Add VCD dumping

chipsalliance · Dec 18, 2024 · 10e0f99 · 10e0f99
1 parent 51a77f4
commit 10e0f99
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diff --git a/verification/cocotb/common.mk b/verification/cocotb/common.mk
@@ -54,6 +54,11 @@ ifeq ($(SIM), vcs)
     COMPILE_ARGS += +libext+.sv +libext+.v
     COMPILE_ARGS += +warn=noIWNF,noPCWM-W
     COMPILE_ARGS += $(foreach dir,$(VERILOG_INCLUDE_DIRS),-y $(dir))
+
+    COMPILE_ARGS += -debug_access
+    COMPILE_ARGS += -top dump_vcd
+    VERILOG_SOURCES += $(I3C_ROOT)/verification/cocotb/common/dump_vcd.sv
+    EXTRA_ARGS += +dumpon
 endif
 
 COCOTB_HDL_TIMEUNIT         = 1ns

diff --git a/verification/cocotb/common/dump_vcd.sv b/verification/cocotb/common/dump_vcd.sv
@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: Apache-2.0
+
+module dump_vcd;
+  initial begin
+    $dumpfile("dump.vcd");
+    $dumpvars();
+  end
+endmodule