| Line 21... |
Line 21... |
-- Purpose: Pipelined radix 2 FFT
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-- Purpose: Pipelined radix 2 FFT
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-- Description: ASTRON-RP-755
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-- Description: ASTRON-RP-755
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-- Remarks: doc/readme.txt
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-- Remarks: doc/readme.txt
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|
|
|
|
library ieee, common_pkg_lib, common_requantize_lib;
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library ieee, common_pkg_lib, astron_requantize_lib;
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use IEEE.std_logic_1164.all;
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use IEEE.std_logic_1164.all;
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use common_pkg_lib.common_pkg.all;
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use common_pkg_lib.common_pkg.all;
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use work.twiddlesPkg.all;
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use work.twiddlesPkg.all;
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use work.rTwoSDFPkg.all;
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use work.rTwoSDFPkg.all;
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|
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| Line 146... |
Line 146... |
end generate;
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end generate;
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|
|
------------------------------------------------------------------------------
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------------------------------------------------------------------------------
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-- pipelined FFT output requantization
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-- pipelined FFT output requantization
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------------------------------------------------------------------------------
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------------------------------------------------------------------------------
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u_requantize_re : entity common_requantize_lib.common_requantize
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u_requantize_re : entity astron_requantize_lib.common_requantize
|
generic map (
|
generic map (
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g_representation => "SIGNED",
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g_representation => "SIGNED",
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g_lsb_w => c_out_scale_w,
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g_lsb_w => c_out_scale_w,
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g_lsb_round => TRUE,
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g_lsb_round => TRUE,
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g_lsb_round_clip => FALSE,
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g_lsb_round_clip => FALSE,
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| Line 167... |
Line 167... |
in_dat => raw_out_re,
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in_dat => raw_out_re,
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out_dat => out_re,
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out_dat => out_re,
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out_ovr => open
|
out_ovr => open
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);
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);
|
|
|
u_requantize_im : entity common_requantize_lib.common_requantize
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u_requantize_im : entity astron_requantize_lib.common_requantize
|
generic map (
|
generic map (
|
g_representation => "SIGNED",
|
g_representation => "SIGNED",
|
g_lsb_w => c_out_scale_w,
|
g_lsb_w => c_out_scale_w,
|
g_lsb_round => TRUE,
|
g_lsb_round => TRUE,
|
g_lsb_round_clip => FALSE,
|
g_lsb_round_clip => FALSE,
|
