The block is performing some signal processing on incoming samples streaming from a radio block, but the signal processing is based on the data stored in the ram. It would be ideal to be able to swap out the RAM while the block is streaming, though loading it once at start is better than what we have now.
This is a good suggestion, however in the meantime to get it loaded more quickly at the start. It seems if it was feasible, having a second AXI stream interface would be cleaner, but I don't know if it's possible. On Wed, Dec 19, 2018 at 3:00 PM Brian Padalino <bpadal...@gmail.com> wrote: > On Wed, Dec 19, 2018 at 12:53 PM J M via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> Hi, >> >> I'm trying to load a RAM inside an RFNoC block, and doing this via >> register writes takes about a minute and half. >> >> So, looking for a quicker way to load up the data from the RAM, thought >> about a second input to the RFNoC block and source it from the file. In >> this way, the RFNoC block would have two inputs, one which would be source >> from the radio block, and the second from file, but the file would only run >> through once to load the RAM. >> >> Unfortunately, I haven't found any RFNoC examples that have 2 inputs that >> are not tied together (such as the add/sub block). Does anyone know of a >> good example of doing this through RFNoC, or if it is even possible? Or is >> there another mechanism for sending a bunch of data across that I'm >> overlooking? >> > > Can you describe the life cycle of your block for us a little bit in more > detail? > > If you are loading RAM once and only once before starting any streaming, > you could potentially use a register to choose which mode you are in, and > then the incoming stream can be pushed to RAM, then the register is cleared > once you are sure there is nothing more to write into RAM. Unfortunately, > without knowing more about your life cycle and how you intend to use the > block, I am not sure the above suggestion would actually work. > > Brian >
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