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ID: 1978
Case Type: faq
Category: Device Programming
Related To: Customer Board
Family: All Devices

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What types of JTAG multi chain designs does the Lattice ispVM System software support? 

The Lattice ispVM System software supports multi-chain BSCAN2 designs as described in the application notes AN8081 and AN8083 at:

For other types of multi-drop JTAG designs, third party tools have been shown to be of help to connect the Lattice programmer software to Lattice devices in the system, such as those provided by Goepel Electronics, Ltd. Other companies such as JTAG Technologies may also provide solutions. Lattice does not provide support for third party tools, so if there are questions about those tools, please contact the vendors directly to discuss their JTAG solutions.