Creating an SVF or STAPL File

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To create an SVF or STAPL file, the File mode must be selected. A cable does not need to be connected because operations are not being performed on devices; all of the configuration information is written to the SVF or STAPL file.

Creating the chain

Before creating the SVF or STAPL file, the Boundary Scan chain must be created. Refer to the section on "Manually Creating the Chain" for the Boundary Scan Configuration Mode. The method of adding devices is the same as described in this section.

Selecting the Programming File

After the chain has been fully described, right-click on a blank area of the window and select Create SVF File or Create STAPL File (see Figure 5-17). This will bring up a window that enables you to select a name for your programming file and specify the location for this file. After selecting the name and location, the SVF or STAPL file is ready to be written to.

Figure 5-17 Selecting a SVF or STAPL File

Writing to an SVF or STAPL File

The process for writing to an SVF or STAPL file is identical to performing Boundary Scan operations with a cable. You can simply right-click on a device and select an operation. For instance, in Figure 5-18, the user right-clicked on the first device in the chain and will left-click on Get Device ID. The instructions that are necessary to perform a Get Device ID operation will then be written to the file. Figure 5-19 shows what the SVF file will look like after the Get Device ID operation is performed.

Figure 5-18 Selecting Boundary Scan Operation

Figure 5-19 SVF File That Gets a Device ID from the First Device in the Chain

Any number of operations can be written to an SVF or STAPL file. For instance, after selecting Get Device ID for the first device in the chain, you can select the second device in the chain and select the Program option. The instructions and configuration data needed to Program the second device will be added to the file.

After all the desired operations have been performed, right-click in a blank area of the window and select Close SVF File or Close STAPL File (See Figure 5-20). This will close the file so that no more information can be written to it.

Figure 5-20 Closing the SVF File

To add additional operations in the future, right-click and select Append to SVF File or Append to STAPL File.