Changing the order of devices on the scan chain

For a traditional JTAG configuration, the devices must be in added the correct order in relation to debug hardware TDI and TDO. If you have added devices in the wrong order, then you can change the order.

To change the order of devices on the scan chain:

  1. Select the Devices node in the tree diagram.

  2. In the scan chain schematic diagram, select the device you want to move.

  3. Click:

    • Move Left to move the device to the left

    • Move Right to move the device to the right.

Note

The ordering of CoreSight devices on the same Debug Access Port (DAP) is not important.

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