RMUL2025/lib/cmsis_5/CMSIS/DSP/SDFTools/examples/example1/graph.py

73 lines
1.5 KiB
Python
Executable File

from cmsisdsp.sdf.scheduler import *
### Define new types of Nodes
class Node(GenericNode):
def __init__(self,name,theType,inLength,outLength):
GenericNode.__init__(self,name)
self.addInput("i",theType,inLength)
self.addOutput("o",theType,outLength)
class Sink(GenericSink):
def __init__(self,name,theType,inLength):
GenericSink.__init__(self,name)
self.addInput("i",theType,inLength)
@property
def typeName(self):
return "Sink"
class Source(GenericSource):
def __init__(self,name,theType,inLength):
GenericSource.__init__(self,name)
self.addOutput("o",theType,inLength)
@property
def typeName(self):
return "Source"
class ProcessingNode(Node):
@property
def typeName(self):
return "ProcessingNode"
### Define nodes
floatType=CType(F32)
src=Source("source",floatType,5)
b=ProcessingNode("filter",floatType,7,5)
b.addLiteralArg(4)
b.addLiteralArg("Test")
b.addVariableArg("someVariable")
sink=Sink("sink",floatType,5)
g = Graph()
g.connect(src.o,b.i)
g.connect(b.o,sink.i)
print("Generate graphviz and code")
conf=Configuration()
conf.debugLimit=1
conf.cOptionalArgs="int someVariable"
#conf.displayFIFOSizes=True
# Prefix for global FIFO buffers
#conf.prefix="sched1"
#print(g.nullVector())
sched = g.computeSchedule()
#print(sched.schedule)
print("Schedule length = %d" % sched.scheduleLength)
print("Memory usage %d bytes" % sched.memory)
#
#conf.codeArray=True
sched.ccode("generated",conf)
with open("test.dot","w") as f:
sched.graphviz(f)