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How to judge full flag?
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How to judge full flag?

lianquanta posted on 15 Mar 2012 12:22 AM PST
Senior Member
14 Forum Posts

 hi

I want to do Synchronous slave FIFO stopped with full flag,How to judge full flag?




Re: How to judge full flag?

aasi posted on 15 Mar 2012 04:44 AM PST
Cypress Employee
1073 Forum Posts

Are you talking about how to configure full flag

or

whether full flag or empty flag is to be used?

Regards,

Anand



Re: How to judge full flag?

lianquanta posted on 16 Mar 2012 10:42 PM PST
Senior Member
14 Forum Posts

Thank you, I think judgment sign  is full or empty  in the firmware program, don't know how to judge?



Re: How to judge full flag?

aasi posted on 16 Mar 2012 11:13 PM PST
Cypress Employee
1073 Forum Posts

When you're writing to FX3 you should be looking at full flag i.e. if the buffer is full you cannot write data to it.

When reading from FX3 you should be looking at empty flag i.e. if there is no data in the buffer you cannot read from it. Hope that answers your query.

Regards,

Anand



Re: How to judge full flag?

lianquanta posted on 16 Mar 2012 03:22 AM PST
Senior Member
14 Forum Posts

thank you !Similar" if((EP2468STAT&0x02))"such judgments






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