jonathan/scopething
1
0
Fork 0
mirror of https://github.com/jonathanhogg/scopething synced 2025-07-14 03:02:09 +01:00
Code Issues Releases Wiki Activity

Large part of capture working

Browse Source
This commit is contained in:
Jonathan Hogg
2016-10-17 19:14:19 +01:00
parent 5ab80ddf1d
commit c8211dceb0
3 changed files with 343 additions and 196 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
streams.py
View File

@ -1,9 +1,12 @@
import asyncio
import logging
import os
import serial
import serial.tools.list_ports
import time
Log = logging.getLogger('streams')
class SerialStream:
@ -16,7 +19,7 @@ class SerialStream:
self._device = self.available_ports()[port]
self._connection = serial.Serial(self._device, timeout=0, write_timeout=0, **kwargs)
self._loop = loop if loop is not None else asyncio.get_event_loop()
self._input_buffer = b''
self._input_buffer = bytes()
def __repr__(self):
return '<{}:{}>'.format(self.__class__.__name__, self._device)
@ -37,7 +40,7 @@ class SerialStream:
def _feed_data(self, data, future):
n = self._connection.write(data)
print('{:.3f} -> {}'.format(time.time(), repr(data[:n])))
Log.debug('Write {}'.format(repr(data[:n])))
future.set_result(n)
self._loop.remove_writer(self._connection)
@ -45,7 +48,7 @@ class SerialStream:
while True:
if self._input_buffer:
if n is None:
data, self._input_buffer = self._input__buffer, b''
data, self._input_buffer = self._input_buffer, bytes()
else:
data, self._input_buffer = self._input_buffer[:n], self._input_buffer[n:]
return data
@ -77,7 +80,7 @@ class SerialStream:
def _handle_data(self, n, future):
data = self._connection.read(n if n is not None else self._connection.in_waiting)
print('{:.3f} <- {}'.format(time.time(), repr(data)))
Log.debug('Read {}'.format(repr(data)))
future.set_result(data)
self._loop.remove_reader(self._connection)