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3.4.2硬件測(cè)試（禁用緩存及使用緩存） 修改main.c文件中的代碼可選擇硬件測(cè)試模式，如下圖所示： 重新編譯之后，使用仿真器連接開發(fā)板，進(jìn)入仿真狀態(tài)，加載編譯好的.out文件，執(zhí)行得到如下結(jié)果： ![]() " l" Y: s. v& G0 Z
[C66xx_0] Test signal -Include 2V DC Component -Include 3V AC Component,Frequency:50Hz Phase:-30 Degree -Include 1.5V AC Component,Frequency:75Hz Phase:90 Degree -Formula:y=2+3cos(2pi*50t-(30/180)pi)+1.5cos(2pi*75t+*(90/180)pi) --------------------------- Cache Disabled --------------------------- ---------------------------------------------------------------------- 1: 16 Point FFT Test -Sampling Period:1s Sampling Frequency:16Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 7558 -Forward Transformation Execution Time is 7.5580000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 7442 -Inverse Transformation Execution Time is 7.4420000 us (CPU Frequency:1000MHz) 16 Point FFT Test End ---------------------------------------------------------------------- 2: 32 Point FFT Test -Sampling Period:1s Sampling Frequency:32Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 9380 -Forward Transformation Execution Time is 9.3800000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 9678 -Inverse Transformation Execution Time is 9.6780000 us (CPU Frequency:1000MHz) 32 Point FFT Test End ---------------------------------------------------------------------- 3: 64 Point FFT Test -Sampling Period:1s Sampling Frequency:64Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 19494 -Forward Transformation Execution Time is 19.4940000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 20236 -Inverse Transformation Execution Time is 20.2360000 us (CPU Frequency:1000MHz) 64 Point FFT Test End ---------------------------------------------------------------------- 4: 128 Point FFT Test -Sampling Period:1s Sampling Frequency:128Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 35840 -Forward Transformation Execution Time is 35.8400000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 37002 -Inverse Transformation Execution Time is 37.0020000 us (CPU Frequency:1000MHz) 128 Point FFT Test End ---------------------------------------------------------------------- 5: 256 Point FFT Test -Sampling Period:1s Sampling Frequency:256Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 83414 -Forward Transformation Execution Time is 83.4140000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 86428 -Inverse Transformation Execution Time is 86.4280000 us (CPU Frequency:1000MHz) 256 Point FFT Test End ---------------------------------------------------------------------- 6: 512 Point FFT Test -Sampling Period:1s Sampling Frequency:512Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 164924 -Forward Transformation Execution Time is 164.9240000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 168962 -Inverse Transformation Execution Time is 168.9620000 us (CPU Frequency:1000MHz) 512 Point FFT Test End ---------------------------------------------------------------------- 7: 1024 Point FFT Test -Sampling Period:1s Sampling Frequency:1024Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 314634 -Forward Transformation Execution Time is 314.6340000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 327308 -Inverse Transformation Execution Time is 327.3080000 us (CPU Frequency:1000MHz) 1024 Point FFT Test End ---------------------------------------------------------------------- 8: 2048 Point FFT Test -Sampling Period:1s Sampling Frequency:2048Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 619134 -Forward Transformation Execution Time is 619.1340000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 626648 -Inverse Transformation Execution Time is 626.6480000 us (CPU Frequency:1000MHz) 2048 Point FFT Test End ---------------------------------------------------------------------- 9: 4096 Point FFT Test -Sampling Period:1s Sampling Frequency:4096Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 1403024 -Forward Transformation Execution Time is 1403.0240000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 1391810 -Inverse Transformation Execution Time is 1391.8100000 us (CPU Frequency:1000MHz) 4096 Point FFT Test End ---------------------------------------------------------------------- 10: 8192 Point FFT Test -Sampling Period:1s Sampling Frequency:8192Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 3065058 -Forward Transformation Execution Time is 3065.0580000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 2942344 -Inverse Transformation Execution Time is 2942.3440000 us (CPU Frequency:1000MHz) 8192 Point FFT Test End ---------------------------------------------------------------------- 11: 16384 Point FFT Test -Sampling Period:1s Sampling Frequency:16384Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 7421890 -Forward Transformation Execution Time is 7421.8900000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 7359204 -Inverse Transformation Execution Time is 7359.2040000 us (CPU Frequency:1000MHz) 16384 Point FFT Test End ---------------------------------------------------------------------- 12: 32768 Point FFT Test -Sampling Period:1s Sampling Frequency:32768Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 16034550 -Forward Transformation Execution Time is 16034.5500000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 15501746 -Inverse Transformation Execution Time is 15501.7460000 us (CPU Frequency:1000MHz) 32768 Point FFT Test End ---------------------------------------------------------------------- 13: 65536 Point FFT Test -Sampling Period:1s Sampling Frequency:65536Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 36493010 -Forward Transformation Execution Time is 36493.0100000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 35923952 -Inverse Transformation Execution Time is 35923.9520000 us (CPU Frequency:1000MHz) 65536 Point FFT Test End ---------------------------------------------------------------------- 14: 131072 Point FFT Test -Sampling Period:1s Sampling Frequency:131072Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 76507454 -Forward Transformation Execution Time is 76507.4540000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 75288972 -Inverse Transformation Execution Time is 75288.9720000 us (CPU Frequency:1000MHz) 131072 Point FFT Test End ---------------------------------------------------------------------- 15: 262144 Point FFT Test -Sampling Period:1s Sampling Frequency:262144Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 195097318 -Forward Transformation Execution Time is 195097.3180000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 168462636 -Inverse Transformation Execution Time is 168462.6360000 us (CPU Frequency:1000MHz) 262144 Point FFT Test End --------------------------- Cache Enabled ---------------------------- ---------------------------------------------------------------------- 1: 16 Point FFT Test -Sampling Period:1s Sampling Frequency:16Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 2034 -Forward Transformation Execution Time is 2.0340000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 1638 -Inverse Transformation Execution Time is 1.6380000 us (CPU Frequency:1000MHz) 16 Point FFT Test End ---------------------------------------------------------------------- 2: 32 Point FFT Test -Sampling Period:1s Sampling Frequency:32Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 1048 -Forward Transformation Execution Time is 1.0480000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 1257 -Inverse Transformation Execution Time is 1.2570000 us (CPU Frequency:1000MHz) 32 Point FFT Test End ---------------------------------------------------------------------- 3: 64 Point FFT Test -Sampling Period:1s Sampling Frequency:64Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 1302 -Forward Transformation Execution Time is 1.3020000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 1513 -Inverse Transformation Execution Time is 1.5130000 us (CPU Frequency:1000MHz) 64 Point FFT Test End ---------------------------------------------------------------------- 4: 128 Point FFT Test -Sampling Period:1s Sampling Frequency:128Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 2080 -Forward Transformation Execution Time is 2.0800000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 2812 -Inverse Transformation Execution Time is 2.8120000 us (CPU Frequency:1000MHz) 128 Point FFT Test End ---------------------------------------------------------------------- 5: 256 Point FFT Test -Sampling Period:1s Sampling Frequency:256Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 4246 -Forward Transformation Execution Time is 4.2460000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 3828 -Inverse Transformation Execution Time is 3.8280000 us (CPU Frequency:1000MHz) 256 Point FFT Test End ---------------------------------------------------------------------- 6: 512 Point FFT Test -Sampling Period:1s Sampling Frequency:512Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 7632 -Forward Transformation Execution Time is 7.6320000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 7307 -Inverse Transformation Execution Time is 7.3070000 us (CPU Frequency:1000MHz) 512 Point FFT Test End ---------------------------------------------------------------------- 7: 1024 Point FFT Test -Sampling Period:1s Sampling Frequency:1024Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 14718 -Forward Transformation Execution Time is 14.7180000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 12958 -Inverse Transformation Execution Time is 12.9580000 us (CPU Frequency:1000MHz) 1024 Point FFT Test End ---------------------------------------------------------------------- 8: 2048 Point FFT Test -Sampling Period:1s Sampling Frequency:2048Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 27603 -Forward Transformation Execution Time is 27.6030000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 24465 -Inverse Transformation Execution Time is 24.4650000 us (CPU Frequency:1000MHz) 2048 Point FFT Test End ---------------------------------------------------------------------- 9: 4096 Point FFT Test -Sampling Period:1s Sampling Frequency:4096Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 55642 -Forward Transformation Execution Time is 55.6420000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 51792 -Inverse Transformation Execution Time is 51.7920000 us (CPU Frequency:1000MHz) 4096 Point FFT Test End ---------------------------------------------------------------------- 10: 8192 Point FFT Test -Sampling Period:1s Sampling Frequency:8192Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 117352 -Forward Transformation Execution Time is 117.3520000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 110913 -Inverse Transformation Execution Time is 110.9130000 us (CPU Frequency:1000MHz) 8192 Point FFT Test End ---------------------------------------------------------------------- 11: 16384 Point FFT Test -Sampling Period:1s Sampling Frequency:16384Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 305480 -Forward Transformation Execution Time is 305.4800000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 338549 -Inverse Transformation Execution Time is 338.5490000 us (CPU Frequency:1000MHz) 16384 Point FFT Test End ---------------------------------------------------------------------- 12: 32768 Point FFT Test -Sampling Period:1s Sampling Frequency:32768Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 704543 -Forward Transformation Execution Time is 704.5430000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 716023 -Inverse Transformation Execution Time is 716.0230000 us (CPU Frequency:1000MHz) 32768 Point FFT Test End ---------------------------------------------------------------------- 13: 65536 Point FFT Test -Sampling Period:1s Sampling Frequency:65536Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 1855574 -Forward Transformation Execution Time is 1855.5740000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 1759068 -Inverse Transformation Execution Time is 1759.0680000 us (CPU Frequency:1000MHz) 65536 Point FFT Test End ---------------------------------------------------------------------- 14: 131072 Point FFT Test -Sampling Period:1s Sampling Frequency:131072Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 4640602 -Forward Transformation Execution Time is 4640.6020000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 3878201 -Inverse Transformation Execution Time is 3878.2010000 us (CPU Frequency:1000MHz) 131072 Point FFT Test End ---------------------------------------------------------------------- 15: 262144 Point FFT Test -Sampling Period:1s Sampling Frequency:262144Hz Frequency Resolution:1Hz -Forward Transformation Execution Cycle is 48638110 -Forward Transformation Execution Time is 48638.1100000 us (CPU Frequency:1000MHz) -Inverse Transformation Execution Cycle is 14138131 -Inverse Transformation Execution Time is 14138.1310000 us (CPU Frequency:1000MHz) 262144 Point FFT Test End Test Finished!
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