intpoll.ps

DSP6000＋AD535语音采集的单频噪声消除的C语音代码

28 44 33 28 25 25 25 72 33 28 44 33 25 28  0]xS 
2273 728 M (e Status is Finished, close the box.)[44 25 56 28 44 28 50 39 25 28 39 25 55 28 50 28 39 50 44 50 25 25 44 28 50 39 44 25 28 50 44 26
50 50 51  0]xS 
3652 728 M (  Go to View )[25 25 72 50 25 28 50 25 72 28 44 72  0]xS 
475 843 M (> Zoom 1:1.)[56 25 60 50 50 78 25 50 28 50  0]xS 
972 843 M (  )[25  0]xS 
1022 843 M ( )S 
475 958 M ( )S 
475 1073 M (If the Device Controls window is not open, go to Window > Companion and select Device )
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25 50 50 28 25 50 50 44 50 25 25 49 50 25 28 50 26 95 28 50 50 50 72 25 56 25 67 50 78 50 44 50
28 50 50 25 44 50 50 25 39 44 28 44 44 28 25 72 44 50 28 45 44  0]xS 
475 1188 M (Control.  Hit the right)[67 50 50 28 33 50 28 25 25 25 72 28 28 25 28 50 44 25 33 28 49 50  0]xS 
1344 1188 M (-)S 
1377 1188 M (mouse button while in the Device Controls window and select )[79 50 50 39 44 25 50 50 28 28 50 50 25 72 50 28 28 44 25 28 50 25 28 50 44 25 72 44 50 28 44 44
25 67 50 50 28 33 50 28 39 25 72 28 50 50 50 73 25 44 50 50 25 39 44 28 44 44 28  0]xS 
475 1303 M (Properties.  Check the)[56 33 50 50 44 33 28 28 44 39 25 25 25 67 50 44 44 50 25 28 50  0]xS 
1357 1303 M ( box for Loop and set the number to 0.  This creates an infinite loop.  )
[25 50 51 51 25 33 50 33 26 59 50 50 50 25 44 50 50 25 39 44 28 25 28 50 44 25 50 51 78 50 44 33
25 28 50 25 50 25 25 25 61 50 28 39 25 44 33 45 44 28 44 39 25 45 50 25 28 50 33 28 50 28 28 44
25 28 50 50 50 25 25  0]xS 
475 1418 M (When you are ready to run, you activate the loop by hitting the User Play button, the green )
[95 50 44 50 26 48 50 50 25 44 34 44 25 34 44 44 52 48 25 28 50 25 33 51 50 25 26 48 50 50 25 45
44 28 28 50 44 28 44 25 28 50 44 25 28 50 50 50 25 51 48 26 50 28 28 28 28 50 49 25 28 50 44 26
72 39 44 33 25 56 28 46 48 25 51 50 28 28 50 50 25 25 28 50 44 25 49 33 45 44 50  0]xS 
475 1533 M (button with the smiley face \(cute\).)[50 50 28 28 50 50 25 72 28 28 50 25 28 50 44 25 39 78 28 28 45 47 26 33 45 44 44 25 33 44 50 29
44 33  0]xS 
1846 1533 M ( )S 
475 1648 M ( )S 
F2S64 Ji 
475 1765 M (Set)[56 44  0]xS 
608 1765 M (-)S 
641 1765 M (up)[56  0]xS 
753 1765 M ( )S 
475 1880 M ( )S 
F1S64 Ji 
475 1993 M (Now connect the back output of the computer sou)[72 50 72 25 44 50 50 50 45 44 28 25 28 50 44 25 50 44 44 50 25 50 51 28 50 50 28 25 50 33 25 28
50 44 25 44 50 78 50 50 28 44 33 25 39 50  0]xS 
2469 1993 M (nd card to the input of the DSK board.  )[50 50 25 44 44 33 50 25 28 50 25 28 50 44 25 28 50 50 50 28 25 50 33 25 28 51 44 25 72 56 72 25
50 50 44 33 50 25 25  0]xS 
475 2108 M (Connect the output to the scope.  Set the scope at around )[67 50 50 50 44 44 28 25 28 50 44 25 50 50 28 50 50 28 25 28 50 25 28 50 44 25 39 44 50 50 44 25
25 25 56 44 28 25 28 50 44 25 39 44 50 50 44 26 44 28 25 45 33 50 50 50 50  0]xS 
2766 2108 M (5)S 
2816 2108 M (00mV, DC coupling, and Auto for )[50 50 78 72 25 25 72 67 25 44 50 50 50 28 28 50 49 25 25 44 50 50 26 72 50 28 50 25 33 50 33  0]xS 
475 2223 M (the trigger mode \(found by hitting the Trigger Menu on the scope\).)
[28 50 44 25 28 33 28 50 49 45 33 25 78 50 50 44 25 34 33 50 50 50 50 26 51 48 25 50 28 28 28 28
50 49 25 28 50 44 25 62 33 29 50 49 44 33 25 90 45 50 50 25 50 50 25 28 50 44 25 39 44 50 50 44
33  0]xS 
3152 2223 M ( )S 
475 2338 M ( )S 
F2S64 Ji 
475 2455 M (Running the program)[72 56 56 56 27 56 50 25 33 56 44 25 56 44 50 50 44 51  0]xS 
1408 2455 M ( )S 
475 2570 M ( )S 
F1S64 Ji 
475 2683 M (Start the sine wave input using the )[56 28 44 33 28 25 28 50 44 25 39 28 50 44 25 72 44 50 44 25 28 50 50 50 28 26 50 39 28 50 49 25
28 50 44  0]xS 
1877 2683 M (Device Controls Window.)[73 44 50 28 44 44 25 67 50 50 28 33 50 29 39 25 95 28 50 50 50 72  0]xS 
2926 2683 M ( )S 
475 2798 M (Load and run the loop_intr program.)[60 50 44 50 26 44 50 50 25 33 50 50 25 28 50 44 25 28 50 50 50 50 28 51 28 33 25 50 33 50 50 33
44 78  0]xS 
1935 2798 M ( )S 
475 2913 M (Select Trigger Menu on the scope and Normal for the mode.  This should freeze the signal.)
[56 44 28 44 44 28 25 61 33 29 50 49 44 33 25 90 44 50 50 25 50 50 25 28 50 44 25 39 44 50 50 44
25 44 50 50 26 72 50 33 78 44 28 25 33 51 33 26 28 50 44 25 78 50 50 44 25 25 25 61 50 28 39 25
39 50 50 50 28 50 25 33 33 44 44 45 44 25 28 50 44 25 39 28 49 51 44 28  0]xS 
4112 2913 M ( )S 
475 3028 M (Select Cursors on the scope)[56 44 28 44 44 28 25 67 50 33 39 50 33 39 25 50 50 25 28 50 44 25 39 44 51 50  0]xS 
1580 3028 M ( and Type Voltage)[25 44 50 50 25 63 48 50 44 26 72 50 28 28 44 50  0]xS 
2321 3028 M ( and measure the peak)[25 44 50 51 25 78 44 44 39 50 33 44 25 28 50 44 25 51 44 44  0]xS 
3209 3028 M (-)S 
3242 3028 M (to)[28  0]xS 
3321 3028 M (-)S 
3354 3028 M (peak voltage.  Find )[50 44 45 50 25 50 50 28 28 44 49 44 25 25 26 55 28 50 50  0]xS 
475 3143 M (the offset \(in ot)[28 50 44 25 50 33 33 39 44 28 25 33 28 50 25 50  0]xS 
1088 3143 M (her words the signal is not centered a)[50 44 33 26 72 50 33 50 40 25 28 50 44 25 39 28 49 50 44 28 25 28 39 25 50 50 28 25 44 44 50 29
44 33 44 51 25  0]xS 
2574 3143 M (t)S 
2602 3143 M ( 0 but a)[25 50 25 50 50 28 25  0]xS 
2899 3143 M (t)S 
2927 3143 M ( an offset\).)[25 44 50 25 50 33 33 39 44 29 33  0]xS 
3357 3143 M ( )S 
475 3258 M (Select Type Time and determine the frequency of the signal.)[56 44 28 44 44 28 25 62 48 51 44 25 61 28 78 44 25 44 50 50 25 51 45 28 44 33 78 28 50 44 25 28
50 44 25 33 34 44 50 50 44 50 46 48 25 51 33 26 28 50 44 25 39 28 49 50 44 28  0]xS 
2896 3258 M ( )S 
475 3373 M ( )S 
475 3488 M (Let\222s also look at the output in the buffer.  Go to View > Graph > Time/Frequency.  For the )
[60 44 29 33 39 25 44 28 39 50 25 28 50 50 50 25 44 28 25 28 50 44 25 50 50 29 50 50 28 25 28 50
25 28 50 44 25 50 50 33 33 44 33 25 25 25 72 50 25 28 50 26 72 28 44 72 25 56 25 73 33 44 50 50
25 56 25 61 28 78 44 29 55 34 44 50 50 44 50 46 48 25 25 26 55 50 33 25 28 50 44  0]xS 
475 3603 M (start address use the variable buffer.  Th)[39 28 44 33 28 25 44 50 50 33 44 39 39 25 50 39 44 25 28 51 44 25 50 44 33 29 44 50 28 44 25 50
50 33 34 44 33 25 25 25 61  0]xS 
2079 3603 M (e acquisition buffer size is 512.  Use a display data )[44 26 44 44 50 50 28 39 28 28 28 50 50 25 50 50 33 33 44 33 25 39 28 45 44 25 28 39 25 50 50 50
25 25 25 73 39 44 25 44 25 50 28 39 50 28 46 48 25 50 44 28 44  0]xS 
475 3718 M (size of 512.  DSP Data Type is 16 bit signed integer and the sampling rate is 8kHz.  Now )
[39 28 45 44 25 50 33 25 50 50 50 25 25 25 72 56 56 25 72 44 28 44 25 61 48 51 44 25 28 39 25 50
50 25 50 28 28 25 39 28 49 51 44 50 25 28 50 28 45 50 44 33 25 44 50 50 25 28 50 44 25 40 44 78
50 28 28 50 49 25 34 44 28 44 25 29 39 25 50 50 72 45 25 25 25 72 50 72  0]xS 
475 3833 M (change the display data size to 128.  What is the peak)[44 50 44 51 49 44 25 28 50 44 25 50 28 39 50 28 46 48 25 51 44 28 44 25 40 28 45 44 25 28 50 25
50 50 50 25 25 25 95 50 44 28 25 28 39 24 28 50 44 25 50 44 44  0]xS 
2613 3833 M (-)S 
2646 3833 M (to)[28  0]xS 
2724 3833 M (-)S 
2757 3833 M (peak amplitude?)[51 44 44 50 25 44 78 50 28 28 28 50 50 44  0]xS 
3417 3833 M ( )S 
475 3948 M ( )S 
475 4063 M (Now go to View > Graph > Time/Frequenc)[72 50 72 25 49 50 25 28 50 25 72 29 44 72 25 56 25 73 33 44 50 51 25 56 25 61 28 78 44 28 55 34
44 50 50 44 50  0]xS 
2213 4063 M (y.  Select Display Type of FFT Magnitude.  )[48 25 25 25 56 44 29 45 44 28 25 72 28 39 50 28 45 48 25 63 48 51 44 25 50 33 26 55 55 61 26 89
44 49 50 28 28 50 50 44 25 25  0]xS 
475 4178 M (Acquisition Buffer Size and FFT Framesize should be 512.  The FFT Order should be 9 since )
[72 44 50 50 28 39 28 28 28 50 50 25 66 50 33 33 45 33 25 56 28 45 44 25 44 50 50 25 55 55 61 26
55 34 44 78 44 39 28 45 44 25 39 50 50 50 28 50 25 50 44 25 50 50 50 25 25 25 61 50 44 26 55 55
61 25 73 33 50 45 33 25 39 50 50 50 28 50 25 50 44 25 50 25 39 28 50 44 44  0]xS 
475 4293 M (2^9 = 512.  The sampling rate is 8kHz and the data type is 16 bit signed integer.  What is the )
[50 47 50 25 56 25 50 50 50 25 25 25 61 50 44 25 39 44 78 50 28 28 51 49 25 34 44 28 44 25 28 39
25 50 50 72 45 25 44 50 50 25 28 50 44 25 50 44 29 44 25 29 48 51 44 25 28 39 25 50 50 25 50 28
28 25 39 28 49 50 44 50 25 28 50 29 44 50 44 33 25 25 25 95 50 44 28 25 28 39 25 28 50 44  0]xS 
475 4408 M (frequency of the signal.)[33 33 44 50 50 44 51 46 48 25 50 33 25 28 50 44 25 39 29 49 50 44 28  0]xS 
1418 4408 M ( )S 
475 4523 M ( )S 
F3S64 Ji 
475 4638 M (##)[50  0]xS 
576 4638 M ( Answer the following:)[25 61 50 39 67 44 39 25 28 50 44 25 28 50 28 28 49 67 28 50 50  0]xS 
1483 4638 M ( )S 
475 4753 M (3.  )[50 25 25  0]xS 
600 4753 M (Open up the vectors_11.asm file.  When there is an interrupt from interrupt 11, to where )
[72 50 44 50 25 50 50 25 28 50 44 25 45 44 44 28 50 39 39 51 50 50 25 50 39 72 25 28 28 28 44 25
25 26 81 51 44 50 25 28 50 44 39 44 26 28 39 25 50 50 25 28 50 28 44 39 39 50 50 28 25 28 39 50
72 25 28 50 28 44 38 39 50 50 28 25 50 50 25 25 28 50 25 67 50 44 39 44  0]xS 
475 4868 M (does program execution branch)[50 50 44 39 25 50 39 50 50 39 50 72 25 44 45 44 44 50 28 28 50 50 26 50 39 50 50 44  0]xS 
1750 4868 M (?)S 
1800 4868 M ( )S 
475 4983 M (4.  )[50 25 25  0]xS 
601 4983 M (What is the peak)[81 50 50 28 25 28 39 25 28 50 44 25 50 44 51  0]xS 
1263 4983 M (-)S 
1296 4983 M (to)[28  0]xS 
1374 4983 M (-)S 
1407 4983 M (peak voltage of the output of the codec)[51 44 50 44 25 44 50 28 28 50 50 44 25 50 28 25 28 50 44 25 50 50 28 50 50 28 26 50 28 25 28 50
44 25 44 50 50 44  0]xS 
2954 4983 M ( according to the scope)[25 51 44 44 50 39 50 28 50 50 25 28 50 25 28 50 44 25 39 44 50 50  0]xS 
3887 4983 M (?)S 
3937 4983 M ( )S 
475 5098 M (5.  What is the offse)[50 25 25 26 81 50 50 28 25 28 39 25 28 50 44 25 50 28 28 39  0]xS 
1263 5098 M (t?)[28  0]xS 
1341 5098 M ( )S 
475 5213 M (6.  What is the frequency of the signal)[50 25 25 26 81 50 50 28 25 28 39 25 28 50 44 25 28 39 44 50 50 44 51 44 44 26 50 28 25 28 50 44
25 39 28 50 50 50  0]xS 
1989 5213 M ( according to the scope)[25 50 44 44 50 39 50 28 50 50 25 28 50 25 28 50 44 25 39 44 50 50  0]xS 
2921 5213 M (?)S 
2971 5213 M ( )S 
475 5328 M (7.  What is the peak)[50 25 25 26 81 50 50 28 25 28 39 25 28 50 44 25 50 44 51  0]xS 
1263 5328 M (-)S 
1296 5328 M (to)[28  0]xS 
1374 5328 M (-)S 
1407 5328 M (peak amplitude according to the graph in CCS?  Based on this, what )
[51 44 50 44 25 50 72 50 28 28 28 50 50 44 25 50 45 44 50 39 50 28 50 50 25 28 50 25 28 50 44 25
50 39 50 50 50 25 28 50 25 67 67 50 50 25 25 61 49 39 44 50 25 50 50 25 28 50 28 39 25 25 67 50
50 28  0]xS 
475 5443 M (is approximately the output voltage of the codec per 1000 bits sent to the DAC?)
[28 39 25 50 50 50 39 50 44 28 72 50 28 44 28 44 25 28 50 44 25 50 50 28 50 50 28 25 44 50 28 28
50 50 44 25 50 28 25 28 50 44 25 44 50 50 44 44 25 51 44 39 25 50 50 50 50 25 50 28 28 39 25 39
44 50 28 25 28 50 25 28 50 44 25 72 61 67  0]xS 
3663 5443 M ( )S 
475 5558 M (8.  )[50 25 25  0]xS 
601 5558 M (What is the fr)[81 50 50 28 25 28 39 25 28 50 44 25 28  0]xS 
1141 5558 M (equency of the signal from the FFT?)[44 50 50 44 51 44 44 26 50 28 25 28 50 44 25 39 28 50 50 50 28 25 28 39 50 72 25 28 50 44 25 61
61 56  0]xS 
2603 5558 M ( )S 
F1S64 Ji 
475 5673 M ( )S 
F0S64 Ji 
475 5790 M (II.)[39 39  0]xS 
578 5790 M (  )[25  0]xS 
628 5790 M (POLLING)[61 72 61 61 39 72  0]xS 
1066 5790 M ( )S 
F1S64 Ji 
475 5903 M ( )S 
475 6018 M (You will need to create a project and add the following files:)
[72 50 50 25 72 28 28 28 25 50 44 44 50 25 28 50 25 44 33 45 44 28 44 25 45 25 50 33 50 28 44 44
28 25 44 50 50 25 44 50 50 25 28 51 44 25 33 50 28 28 51 72 28 50 49 25 33 28 28 44 39  0]xS 
2904 6018 M ( )S 
475 6133 M ( )S 
LH
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0 0 0 1 scol 775 498 M (loop_poll.c, vectorsc.asm, and the support files )[28 50 50 50 50 50 50 28 28 25 44 25 25 50 44 44 28 50 33 39 44 25 44 39 79 25 25 44 50 50 25 28
50 44 25 39 50 50 50 50 33 28 25 33 28 28 44 39  0]xS 
2685 498 M (except for)[44 51 44 44 50 28 25 33 50  0]xS 
: N 2685 509 402 5 rp C 
 L ; 3087 498 M ( vectors_11.asm)[25 51 44 44 28 50 33 39 50 50 50 25 44 39  0]xS 
3737 498 M ( )S 
3763 498 M ( )S 
775 613 M ( )S 
775 728 M (loop_poll.c acquires data through polling and sends data out by )
[28 50 50 50 50 50 50 28 28 25 44 25 44 44 50 50 28 33 44 39 25 50 44 29 45 25 28 50 33 50 50 49
50 25 50 50 28 28 28 50 49 26 44 50 50 25 39 44 50 51 39 25 50 44 28 44 25 50 50 28 25 51 48  0]xS 
3332 728 M (polling.)[50 50 28 28 28 51 49  0]xS 
3641 728 M ( )S 
475 843 M ( )S 
475 958 M (Repeat what you did above in part I but this time using polling.)
[67 44 50 44 44 28 25 72 50 44 28 27 48 50 50 25 50 28 50 25 44 50 51 50 44 25 28 50 25 50 44 33
28 26 32 25 50 50 28 25 28 50 28 39 25 28 28 78 44 25 50 39 28 50 49 25 50 50 28 28 28 50 49  0]xS 
3004 958 M ( )S 
475 1073 M ( )S 
475 1188 M (The input_sample function in the )[61 50 44 25 28 50 50 50 28 50 39 44 78 50 28 44 25 33 50 50 44 28 29 50 50 25 28 50 25 28 50 44
 0]xS 
1828 1188 M (c6xdskinit.c file calls mcbsp_read, also in c6xdskinit.c.  Go )
[44 50 51 50 39 50 28 50 28 28 25 44 25 33 28 28 43 25 44 44 28 28 39 25 78 44 50 39 50 50 33 44
44 50 25 26 44 28 39 50 25 28 50 25 44 50 51 50 39 50 28 50 28 28 25 44 25 25 25 72 50  0]xS 
475 1303 M (to )[28 50  0]xS 
578 1303 M (the function mcbsp_read.  If you are polling, there is a test condition which must)
[28 50 44 25 33 50 50 44 28 28 50 50 25 78 44 50 39 50 50 33 45 44 50 25 25 26 32 33 27 48 50 50
25 45 33 44 25 50 50 28 28 28 50 49 25 25 28 51 44 33 44 25 28 39 25 44 25 28 44 39 28 25 44 50
50 50 28 28 28 50 50 25 72 51 28 44 50 25 78 50 39  0]xS 
3805 1303 M ( be )[25 50 44  0]xS 
475 1418 M (satisfied before a sample is acquired.  Try to explain this condition.  MCBSP0_SPCR refers )
[39 44 28 28 39 33 28 44 50 25 50 44 33 50 34 44 25 44 25 39 44 78 50 28 44 26 28 39 25 44 44 50