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505 Commits

Author SHA1 Message Date
Clifford Wolf ea82191c57 Add inout ports to cells_xtra.v 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-10-08 11:38:10 -07:00
Tim Ansell cd261795ba xilinx: Adding missing inout IO port to IOBUF 2018-10-08 11:38:10 -07:00
David Shah ae8637cd63 ecp5: Don't map ROMs to DRAM 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-10-08 11:38:10 -07:00
Clifford Wolf 51f1bbeeb0 Add iCE40 SB_SPRAM256KA simulation model 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-09-10 11:57:24 +02:00
Henner Zeller 3aa4484a3c Consistent use of 'override' for virtual methods in derived classes. 
o Not all derived methods were marked 'override', but it is a great
  feature of C++11 that we should make use of.
o While at it: touched header files got a -*- c++ -*- for emacs to
  provide support for that language.
o use YS_OVERRIDE for all override keywords (though we should probably
  use the plain keyword going forward now that C++11 is established)
 2018-07-20 23:51:06 -07:00
David Shah 3a3558acce ecp5: Fixing miscellaneous sim model issues 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-16 15:56:12 +02:00
David Shah e9ef077266 ecp5: Fixing 'X' issues with LUT simulation models 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-16 15:20:34 +02:00
David Shah b2c62ff8ef ecp5: ECP5 synthesis fixes 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-16 14:33:13 +02:00
David Shah 459d367913 ecp5: Adding synchronous set/reset support 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-14 16:18:01 +02:00
David Shah 241429abac ecp5: Add DRAM match rule 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-13 16:25:52 +02:00
David Shah 4a60bc83ab ecp5: Cells and mappings fixes 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-13 16:14:08 +02:00
David Shah b0fea67cc6 ecp5: Fixing arith_map 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-13 15:49:59 +02:00
David Shah 11c916840d ecp5: Initial arith_map implementation 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-13 15:46:12 +02:00
David Shah c2d7be140a ecp5: Adding basic synth_ecp5 based on synth_ice40 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-13 14:52:25 +02:00
David Shah eb8f3f7dc4 ecp5: Adding DFF maps 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-13 14:32:23 +02:00
David Shah 1def34f2a6 ecp5: Adding DRAM map 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-13 14:08:42 +02:00
David Shah b1b9e23f94 ecp5: Adding basic cells_sim and mapper for LUTs up to LUT7 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-13 13:27:24 +02:00
David Shah cd65eeb3b3 ice40: Add CIN_CONST and CIN_SET parameters to ICESTORM_LC 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-13 13:09:18 +02:00
Clifford Wolf 57fc8dd582 Add "synth_ice40 -json" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-06-13 13:35:10 +02:00
Clifford Wolf 83631555dd Fix ice40_opt for cases where a port is connected to a signal with width != 1 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-06-11 18:12:42 +02:00
Clifford Wolf 7fecc3c199 Make -nordff the default in "prep" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-05-30 13:17:09 +02:00
Olof Kindgren faac2c5595 Avoid mixing module port declaration styles in ice40 cells_sim.v 
The current code requires workarounds for several simulators
For modelsim, the file must be compiled with -mixedansiports and
xsim needs --relax.
 2018-05-17 13:54:43 +02:00
Clifford Wolf 47eb150eec
Merge pull request #537 from mithro/yosys-vpr 
Improving Yosys when used with VPR
 2018-05-04 12:32:30 +02:00
Clifford Wolf b4c1d3084f Add "synth_intel --noiopads" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-04-30 13:02:56 +02:00
Tim 'mithro' Ansell d6bdefd2e9 Improving vpr output support. 
* Support output BLIF for Xilinx architectures.
 * Support using .names in BLIF for Xilinx architectures.
 * Use the same `NO_LUT` define in both `synth_ice40` and
  `synth_xilinx`.
 2018-04-18 16:55:12 -07:00
Tim 'mithro' Ansell ca39e493ba synth_ice40: Rework the vpr blif output slightly. 2018-04-18 16:55:08 -07:00
Clifford Wolf 81a457c4a6 Add "synth_ice40 -nodffe" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-04-16 20:44:26 +02:00
c60k28 efed2420d6 Fixed broken Quartus backend on dffeas init value (Error (12170): Illegal value for the POWER_UP parameter. Fixed and tested Cyclone V device 2018-03-31 22:48:47 -06:00
Robert Ou 14e49fb057 coolrunner2: Add an ANDTERM/XOR between chained FFs 
In some cases (e.g. the low bits of counters) the design might end up
with a flip-flop whose input is directly driven by another flip-flop.
This isn't possible in the Coolrunner-II architecture, so add a single
AND term and XOR in this case.
 2018-03-31 03:54:48 -07:00
Robert Ou cfa3753b89 coolrunner2: Split multi-bit nets 
The PAR tool doesn't expect any "dangling" nets with no drivers nor
sinks. By splitting the nets, clean removes them.
 2018-03-31 02:56:11 -07:00
Robert Ou 8fe9cdf364 coolrunner2: Add extraction for TFFs 2018-03-31 02:54:26 -07:00
Larry Doolittle efaef82f75 Squelch trailing whitespace, including meta-whitespace 2018-03-11 16:03:41 +01:00
Clifford Wolf 6991c132b5 Add Xilinx RAM64X1D and RAM128X1D simulation models 2018-03-07 17:31:48 +01:00
Clifford Wolf 27dd500d31 Add "synth -noshare" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-03-04 17:13:45 +01:00
Clifford Wolf eb67a7532b Add $allconst and $allseq cell types 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-02-23 13:14:47 +01:00
Robert Ou 2abcd98527 coolrunner2: Move LOC attributes onto the IO cells 2018-01-17 16:17:32 -08:00
Clifford Wolf 9ac560f5d3 Add "dffinit -highlow" and fix synth_intel 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-01-09 18:42:19 +01:00
Clifford Wolf b66d50e62d Fix minor typo in "prep" help message 2017-12-19 21:44:05 +01:00
Graham Edgecombe f93e6637aa Fix port names in SB_IO_OD 2017-12-10 15:33:38 +00:00
Graham Edgecombe 52ace35a73 Remove trailing comma from SB_IO_OD port list 
This isn't compatible with Icarus Verilog.
 2017-12-10 15:33:38 +00:00
Tim Ansell 3cc31f197c
Fix spelling in -vpr help for synth_ice40 2017-12-08 18:44:45 -08:00
Clifford Wolf 1f6e8f86c5
Merge pull request #462 from daveshah1/up5k 
Add remaining UltraPlus cells to ice40 techlib
 2017-11-28 15:53:53 +01:00
David Shah 5e8d1922a4 Add remaining UltraPlus cells to ice40 techlib 2017-11-28 11:07:49 +00:00
Clifford Wolf 4782d59a3f
Merge pull request #455 from daveshah1/up5k 
Add UltraPlus specific cells to ice40 techlib
 2017-11-18 19:12:48 +01:00
David Shah 0505f1043c Remove unnecessary keep attributes 2017-11-18 17:53:21 +00:00
Clifford Wolf c01df04e32
Merge pull request #453 from dh73/master 
Updating Intel FPGA subsystem with Cyclone 10, minor changes in examples/intel directory and Speedster cells
 2017-11-18 09:56:36 +01:00
David Shah 8ae73e60e2 Merge branch 'master' into up5k 2017-11-17 15:15:39 +00:00
Clifford Wolf 234726c655 Add "synth_ice40 -vpr" 2017-11-16 21:37:02 +01:00
David Shah f9f3ca5da0 Add some UltraPlus cells to ice40 techlib 2017-11-16 12:24:35 +00:00
dh73 3fd1d61e2a Initial Cyclone 10 support 2017-11-08 22:45:21 -06:00