From: Sebastien Bourdeauducq <sebastien@milkymist.org>
Date: Sun, 14 Jul 2013 22:57:37 +0000 (+0200)
Subject: lasmicon: fix FSM reset state with delayed_enter
X-Git-Tag: 24jan2021_ls180~2867
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d753c52225dd96870c6b0add837898a255ea8287;p=litex.git

lasmicon: fix FSM reset state with delayed_enter
---

diff --git a/milkymist/lasmicon/bankmachine.py b/milkymist/lasmicon/bankmachine.py
index eb6d338d..1bc5676d 100644
--- a/milkymist/lasmicon/bankmachine.py
+++ b/milkymist/lasmicon/bankmachine.py
@@ -93,8 +93,6 @@ class BankMachine(Module):
 		# Control and command generation FSM
 		fsm = FSM()
 		self.submodules += fsm
-		fsm.delayed_enter("TRP", "ACTIVATE", timing_settings.tRP-1)
-		fsm.delayed_enter("TRCD", "REGULAR", timing_settings.tRCD-1)
 		fsm.act("REGULAR",
 			If(self.refresh_req,
 				NextState("REFRESH")
@@ -140,3 +138,5 @@ class BankMachine(Module):
 			track_close.eq(1),
 			If(~self.refresh_req, NextState("REGULAR"))
 		)
+		fsm.delayed_enter("TRP", "ACTIVATE", timing_settings.tRP-1)
+		fsm.delayed_enter("TRCD", "REGULAR", timing_settings.tRCD-1)
diff --git a/milkymist/lasmicon/multiplexer.py b/milkymist/lasmicon/multiplexer.py
index b19cd657..27978f94 100644
--- a/milkymist/lasmicon/multiplexer.py
+++ b/milkymist/lasmicon/multiplexer.py
@@ -149,8 +149,6 @@ class Multiplexer(Module, AutoCSR):
 		# Control FSM
 		fsm = FSM()
 		self.submodules += fsm
-		fsm.delayed_enter("RTW", "WRITE", timing_settings.read_latency-1)
-		fsm.delayed_enter("WTR", "READ", timing_settings.tWTR-1)
 		fsm.act("READ",
 			read_time_en.eq(1),
 			choose_req.want_reads.eq(1),
@@ -180,6 +178,8 @@ class Multiplexer(Module, AutoCSR):
 			steerer.sel[0].eq(STEER_REFRESH),
 			If(~refresher.req, NextState("READ"))
 		)
+		fsm.delayed_enter("RTW", "WRITE", timing_settings.read_latency-1)
+		fsm.delayed_enter("WTR", "READ", timing_settings.tWTR-1)
 		# FIXME: workaround for zero-delay loop simulation problem with Icarus Verilog
 		fsm.finalize()
 		self.comb += refresher.ack.eq(fsm.state == fsm.encoding["REFRESH"])