StrobeReads

Online Development Notebook > Index > ODN > USBm DLL Programming > Device Commands > StrobeReads

StrobeReads

VERSION 1.34+ of the firmware, VERSION 42+ of the DLL

Description:

Strobe read of a 1 to 6 byte value from a port. This command uses port A or B for the byte read, as well as a polarity (negative or positive) and a line (A.0 - B.7) to toggle based on the previously executed StrobeWrite or StrobeRead call.

Command Syntax: (USBm.dll)

USBm_StrobeReads(device, count, data)

The USBm_StrobeReads function syntax has these parts:

Part	Description
device	A zero-based index to address the appropriate USB device.
count	The number of bytes (1-6) to receive.
data	Received data.

Remarks:

Control this command's port for the byte, polarity and strobe line by using the StrobeWrite or StrobeRead call.

VB Declaration

Public Declare Function USBm_StrobeReads _
    Lib "USBm.dll" _
        (ByVal device As Byte, _
        ByRef count As Byte, _
        ByRef data As Byte) _
    As Integer

VB Example

Dim dataarray(6) As Byte
dataarray(0) = &H55
USBm_SPIMaster 6, 4, dataarray(0)

Control this command's port for the byte, polarity and strobe line by using the StrobeWrite or StrobeRead call. This command will then use the same selected port, polarity, and strobe line to read four bytes from device number six and store in dataarray.

C Example

-TBD-

Hardware: U401 USB Interface U421 USB Interface

Programming: USBm DLL Programming Download Files

Application Notes: U4x1 Application Notes Misc Applications and Information FAQ