From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Mon, 9 Mar 2015 11:45:46 +0000 (+0100)
Subject: liteeth: fix cnt_inc in IDLE state (we should wait sop to inc counter)
X-Git-Tag: 24jan2021_ls180~2501
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=360c849f21f4b976762a059ac34178e2a0affe77;p=litex.git

liteeth: fix cnt_inc in IDLE state (we should wait sop to inc counter)
---

diff --git a/misoclib/com/liteeth/mac/frontend/sram.py b/misoclib/com/liteeth/mac/frontend/sram.py
index 7df9c584..cb6a4d72 100644
--- a/misoclib/com/liteeth/mac/frontend/sram.py
+++ b/misoclib/com/liteeth/mac/frontend/sram.py
@@ -69,10 +69,10 @@ class LiteEthMACSRAMWriter(Module, AutoCSR):
 		self.submodules += fsm
 
 		fsm.act("IDLE",
-			inc_cnt.eq(sink.stb),
 			If(sink.stb & sink.sop,
-				ongoing.eq(1),
 				If(fifo.sink.ack,
+					ongoing.eq(1),
+					inc_cnt.eq(1),
 					NextState("WRITE")
 				)
 			)