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89 lines
3.0 KiB
Python
89 lines
3.0 KiB
Python
###########################################
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# Project: CMSIS DSP Library
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# Title: appnodes.py
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# Description: Application nodes for Example 4
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#
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# $Date: 29 July 2021
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# $Revision: V1.10.0
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#
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# Target Processor: Cortex-M and Cortex-A cores
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# -------------------------------------------------------------------- */
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#
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# Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed under the Apache License, Version 2.0 (the License); you may
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# not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an AS IS BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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############################################
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from cmsisdsp.cg.static.nodes.simu import *
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from custom import *
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from cmsisdsp.cg.static.nodes.Duplicate import *
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class Sink(GenericSink):
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def __init__(self,inputSize,fifoin):
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GenericSink.__init__(self,inputSize,fifoin)
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def run(self):
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# The null sink must at least get a buffer from the FIFO
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# or the FIFO will never be emptied
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# and the scheduling will fail
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print("Sink")
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i=self.getReadBuffer()
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for c in i:
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print("%f + I %f" % (c.re,c.im))
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return(0)
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class ProcessingNode(GenericNode12):
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def __init__(self,inputSize,outputSize1,outputSize2,fifoin,fifoout1,fifoout2,i,s,v):
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GenericNode12.__init__(self,inputSize,outputSize1,outputSize2,fifoin,fifoout1,fifoout2)
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def run(self):
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print("ProcessingNode");
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a=self.getReadBuffer()
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b=self.getWriteBuffer1()
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c=self.getWriteBuffer2()
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# Python objects have reference semantic and not
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# value semantic.
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# So in a write buffer, we can change the
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# fields of an object but we should not
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# replace the object and risk creating sharing
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# Duplicating the a object may be ok
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b[0]=a[3]
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c[0]=a[3]
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return(0)
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class Source(GenericSource):
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def __init__(self,outputSize,fifoout):
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GenericSource.__init__(self,outputSize,fifoout)
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self._counter=0
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def run(self):
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print("Source");
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a=self.getWriteBuffer()
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# Python objects have reference semantic and not
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# value semantic.
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# So in a write buffer, we can change the
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# fields of an object but we should not
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# replace the object and risk creating sharing
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# Creating a new object may be ok
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for i in range(self._outputSize):
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#a[i].re = 1.0*self._counter
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#a[i].im = 0.0
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a[i] = MyComplex(1.0*self._counter, 0.0)
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self._counter = self._counter + 1
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return(0)
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