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changed write calibration pattern with high autocorrel stat

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Angelo Jacobo 2023-05-29 16:40:41 +08:00 committed by GitHub
parent 400a277cdc
commit a56e6a8a24
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 3 deletions
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11
rtl/ddr3_controller.v
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@ -1106,14 +1106,14 @@ module ddr3_controller #(
write_calib_stb <= 1;//actual request flag write_calib_stb <= 1;//actual request flag
write_calib_we <= 1; //write-enable write_calib_we <= 1; //write-enable
write_calib_col <= 0; write_calib_col <= 0;
write_calib_data <= 64'h77_66_55_44_33_22_11_00; write_calib_data <= 64'h9177298cd0ad51c1;
state_calibrate <= ISSUE_WRITE_2; state_calibrate <= ISSUE_WRITE_2;
end end
ISSUE_WRITE_2: begin ISSUE_WRITE_2: begin
write_calib_stb <= 1;//actual request flag write_calib_stb <= 1;//actual request flag
write_calib_we <= 1; //write-enable write_calib_we <= 1; //write-enable
write_calib_col <= 8; write_calib_col <= 8;
write_calib_data <= 64'hff_ee_dd_cc_bb_aa_99_88; write_calib_data <= 64'h80dbcfd275f12c3d;
state_calibrate <= ISSUE_READ; state_calibrate <= ISSUE_READ;
end end
@ -1127,7 +1127,12 @@ module ddr3_controller #(
read_data_store <= o_wb_data; read_data_store <= o_wb_data;
state_calibrate <= ANALYZE_DATA; state_calibrate <= ANALYZE_DATA;
data_start_index <= 0; data_start_index <= 0;
write_pattern <= 128'hff_ee_dd_cc_bb_aa_99_88_77_66_55_44_33_22_11_00; // Possible Patterns (strong autocorrel stat)
//0x80dbcfd275f12c3d
//0x9177298cd0ad51c1
//0x01b79fa4ebe2587b
//0x22ee5319a15aa382
write_pattern <= 128'h80dbcfd275f12c3d_9177298cd0ad51c1;
end end
ANALYZE_DATA: if(write_pattern[data_start_index +: 64] == read_data_store) begin ANALYZE_DATA: if(write_pattern[data_start_index +: 64] == read_data_store) begin