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AD9122 FIFO

Question asked by zhipeng on Jul 30, 2014
Latest reply on Jul 31, 2014 by rejeesh

I am using the reference design and no-OS driver.

I am running the system with "dac_dma_setup(fmcSel)" instead of "dds_setup(fmcSel, 1000000, 1000000)"

 

If I read 0x12 of AD9122 from time to time, it is always 0x43;

If I read 0x18 of AD9122 from time to time, it is always 0x01;

If I read 0x19 of AD9122 from time to time, it jumps among a few different values wildly.

 

What is the procedure to modify the reference design and ensure a proper FIFO operation?

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