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| author | Clifford Wolf <clifford@clifford.at> | 2018-06-13 17:38:34 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2018-06-13 17:38:34 +0200 |
| commit | 1a3d0f2f5dd763e08a237d53e92d775704f46f01 (patch) | |
| tree | 968bc5b9085f3d96a2f1c93b0dac942dec4a0e75 /ice40 | |
| parent | 16ee2a89a8cf11cd7126cd4e352a096115ba0e1e (diff) | |
| download | nextpnr-1a3d0f2f5dd763e08a237d53e92d775704f46f01.tar.gz nextpnr-1a3d0f2f5dd763e08a237d53e92d775704f46f01.tar.bz2 nextpnr-1a3d0f2f5dd763e08a237d53e92d775704f46f01.zip | |
Add picorv32_top module with fewer IO pins
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Diffstat (limited to 'ice40')
| -rwxr-xr-x | ice40/picorv32.sh | 2 | ||||
| -rw-r--r-- | ice40/picorv32_top.v | 31 |
2 files changed, 32 insertions, 1 deletions
diff --git a/ice40/picorv32.sh b/ice40/picorv32.sh index 9d171e76..2c67f641 100755 --- a/ice40/picorv32.sh +++ b/ice40/picorv32.sh @@ -2,5 +2,5 @@ set -ex rm -f picorv32.v wget https://raw.githubusercontent.com/cliffordwolf/picorv32/master/picorv32.v -yosys -p 'synth_ice40 -nocarry -json picorv32.json -top picorv32' picorv32.v +yosys -p 'synth_ice40 -nocarry -json picorv32.json -top top' picorv32.v picorv32_top.v ../nextpnr-ice40 --hx8k --asc picorv32.asc --json picorv32.json diff --git a/ice40/picorv32_top.v b/ice40/picorv32_top.v new file mode 100644 index 00000000..27f0ef0c --- /dev/null +++ b/ice40/picorv32_top.v @@ -0,0 +1,31 @@ +module top ( + input clk, resetn, + output trap, + + output mem_valid, + output mem_instr, + input mem_ready, + + output [31:0] mem_addr, + output [31:0] mem_wdata, + output [ 3:0] mem_wstrb, + input [31:0] mem_rdata +); + picorv32 #( + .ENABLE_COUNTERS(0), + .TWO_STAGE_SHIFT(0), + .CATCH_MISALIGN(0), + .CATCH_ILLINSN(0) + ) cpu ( + .clk (clk ), + .resetn (resetn ), + .trap (trap ), + .mem_valid(mem_valid), + .mem_instr(mem_instr), + .mem_ready(mem_ready), + .mem_addr (mem_addr ), + .mem_wdata(mem_wdata), + .mem_wstrb(mem_wstrb), + .mem_rdata(mem_rdata) + ); +endmodule |