Article ID: 000084888 Content Type: Troubleshooting Last Reviewed: 03/23/2016

Why can’t I access the MAX 10 device via JTAG when the TDO pin is used as a user input pin in user mode?

Environment

  • Quartus® II Subscription Edition
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    Description

    Due to a known problem in the Quartus® Prime software, when the JTAGEN pin option is enabled for MAX® 10 devices, the JTAG TDO pin does not work in hardware when it is assigned as an input pin in user mode, even if the JTAGEN pin is pulled high in user mode. 

    The JTAG TDO pin works only when assigned as bidirectional or output pin in user mode.





    Resolution

    This problem is scheduled to be fixed in a future version of the Quartus Prime software.

    Related Products

    This article applies to 1 products

    Intel® MAX® 10 FPGAs

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