代码拉取完成，页面将自动刷新
# -*- coding: utf-8 -*-
from PyQt4.QtGui import *
from PyQt4.QtCore import *
import sys
import threading
import struct
import ctypes
import re
import ui_main
import ControlCAN
class MainDlg(QDialog, ui_main.Ui_dlgMain):
__USBCAN = None
__DevTypeList = {"DEV_USBCAN" : 3,
"DEV_USBCAN2" : 4 }
__devType = None
__devIdx = None
__Chn = None
__timer = None
__baud = '''
Time0 Time1
10 Kbps 0x9F 0xFF
20 Kbps 0x18 0x1C
40 Kbps 0x87 0xFF
50 Kbps 0x09 0x1C
80 Kbps 0x83 0xFF
100 Kbps 0x04 0x1C
125 Kbps 0x03 0x1C
200 Kbps 0x81 0xFA
250 Kbps 0x01 0x1C
400 Kbps 0x80 0xFA
500 Kbps 0x00 0x1C
666 Kbps 0x80 0xB6
800 Kbps 0x00 0x16
1000 Kbps 0x00 0x14
'''
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
def __init__(self, parent=None):
super(MainDlg, self).__init__(parent)
self.setupUi(self)
self.cmb_devType.addItem("DEV_USBCAN")
self.cmb_devType.addItem("DEV_USBCAN2")
self.cmb_devType.setCurrentIndex(1)
self.cmb_Chn.addItem("1")
self.cmb_Chn.addItem("2")
self.cmb_Chn.setCurrentIndex(0)
self.lineEdit_AccCode.setText("00000000")
self.lineEdit_AccMask.setText("FFFFFFFF")
self.lineEdit_Time0.setText("00")
self.lineEdit_Time1.setText("1C")
self.cmb_Filter.addItem(u"接收全部类型")
self.cmb_Filter.addItem(u"只接收标准帧")
self.cmb_Filter.addItem(u"只接收扩展帧")
self.cmb_Filter.setCurrentIndex(0)
self.cmb_Mode.addItem(u"正常")
self.cmb_Mode.addItem(u"只听")
self.cmb_Mode.addItem(u"自测")
self.cmb_Mode.setCurrentIndex(0)
self.cmb_FrameType.addItem(u"标准帧")
self.cmb_FrameType.addItem(u"扩展帧")
self.cmb_FrameType.setCurrentIndex(0)
self.cmb_FrameFormat.addItem(u"数据帧")
self.cmb_FrameFormat.addItem(u"远程帧")
self.cmb_FrameFormat.setCurrentIndex(0)
self.pushBtn_startCAN.setDisabled(1)
self.pushBtn_txdata.setDisabled(1)
try:
self.__USBCAN = ctypes.windll.LoadLibrary(".\ControlCAN.dll")
self.pushBtn_connect.setDisabled(0)
except:
QMessageBox.information(self, u"错误", u"找不到ControlCAN.dll")
sys.exit
boardInfo = ControlCAN.VCI_BOARD_INFO1()
x = self.__USBCAN.VCI_FindUsbDevice(ctypes.byref(boardInfo))
for i in range(x):
self.cmb_devIndex.addItem(str(i))
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#自动关联的槽函数
@pyqtSlot()
def on_pushBtn_connect_clicked(self):
if self.pushBtn_connect.text() == u'连接':
text = self.cmb_devType.currentText()
text = text.toLatin1()
str = ""
for i in text:
str += i
self.__devType = self.__DevTypeList.get(str)
self.__devIdx = self.cmb_devIndex.currentIndex()
err = self.__USBCAN.VCI_OpenDevice(self.__devType, self.__devIdx, 0)
if err == 1:
#QMessageBox.information(self, u"恭喜", u"连接成功!")
self.cmb_devType.setDisabled(1)
self.cmb_devIndex.setDisabled(1)
self.cmb_Chn.setDisabled(1)
self.pushBtn_startCAN.setDisabled(0)
self.pushBtn_connect.setText(u'关闭')
else:
QMessageBox.information(self, u"错误", u"找不到设备")
elif self.pushBtn_connect.text() == u'关闭':
self.__timer.cancel()
self.__USBCAN.VCI_CloseDevice(self.__devType, self.__devIdx)
self.cmb_devType.setDisabled(0)
self.cmb_devIndex.setDisabled(0)
self.cmb_Chn.setDisabled(0)
self.pushBtn_startCAN.setDisabled(1)
self.pushBtn_txdata.setDisabled(1)
self.pushBtn_connect.setText(u'连接')
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@pyqtSlot()
def on_pushBtn_startCAN_clicked(self):
self.__Chn = self.cmb_Chn.currentIndex()
qs = self.lineEdit_AccCode.text(); qs = qs.toUInt(16); AccCode = qs[0];
qs = self.lineEdit_AccMask.text(); qs = qs.toUInt(16); AccMask = qs[0];
qs = self.lineEdit_Time0.text(); qs = qs.toUInt(16); time0 = qs[0];
qs = self.lineEdit_Time1.text(); qs = qs.toUInt(16); time1 = qs[0];
filter = self.cmb_Filter.currentIndex() + 1
mode = self.cmb_Mode.currentIndex()
initcfg = ControlCAN.VCI_INIT_CONFIG()
initcfg.AccCode = AccCode
initcfg.AccMask = AccMask
initcfg.Reserved = 0
initcfg.Filter = filter
initcfg.Timing0 = time0
initcfg.Timing1 = time1
initcfg.Mode = mode
err = self.__USBCAN.VCI_InitCAN(self.__devType, self.__devIdx, self.__Chn, ctypes.addressof(initcfg))
if err == 1:
self.__USBCAN.VCI_StartCAN(self.__devType, self.__devIdx, self.__Chn)
self.pushBtn_txdata.setDisabled(0)
self.__timer = threading.Timer(0.1, self.can_rx)
self.__timer.start()
elif err == 0:
QMessageBox.information(self, u"错误", u"初始化失败")
elif err == -1:
QMessageBox.information(self, u"错误", u"设备不存在")
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@pyqtSlot(str)
def on_lineEdit_AccCode_textChanged(self, s):
if self.pushBtn_connect.text() == u'关闭':
self.on_pushBtn_startCAN_clicked()
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@pyqtSlot(str)
def on_lineEdit_AccMask_textChanged(self, s):
if self.pushBtn_connect.text() == u'关闭':
self.on_pushBtn_startCAN_clicked()
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@pyqtSlot(str)
def on_lineEdit_Time0_textChanged(self, s):
if self.pushBtn_connect.text() == u'关闭':
self.on_pushBtn_startCAN_clicked()
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@pyqtSlot(str)
def on_lineEdit_Time1_textChanged(self, s):
if self.pushBtn_connect.text() == u'关闭':
self.on_pushBtn_startCAN_clicked()
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@pyqtSlot(int)
def on_cmb_Filter_currentIndexChanged(self, i):
if self.pushBtn_connect.text() == u'关闭':
self.on_pushBtn_startCAN_clicked()
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@pyqtSlot(int)
def on_cmb_Mode_currentIndexChanged(self, i):
if self.pushBtn_connect.text() == u'关闭':
self.on_pushBtn_startCAN_clicked()
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@pyqtSlot()
def on_pushBtn_txdata_clicked(self):
type = self.cmb_FrameType.currentIndex()
format = self.cmb_FrameFormat.currentIndex()
qs = self.lineEdit_ID.text(); qs = qs.toUInt(16); ID = qs[0];
qs = self.lineEdit_Data.text();
qs = qs.toLatin1()
s = ""
for i in qs: s += i
s = s.strip() #去除前后空格
t = re.split("\\s+", s)
sz = len(t)
if sz > 8: sz = 8
data = (ctypes.c_ubyte * 8)()
for i in range(sz):
data[i] = int(t[i], 16)
canobj = ControlCAN.VCI_CAN_OBJ()
canobj.ID = ID
#canobj.TimeStamp
#canobj.TimeFlag
#canobj.SendType
canobj.RemoteFlag = format #1 远程 0 数据
canobj.ExternFlag = type #1 扩展 0 标准
canobj.DataLen = sz
canobj.Data = data
frameNum = self.__USBCAN.VCI_Transmit(self.__devType, self.__devIdx, self.__Chn, ctypes.addressof(canobj), 1)
if frameNum == -1:
QMessageBox.information(self, u"错误", u"设备错误")
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@pyqtSlot()
def on_pushBtn_baudHelp_clicked(self):
self.textEdit_recv.insertPlainText(self.__baud)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@pyqtSlot()
def on_pushBtn_clr_clicked(self):
self.textEdit_recv.clear()
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
def can_rx(self):
rxobj = ControlCAN.VCI_CAN_OBJ()
res = self.__USBCAN.VCI_Receive(self.__devType, self.__devIdx, self.__Chn, ctypes.addressof(rxobj), 1000, 100);
if res > 0:
#print res
dl = rxobj.DataLen;
type = rxobj.ExternFlag; type = (type==0) and (u'标准帧') or (u'扩展帧')
format = rxobj.RemoteFlag; format = (format==0) and (u'数据帧') or (u'远程帧')
id = rxobj.ID
rx = 'ID: 0x' + ("%02X" %(id)) + ' ' + type + ' ' + format + ' ' + str(dl) + 'B: '
data = rxobj.Data
s = ""
for i in range(dl):
s += "%02X " %(data[i])
self.textEdit_recv.insertPlainText(rx + s + '\r\n')
self.__timer = threading.Timer(0.1, self.can_rx)
self.__timer.start()
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
app = QApplication(sys.argv)
mainDlg = MainDlg()
mainDlg.show()
app.exec_()
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