MPC5777C : To Retrieve Data from RFIFO

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MPC5777C : To Retrieve Data from RFIFO

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berat24
Contributor III

Hello everyone,

I have a new question again:)

Suppose that RFIFO0 was full and there was 6 different data there. I would like to learn how to retrieve 6 different data located in RFIFO0 at the same time.

Note :  I use RFPR register to retrieve 1 data from RFIFO as usual.

Thanks in advance to all the professionals and volunteers of this community.

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davidtosenovjan
NXP TechSupport
NXP TechSupport

RFIFO has a deep of 4 entries. So you cannot have pop 6 entries at once. It is needed to pop all results immendiately when stored in the RFIFO, ideally by eDMA, to the RQueue stored in the SRAM. RQueue may have custom defined size.

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davidtosenovjan
NXP TechSupport
NXP TechSupport

RFIFO has a deep of 4 entries. So you cannot have pop 6 entries at once. It is needed to pop all results immendiately when stored in the RFIFO, ideally by eDMA, to the RQueue stored in the SRAM. RQueue may have custom defined size.

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