Added sync options for txns performed by the master

Signed-off-by: Anderson Ignacio <anderson@aignacio.com>

cocotbext/ahb/ahb_master.py

@@ -4,7 +4,7 @@
 # License           : MIT license <Check LICENSE>
 # Author            : Anderson I. da Silva (aignacio) <anderson@aignacio.com>
 # Date              : 08.10.2023
-# Last Modified Date: 12.11.2023
+# Last Modified Date: 14.11.2023
 
 import cocotb
 import logging
@@ -141,6 +141,7 @@ async def _send_txn(
         mode: Sequence[AHBWrite],
         trans: Sequence[AHBTrans],
         pip: bool = False,
+        sync: bool = True
     ) -> Sequence[dict]:
         """Drives the AHB transaction into the bus."""
         response = []
@@ -149,6 +150,11 @@ async def _send_txn(
         index = 0
         restart = False
 
+        # If sync, wait for one clock cycle before it starts
+        # useful when leaving out of reset
+        if sync:
+            await RisingEdge(self.clk)
+
         while index < len(address):
             txn_addr, txn_data, txn_size, txn_mode, txn_trans = (
                 address[index],
@@ -243,6 +249,7 @@ async def write(
         value: Union[int, Sequence[int]],
         size: Optional[Union[int, Sequence[int]]] = None,
         pip: Optional[bool] = False,
+        sync: Optional[bool] = True
     ) -> Sequence[dict]:
         """Write data in the AHB bus."""
 
@@ -294,13 +301,14 @@ async def write(
         width = len(self.bus.htrans)
         t_trans = self._create_vector(t_trans, width, "address_ph", pip)
 
-        return await self._send_txn(t_address, t_value, t_size, t_mode, t_trans, pip)
+        return await self._send_txn(t_address, t_value, t_size, t_mode, t_trans, pip, sync)
 
     async def read(
         self,
         address: Union[int, Sequence[int]],
         size: Optional[Union[int, Sequence[int]]] = None,
         pip: Optional[bool] = False,
+        sync: Optional[bool] = True
     ) -> Sequence[dict]:
         """Read data from the AHB bus."""
 
@@ -343,7 +351,7 @@ async def read(
         width = len(self.bus.htrans)
         t_trans = self._create_vector(t_trans, width, "address_ph", pip)
 
-        return await self._send_txn(t_address, t_value, t_size, t_mode, t_trans, pip)
+        return await self._send_txn(t_address, t_value, t_size, t_mode, t_trans, pip, sync)
 
     async def custom(
         self,
@@ -352,6 +360,7 @@ async def custom(
         mode: Union[int, Sequence[int]],
         size: Optional[Union[int, Sequence[int]]] = None,
         pip: Optional[bool] = True,
+        sync: Optional[bool] = True
     ) -> Sequence[dict]:
         """Back-to-Back operation"""
 
@@ -401,7 +410,7 @@ async def custom(
         width = len(self.bus.htrans)
         t_trans = self._create_vector(t_trans, width, "address_ph", pip)
 
-        return await self._send_txn(t_address, t_value, t_size, t_mode, t_trans, pip)
+        return await self._send_txn(t_address, t_value, t_size, t_mode, t_trans, pip, sync)
 
 
 class AHBMaster(AHBLiteMaster):

cocotbext/ahb/version.py

@@ -1 +1 @@
-__version__ = "0.2.1"
+__version__ = "0.2.2"