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Messages - rumburack

1
General discussion / Re: Using a hardware or software CRC with enhanced core PIC1
To be honest, I have no clue about how to avoid bit flipping ram. That’s why I want to see the discussion, I find the topic is quit interesting, hoping for some smalltalk and insights…. I hoped that someone here had first hand knowledge and could feed me with some web pointers or numbers about how often and where and when and such. :-)

I could think about some ideas how to solve the problem, but due to cluelessness…

* Shield the device. Put some layers of copper/whatever above the ram cells inside the IC? Like those reverse engineering protection stuff?
* Add external shielding? What to use? Create a chip with ECC cells, quite a different design…
* Why use CRC when error correcting software codes exist? (use some memory for a correction map and have a way more useful solution).
* Run two microcontrollers in parallel and sync/compare them somehow?
* If I create something that flies to the moon or carries PAX around, how much cost is acceptable?

All this seems more reliable to me than CRC with still sitting on 0,4% misses.

(Just a copy of my last blog comment.)

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