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JTAG scan when multiple devices are connected in a chain

24-May-2024

JTAG Chain scan functionality enables you to define IR/DR Prefix/Postfix values which could be entered in Hardware | CPU Options | JTAG. That is important when several devices are connected in a chain and you want to debug for example the second one.


Possible solution:

From winIDEA build 9.21.9 and newer:

1. Enable EVE scripting (number 27) via Help | Support | Log.

2. Select any CPU via Debug | Configure Session | SoCs that support JTAG.

3. From the main menu select Debug | Prepare to AttachwinIDEA displays     SoC DETACHED     in the status bar.

4. Open Hardware | Tools | Execute EVE Script and select JTAGSelect.cpp script which is located in the winIDEA SFR subfolder.

5. Press the Run button.

6. After a few seconds result of the scan is shown in the Progress window.



More resources in winIDEA Help

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