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data_offload: Fix m_axis output stability issue 

Signed-off-by: David Winter <david.winter@analog.com>
main
David Winter 2021-05-03 08:57:49 +02:00 committed by Mihaita Nagy
parent 2b55c7453b
commit 58953ff40d
2 changed files with 9 additions and 3 deletions
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5
library/common/ad_axis_inf_rx.v
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@ -52,7 +52,9 @@ module ad_axis_inf_rx #(
output reg inf_valid = 1'b0, output reg inf_valid = 1'b0,
output reg inf_last = 1'b0, output reg inf_last = 1'b0,
output reg [(DATA_WIDTH-1):0] inf_data = {DATA_WIDTH{1'b0}}, output reg [(DATA_WIDTH-1):0] inf_data = {DATA_WIDTH{1'b0}},
input inf_ready); input inf_ready,
output int_not_full);
// internal registers // internal registers
@ -126,6 +128,7 @@ module ad_axis_inf_rx #(
// read interface // read interface
assign inf_ready_s = inf_ready | ~inf_valid; assign inf_ready_s = inf_ready | ~inf_valid;
assign int_not_full = inf_ready_s;
always @(rcnt or wlast_0 or wdata_0 or wlast_1 or wdata_1 or always @(rcnt or wlast_0 or wdata_0 or wlast_1 or wdata_1 or
wlast_2 or wdata_2 or wlast_3 or wdata_3 or wlast_4 or wdata_4 or wlast_2 or wdata_2 or wlast_3 or wdata_3 or wlast_4 or wdata_4 or

7
library/data_offload/data_offload.v
View File

@ -186,6 +186,8 @@ module data_offload #(
wire src_wr_last_int_s; wire src_wr_last_int_s;
wire [31:0] src_wr_last_beat_s; wire [31:0] src_wr_last_beat_s;
wire int_not_full;
assign src_clk = s_axis_aclk; assign src_clk = s_axis_aclk;
assign dst_clk = m_axis_aclk; assign dst_clk = m_axis_aclk;
@ -258,7 +260,7 @@ module data_offload #(
end end
endgenerate endgenerate
assign fifo_dst_ready_int_s = fifo_dst_ready & m_axis_ready; assign fifo_dst_ready_int_s = fifo_dst_ready & int_not_full;
assign fifo_src_wdata = s_axis_data; assign fifo_src_wdata = s_axis_data;
assign fifo_dst_ren = dst_mem_valid_s; assign fifo_dst_ren = dst_mem_valid_s;
@ -274,7 +276,8 @@ module data_offload #(
.inf_valid (m_axis_valid_s), .inf_valid (m_axis_valid_s),
.inf_last (m_axis_last_s), .inf_last (m_axis_last_s),
.inf_data (m_axis_data_s), .inf_data (m_axis_data_s),
.inf_ready (m_axis_ready)); .inf_ready (m_axis_ready),
.int_not_full(int_not_full));
assign m_axis_valid = (dst_bypass_s) ? valid_bypass_s : m_axis_valid_s; assign m_axis_valid = (dst_bypass_s) ? valid_bypass_s : m_axis_valid_s;
assign m_axis_data = (dst_bypass_s) ? data_bypass_s : m_axis_data_s; assign m_axis_data = (dst_bypass_s) ? data_bypass_s : m_axis_data_s;