examples/transport: pep8

examples/transport.py

@@ -32,8 +32,10 @@ class Transport(AutoContext):
         # also mark the frame as closed and prevent further append()ing
         self.tf.close()
         # user must pass all frames that are going to be used next
-        # selects possible frame id based on rtio_frame assignments from coredev
-        # distributes frames to the sub-devices in CompoundPDQ2 and uploads them
+        # selects possible frame id based on rtio_frame assignments
+        # from core device
+        # distributes frames to the sub-devices in CompoundPDQ2
+        # and uploads them
         # uploading is ARM_DIS, writing, ARM_EN
         self.electrodes.prepare(self.tf)
 
@@ -49,9 +51,7 @@ class Transport(AutoContext):
         # ensures no frame is currently being actively played
         # set rtio frame select signal to frame id
         # rtio trigger jump into transport frame
-        # (it would be nice if this could be made zero-duration/not advancing the
-        # timeline by smart scheduling of this frame-select + trigger + minimum wait
-        # sequence)
+        # (does not advance the timeline)
         self.tf.begin()
         # triggers pdqs to start transport frame segment
         # plays the transport waveform from 0 to stop
@@ -125,7 +125,8 @@ if __name__ == "__main__":
             pmt=rtio_core.RTIOIn(core=coredev, channel=0),
             # a compound pdq device that wraps multiple usb devices (looked up
             # by usb "serial number"/id) into one
-            electrodes=pdq2.CompoundPDQ2(core=coredev,
+            electrodes=pdq2.CompoundPDQ2(
+                core=coredev,
                 ids=["qc_q1_{}".format(i) for i in range(4)],
                 rtio_trigger=3, rtio_frame=(4, 5, 6)),
             transport_data=data,  # or: json.load