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Altera_Forum's avatar
Altera_Forum
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13 years ago

Issue with polling in Nios

Hi, I've got a custom component that produces some results from time to time, I want Nios processor to monitor the process by polling and whenever a result is produced, it is written to a exter...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

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&& is a logical AND, I think you are doing a bit mask so I would use one & instead.

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Yes! I new it but confused one & and two & (((

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Also I would declare data as a volatile variable to make sure the compiler doesn't attempt to optimize it away.

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I didn't know about this, so I thank You even more!

Here I just found an example with volatile variable to be used with polling.

It confirms Your words!

http://www.seomastering.com/wiki/volatile_variable