From 686f37aab33fb3fee1ef625d88a2cbd58c589715 Mon Sep 17 00:00:00 2001
From: Piotr Miedzik <P.Miedzik@gsi.de>
Date: Wed, 18 Nov 2015 11:07:09 +0100
Subject: [PATCH] wb_slave_adapter: fixed FSM
---
modules/wishbone/wb_slave_adapter/wb_slave_adapter.vhd | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/modules/wishbone/wb_slave_adapter/wb_slave_adapter.vhd b/modules/wishbone/wb_slave_adapter/wb_slave_adapter.vhd
index 921ffe1c..5fc7b102 100644
--- a/modules/wishbone/wb_slave_adapter/wb_slave_adapter.vhd
+++ b/modules/wishbone/wb_slave_adapter/wb_slave_adapter.vhd
@@ -170,11 +170,11 @@ begin -- rtl
else
case fsm_state is
when IDLE =>
- if slave_in.stb ='1' and master_in.stall='0' and master_in.ack='0' then
+ if slave_in.stb ='1' and slave_in.cyc = '1' and master_in.stall='0' and master_in.ack='0' then
fsm_state <= WAIT4ACK;
end if;
when WAIT4ACK =>
- if master_in.ack='1' then
+ if (slave_in.stb = '0' and slave_in.cyc = '0') or master_in.ack='1' then
fsm_state <= IDLE;
end if;
end case;
--
GitLab