eric6/MicroPython/MicrobitDevices.py

Fri, 30 Aug 2019 19:07:18 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Fri, 30 Aug 2019 19:07:18 +0200
changeset 7186
ccd55666e9d2
parent 7173
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child 7229
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permissions
-rw-r--r--

Utilities, MicrobitDevices: added MicroPython to the known Python Variants.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2019 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing the device interface class for BBC micro:bit boards.
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8 """
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9
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10 from __future__ import unicode_literals
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11
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12 import sys
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13 import os
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14
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15 from PyQt5.QtCore import pyqtSlot, QStandardPaths
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16
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17 from .MicroPythonDevices import MicroPythonDevice
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18 from .MicroPythonWidget import HAS_QTCHART
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19
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20 from E5Gui import E5MessageBox, E5FileDialog
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21 from E5Gui.E5Application import e5App
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22 from E5Gui.E5ProcessDialog import E5ProcessDialog
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23
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24 import Utilities
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25 import Preferences
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26
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27
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28 class MicrobitDevice(MicroPythonDevice):
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29 """
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30 Class implementing the device for BBC micro:bit boards.
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31 """
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32 def __init__(self, microPythonWidget, parent=None):
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33 """
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34 Constructor
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35
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36 @param microPythonWidget reference to the main MicroPython widget
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37 @type MicroPythonWidget
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38 @param parent reference to the parent object
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39 @type QObject
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40 """
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41 super(MicrobitDevice, self).__init__(microPythonWidget, parent)
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42
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43 def setButtons(self):
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44 """
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45 Public method to enable the supported action buttons.
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46 """
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47 super(MicrobitDevice, self).setButtons()
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48 self.microPython.setActionButtons(
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49 run=True, repl=True, files=True, chart=HAS_QTCHART)
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50
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51 def forceInterrupt(self):
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52 """
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53 Public method to determine the need for an interrupt when opening the
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54 serial connection.
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55
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56 @return flag indicating an interrupt is needed
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57 @rtype bool
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58 """
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59 return True
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60
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61 def deviceName(self):
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62 """
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63 Public method to get the name of the device.
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64
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65 @return name of the device
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66 @rtype str
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67 """
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68 return self.tr("BBC micro:bit")
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69
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70 def canStartRepl(self):
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71 """
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72 Public method to determine, if a REPL can be started.
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73
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74 @return tuple containing a flag indicating it is safe to start a REPL
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75 and a reason why it cannot.
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76 @rtype tuple of (bool, str)
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77 """
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78 return True, ""
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79
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80 def canStartPlotter(self):
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81 """
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82 Public method to determine, if a Plotter can be started.
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83
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84 @return tuple containing a flag indicating it is safe to start a
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85 Plotter and a reason why it cannot.
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86 @rtype tuple of (bool, str)
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87 """
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88 return True, ""
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89
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90 def canRunScript(self):
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91 """
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92 Public method to determine, if a script can be executed.
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93
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94 @return tuple containing a flag indicating it is safe to start a
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95 Plotter and a reason why it cannot.
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96 @rtype tuple of (bool, str)
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97 """
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98 return True, ""
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99
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100 def runScript(self, script):
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101 """
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102 Public method to run the given Python script.
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103
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104 @param script script to be executed
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105 @type str
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106 """
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107 pythonScript = script.split("\n")
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108 self.sendCommands(pythonScript)
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109
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110 def canStartFileManager(self):
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111 """
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112 Public method to determine, if a File Manager can be started.
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113
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114 @return tuple containing a flag indicating it is safe to start a
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115 File Manager and a reason why it cannot.
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116 @rtype tuple of (bool, str)
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117 """
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118 return True, ""
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119
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120 def getWorkspace(self):
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121 """
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122 Public method to get the workspace directory.
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123
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124 @return workspace directory used for saving files
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125 @rtype str
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126 """
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127 # Attempts to find the path on the filesystem that represents the
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128 # plugged in MICROBIT board.
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129 deviceDirectory = Utilities.findVolume("MICROBIT")
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130
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131 if deviceDirectory:
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132 return deviceDirectory
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133 else:
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134 # return the default workspace and give the user a warning
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135 E5MessageBox.warning(
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136 self.microPython,
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137 self.tr("Workspace Directory"),
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138 self.tr("Could not find an attached BBC micro:bit.\n\n"
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139 "Please make sure the device is plugged "
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140 "into this computer."))
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141
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142 return super(MicrobitDevice, self).getWorkspace()
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143
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144 def hasTimeCommands(self):
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145 """
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146 Public method to check, if the device supports time commands.
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147
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148 The default returns True.
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149
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150 @return flag indicating support for time commands
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151 @rtype bool
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152 """
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153 return False
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154
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155 def addDeviceMenuEntries(self, menu):
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156 """
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157 Public method to add device specific entries to the given menu.
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158
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159 @param menu reference to the context menu
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160 @type QMenu
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161 """
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162 connected = self.microPython.isConnected()
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163
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164 act = menu.addAction(self.tr("Flash Default MicroPython Firmware"),
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165 self.__flashMicroPython)
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166 act.setEnabled(not connected)
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167 act = menu.addAction(self.tr("Flash Custom MicroPython Firmware"),
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168 self.__flashCustomMicroPython)
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169 act.setEnabled(not connected)
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170 menu.addSeparator()
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171 act = menu.addAction(self.tr("Flash Script"), self.__flashScript)
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172 act.setToolTip(self.tr(
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173 "Flash the current script to the selected device."))
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174 act.setEnabled(not connected)
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175 act = menu.addAction(self.tr("Save Script as 'main.py'"),
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176 self.__saveMain)
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177 act.setToolTip(self.tr(
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178 "Save the current script as 'main.py' on the connected device"))
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179 act.setEnabled(connected)
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180 menu.addSeparator()
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181 act = menu.addAction(self.tr("Reset micro:bit"), self.__resetDevice)
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182 act.setEnabled(connected)
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183 menu.addSeparator()
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184 menu.addAction(self.tr("Install 'uflash'"), self.__installUflashTool)
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185
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186 @pyqtSlot()
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187 def __flashMicroPython(self):
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188 """
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189 Private slot to flash the default MicroPython firmware to the device.
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190 """
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191 flashArgs = [
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192 "-u",
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193 "-m", "uflash",
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194 ]
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195 dlg = E5ProcessDialog(self.tr("'uflash' Output"),
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196 self.tr("Flash Default MicroPython Firmware"))
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197 res = dlg.startProcess(sys.executable, flashArgs)
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198 if res:
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199 dlg.exec_()
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200
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201 @pyqtSlot()
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202 def __flashCustomMicroPython(self):
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203 """
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204 Private slot to flash a custom MicroPython firmware to the device.
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205 """
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206 downloadsPath = QStandardPaths.standardLocations(
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207 QStandardPaths.DownloadLocation)[0]
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208 firmware = E5FileDialog.getOpenFileName(
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209 self.microPython,
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210 self.tr("Flash Custom MicroPython Firmware"),
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211 downloadsPath,
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212 self.tr("MicroPython Firmware Files (*.hex);;All Files (*)"))
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213 if firmware and os.path.exists(firmware):
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214 flashArgs = [
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diff changeset
215 "-u",
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Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
216 "-m", "uflash",
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217 "--runtime", firmware,
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Detlev Offenbach <detlev@die-offenbachs.de>
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218 ]
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diff changeset
219 dlg = E5ProcessDialog(
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220 self.tr("'uflash' Output"),
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221 self.tr("Flash Default MicroPython Firmware"))
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222 res = dlg.startProcess(sys.executable, flashArgs)
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diff changeset
223 if res:
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224 dlg.exec_()
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225
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226 @pyqtSlot()
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diff changeset
227 def __flashScript(self):
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228 """
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Detlev Offenbach <detlev@die-offenbachs.de>
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229 Private slot to flash the current script onto the selected device.
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230 """
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Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
231 aw = e5App().getObject("ViewManager").activeWindow()
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diff changeset
232 if not aw:
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diff changeset
233 return
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Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
234
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diff changeset
235 if not (aw.isPyFile() or aw.isMicroPythonFile()):
7123
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
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diff changeset
236 yes = E5MessageBox.yesNo(
7173
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diff changeset
237 self.microPython,
7123
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diff changeset
238 self.tr("Flash Script"),
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diff changeset
239 self.tr("""The current editor does not contain a Python"""
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
240 """ script. Flash it anyway?"""))
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
241 if not yes:
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7114
diff changeset
242 return
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7114
diff changeset
243
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
244 script = aw.text().strip()
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Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
245 if not script:
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
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diff changeset
246 E5MessageBox.warning(
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diff changeset
247 self.microPython,
7123
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diff changeset
248 self.tr("Flash Script"),
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Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
249 self.tr("""The script is empty. Aborting."""))
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diff changeset
250 return
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7114
diff changeset
251
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
252 if aw.checkDirty():
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
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diff changeset
253 filename = aw.getFileName()
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diff changeset
254 flashArgs = [
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Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
255 "-u",
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7114
diff changeset
256 "-m", "uflash",
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257 filename,
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258 ]
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
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259 dlg = E5ProcessDialog(self.tr("'uflash' Output"),
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260 self.tr("Flash Script"))
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261 res = dlg.startProcess(sys.executable, flashArgs)
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diff changeset
262 if res:
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263 dlg.exec_()
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264
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diff changeset
265 @pyqtSlot()
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266 def __saveMain(self):
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267 """
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268 Private slot to copy the current script as 'main.py' onto the
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269 connected device.
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270 """
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271 aw = e5App().getObject("ViewManager").activeWindow()
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272 if not aw:
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273 return
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274
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ccd55666e9d2 Utilities, MicrobitDevices: added MicroPython to the known Python Variants.
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275 if not (aw.isPyFile() or aw.isMicroPythonFile()):
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276 yes = E5MessageBox.yesNo(
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f611c3b7313f EspDevices, MicrobitDevices: fixed a few omissions.
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277 self.microPython,
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278 self.tr("Save Script as 'main.py'"),
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279 self.tr("""The current editor does not contain a Python"""
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280 """ script. Write it anyway?"""))
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diff changeset
281 if not yes:
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282 return
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283
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
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284 script = aw.text().strip()
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285 if not script:
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286 E5MessageBox.warning(
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287 self.microPython,
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288 self.tr("Save Script as 'main.py'"),
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diff changeset
289 self.tr("""The script is empty. Aborting."""))
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290 return
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291
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292 commands = [
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293 "fd = open('main.py', 'wb')",
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294 "f = fd.write",
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295 ]
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296 for line in script.splitlines():
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297 commands.append("f(" + repr(line + "\n") + ")")
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298 commands.append("fd.close()")
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299 out, err = self.microPython.commandsInterface().execute(commands)
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300 if err:
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301 E5MessageBox.critical(
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302 self.microPython,
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303 self.tr("Save Script as 'main.py'"),
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304 self.tr("""<p>The script could not be saved to the"""
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305 """ device.</p><p>Reason: {0}</p>""")
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306 .format(err.decode("utf-8")))
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307
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308 # reset the device
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309 self.microPython.commandsInterface().execute([
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310 "import microbit",
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diff changeset
311 "microbit.reset()",
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312 ])
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313
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diff changeset
314 @pyqtSlot()
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diff changeset
315 def __resetDevice(self):
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diff changeset
316 """
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diff changeset
317 Private slot to reset the connected device.
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diff changeset
318 """
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diff changeset
319 self.microPython.commandsInterface().execute([
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diff changeset
320 "import microbit",
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diff changeset
321 "microbit.reset()",
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diff changeset
322 ])
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7114
diff changeset
323
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7114
diff changeset
324 @pyqtSlot()
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Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
325 def __installUflashTool(self):
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7114
diff changeset
326 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7114
diff changeset
327 Private slot to install the uflash package via pip.
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7114
diff changeset
328 """
94948e2aa0a5 Implemented the support for the 'BBC micro:bit' device.
Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
329 pip = e5App().getObject("Pip")
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diff changeset
330 pip.installPackages(["uflash"], interpreter=sys.executable)
7161
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7134
diff changeset
331
728018c32b09 MicroPythonWidget: added actions to show the device documentation and to open the configuration page to the hamburger menu.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7134
diff changeset
332 def getDocumentationUrl(self):
728018c32b09 MicroPythonWidget: added actions to show the device documentation and to open the configuration page to the hamburger menu.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7134
diff changeset
333 """
728018c32b09 MicroPythonWidget: added actions to show the device documentation and to open the configuration page to the hamburger menu.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7134
diff changeset
334 Public method to get the device documentation URL.
728018c32b09 MicroPythonWidget: added actions to show the device documentation and to open the configuration page to the hamburger menu.
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parents: 7134
diff changeset
335
728018c32b09 MicroPythonWidget: added actions to show the device documentation and to open the configuration page to the hamburger menu.
Detlev Offenbach <detlev@die-offenbachs.de>
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diff changeset
336 @return documentation URL of the device
728018c32b09 MicroPythonWidget: added actions to show the device documentation and to open the configuration page to the hamburger menu.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7134
diff changeset
337 @rtype str
728018c32b09 MicroPythonWidget: added actions to show the device documentation and to open the configuration page to the hamburger menu.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7134
diff changeset
338 """
728018c32b09 MicroPythonWidget: added actions to show the device documentation and to open the configuration page to the hamburger menu.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 7134
diff changeset
339 return Preferences.getMicroPython("MicrobitDocuUrl")

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