KutningJo/signal_processing_vorlage
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New FFT.vhd Template and Fix FFT TB (expected values)

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zieglerhe
2025-05-30 11:33:35 +02:00
parent 5efb80253b
commit c90753aa23
3 changed files with 257 additions and 21 deletions
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tests/hardware/task_fft/test_task_fft.vhd
+3 -1
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@@ -63,7 +63,7 @@ architecture test of test_task_fft is
variable writedata_float : float32;
variable writedata_real : real;
variable expected_real : real;
variable abs_err : real := 0.5e-1;
variable abs_err : real := 0.6;
variable result : data_array( 0 to work.task.STREAM_LEN - 1 );
variable result_fft : data_array( 0 to work.task.STREAM_LEN - 1 );
file data_file : text;
@@ -110,11 +110,13 @@ architecture test of test_task_fft is
std.textio.write( data_file_fft, "]" & LF );
file_close( data_file_fft );
index := 0;
while index < STREAM_LEN loop
writedata_float := to_float( result( index ) );
writedata_real := to_real( writedata_float );
expected_real := work.fft_data.expected( index );
assert_near( writedata_real, expected_real, abs_err );
index := index + 1;
end loop;
file_open( data_file_fft_bit_reversed, "fft_out_bit_reversed.py", write_mode );
tests/hardware/task_fft/vsim.wave
+1
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@@ -1 +1,2 @@
add wave -position end sim:/test_task_fft/dut/*
add wave -position end sim:/test_task_fft/dut/u_fft/*