!#" $ %& '( 2.4 q n k k n qn qn [3] )+* & "+-/." ( ) 3.2 Scilab FIR TMS320C DSP 2 Code Composer Studio 1.23 DSP %& '

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1 ! "#./ (0"1 ) A/D 9.3 D/A A/D x(t) (9.1) kt y k x k x k 1... x k n x(t) x(nt) y(nt) y(t) A D!#" D A FIR T x(t) f[hz] {x(0) x(t )... } D/A x k = e j2πfkt (9.2) (9.2) (9.1) {y(0) y(t )... } y(t) A/D 9.2 y k = ( h 0 + h 1 e j2πft + + h n e j2πfnt ) e j2πfkt D/A 9.3 T = 1/f s f s G(f) = h 0 + h 1 e j2πft + + h n e j2πfnt (9.4) (f s /2) x(kt ) y(kt ) x k y k (9.3) y k 2.2 FIR FIR (Finite Impulse Response Filter) 0 FIR FIR h i (9.1) y k = h 0 x k + h 1 x k h n x k n (9.1) "! #%$&('*)+- h i FIR h i (9.3) x k G(f) (9.3) 9-1

!#" $ %& '( 2.4 q n k k + 1 2 n qn qn [3] 3. 34 )+* & "+-/." 0 1 2 3.1 ( ) 3.

2 !#" $ %& '( 2.4 q n k k n qn qn [3] )+* & "+-/." ( ) 3.2 Scilab FIR TMS320C DSP 2 Code Composer Studio 1.23 DSP %& '( 9.4 DSP TMS320C DSP 9.4 DSP 8kHz 9-2

$Windows98 1. 2. 3.2.1 (P) DSP 6211-6711 DSP DSK Development Tools DSP LED CCStudio DSK C6000 1.23 Code Composer Studio ( 9.5) 3.2.2 Code Composer Studio 3.2.2.1 C:\ti\myprojects sample Windows98 9.$

3 Windows (P) DSP DSP DSK Development Tools DSP LED CCStudio DSK C Code Composer Studio ( 9.5) Code Composer Studio C:\ti\myprojects sample Windows Code Composer Studio FD(A:) Code Composer Studio FD(A:) 2. C:\ti\myprojects (C:) ti myprojects 3. C:\ti\myprojects sample fir (C) 1. Code Composer Studio Project (C) 1 New ( 9.7) FD(A:) (P) 2. sample Code Composer Studio (P) DSK Development Tools CCStudio DSK C fir ( 9.9) 9-3

10 9.7 (1) 9.10! "$# %& ' )( * + -./ 01!

4 9.9 (3) Code Composer Studio 9.6 Code Composer Studio Project + fir.mak (1) 9.10! "$# %& ' )( * + -./ 01! ' %& '29: 8 C 7K7LMN '2 3QP6RS %& '263T;U )( V 3TW Ẍ 7K Y )( fir.mak makefile makefile Code Composer Studio makefile 9.8 (2) rts6201.lib Project Add files to Project... ( 9.11) 9-4

$asm dsk6211.c Project Add files to Project... C/C++ Source Files(*.cpp;*.cc;*.cxx;*.c;*.sa) dsk6211.c *.cmd vectors.asm dsk6211.c C main.c FIR 3.2.2.6 Project Rebuild All A:\sample fir.$

5 9.11 (1) 3.5 FD(A) sample main.c dsk6211.c Object and Library main.c Files(*.o**.lib) rts6201.lib ( ) *.lib ( 9.12) 9.12 (2) dsk6211.lib Project Add files 0 Errors 0 Warnings to Project ( 9.13) FD(A) sample ( ) Object and Library Files(*.o*;*.lib) ( ) File dsk6211.lib Load Program ( 9.14) Load Program ( 9.15) fir.cmd Project Add files to Linker Command File(*.cmd) fir.cmd vectors.asm Project Add files to Project... Asm Source Files(*.a*;*.s*) vectors.asm dsk6211.c Project Add files to Project... C/C++ Source Files(*.cpp;*.cc;*.cxx;*.c;*.sa) dsk6211.c *.cmd vectors.asm dsk6211.c C main.c FIR Project Rebuild All A:\sample fir.out Project... fir.out 9-5

DSP DSP 9.13 9.16 3.2.2.9 File Exit Code Composer Studio 3.2.3 FIR Scilab Scilab 9.

$sci Scilab exec( a:\sample\design.sci ); 9.15 (2) hn.txt hn.$

6 DSP DSP File Exit Code Composer Studio FIR Scilab Scilab 9.14 (1) (P) Scilab 2.6 Scilab2.6 design.sci Scilab exec( a:\sample\design.sci ); 9.15 (2) hn.txt hn.txt Code Composer Studio design.sci 9.17 design.sci ( 9.16) 9-6

7 de6fhg FIR eqfir " #$ %&'(')(* +.-/10"' frmag ! 798 :! hm / fr; < = ` a hn.txt b c unix_w( del a:\sample\hn.txt ); hn=eqfir(15[0.1;.2.3;.4.5][1 0 1][ ]); [hmfr]=frmag(hn256); >? hm=20*log10(hm); fr=fr*8000; %@ ACBD EF ;DG H plot(fr(1:255)hm(1:255)); write( a:\sample\hn.txt hn); I? %J -K L(-M ; NOP 6S 74 (' T(K U $ VTWXC@6 Y'Z 4@'X [ \ C] ^ ; <= <= hn.txt /_ QR 9.17 FIR (design.sci)! ( 8kHz) ( ) 0.5 FIR eqfir eqfir design.sci Scilab 2 design.sci hn.txt Scilab Mule Mule 9-7

8 1 1! " $#&%('*) +- *.-/ $#%('0) 2 3 bash q14 bash (P) Cygnus Solutions Cygwin B $ :-; 3 ÏHJFK(LF'*) M CN OPQ <0 $# T(LK U VW BAB'F(0X(Y% L (0.5)R S (-#GZ [ ) a:sample\ hn.txt q14 fir-q14.txt bash cd //a/sample 9.18 eqfir q14.exe hn.txt hn-q14.txt (P) Mule for Win32 Mule for Win main Mulw for Win32 a:\sample main.c (P) main.c LENGTH Mule Mule h LENGTH h Scilab ( hn-q14.txt File Print ) Print(Scilab) Print(Windows) 2 Mule Code Composer Studie File Export Mule q14 Ctrl + x i ( Scilab Ctrl x i ) File Insert File DSP ( ) q14.exe a:\sample Code Composer Studio 9-8

9 G E E r:st)u *+ -./10 2)354 6)- =>?@.)/02 FIR 6h '&)( 7ABDC 9);< EF q14 H I = E x &( 7 08:9;)< "! #%$ '&)( #define DRR 0x18C0000 #define DXR 0x18C0004 #define LENGTH 8 volatile short *drr = (volatile short*) DRR; volatile short *dxr = (volatile short*) DXR; short x[length]={0}; /* History of sound input */ short h[length]={ }; void main() { dsk6211_init(); for (;;) { } } r:st)u j V T%V O k 2 :lzm DSP 02:J 9;)< dsk6211_init KL 0 E M1N >)O DP A:QSRUT V'W1X FIR ZY #%$ [ $ E interrupt void fir(void) { int isum=0; /* Update the history of sound input: Shift the data in x[i] and get current data to x[length-1] */ for(i=0;i<=length-2;i++){ x[i]=x[i+1]; } x[length-1]=*drr; /* Convolution */ for(i=0;i<=length-1;i++){ sum += (((int)x[i]* (int)h[length-1-i]) >> 14) & 0xFFFE; } *dxr = sum & 0xFFFE; } l5m)no Ogp q 0 d egf 7 hsruti bf \]^$_5` 'c1a 2 8a b F main.c DSP DSP DSP DSP DSP DSP (! " ) 100V 100V # $ %&(' )$ 100V FIR (main.c) 9-9

10 3.2.8 $ % & ')( * V! (" # ) 1V -./ / ;: <>= = 20 log 10 (9.5) db( ) DSP (4kHz) DSP 9.22 ) *+ - '. 0/1 2 3 ) *+ 4 $ "! #%$ & (' 100V 100V V

11 POWER SUM 0/ DISK 3 1. ESC AVG START (10) 6 START 8 7 FREQ PAUSE 3. (9) 2 10kHz kHz SELECT 4. (8) ( ) (3) SELECT (5) (8) 100 SELECT (5) 6. (8) POWER SUM(1) SELECT (5) 7. (8) 32 1 SELECT (5) 8. START (7) SELECT (5) 9. (8) AVG STAR T(6) POWER SUM(1) 32/ (8) DAT(12) SELECT (5) 6. (8) GRP SELECT (5) 1. (8) 2. (8) LOAD(11) SELECT (5) 3. (8) STORE SELECT (5) 4. (8) 001(12) 7. (8) EX- DISK(2) SELECT (5) ECUTE(13) SELECT (5) ( 9.24)

12 DISK OPERATION [END] [ LOAD ] -->[FILE]+[001]+[.DAT] [EXECUTE] E E+01..( ) E E ( ) Scilab 5. Scilab File Exec data.sci file001.grp (O) data1.sci Scilab plot(d1(:1)d1(:2))\rt 1. file001.grp data1.sci 2. Mule for Win32 data1.sci File exists but cannot be read. 1 2 Ctrl + x Ctrl + q 3. "ONO SOKKI CF-4220 PERSONAL FFT ANALYZER" "CF-4200""XA11..A411~" " :18""AB11..B411~" " SPECTRUM ""TX" 401"OTFONO SOKKI CF-4220 PERSONAL "Hz ""TS SPECTRUM ~" "dbv""txhz ~" " MAG""TY MAG dbv~" """QV " "" ( 1 ) d1=[0.0000e e+01..( ) E E+01]; d1=[ ]; Scilab d1 9.25! ( ) ( )

13 [2] ( ): A (1993) B [3] : DSP C A A (2000) B B B A A B A B A A B B A B A B [1] : (1986) 9-13

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untitled 1. 9.,, 2, 0 1 2 3 4 t 4 4 2 {01, 11, 10, 01} 2.,, 4 2 0 1 2 3 4 t {01, 11, 11, 01, 01} 0 1 2 3 4 t 4 2 0 1 2 3 4 t 2.1 9.1 9.1, A/D x(t) x(t) x(nt) y(nt) y(t) A D D A 9.1 T {x(0),x(t),...}, D/A {y(0),y(t),...}