Alas, there seems to be no such System Generator FIFO block with different input output widths. The FIFO block I provide has been used for a few years now in our beamformers, but assumes a careful user.
On Fri, Apr 26, 2019 at 8:15 PM David MacMahon <[email protected]> wrote: > I thought that system generator included a FIFO block with different input > output widths. As I recall, the only tricky parts were ensuring that the > overall input/output throughputs are commensurate (true for any FIFO, > really) and, for cases with input 2x wider than output, ensuring that the > input is “half-word swapped” appropriately so that the output stream is > properly ordered. > > Maybe I’m thinking of the dual port BRAM block that can easily be coerced > to act as a FIFO? > > HTH (despite the lack of actionable details), > Dave > > > On Apr 25, 2019, at 14:28, Jack Hickish <[email protected]> wrote: > > > > Hi Indrajit, > > > > I'm surprised that the Xilinx FIFO block doesn't give the option of > > having ports of two different widths. However, if it doesn't, the > > easiest thing to do might be to use a dual port RAM, which does allow > > the two interfaces to have different widths. If you can explain a bit > > more about what you're trying to achieve someone may already have a > > solution (for example, lots of designs have logic to turn N-bit data > > streams into 64-bit streams which can be used to feed the 10GbE > > block). > > > > Cheers > > Jack > > > >> On Thu, 25 Apr 2019 at 06:53, Indrajit Barve <[email protected]> > wrote: > >> > >> Hello all, > >> > >> I would like to implement a FIFO with input port data type depth and > width of 2048 X 32 and output port data type 1024 X 64. Basically looking a > similar module like this > https://www.xilinx.com/support/documentation/application_notes/xapp261.pdf > . or how to implement / configure Data-Width Conversion for a FIFO on > ROACH1 . > >> > >> Thanks > >> Indrajit > >> > >> -- > >> You received this message because you are subscribed to the Google > Groups "[email protected]" group. > >> To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected]. > >> To post to this group, send email to [email protected]. > > > > -- > > You received this message because you are subscribed to the Google > Groups "[email protected]" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected]. > > To post to this group, send email to [email protected]. > > -- > You received this message because you are subscribed to the Google Groups " > [email protected]" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > -- You received this message because you are subscribed to the Google Groups "[email protected]" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected].
