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- changed frequencies into MHz units (real data type)

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git-svn-id: http://moon:8086/svn/vhdl/trunk@734 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2010-02-09 07:50:27 +00:00
parent 385aa5e008
commit 0c50e933f8
19 changed files with 161 additions and 144 deletions
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lib/SDRAM/ddr_sdr_v1_5/src/sdram_cmd.vhd
+7 -7
View File
@@ -31,8 +31,8 @@ use work.sdram_types.all;
entity sdram_cmd is
Generic
(
f_sdrclk_hz : natural := 100E6;
BL : natural := 2
f_sdrclk : real := 100.0;
BL : natural := 2
);
Port
(
@@ -73,13 +73,13 @@ architecture behaviour of sdram_cmd is
( SD_DESELECT => (0 ),
SD_NOP => (0 ),
SD_LMR => (TMRD-1 ),
SD_ACT => (to_cycles(TRCD, f_sdrclk_hz)-1),
SD_ACT => (to_cycles(TRCD, f_sdrclk)-1),
SD_READ => (TCAS-1 ),
SD_WRITE => (to_cycles(TWR, f_sdrclk_hz)-1),
SD_PRE => (to_cycles(TRP, f_sdrclk_hz)-1),
SD_WRITE => (to_cycles(TWR, f_sdrclk)-1),
SD_PRE => (to_cycles(TRP, f_sdrclk)-1),
SD_BST => (0 ),
SD_AR => (to_cycles(TRFC, f_sdrclk_hz)-1),
SD_SR => (to_cycles(TRFC, f_sdrclk_hz)-1)
SD_AR => (to_cycles(TRFC, f_sdrclk)-1),
SD_SR => (to_cycles(TRFC, f_sdrclk)-1)
);
begin