Open Hardware Repository

The ADC board is extensively being tested. The harmonics problem seen was actually caused by the signal generator used. The I2C bus is tested and accessing the EEPROM memory, setting the sampling frequency and making temperature measurements are now possible. There appeared an issue with linearity in the 30-90 kHz region caused by offset compensation circuit. This issue, which is repeatable by simulation, is under investigation.

The third schematics review of the Simple PCI Express FMC carrier has been held. Some improvements and simplifications of the schematics are required, after which the PCB layout can be started.

See http://lists.ohwr.org/sympa/arc/nanofip-test-board/2010-08/msg00000.html

We'll be performing upgrade tasks on the ohwr.org site.

The maintenance work will start around 8:30 am CEST and the site will be down for 30 minutes (approximately).

We'll be updating ohwr.org for allowing Git repositories.

The maintenance work will start around 8:30 am CEST and the site will be down for 30 minutes (approximately).

We'll be performing upgrade tasks on the ohwr site tomorrow morning.

The maintenance work will start around 8:30 am CET. The site will be down for 1 hour. (This figure is approximate, given the complexity of the upgrade)

Since mid July we have one board plugged in on Xilinx development kit and powered. Two channels are working as limited by Xilinx development kit clock connections (we'll change our FMC connections on a V2 to cope with this). Some changes are needed to solve thermal problems. The ENOB & SNR are measured: >11 bits in all ranges. However, there seem to be still a problem with the harmonic distortion that is with -60dB somewhat higher than expected.

The test board and the software has been validated. It is now ready to accept the first version of the NanoFIP code to start testing the WorldFIP functionality.

The Open Source Hardware Draft v0.3 is out.

This license was produced by the holders of the Open Source Hardware Summit.

The estimated date for the release of v1.0 is September the 24th 2010.

The number of Open-hardware companies is increasing, and they altogether are already worth millions .

The schematics is now ready for review.
Check the schematics review page [[SchReview|Schematics review]].