Added start method

Signed-off-by: Anderson Ignacio da Silva <[email protected]>

README.md

@@ -51,6 +51,7 @@ waves.add_signal(
     ],
     group="MISO",
 )
+waves.start()
 ...
 <Running sim, issuing txns>
 ...

cocotbext/waves/waves.py

@@ -4,7 +4,7 @@
 # License           : MIT license <Check LICENSE>
 # Author            : Anderson I. da Silva (aignacio) <[email protected]>
 # Date              : 25.10.2024
-# Last Modified Date: 31.10.2024
+# Last Modified Date: 01.11.2024
 import cocotb
 import wavedrom
 import json
@@ -56,6 +56,7 @@ def __init__(
         self.head = {"text": name, "tick": 0, "every": 1}
         self.foot = {"text": "Generated by cocotbext-waves", "tick": 0, "every": 1}
 
+        self._start = False
         self.close = False
         self.hscale = hscale
         self.debug = debug
@@ -65,7 +66,6 @@ def __init__(
         self.color_idx = 3  # Start color for multi-bit signal
 
         self.add_signal(clk, color=None, is_clock=True, is_posedge_clock=is_posedge)
-        self.mon = cocotb.start_soon(self._monitor())
 
         self.log = logging.getLogger(f"cocotb.waves.{name}")
         self.log.info(f"Waveform / Wavedrom - ({name})")
@@ -150,6 +150,11 @@ def add_signal(
             for item in sig_list:
                 self.waves["signal"].append(item)
 
+    def start(self):
+        if self._start is False:
+            self.mon = cocotb.start_soon(self._monitor())
+            self._start = True
+
     async def _monitor(self):
         while True:
             if self.is_posedge is True:

tests/test_gen_ahb_waves.py

@@ -4,7 +4,7 @@
 # License           : MIT license <Check LICENSE>
 # Author            : Anderson I. da Silva (aignacio) <[email protected]>
 # Date              : 25.10.2024
-# Last Modified Date: 31.10.2024
+# Last Modified Date: 01.11.2024
 import cocotb
 import os
 import random
@@ -80,6 +80,8 @@ async def run_test(dut, bp_fn=None, pip_mode=False):
         ]
     )
 
+    waves.start()
+
     await setup_dut(dut, cfg.RST_CYCLES)
 
     ahb_master = AHBMaster(AHBBus.from_entity(dut), dut.hclk, dut.hresetn, def_val="Z")

tests/test_gen_ahb_waves_ram.py

@@ -4,7 +4,7 @@
 # License           : MIT license <Check LICENSE>
 # Author            : Anderson I. da Silva (aignacio) <[email protected]>
 # Date              : 25.10.2024
-# Last Modified Date: 31.10.2024
+# Last Modified Date: 01.11.2024
 import cocotb
 import os
 import random
@@ -67,6 +67,8 @@ async def run_test(dut):
         group="MISO",
     )
 
+    waves.start()
+
     await setup_dut(dut, cfg.RST_CYCLES)
 
     ahb_lite_sram = AHBLiteSlaveRAM(

tests/test_gen_ahb_waves_trigger.py

@@ -4,7 +4,7 @@
 # License           : MIT license <Check LICENSE>
 # Author            : Anderson I. da Silva (aignacio) <[email protected]>
 # Date              : 25.10.2024
-# Last Modified Date: 31.10.2024
+# Last Modified Date: 01.11.2024
 import cocotb
 import os
 import random
@@ -65,6 +65,8 @@ async def run_test(dut):
     )
     waves.add_trigger(dut.hresetn, 1)
 
+    waves.start()
+
     await setup_dut(dut, cfg.RST_CYCLES)
 
     ahb_master = AHBMaster(AHBBus.from_entity(dut), dut.hclk, dut.hresetn, def_val="Z")