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How to avoid the interference of LCD in Altera FPGA?

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vlsicute

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Hi
I am designing a ipcore.My design works very fine.Problem is whenever I bring devices like LCD to the FPGA altera IC.The altera chips behaving wrong.In this case how to avoid the interference of LCD.I am using LVTTL.How to remove this practical problem.
vlsicute
 

Re: query in I/O

Are your design is working very fine on model or behaviour description ?
 

query in I/O

This case doesn't sound reasonable, since pure digital design is interfere-free from analog interfere like LCD radiation.
 

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