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- Vivado is used with -fsm_extraction one_hot. Starting with Vivado 2016.3 this triggers fsm recognition and re-coding of two gray counter modules. This not only defeats the purpose of the gray coded counter, it also caused some constraints to fail. Added attributes to prevent fsm extraction - the logic of `connect_hw_server` and `get_hw_servers` changed after Vivado 2015.1. The `make <design>.vconfig` command worked up to Vivado 2016.2 due to some recovery mechanism, and finally broke with 2016.3. Fixed the call to `get_hw_servers`.
This directory sub-tree contains a wide range of support modules and is organized in
| Directory | Content |
|---|---|
| cdclib | modules for clock domain crossing |
| comlib | modules for communication |
| genlib | grab bag of other modules |
| memlib | wrappers for distributed and block RAM; fifos |
| rbus | modules for rbus fabric; some basic rbus devices |
| rlink | rlink interface |
| serport | serial port interface |
| simlib | helper modules for test benches |
| xlib | warppers for some Xilinx components |