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- removed constants from sdram_types.vhd and put them to sdram_const.vhd

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- define burst length in sdram_config

git-svn-id: http://moon:8086/svn/vhdl/trunk@1223 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2015-05-25 07:25:49 +00:00
parent 0a90acac6d
commit 5427d4cae0
12 changed files with 85 additions and 47 deletions
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lib/SDRAM/ddr_sdr_v1_5/src/sdram_ctrl.vhd
+3 -4
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@@ -25,6 +25,7 @@ library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.numeric_std.ALL;
use work.sdram_const.all;
use work.sdram_config.all;
use work.sdram_types.all;
use work.utils_pkg.all;
@@ -55,8 +56,6 @@ end sdram_ctrl;
architecture behaviour of sdram_ctrl is
constant LMR_BURST_LEN : natural := NextExpBaseTwo(BURST_LEN);
type ctrl_state_t is (RESET, POWER_WAIT, INIT, INIT_WAIT, USER_READY, USER_WRITE_PRE, USER_WRITE_ACT, USER_WRITE, USER_READ_PRE, USER_READ_ACT, USER_READ, REFRESH_PRE, REFRESH);
signal st_ctrl, st_ctrl_next : ctrl_state_t;
@@ -129,7 +128,7 @@ architecture behaviour of sdram_ctrl is
),
(
cmd => SD_LMR,
mode_word => to_unsigned(LMR_REG_BASE, 2) & to_unsigned(LMR_OP_RES_DLL, 6) & to_unsigned(LMR_CL2, 3) & '0' & to_unsigned(LMR_BURST_LEN, 3),
mode_word => to_unsigned(LMR_REG_BASE, 2) & to_unsigned(LMR_OP_RES_DLL, 6) & to_unsigned(LMR_CL2, 3) & '0' & to_unsigned(LM_BL_CURR, 3),
wait_cycle => 200
),
(
@@ -169,7 +168,7 @@ architecture behaviour of sdram_ctrl is
),
(
cmd => SD_LMR,
mode_word => to_unsigned(LMR_REG_BASE, 2) & to_unsigned(LMR_OP_NORMAL, 6) & to_unsigned(LMR_CL2, 3) & '0' & to_unsigned(LMR_BURST_LEN, 3),
mode_word => to_unsigned(LMR_REG_BASE, 2) & to_unsigned(LMR_OP_NORMAL, 6) & to_unsigned(LMR_CL2, 3) & '0' & to_unsigned(LM_BL_CURR, 3),
wait_cycle => 200
),
(