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Large Array Usage

Nick Pridham 9 years ago in IQANdesign • updated by Gustav Widén (System support) 9 years ago • 1

IQAN design 4.01: MD4 - 7" - The IQAN design manual indicates that large stored arrays can impact on utilisation. Is there any guidance or application experience for usage of large arrays. I am planning approx. 80 x 100 cell array channels.

Gustav Widén (System support) 9 years ago

One comment on this is that with 80 ARC channels, each with a size of 100 , you will not be able to use the property store value. The settings memory (FRAM) is 32 kB, and the amount available to the application is 29 kB. Ten array channels with size 100 takes and the property store value use about 4 kB of the settings memory. Using eighty of those would make you run out of the available settings memory.


If you only do not use the property store value, then the values are only stored in RAM, and that is less of an issue for an MD4. The most likely problem is the cycle utilization, but this is much harder to evaluate.

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