Other Parts Discussed in Thread: TDA2, AWR1243, PGA460
I am playing with the Cascade usecase in VisionSDK. I understand in a cascade setup, there will be multiple transceiver chips used. Thus, there will be more than 4 RX channels coming down to the IssCapture link as each transceiver chip outputs max 4 RX channels. My questions:
1. Will a single instance of the IssCapture link in this usecase processing chain capture all cascade chips RX channels? If so, how does time sync take place between the different RF chips?
2. What's the SelectLink in the Chain graph for? I don't understand the need for the SelectLink?
3. I see the need to parallel process in the FFT Link thus 4 copies of it are deployed. Does that mean this example assume only 4 RX channels (or single RF chip used)? I also notice the 4 FFT Links are processing in IPU0. Wouldn't this be much slower than if it's done in DSP? And since 4 FFTs are done in IPU0, does this mean 4 FFT threads are launched to handle the processing? Would it be wide to maybe take advantage of IPU1 and assign 2 FFT processing to it to balance the processing load? or Even assign 2 FFTs to DSP1 and 2 to DSP2 which will process even faster than IPUs?
Thank you,
--Khai