14 2015

Bertl added a comment to T597: create build environment container.

we also want sdcc and gputils (latest version) for pic related code and general tools like vim, gcc, python, etc for various tasks.

Oct 14 2015, 11:21 AM · AXIOM Beta Software

Sep 28 2015

Bertl added a comment to T419: Coating options.

But we definitely need a different video to show the process (if we want to) because it is ill advised to promote weapons in public :)

Sep 28 2015, 7:48 PM · AXIOM Beta Hardware

Sep 21 2015

Bertl added a comment to T56: Evaluate altera max 10 as an option for sensor interfacing.

Yes, interface board with FPGA is still on the roadmap :)

Sep 21 2015, 12:20 AM · AXIOM Beta Hardware
Bertl reassigned T200: Remote Control Display Size from Bertl to sebastian.

if we want to go for an eInk/ePaper dispay, we need to get a sample for testing.

Sep 21 2015, 12:19 AM · AXIOM Remote
Bertl reassigned T311: create HDMI module holder to 3d print from Bertl to sebastian.

HDMI Module and outline has been fixed (for the 1x HDMI module).

Sep 21 2015, 12:09 AM · AXIOM Beta Hardware

Aug 31 2015

Bertl added a comment to T522: find methods how can we automatically generate components assembly drawings for manual pick and place.

Was mit einigem Aufwand moeglich waere ist eine Bounding Box um tPlace, bPlace zu legen (oder alternativ um die pads).

Aug 31 2015, 12:12 PM · AXIOM Beta Hardware
Bertl added a comment to T522: find methods how can we automatically generate components assembly drawings for manual pick and place.

Unwahrscheinlich, da Komponenten quasi beliebige Gestalt haben koennen.

Aug 31 2015, 12:08 PM · AXIOM Beta Hardware
Bertl added a comment to T292: Investigate SDHC UHS-II interface.

AFAIK, CFast is basically SATA, so something different :)

Aug 31 2015, 2:29 AM · AXIOM Beta Hardware

Aug 11 2015

Bertl added a comment to T539: create milestone/status overview page of Beta development.

I'd suggest to use at least five states (not started, started, good progress, almost finished and finished), otherwise most tasks will hang in the "in progress" state for a long time. Note that the "moon phase" concept and the color coding could be used as well.

Aug 11 2015, 10:12 PM · Web Content & Documentation

Jul 11 2015

Bertl reassigned T431: Decide on CMV12000 socket solution from Bertl to sebastian.

@sebastian: please check with Andon if they would do a two-part version (no connection between top and bottom block) - like the one we are investigating from Selwyn - and if, at what cost.

Jul 11 2015, 8:01 AM · AXIOM Beta Hardware
Bertl added a comment to T500: central file repository -> where? how?.

While it sounds appealing, I don't think we can have this one central place because there are a number of very different requirements to different types of data.

Jul 11 2015, 7:44 AM · Community

Jun 26 2015

Bertl added a comment to T489: replace block diagram in latest article PNG with SVG.

Well, it hangs out of the page right now ...

Jun 26 2015, 11:54 PM · Web Content & Documentation

Jun 8 2015

Bertl added a comment to T136: 4K RAW PC recording.

As sebastian explained, UHS-II is electrically different from "normal" SD, so the only way to make this work is through special hardware.

Jun 8 2015, 3:56 AM · 4k Raw recorder, Brainstorming

May 13 2015

Bertl added a comment to T421: establishing a naming scheme for Beta assembly revisions.

What about simple roman numerals?
If there is a need to denote different parts/variants, add a letter, e.g.

May 13 2015, 12:58 PM · AXIOM Beta Hardware