wiki:Docs/Prog/Manual/DeviceSupport/DIO

Version 3 (modified by Don Wilson, 15 years ago) ( diff )

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Table of Contents

  1. Application Libraries
  2. Database Libraries
    1. MySQL Client
    1. About SQLite
    2. SQLite Library (libsql)
      1. Using libsql
    3. SqlBuilder Class
    4. SQLite++ Class
    5. Using SQLite++ with SqlBuilder
  5. Standard 825 Library with Application class (lib825)
    1. Utility Functions
  6. Standard 825 Library with EVENT features (lib825ev)
  7. Communications Functions
  8. CComm
    1. Member Functions
      1. Send
        1. Description
        2. Parameters
        3. Return value
      2. Process
        1. Description
      3. AddRcvEvent
        1. Parameters
        2. Description
        3. Example
      4. SetDebugRawRead
        1. Parameters
        2. Description
        3. Example
    2. See Also
  9. CCommClient
      1. Constructor
        1. Parameters
      2. Member Functions
        1. Description
        2. Example
    2. See Also
  10. CCommSerial
    1. Constructors
        1. Parameters
        2. Remarks
        3. Examples
        4. Example
    2. Member Functions
      1. SetPort
        1. Parameters
        2. Return Value
      2. Open
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      3. Close
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      4. SetParameters
        1. Parameters
        2. Return Value
        3. Remarks
        4. Examples
      5. IsReady
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      6. SetRTS
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
    3. See Also
  11. CCommServer
      1. Constructor
      2. Member Functions
        1. Description
        2. Example
    2. See Also
  12. Analog Output (DAC Digital to Analog Conversion) Functions
    1. Example - Application manually setting DAC output voltage
  13. GetDAC
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  14. GetDACPercent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  15. GetDACRangeFromIndex
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  16. GetIndexFromDACRange
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  17. SetDACFloat
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  18. SetDACOutputRange
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  19. SetDACPercent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  20. SetDACReg
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  21. SetDACTrackGrossNet
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  22. SetDACTrackScale
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  23. StopDACTrackScale
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  24. Debug Functions
  25. DEBUG_MSG
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  26. DEBUG_SHOWDATA
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  27. Display Functions
  28. CBitmap
    1. Constructors
        1. Parameters
        2. Examples
    2. Member Functions
      1. LoadBitmp
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. DeleteBitmap
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      3. Draw
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      4. GetWidth
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      5. GetHeight
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      6. GetColorCnt
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      7. GetColorsAdded
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      8. GetError
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      9. ReclaimColors
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
  29. CFont 825gen2
    1. Constructors
        1. Parameters
        2. Examples
    2. Member Functions
      1. CFreetypeFont& GetFont(int zoom)
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. Load
        1. Parameters
        2. Return Value
      3. SetPixelSize
        1. Parameters
        2. Return Value
      4. GetStrWidth
        1. Parameters
        2. Return Value
      5. DisplayText
        1. Parameters
        2. Return Value
  30. CImage 825gen2
    1. Constructors
        1. Parameters
        2. Examples
    2. Member Functions
      1. LoadImage
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. Draw
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
  31. ClearLCD
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  32. DisplayStr DEPRECATED - Replace with DisplayText
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  33. DisplayText
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  34. GetX
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  35. GetY
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  36. InitLCD
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  37. IsFontLoaded
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  38. LocateLCD
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  39. PrintLCD
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  40. PrintLCDbutton
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  41. PrintLCDfont2
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  42. ReadFont
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  43. SetBkColor
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  44. SetCurColor
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  45. File Functions
  46. CFile
    1. Constructors
        1. Parameters
        2. Examples
    2. Member Functions
      1. Open
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. Close
        1. Parameters
        2. Retrun Value
        3. Remarks
        4. Example
      3. SetSerial
        1. Parameters
        2. Return Value
        3. Remarks
        4. Examples
      4. ReadLine
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      5. DeleteFile
        1. Parameters
        2. Return value
        3. Remarks
        4. Examples
      6. IsOpen
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      7. IsReady
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      8. SetRTS
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      9. GetFile
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      10. Print
        1. Parameters
        2. Return Value
        3. Remarks
        4. Examples
      11. SetNonBlocking
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      12. Read
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      13. Write
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      14. GetBytesRead
        1. Parameters
        2. Return Value
        3. Example
      15. GetbytesWritten
        1. Parameters
        2. Return Value
        3. Example
      16. Seek
  47. FileCopy
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  48. FindChromiumPath 825gen2
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  49. FindFlashDrive 825gen2
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  50. GetFilesInPathWithExtension
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  51. IsMounted
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  52. MakeDirIfNotExists
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  53. MountDirectory 825gen2
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  54. UnmountDirectory 825gen2
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  55. Form Functions
  56. CForm
    1. Methods
  57. CFormRect 825gen2
  58. EVENT
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  59. EVENT_FLAG_SHOW
    1. Examples
    2. See Also
  60. EVENT_SHOW_BTN_CONTENT
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  61. EnableItem
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
      1. See Also
  62. ExitWithCode
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  63. FORM_ADD_BUTTON
    1. Parameters
    2. Return Value
    3. Remarks
      1. Button Styles
    4. Examples
    5. See Also
  64. FORM_ADD_BUTTON2 825gen2
    1. Parameters
    2. Return Value
    3. Remarks
      1. Button Styles
    4. Examples
    5. See Also
  65. FORM_ADD_INPUT
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  66. FORM_ADD_INPUT2 825gen2
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  67. FORM_DONE_ESCAPE
    1. Example
      1. See Also
  68. FORM_DONE_EVENT_EXTERNAL
    1. Example
      1. See Also
  69. FORM_DONE_LEFT_ARROW
    1. Example
      1. See Also
  70. FORM_HIDE
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  71. FORM_INIT
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  72. FORM_IS_UPDATED
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  73. FORM_RUN
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  74. FORM_SHOW
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  75. FindName
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
  76. GetCurrentItemIndex
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
  77. GetExitCode
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  78. GetItem
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
  79. !GetItemByIDVal
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
  80. GetItemCount
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
  81. GetItemIndex
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
  82. HideItem
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
      1. See Also
  83. IN_EVENT_HIDE_FORM
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  84. IN_EVENT_SHOW_FORM
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  85. IN_EVENT_WRITE_DATA
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  86. IsChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  87. SetInputFont
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  88. SetKeyEvent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  89. ShowItem
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
      1. See Also
  90. WriteData
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
    6. See Also
  91. Input / Output (Digital I/O) Functions
  92. GetInput
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  93. GetInputMask
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  94. GetOutput
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  95. SetDIOCounter
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  96. SetOutput
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  97. SetOutputMask
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  98. StartDIOPulse
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  99. StartRepeatIO Deprecated
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  100. StopDIOPulse
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  101. StopRepeatIO Deprecated
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  102. Keypad/Sound Functions
  103. ClearKeyBuffer
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  104. KeyPadInsertKey
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  105. KeyPadSetUSBEvent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  106. OpenBeeper
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  107. PlayNotes
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  108. WaitKeypress
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  109. Process Functions
  110. GetProcessID
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  111. GetProcessIDExcludeSelf
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  112. KillProcess
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  113. ResetPrevGrossWt
  114. ResetPrevNetWt
  115. ResetPrevTareWt
  116. test
  117. String Functions
  118. FloatToStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  119. IntToStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  120. StrFmt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  121. StrFmtLen
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  122. StrToFloat
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  123. StrToInt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  124. StrTrimLeft
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  125. StrTrimRight
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  126. Ticket Functions
  127. CTktFlds
    1. Constructor
        1. Parameters
        2. Examples
    2. Member Functions
      1. Clear
        1. Parameters
        2. Return Value
        3. Remarks
        4. Examples
      2. Set
        1. Parameters
        2. Retrun Value
        3. Remarks
        4. Example
      3. SetEvent
        1. Parameters
        2. Retrun Value
        3. Remarks
        4. Example
      4. PrintTkt
        1. Parameters
        2. Return Value
        3. Remarks
        4. Examples
  128. PrintTkt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  129. Time and Date Functions
  130. CMillisecondTimer
    1. Constructors
        1. Parameters
        2. Example
    2. Member Functions
      1. Set
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. Clear
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
  131. CSleep
    1. Constructor
        1. Parameters
        2. Example
    2. Member Functions
      1. SetTime
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. Pause
        1. Parameters
        2. Retrun Value
        3. Remarks
        4. Example
  132. CTimer
    1. Constructors
        1. Parameters
        2. Example
    2. Member Functions
      1. Set
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
      2. Clear
        1. Parameters
        2. Return Value
        3. Remarks
        4. Example
  133. DoSleep
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  134. GetDateStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  135. GetLinuxTime
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  136. GetTimeStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  137. IsTimeChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  138. ResetPrevTime
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  139. SleepMilliseconds
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  140. SleepSeconds
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  141. Utility Functions
  142. GetKernelVer
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  143. GetKernelVerStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  144. GetLoaderVer
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  145. GetLoaderVerStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  146. GetMemFree
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  147. GetMnBdVer
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  148. GetMnBdVerStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  149. Weighing Functions
    1. Minimal Weight Indicator Sample Program
  150. CheckWIM * DEPRECATED - New apps should use MnBdSetWIM *
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  151. DLCRepeatMultiIncludeCellWts
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  152. FormatGrossWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  153. FormatNetWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  154. FormatTareWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  155. FormatWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  156. GetBelowZero
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  157. GetCapacity
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  158. GetCenterZero
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  159. GetCurUnitsLabel
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  160. GetDecimal
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  161. GetGrossWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  162. GetInterval
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  163. GetMotion
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  164. GetNetWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  165. GetNumScales
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  166. GetOverCap
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  167. GetProcessScale
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  168. GetSecUnitsLabel
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  169. GetTareWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  170. GetUnitsLabel
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  171. GetWtError
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  172. IsGrossWtChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  173. IsNetWtChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  174. IsTareWtChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  175. IsWtStatusChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  176. IsWtUnitsChanged
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  177. MnBdClearEvent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  178. MnBdClose
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  179. MnBdGetErr
  180. MnBdGetErrMsg
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  181. MnBdGetErrMsgStr
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  182. MnBdOpen
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  183. MnBdProcess * DEPRECATED - New apps should use StartRepeatMulti *
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  184. MnBdRead
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  185. MnBdRequest
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  186. MnBdSetEvent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  187. MnBdSetWIM
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  188. MnBdShutdown
  189. MnBdStartup
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  190. RequestWt * DEPRECATED - New apps should use StartRepeatMulti *
    1. Parameters
    2. Return Value
    3. Remarks
    4. See Also
  191. ResetPrevGrossWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  192. ResetPrevNetWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  193. ResetPrevTareWt
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  194. ResetPrevWtStatus
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  195. ResetPrevWtUnits
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  196. SetTareCurrent
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  197. SetTareValue
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  198. SetWIM * DEPRECATED - New apps should use MnBdSetWIM *
    1. Parameters
    2. Return Value
    3. Remarks
    4. Example
    5. See Also
  199. StartRepeatMulti
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  200. StartRepeatWt * DEPRECATED - New apps should use StartRepeatMulti *
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  201. StopRepeatMulti
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  202. StopRepeatWt * DEPRECATED - New apps should use StopRepeatMulti *
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  203. ZeroScale
    1. Parameters
    2. Return Value
    3. Remarks
    4. Examples
    5. See Also
  204. Development Environment
  205. Application Signing
  206. Debugging
    1. GDB
  207. Setup for Software Development
      1. About
      2. Features of the Cardinal 825 Programming Environment
      3. Required Files
      4. Installing the Environment
      5. Starting the Environment
      6. Using the Environment
        1. Welcome Screen
        2. Project Explorer
        3. Task Repositories
        4. Task Queries
        5. Subversion
        6. Hyper-V
  208. Version Control
    1. Subversion
      1. About Subversion
      2. Subclipse for Eclipse
        1. Installing Subclipse
          1. Importing Projects Using Subclipse
  209. Device Support
  210. Device Drivers
    1. Overview
  211. Beeper
    1. DIO
      1. Digital I/O
      2. DIO Events
        1. About
        2. The Code
      3. DIO Counting
        1. Description
        2. Example
    2. USB Support
      1. USB Mass Storage
      2. USB Keyboards
      3. USB Printing
        1. Successful Tests
        2. Currently Developing
        3. Unsuccessful
      4. USB to PC communications
  213. Display
    1. Fonts
  214. Network
    1. Network File System (NFS)
    2. Weight Server -- Network Access
    3. Network Programming
      1. 825 TCP/IP Server Example
      2. 825 TCP/IP Client Example
    4. Send E-mail from 825
    5. FTP
    6. Batch file to upload a file from a PC to an 825 using the 825 web …
    7. Batch file to download a file from an 825 to a PC using the 825 web …
  215. Serial Ports
    1. Using Serial Ports for Linux Shell
    2. Generic Serial Port Use
  216. USB Support
    1. 825 USB A Ports (2)
      1. USB Mass Storage
        1. Accessing USB storage from a program
      2. USB Keyboards
      3. USB Printing
        1. Compatible USB Printers
      4. USB Hubs
    2. 825 USB B Port (1)
      1. USB to PC communications
  217. Weighing
    1. Get Weight
      1. Command prompt testing
      2. Access the weight data from a program
  218. Foundation
  219. Application Mode Startup
    1. Introduction
    2. Modules
    3. Appmenu Shell Script
    4. Mounts
    5. Support Applications
  220. Shell operations - Linux / Windows command line Reference

DIO

Digital I/O

echo “L000000020000000F” > /dev/mnbd

This sets the state of the mainboard digital outputs. The “L” is the command, the following 8 characters or four hexadecimal bytes represent the state desired. The final 8 characters or four hexadecimal bytes represent a mask of which outputs are to be affected. In this example “F” is used as the mask to set the state of all four on-board outputs. 

# echo “I” > /dev/mnbd

This requests the status of the mainboard digital I/O. 

# cat < /dev/mnbd

response: 

# IA000000000

The last 8 character of the response are hexadecimal digits. Of these the first 4 digits are the state of the digital inputs. The final 4 digits are the state of the outputs. If the input 1 only is active the response is: 

# IA000010000

If inputs one and two are active the response is: 

# IA000030000

If inputs one, two, three, and four are active the response is: 

# IA0000F0000

Only a single hexadecimal digit is needed to represent the state of the four mainboard inputs.

ResponseInput 1Input 2Input 3Input 4
0OffOffOffOff
1OnOffOffOff
2OffOnOffOff
3OnOnOffOff
4OffOffOnOff
5OnOffOnOff
6OffOnOnOff
7OnOnOnOff
8OffOffOffOn
9OnOffOffOn
AOffOnOffOn
BOnOnOffOn
COffOffOnOn
DOnOffOnOn
EOffOnOnOn
FOnOnOnOn

For additional structure formats refer to MainboardProtocol

The lib825 library provides functions to facilitate applications performing digital I/O tasks.

Error: Failed to load processor Lineno
No macro or processor named 'Lineno' found

For digital I/O event operations refer to the DioEvent class.

DIO Events

About

This document will guide the programmer through the process of creating and using a simple DIO Event using the DioEvent class provided in the standard library (lib825). DIO Events are processed by the mainboard in order to allow a level of redundancy. Should the OPI board kernel crash the mainboard will continue to provide relay functionality and will disable events when their thresholds are reached.

The Code

To use a DIO event follow the example code below.

Error: Failed to load processor Lineno
No macro or processor named 'Lineno' found

The above code would create an event that would enable board 0 (mainboard) pin 0 when the gross weight of scale 1 is less than 250.00 and greater than 0.00.

DIO Counting

Description

Mainboard software 1.15 is required for counting feature. Kernel 2009-10-07 or later is required. All four inputs of the mainboard may be used for counting. The DIO cards allow any one of inputs 1 - 7 to be used for counting. Input 8 may also be used for counting. This allows for up to two inputs per DIO card to be used for counting.

Example

Error: Failed to load processor Lineno
No macro or processor named 'Lineno' found

USB Support

The Cardinal 825 supports many USB devices such as Flash Drives, Printers (Cardinal supported only!), keyboards, and mice.

USB Mass Storage

The 825 supports USB flash storage devices formatted with the FAT (file allocation table) and FAT32 file systems. From the serial command line when a USB storage device is inserted the display will appear similar to:

No image "usb_insert.jpg" attached to Docs/Prog/Manual/DeviceSupport/DIO

Use the mount command to access files on the USB flash drive: 

mount –t vfat /dev/sda1 /mnt/fl1

The files will then appear in the path /mnt/fl1 such as:

No image "usb_mount.jpg" attached to Docs/Prog/Manual/DeviceSupport/DIO

The file manager may be used to access USB flash drives. When the /mnt/fl1 folder is selected the file manager will automatically perform the mount command.

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USB Keyboards

As of kernel 2008-11-13 many USB keyboards should work with the 825. Simply plug the keyboard into an 825 USB connection.

No image "usb_keyboard.jpg" attached to Docs/Prog/Manual/DeviceSupport/DIO

Applications using the lib825 functions such as [[lib825:source:trunk/kypdbeep.cpp#L78 ReadKeypad]] or [[lib825:source:trunk/form.cpp#L1027 FormLCD] will automatically work with the USB keyboard. To test the keyboard without any app running type some characters on the keyboard and type: 

# cat /dev/usbkybd

Output:

No image "usb_keyboard_test.jpg" attached to Docs/Prog/Manual/DeviceSupport/DIO

The characters typed on the USB keyboard should show on the serial port terminal.

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USB Printing

usblp.ko device driver module for usb printing support. Type: 

# modprobe usblp

Kernel should be configured with /dev/usblp0 device node. If not type: 

# mknod /tmp/usblp0 c 180 0

/dev is in read-only file system so device node can be created under /tmp instead

This creates the character device driver with major number 180 and minor number 0. This should work unmodified with USB printers that accept raw text for printing using a default font.

A simple test is: 

# echo “ABCDEFGH” > /dev/usblp0
'''or'''
# echo “ABCDEFGH” > /tmp/usblp0

Applications may be written to open “/dev/usblp0” to print to USB printer 0 instead of “/dev/ttyS1” to open COM2

Successful Tests

  • Okidata Microline 320 Turbo - Older versions of this printer do not have USB port
  • Hewlett Packard DeskJet 830C - Does not print page until filled so extra line feeds are required to fill the page to finish the print

Currently Developing

  • HP LaserJet P1020

Unsuccessful

  • HP LaserJet P1006 - Research indicates this printer requires host to send firmware update file to printer, and does not accept raw text but requires XQX stream protocol

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USB to PC communications

To load the driver for USB to PC communications type: 

# modprobe g_serial use_acm=1

When the 825 is connected to the PC it will be recognized by the PC and if the driver is not already installed it will prompt for it. Refer to “gadget_serial.txt”

When the driver is installed the PC will appear to have another COM port. For testing on the PC you can then open a communications program such as HyperTerminal and set it to the appropriate COM port (which is actually a USB connection).

On the serial connection to the indicator type: 

# echo “abcdefg” > /dev/ttygserial

“abcdefg” will then appear on the Hyperterm display.

In HyperTerminal, type: 

123456

On the serial connection to the indicator type: 

# cat < /dev/ttygserial

The received characters “123456” from the PC will then be displayed.

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