Article ID: 000084127 Content Type: Troubleshooting Last Reviewed: 03/17/2023

Is reconfiguration of the VCO post-scale divider supported in the Quartus® II software?

Environment

    PLL
BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

Reconfiguration of the VCO post-scale divider is only supported in the Quartus® II software versions 13.0 and later via the PLL_RECONFIG Intel® FPGA IP.

 

Resolution

The address offset for the register that controls this setting is 011100. Writing a '0' sets a VCO divide value of 1. Writing a '1' sets a VCO divide value of 2.

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