Vivado infer block ram. v // Initializing Block RAM (Single-Port Block RAM) // File: rams_sp_rom module rams_sp_rom (clk, we, addr, di, dout); input clk; input we; input [5:0] addr; input [19:0] di; output [19:0] dout; reg [19:0] ram [63:0]; reg [19:0] dout; initial begin ram [63] = 20'h0200A; ram [62] = 20'h00300; ram [6 May 25, 2022 · How can I see if Vivado 2021. Additionally, Dual Port RAMs are commonly turned into FIFOs, which are probably one of the most common use-cases for Block RAM on an FPGA. 1 inferred block ram instead of distributed ram for the reg_crypt_public_key array? Block rams are reported in the synthesis log. Sep 23, 2021 · The following Answer Record points you to information on how to infer block RAM and FIFO primitives in your HDL code. If BRAMs are inferred there will be a section detailing what parts of the HDL produced which BRAMs of how many ports, width, etc. Oct 1, 2023 · I was curious about when Vivado would infer BRAM and when it would not, so I put together a minimal design meant to exercise the synthesis process. The first one is when an extra register exists on the output, and the secon May 29, 2025 · When inferring RAM, AMD recommends that you use the HDL Templates provided in the Vivado tools. I have the following Verilog code for a RAM module: module RAM_param(clk, addr, read_write, clear, data_in, Aug 9, 2019 · 2 Unfortunately, the synthesis tool vendors have made the RAM inference functions so that they typically recognize both styles, regardless of the physical implementation of the RAM in the FPGA in question. 1 English Introduction Navigating Content by Design Process Vivado Synthesis Synthesis Methodology Using Synthesis Using Synthesis Settings Tcl Commands to Get Property Creating Run Strategies Setting Synthesis Inputs Controlling File Compilation Order Defining Global Include Files RTL Linter Running the Linter Linter Output Linter with Nov 29, 2023 · AMD recommends that the memory and the output registers are all inferred in a single level of hierarchy, because this is the easiest method to ensure inference is as intended. 2 English Vivado Design Suite User Guide: Synthesis Vivado Synthesis Introduction Synthesis Methodology Using Synthesis Using Synthesis Settings Tcl Commands to Get Property Creating Run Strategies Saving a User Defined Strategy Setting Synthesis Inputs Controlling File Compilation Order Defining Global Include Files Running Synthesis Jun 11, 2025 · Memory inference capabilities include the following: Support for any size and data width. 65yhephe ib gjhrrxgm bl ek4sb 2rrj5l kre5qc kc3pth0np 7gkx g9s