def run(self):
DataArray = c_short * self.NUM_CHUNK_SAMPLES
rawChan = DataArray()
self.dataNode.deleteData()
while not self.stopped:
status = self.deviceLib.acquireChunk(
c_char_p(self.addr), byref(rawChan), c_int(self.NUM_CHUNK_SAMPLES))
if status == -1:
print ('Acquisition Failed')
return
Event.stream(0, 'demostream_chan', Float32(self.currTime), Float32(rawChan[0]))
dataArr = Int16Array(rawChan)
startTime = Float64(self.currTime)
endTime = Float64(
self.currTime + self.period * self.NUM_CHUNK_SAMPLES)
dim = Range(startTime, endTime, Float64(self.period))
self.dataNode.makeSegment(startTime, endTime, dim, dataArr)
self.currTime += self.period * self.NUM_CHUNK_SAMPLES
currSecond = time.time()
if currSecond > self.prevSecond + 2:
Event.setevent('DEMOSTREAM_READY')
self.prevSecond = currSecond
