Host Engineering Forum

General Category => Ethernet SDK => Topic started by: chrisatwan on August 12, 2011, 11:16:00 AM

Title: visual basic Dll
Post by: chrisatwan on August 12, 2011, 11:16:00 AM

I was trying another way of skinning a cat. I have the SDK working in VB6 so thought of creating a VB6 Dll for the SDK. However I am not able to connect to and ECOM module. I can network initiate and scan network with success but can not connect. Is there any thing that can cause problem with this in ActiveX Dll:

    Public Declare Function PASCAL_HEIOpenDevice Lib "hei_pas" ( _
        ByRef pTransport As HEITransport, _
        ByRef pDevice As HEIDevice, _
        ByVal HEIAPIVersion As Integer, _
        ByVal TimeOut As Integer, _
        ByVal Retrys As Integer, _
        ByVal UseAddressedBroadcast As Boolean _
    ) As Long


Thanks,
Christopher

Title: Re: visual basic Dll
Post by: JMB on August 12, 2011, 02:38:07 PM

Hi Christopher,

That seems to match the definition in the samples.  What errors are you getting exactly?

Jacob

PS - I posted the updated EtherCCM sample if you want to give that a try now too.

Title: Re: visual basic Dll
Post by: chrisatwan on August 12, 2011, 10:21:42 PM

Jacob,

I was able to get the Dll to connect and it finds the ECOM module. The problem now is the CCM_ProcessCommand function. At first the line:

    rc = PASCAL_HEICCMRequest(aDevices(tDevice), bWrite, CCM_DataType, DataAddress, DataLength, ByteBuffer(0))

Would cause the program to crash. I removed line and just put rc=0 for testing purposes. However If I do a register read or write I don't get errors but I am also unable to read value back from register or write to it. It is like I am not actually connected to ECOM even though I was able to find it. I have code to share if anyone wants to see it.

Thanks,
Christopher