rhea
common components¶
The rhea
top-level namespace includes a small collection of
functions and objects that are commonly used in building subblocks
(cores). This is a thin-layer in the software stack used to build
complex digital systems.
The following is the list of the functions and objects in the rhea top-level namespace. See the information below for more details.
- rhea.Clock(init_val, frequency)
- rhea.Reset(init_val, active, isasync)
- rhea.Global()
- rhea.Constants(**named_constants)
- rhea.Signals(sigtype, num_sigs)
- rhea.syncro
- rhea.assign
-
class
rhea.
Clock
(val, frequency=1)¶
-
class
rhea.
Reset
(val, active, isasync)¶
-
class
rhea.
Global
(clock=None, reset=None, frequency=1)¶
-
class
rhea.
Constants
(**constargs)¶
-
rhea.
Signals
(sigtype, num_sigs)¶ Create a list of signals :param sigtype: The type to create a Signal from. :type sigtype: bool, intbv :param num_sigs: The number of signals to create in the list :type num_sigs: int
Returns: a list of signals all of type sigtype Return type: sigs Creating multiple signals of the same type is common, this function helps facilitate the creation of multiple signals of the same type.
- The following example creates two signals of bool
>>> enable, timeout = Signals(bool(0), 2)
- The following creates a list-of-signals of 8-bit types
>>> mem = Signals(intbv(0)[8:], 256)
-
rhea.
assign
()¶ assign a = b
-
rhea.
syncro
()¶ signal synchronizer
Parameters: - sigin – signal input.
- sigout – synchronized signal output.
- posedge – a positive edge in the sync
- negedge – a negitive edge in the sync
- num_sync_ff – the number of sync stages.