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pluto_hdl_adi/projects/common/xilinx/compression_system_constr.xdc

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Enable bitstream compression for Xilinx projects Enabling bitstream compression reduces the size of the generated bitstream. This means on one hand it will consume less storage, which is especially useful for the BOOT partition of the ADI images where we store BOOT.BIN files for all supported platforms. On the other hand a smaller bitstream is faster to load from the storage medium and it is also faster to program to the FPGA. So it reduces the overall boot time as well. The only downside of bitstream compression is that the bitstream size is no longer constant, but depends on the actual design and resource utilization. This will not work with bootloaders that expect a fixed size. When building a bitstream using the tcl scripts bitstream compression can be disabled by setting the ADI_NO_BITSTREAM_COMPRESSION environment variable. Initial tests show a reduction of a round 50% in size for most ADI projects. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2016-07-13 16:46:34 +00:00
set_property BITSTREAM.GENERAL.COMPRESS TRUE [current_design]