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DRV2700EVM Issues

Richard Elmquist
Mastermind 45250 points

My customer cannot get the EVM to connect properly with their computer. The see the TI-HAptics-DRV2700EVM icon in control panel, but they keep getting an error message. The error message that the customer is seeing is shown in the attached jpeg image. The error message states that “Object reference not set to an instance of the object” and I am not sure what this means. Can you explain?

The whole error message is shown below:

ERROR message:

************** Exception Text **************

System.NullReferenceException: Object reference not set to an instance of an object.

   at PiezoControlConsole.HostWindow.toolStripConsole_DropDownOpening(Object sender, EventArgs e)

   at System.Windows.Forms.ToolStripDropDownItem.OnDropDownShow(EventArgs e)

   at System.Windows.Forms.ToolStripMenuItem.OnDropDownShow(EventArgs e)

   at System.Windows.Forms.ToolStripDropDownItem.ShowDropDownInternal()

   at System.Windows.Forms.ToolStripDropDownItem.ShowDropDown(Boolean mousePush)

   at System.Windows.Forms.ToolStripMenuItem.OnMouseButtonStateChange(MouseEventArgs e, Boolean isMouseDown)

   at System.Windows.Forms.ToolStripMenuItem.OnMouseDown(MouseEventArgs e)

   at System.Windows.Forms.ToolStripItem.HandleMouseDown(MouseEventArgs e)

   at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)

   at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)

   at System.Windows.Forms.ToolStrip.OnMouseDown(MouseEventArgs mea)

   at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)

   at System.Windows.Forms.Control.WndProc(Message& m)

   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)

   at System.Windows.Forms.ToolStrip.WndProc(Message& m)

   at System.Windows.Forms.MenuStrip.WndProc(Message& m)

   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)

   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)

   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

This also appeared in another E2E request (https://e2e.ti.com/support/other_analog/haptics/f/927/t/545095), but there was no resolution shown.

Thanks for your help with this!

Richard Elmquist