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What does setting PPI_DELAY = 0x0000 do?

Question asked by MattZ on Jun 8, 2017
Latest reply on Aug 11, 2017 by Jithul_Janardhanan

Hi All,

 

According to the ADSP-BF537 Blackfin Processor Hardware Reference page 7-34 "It contains a count of how many PPI_CLK cycles to delay after assertion of PPI_FS1 before starting to read in or write out data."

 

I'd like a delay of 0, but the document says that "reset = 0x0000". So what does `PPI_DELAY = 0x0000;` actually do? What is the correct setting for a delay of 0?

 

FYI, I'm using a BF537, but I expect this probably applies to many BF chips.

 

Thanks in advance.

 

-Matt

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