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Honored Contributor
Honored ContributorCan an FPGA partially fail? (EPM7128SLI84-10)
Hi All, I have a production run of 110 plug in modules that each use a single EPM7128SLI84-10, two of these devices are suspected of failing as the modules show exactly the same fault in that 8...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- Hi Thanks for the reply which we will try. When you say failure - do you mean physical failure or functional failure? The LEDs are driven by a simple latch circuit which does not operate at any great speed, nor does the FPGA do anything really 'clever'. There is a push button that clears the latch, so even if it was set by a timing issue the button should clear it. This button is one of the working features as it connects through the FPGA to a diagnostic LED which works OK. Cheers James --- Quote End --- I meant functional failure of its switch logic due to timing failure. If indeed it is a latch (unclocked) then that is not recommended and is better changed clocked logic s that it can be checked correctly by timing tool.
