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AR# 46791

Spartan-6 FPGA Design Assistant - Troubleshoot Common Fabric Problems


This Answer Record helps guide you to solutions to common problems with the fabric resources inSpartan-6FPGAdesigns.

NOTE:This Answer Record is part of the XilinxSpartan-6FPGA Solution Center(Xilinx Answer 44744).The XilinxSpartan-6FPGASolution Center is available to address all questions related toSpartan-6devices. Whether you are starting a new design withSpartan-6FPGA or troubleshooting a problem, use theSpartan-6FPGA Solution Center to guide you to the right information.


Select from the following list of common fabric related problems. Each Answer Record helps guide you to a solution.
If you still have a problem after running through the suggestions, open up a WebCase through Xilinx Technical Support:


Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
44744 Spartan-6 FPGA Solution Center N/A N/A

Associated Answer Records

Answer Number Answer Title Version Found Version Resolved
46789 Spartan-6 FPGA Design Assistant - Troubleshooting N/A N/A
37349 Spartan-6, IODELAY2 - What is Fmincal and how is it affected by SDR and DDR data rates? N/A N/A
34313 Spartan-6 I/O Banking Rules - Output I/O Standard Restrictions N/A N/A
41356 Design Advisory for Lower Power Spartan-6 -1L Speed Grade - IODELAY2 Support Restricted to Tap 0 N/A N/A
42796 Spartan-6 - IODELAY2 How long does it take for BUSY to assert/de-assert? N/A N/A
39046 Spartan-6 IODELAY2 - Late Data Edge and Early Data Edge Timing Analysis N/A N/A
34541 Design Advisory for Spartan-6 FPGA Block RAM - 9K Block RAM Simple Dual Port (SDP) Data Width Restriction N/A N/A
44174 Design Advisory for techniques on properly synchronizing flip-flops and SRLs after startup N/A N/A
23228 Spartan-3/-3E/-3A/-6 BUFGMUX - What is the setup time for the select or enable signal of BUFGMUX? N/A N/A
40911 Spartan-6 What is the POR (Power on Reset) Threshold Voltage? N/A N/A
41083 Design Advisory for Spartan-6 IODELAY2 - IODELAY2 Data Rate and Corresponding Bit Error Rates for New Mask Revision Silicon N/A N/A
40221 Spartan-6 - For how long should the BITSLIP in the ISERDES be asserted? N/A N/A
39999 Design Advisory for Spartan-6 FPGA - 9K Block RAM Initialization Support N/A N/A
38408 Design Advisory for Spartan-6 - IODELAY2; Late and Early Edge Delays and Single Data Bit Corruption N/A N/A
37293 Spartan-6, IODELAY2 - Do all interfaces need to be constantly calibrated? If so, how often? N/A N/A
35783 Spartan-6 - How are the IODELAY2 tap delays calculated? N/A N/A
34617 Spartan-6 Phase Detector usage N/A N/A
34533 Design Advisory for Spartan-6 FPGA Block RAM - Address Space Overlap N/A N/A
34276 Spartan-6 FPGA - Can the IODELAY2 be used to delay an output in Variable Mode? N/A N/A
AR# 46791
Date Created 03/27/2012
Last Updated 02/07/2013
Status Active
Type General Article
  • Spartan-6 LX
  • Spartan-6 LXT