Dataman 770 Series - Manual (Page 15)

Development kit for DATAMAN 770 series
Programmer’s Guide
3.2.2. InitHardware
Initializes device. After successful call of this function, the device can be used.
Public Declare Function InitHardware Lib "m770drvdk.dll" (ByRef CalibOK
As Byte) As Long
Parameters:
CalibOK – this variable will be filled with information whether the calibration data in
the device is ok
1 – calibration data are ok
0 – calibration data in the device are broken
Return value:
ERROR_OK – device was initialized successfully
ERROR_UNABLE_TO_LOAD_EM77X – unable to load em77x driver
ERROR_INIT_FAILED – device initialization failed (one of the reason can be,
that the device isn’t connected)
ERROR_FPGA_CONFIG_FAILED – FPGA initialization failed
ERROR_DK_NOT_ENABLED – the DK isn’t enabled in the connected device
ERROR_DRIVER_NOT_LOADED – the driver m770drv.dll wasn’t loaded
before this call (use LoadDriver function to load it)
3.2.3. GetDeviceList
Obtains the list of the connected devices. This function is used when several 770
oscilloscopes are connected.
Public Declare Sub GetDeviceList Lib "m770drvdk.dll" (ByRef DevList As
Long)
Parameters:
DevList – array with length of 16, which is filled with the serial numbers of the found
devices
Return value: -
3.2.4. InitHardwareFromList
Initializes selected device. This function is used when several 770 oscilloscopes are
connected. After successful call, the active device can be selected by UseDevice
function.
Public Declare Function InitHardwareFromList Lib "m770drvdk.dll" (ByVal
index As Long, ByRef CalibOK As Byte) As Long
Parameters:
index – indicates device index from the list (obtained by GetDeviceList function)
CalibOK – this variable will be filled with information whether the calibration data in
the device are ok
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