Why do reads from my Altera® PLL Reconfig megafunction fail?

Description

When reads are performed from the Avalon®-MM slave port on the Altera® PLL Reconfig megafunction, the mgmt_waitrequest is not asserted correctly as specified in the Avalon Interface Specification (PDF), which will lead to the Avalon-MM master reading the incorrect data.

Resolution

A patch for Quartus® II 12.0sp2, 2.dp9d may be downloaded from the link below.

This patch must be installed after installing the dp9 patch available from the related solution "How do I address known software issues for Stratix® V, Arria® V, and Cyclone® V devices in the Quartus® II software version 12.0sp2?"

This problem is fixed in a 12.1sp1 version of the Quartus®II software, and the device patches to 12.0sp2.

• Quartus II 12.0sp2 Patch 2.dp9d for Windows
• Quartus II 12.0sp2 Patch 2.dp9d for Linux
• Quartus II 12.0sp2 Patch 2.dp9d Readme file

Related Articles

• How do I address known software issues for Stratix V, Arria V and Cyclone V devices in the Quartus II software version 12.0 SP2?