Parallella Community

Greetings,

Today I pushed up a significant reorganization of the parallella-hw repository:
https://github.com/parallella/parallella-hw

This includes:
- The board schematic & pcb design files, pdfs, and Gerbers, including archives of the older boards
- The Verilog and EDK source code for the non-HDMI (a/k/a "Headless") fpga build
- PlanAhead / ISE projects for the Parallella-I board with E16 and 7020 and 7010
- Project for the E64 and 7020

See the README file at the top level for more information, plus the READMEs in the project directories.

Please note that only the E16+7020 version has been tested, though the 7010 version is essentially identical.
We are about to test the E64 version, which differs "only" in the polarity of all the IOs.

Next step is to add the HDMI-enabled versions, and I have a lot of plans beyond that.

-Fred

Yes it is, we'll provide people the ability to build the bitstream that is part of the standard ROOT release. The HDMI module comes from a public Analog Devices repository:
https://github.com/analogdevicesinc/fpgahdl_xilinx
I won't copy that repository directly, rather I'll refer to it as a submodule, I think.

"Plans beyond that" includes general clean-up and reorganization of the code base and moving it to Vivado, but everything in the parallella-hw repo will be open-source.

- Fred

And for any who may be interested, here is a comparison of the resource usage for the various versions:

Thank you Fred,
I've tried parallella_e16_hdmi_gpiose_7020.bit.bin, it seems to work fine on my Parallella.

OK, I see I've caused some pain because changing between headless/hdmi versions requires a corresponding change to the devicetree, but we haven't published a suitable headless devicetree. My apologies to those who tried to use the headless configurations and had their system stall waiting for "vgaarb," after "bio: create slab <bio-0> at 0" if you are lucky enough to have serial port access. Or just sit there helplessly if you don't have serial access.

Attached are the devicetrees I use currently for both headless and hdmi versions. The sources are included too. To use them, select the one you want (the binary "dtb"), rename it "devicetree.dtb," and put it in the BOOT partition on the SDCARD. Reboot and there you go!

I expect there is no problem using the headless devicetree with the hdmi-enabled FPGA configuration, though obviously the HDMI will not come up, but I have not tried it.

-Fred

Are there any plans to support HDMI audio with your new bitstream?