pairs of IQ should be concatenated before fifo had?

I'm trying to understand the 'Xcvr (FPGA) .vi Streaming' vi which is located in the BasicTX_BasicRX project. This is the example that does everything on the fpga and works with the 310 x (I hope). If I understand each 16-bit pair IQ is concatenated in a 32-bit integer before being sent to a FIFO. Is there a reason I can't use 2 16-bit FIFO? Is there a risk that they might fall out of sync relative to each other if they are in the same timed loop? It would certainly be easier to read.

apchar,

I'm not familiar with the BasicTX_BasicRX project, but if it is based on the USRP Simple streaming project, then Yes, you can divide your IQ samples (and channels) into FIFOs separated without any problems of consistency. You need to change your host code to fetch multiple FIFOs, but you will not have to worry of their "falling out of sync with eachother.

Tags: NI Products

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