MP3Car.com - View Single Post - OBDII / Elm MPG meter. Almost working but not quite!

god_of_cpu · 09-14-2004, 10:36 AM

Thats interesing... The m_header member isn't even used in the plug-in other then to initialize it so it should always be 0. Maybe its the type declaration in VB?

Have you looked at the values for m_Data in the packet prior to calling API_OBDII_Mode1_GetPacket and seeing if they are actually changed by the function call to see if the 205s are getting set by the plug-in or just garbage values that are in your varible to begin with?

Also, this shouldn't make a difference, but try using this packet type and see if you get better results:

Code:

Type API_OBDII_MSGPACKET
    m_dwTimeRecieved As Long
    m_iNumDataBytes As Byte
    m_Header1 As Byte
    m_Header2 As Byte
    m_Header3 As Byte
    m_Data1 As Byte
    m_Data2 As Byte
    m_Data3 As Byte
    m_Data4 As Byte
    m_Data5 As Byte
    m_Data6 As Byte
    m_Data7 As Byte
End Type

09-14-2004, 10:36 AM	#35
god_of_cpu Raw Wave Join Date: Jan 2004 Location: SilverSpring Maryland Posts: 2,957	Thats interesing... The m_header member isn't even used in the plug-in other then to initialize it so it should always be 0. Maybe its the type declaration in VB? Have you looked at the values for m_Data in the packet prior to calling API_OBDII_Mode1_GetPacket and seeing if they are actually changed by the function call to see if the 205s are getting set by the plug-in or just garbage values that are in your varible to begin with? Also, this shouldn't make a difference, but try using this packet type and see if you get better results: Code: Type API_OBDII_MSGPACKET m_dwTimeRecieved As Long m_iNumDataBytes As Byte m_Header1 As Byte m_Header2 As Byte m_Header3 As Byte m_Data1 As Byte m_Data2 As Byte m_Data3 As Byte m_Data4 As Byte m_Data5 As Byte m_Data6 As Byte m_Data7 As Byte End Type __________________ StreetDeck.com Developer (I am Chuck) Get StreetDeck at http://www.streetdeck.com The Official StreetDeck Forums have moved, please visit us at http://www.streetdeck.com/forum for official support for Streetdeck. Last edited by god_of_cpu; 09-14-2004 at 10:39 AM.