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Altera_Forum
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14 years ago

Design Size and the timing accuracy

Dear Sir, I've met one problem. It is about the design size and timing accuracy. If I have a design which used up the FPGA 95% or above LEs, is it going to have some I/Os having worse tim...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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Dear GPK,

Thanks for your explaination. The problem was found in a project which uses a FPGA MAXII micro to drive an external a LCM through an I2C interface designed via the I/Os. I've tried several times. When the design size larger,

the timing of output signal is going to be wrong. For some test pins, even

the outputs are incorrect. I feel strange. Thus, I think the problems were

caused by the limited resource in the FPGA.

:)

Regards,

Peter Chang

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Hi Peter,

is it possible that you post your project ?

Kind regards

GPK