FPGA VAX update, now DIY TTL computers

Chuck Guzis cclist at sydex.com
Thu Nov 3 18:21:06 CST 2005


On 11/3/2005 at 5:16 PM Kevin Handy wrote:

>Parity depends on if you would prefer a crash to silently generating
>incorrect results.

(Insert favorite (perhaps apocryphal) Seymour Cray quote here)

>ECC tries to hide the errors, but can still cause a crash if too many
>bits change.

We used to call it SECDED for exactly that reason.  But if you're suddenly
encountering multiple bit errors where you had no errors previously, you've
got bigger problems.

Cheers,
Chuck






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