diff options
| -rw-r--r-- | examples/mimas2/README | 8 | ||||
| -rw-r--r-- | examples/mimas2/example.ucf | 13 | ||||
| -rw-r--r-- | examples/mimas2/example.v | 14 | ||||
| -rw-r--r-- | examples/mimas2/run.sh | 8 | ||||
| -rw-r--r-- | examples/mimas2/run_yosys.ys | 4 | ||||
| -rw-r--r-- | techlibs/xilinx/cells_map.v | 4 |
6 files changed, 49 insertions, 2 deletions
diff --git a/examples/mimas2/README b/examples/mimas2/README new file mode 100644 index 000000000..b12875cbc --- /dev/null +++ b/examples/mimas2/README @@ -0,0 +1,8 @@ +A simple example design, based on the Numato Labs Mimas V2 board +================================================================ + +This example uses Yosys for synthesis and Xilinx ISE +for place&route and bit-stream creation. + +To synthesize: + bash run.sh diff --git a/examples/mimas2/example.ucf b/examples/mimas2/example.ucf new file mode 100644 index 000000000..4e31b74ab --- /dev/null +++ b/examples/mimas2/example.ucf @@ -0,0 +1,13 @@ +CONFIG VCCAUX = "3.3" ; + + +NET "CLK" LOC = D9 | IOSTANDARD = LVCMOS33 | PERIOD = 12MHz ; + +NET "LED[7]" LOC = P15 | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ; +NET "LED[6]" LOC = P16 | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ; +NET "LED[5]" LOC = N15 | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ; +NET "LED[4]" LOC = N16 | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ; +NET "LED[3]" LOC = U17 | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ; +NET "LED[2]" LOC = U18 | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ; +NET "LED[1]" LOC = T17 | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ; +NET "LED[0]" LOC = T18 | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ; diff --git a/examples/mimas2/example.v b/examples/mimas2/example.v new file mode 100644 index 000000000..2a9117393 --- /dev/null +++ b/examples/mimas2/example.v @@ -0,0 +1,14 @@ +module example( + input wire CLK, + output wire [7:0] LED +); + +reg [27:0] ctr; +initial ctr = 0; + +always @(posedge CLK) + ctr <= ctr + 1; + +assign LED = ctr[27:20]; + +endmodule diff --git a/examples/mimas2/run.sh b/examples/mimas2/run.sh new file mode 100644 index 000000000..aafde78ed --- /dev/null +++ b/examples/mimas2/run.sh @@ -0,0 +1,8 @@ +#!/bin/sh +set -e +yosys run_yosys.ys +edif2ngd example.edif +ngdbuild example -uc example.ucf -p xc6slx9csg324-3 +map -w example +par -w example.ncd example_par.ncd +bitgen -w example_par.ncd -g StartupClk:JTAGClk diff --git a/examples/mimas2/run_yosys.ys b/examples/mimas2/run_yosys.ys new file mode 100644 index 000000000..b3204b1ca --- /dev/null +++ b/examples/mimas2/run_yosys.ys @@ -0,0 +1,4 @@ +read_verilog example.v +synth_xilinx -top example -family xc6s +iopadmap -bits -outpad OBUF I:O -inpad IBUF O:I +write_edif -pvector bra example.edif diff --git a/techlibs/xilinx/cells_map.v b/techlibs/xilinx/cells_map.v index 2eb9fa2c1..b8e5bafc7 100644 --- a/techlibs/xilinx/cells_map.v +++ b/techlibs/xilinx/cells_map.v @@ -24,9 +24,9 @@ module _90_dff_nn0_to_np0 (input D, C, R, output Q); \$_DFF_NP0_ _TECHMAP_REPLA (* techmap_celltype = "$_DFF_PN0_" *) module _90_dff_pn0_to_pp0 (input D, C, R, output Q); \$_DFF_PP0_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule (* techmap_celltype = "$_DFF_NN1_" *) -module _90_dff_nn1_to_np1 (input D, C, R, output Q); \$_DFF_NP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule +module _90_dff_nn1_to_np1 (input D, C, R, output Q); \$_DFF_NP1_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule (* techmap_celltype = "$_DFF_PN1_" *) -module _90_dff_pn1_to_pp1 (input D, C, R, output Q); \$_DFF_PP1 _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule +module _90_dff_pn1_to_pp1 (input D, C, R, output Q); \$_DFF_PP1_ _TECHMAP_REPLACE_ (.D(D), .Q(Q), .C(C), .R(~R)); endmodule module \$__SHREG_ (input C, input D, input E, output Q); parameter DEPTH = 0; |