Programming on the VMEbus with Xembedded Part 2. XVMEStat in VMEman.

Programming on the VMEbus with Xembedded

Part 2. XVMEStat in VMEman.

This week let’s talk a little about the Status function in our board support package. This is an application within the XVME-984 software support library that allow a user to look at the module IDs on the VMEbus. This includes our processor boards and any Input/Output modules on the VMEbus.

XVMEstat is a 32-bit menu-driven Windows application that displays the contents of the PC/AT status registers module type, system resource, master/slave interface information, VMEbus ownership, and front panel LED information.

XVMEstat Window

The XVMEstat window is automatically updated every second (default). Select the Timer… option from the Configure menu to change this update rate. You can force an immediate read of the status registers by selecting the Read option in the menu bar.

Figure 4-1. XVMEstat window

Clicking the icon in the window title bar or right-clicking anywhere in the title bar will open the System menu, which will allow you to size or close the window.

Figure 4-2. System menu

Configure Menu

This section describes the menu options associated with the Configure Menu.

Figure 4-3. XVMEstat Configure menu

Configure->Timer

This menu option opens a dialog for configuration of the time interval for reads and writes. The two choices are:

• The default option, Time (ms), enables the operating system to send a WM_TIMER message to the application at periodic intervals. The default value is 1000 milliseconds.
• The Continuous option generates continuous reads or writes.

Figure 4-4. Configure->Timer

Configure->Title

This menu option opens a dialog that allows you to change the window title.

Figure 4-5. Configure->Title

View Menu

This section describes the menu options associated with the View menu. If your Xembedded CPU board only supports four master and four slave images, the Master Interface (5-8) and Slave Interface (5-8) options will not be available and the other options will be Master Interface and Slave Interface.

Figure 4-6. XVMEstat View menu

View->General

This menu option selects general information to be displayed. This is the view seen when the XVMEstat window is first opened. Note the processor module model number is displayed along with information about the system resource controller (see part 1 for this information), the Bus Request Level being used, the request mode and release mode. You can also see the display of the front panel lights, these can be set or reset in the VMEman monitor functions (see last weeks Part 1).

Figure 4-7. General View

View->Master Interface

This menu option displays information related to the master interface. There are two master interface windows, one for images 1-4 and one for images 5-8. If your XVME CPU board only supports four master images, there will be only one window, for images 1-4.

Figure 4-8. Master Interface View

View->Slave Interface

This menu option displays information related to the slave interface. There are two slave interface windows, one for images 1-4 and one for images 5-8. If your XVME CPU board only supports four slave images, there will be only one window, for images 1-4.

Figure 4-9. Slave Interface View

View->Interrupts

This menu option selects information related to VMEbus and Auxiliary interrupts to be displayed.

Figure 4-10. Interrupts View

Read Menu Command

This function performs an immediate read of the XVME PC/AT status registers and updates the display.

Help Menu

This menu lets you access the BSP help file and the About XVMEstat window, which displays version information for the XVMEstat executable.

As you can see this XStat function in our VMEman product can be very helpful in understanding your current setup and how those actions are programmed.

Feel free to send your questions to support@xembedded.com.

Related posts:

1. Programming on the VMEBus with Xembedded Series