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README

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codebot committed Jan 9, 2020
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@@ -9,18 +9,19 @@ the art open hardware with open firmware and software. There are a few revs:
* ovc0: three Python1300 imagers, an Artix-7 FPGA, DRAM, and USB3 via a Cypress FX3 controller.
* ovc1: two Python1300 imagers, a Jetson TX2 (6x ARMv8, GPU, etc.) connected to a Cyclone-V GT FPGA over PCIe.
* [ovc2](doc/ovc2a/README.md): two Python1300 imagers, a Jetson TX2 (6x ARMv8, GPU, etc.) connected to a Cyclone 10 GX FPGA over PCIe Gen 2.0 x4
* ovc3: three ON Semi AR0144CS imagers, USB Type-C peripheral, Trenz TE0820 module with Xilinx Zynq UltraScale+, RAM, flash, etc (current work).
* ovc3: three ON Semi AR0144CS imagers, USB Type-C peripheral, Trenz TE0820 module with Xilinx Zynq UltraScale+, RAM, flash, etc (current work). Up to four optional external camera boards, each of which add a pair of AR0144CS imagers.

# where do I find hardware stuff

* ovc1 hardware currently lives in 'hardware/ovc1' as a single KiCAD PCB.
* schematics are provided as [PDF](https://github.com/osrf/ovc/raw/master/hardware/ovc1/ovc.pdf) or native KiCAD files
* ovc2 hardware lives in 'hardware/ovc2'
* ovc3 hardware lives in 'hardware/ovc3' with version suffixes
* ovc3a external stereo camera board fabrication archive [ZIP](https://github.com/osrf/ovc/raw/master/hardware/ovc3a/external_camera/fab_rev_a.zip)

# where do I find other stuff

* Firmware and software for ovc1 and ovc2 are in the 'firmware' and 'software'
* Firmware and software are in the 'firmware' and 'software'
directories in this repo.

# how do I update everything
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# Lens holders
Lens holders have 20mm spacing. There are various options that work fine.
We have used PT-LH010M from m12lenses.com with good results:
https://www.m12lenses.com/CNC-Machined-M12-Lens-Holder-Metal-p/pt-lh010m.htm

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