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Xilinx Virtex 7 FPGA bitstream has been reverse engineered (github.com)
14 points by rwmj 10 months ago | hide | past | web | favorite | 1 comment

For some context this is a very popular and cheap series of FPGA devices. For example you can buy the Arty board which has one of these FPGAs for $99 (https://store.digilentinc.com/arty-a7-artix-7-fpga-developme...), or the slightly more advanced Nexys 4 DDR for $265 (https://store.digilentinc.com/nexys-4-ddr-artix-7-fpga-train...).

Currently you must use the Xilinx Vivado tool which is a 40 GB download [no, that isn't a typo], requires a paid license to unlock the full features, and is generally awful to use.

This work should eventually lead to a complete open source toolchain to program these devices, just like Project IceStore for the Lattice devices (http://www.clifford.at/icestorm/ https://rwmj.wordpress.com/2018/03/17/playing-with-picorv32-...)

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