lpcmanager

LPCCommand : switch to wx.Timer instead of regular python timer for the rapidfire protection. With regular python timers, some refresh order could pile eventloop when interacting with the GUI while doing initial loading of signals.

2019-02-20, Edouard Tisserant
62e8bfd13812
LPCCommand : switch to wx.Timer instead of regular python timer for the rapidfire protection. With regular python timers, some refresh order could pile eventloop when interacting with the GUI while doing initial loading of signals.
import serial
import exceptions
from threading import Lock
import time
class LPCProtoError(exceptions.Exception):
"""Exception class"""
def __init__(self, msg):
self.msg = msg
def __str__(self):
return "Exception in PLC protocol : " + str(self.msg)
class LPCProto:
def __init__(self, port, rate, timeout):
# serialize access lock
if False:
# Debugging serial stuff
self._serialPort = serial.Serial( port, rate, timeout = timeout, writeTimeout = timeout )
class myser:
def readline(self_):
res = self._serialPort.readline()
print 'Recv :"', res, '"'
return res
def read(self_,cnt):
res = self._serialPort.read(cnt)
if len(res) > 16:
print "Recv :", map(hex,map(ord,res[:16])), "[...]"
else:
print "Recv :", map(hex,map(ord,res))
return res
def write(self_, string):
lstr=len(string)
if lstr > 16:
print "Send :", map(hex,map(ord,string[:16])), "[...]"
else:
print "Send :", map(hex,map(ord,string))
return self._serialPort.write(string)
# while len(string)>0:
# i = self._serialPort.write(string[:4096])
# print ".",
# string = string[i:]
# print
#return lstr
def flush(self_):
return self._serialPort.flush()
def close(self_):
self._serialPort.close()
self.serialPort = myser()
else:
# open serial port
self.serialPort = serial.Serial( port, rate, timeout = timeout )
# start with empty buffer
self.serialPort.flush()
def __del__(self):
if self.serialPort:
self.serialPort.close()
def close(self):
self.serialPort.close()
self.serialPort = None