fpga: lib: Fix simulation of axi_fir_filter

The always(*) block was never executing in some simulators because
there were no signals on the right-hand side in the block. Changing it
to an initial block ensures it always runs.

1 files changed, 1 insertions, 1 deletions

diff --git a/fpga/usrp3/lib/rfnoc/axi_fir_filter.v b/fpga/usrp3/lib/rfnoc/axi_fir_filter.v
index 4fffab8af..7efa60a97 100644
--- a/fpga/usrp3/lib/rfnoc/axi_fir_filter.v
+++ b/fpga/usrp3/lib/rfnoc/axi_fir_filter.v
@@ -116,7 +116,7 @@ module axi_fir_filter #(
       end
     // Coefficients are static
     end else begin
-      always @(*) begin
+      initial begin
         for (k = 0; k < NUM_SLICES; k = k + 1) begin
           coeffs[k]      <= COEFFS_VEC[COEFF_WIDTH*k +: COEFF_WIDTH];
           coeff_load_stb <= 1'b1;