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Registered Member #1143
Joined: Sun Nov 25 2007, 04:55PM
Location: Vilnius, Lithuania
Posts: 721
Hello, For the fun i try to write and test all USB 3.0 functions from D3xx library.
So far get number of devices and was able to open and get handle. Now i want to toggle GPIO to see how much speed i can get between transfers. Because in my original program if i can't get faster than 1ms between transfers ( very short ones ) I will use FT232 in MPSSE mode that can be connected directly to ARM.
Problem i am facing is something wrong with my call or definition of function, can any one spot the problem ?
Private Declare Function FT_EnableGPIO Lib "C:\FTD3XX.dll" Alias "FT_EnableGPIO" (ByVal pftHandle As ULong, ByValMask As ULong, ByValDir As ULong) As Integer
And i call it like this:
Private ftHandle As Integer = 0 Private ftStatus As Integer = 0 Dim Flags As UInt32 = &H10
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USB 3.0 Programming in VB (simple question regarding calling functions)
