- minor bugfix with read counter

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git-svn-id: http://moon:8086/svn/vhdl/trunk@984 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
2013-07-21 09:21:17 +00:00
parent 9ff2d32370
commit 8054829fcc
+3 -3
View File
@@ -1,5 +1,5 @@
----------------------------------------------------------------------- -----------------------------------------------------------------------
-- $Header: /tmp/cvsroot/VHDL/lib/JBUS/src/busmaster_sync.vhd,v 1.4 2013-07-21 09:10:13 jens Exp $ -- $Header: /tmp/cvsroot/VHDL/lib/JBUS/src/busmaster_sync.vhd,v 1.5 2013-07-21 09:21:17 jens Exp $
----------------------------------------------------------------------- -----------------------------------------------------------------------
library IEEE; library IEEE;
use IEEE.STD_LOGIC_1164.ALL; use IEEE.STD_LOGIC_1164.ALL;
@@ -123,9 +123,9 @@ proc_bus_read_counter:
if rising_edge(clk) then if rising_edge(clk) then
if rst = '1' then if rst = '1' then
read_cnt <= 0; read_cnt <= 0;
elsif cmd_read_en = '1' and dout_re = '0' then elsif cmd_read_en = '1' and read_fifo_empty = '1' then
read_cnt <= read_cnt + 1; read_cnt <= read_cnt + 1;
elsif cmd_read_en = '0' and dout_re = '1' and read_fifo_empty = '0' then elsif cmd_read_en = '0' and read_fifo_empty = '0' and dout_re = '1' then
read_cnt <= read_cnt - 1; read_cnt <= read_cnt - 1;
end if; end if;
end if; end if;