Fixed an issue where the "RESPONSE_READ" was skipped.

Issue occurred when "wb.ack" became active in the same cycle as "wb.stall" became inactive. The "RESPONSE_READ" state was skipped and therefore a proper handshake with the axilite bus wasn't guaranteed.

Fixed an issue where the "RESPONSE_READ" was skipped.
Issue occurred when "wb.ack" became active in the same cycle as "wb.stall" became inactive. The "RESPONSE_READ" state was skipped and therefore a proper handshake with the axilite bus wasn't guaranteed.
074d4468 · Pascal Bos · Tristan Gingold · 1621d6d1 · 074d4468
Commit 074d4468 authored May 12, 2022 by Pascal Bos Committed by Tristan Gingold Oct 10, 2022
Hide whitespace changes
Inline Side-by-side

Showing with 1 addition and 1 deletion

xwb_axi4lite_bridge.vhd modules/wishbone/wb_axi4lite_bridge/xwb_axi4lite_bridge.vhd +1 -1

No files found.
--- a/modules/wishbone/wb_axi4lite_bridge/xwb_axi4lite_bridge.vhd
+++ b/modules/wishbone/wb_axi4lite_bridge/xwb_axi4lite_bridge.vhd
@@ -109,7 +109,7 @@ begin
            if (wb_master_i.stall = '0') then
              wb_master_o.stb <= '0';
              if (wb_master_i.ack = '1') then
-                state <= IDLE;
+                state <= RESPONSE_READ;
                axi4_slave_o.RRESP <= c_AXI4_RESP_OKAY;
                axi4_slave_o.RDATA <= wb_master_i.dat;
                axi4_slave_o.RVALID <= '1';