Hi Jyothi,
I have attached an old lab material to create and run a sinewave generation project. Please do check whether it works out for you.
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#include "dsk6713.h" #include "dsk6713_aic23.h" #include "dsk6713_led.h" #include "dsk6713_dip.h" // t a b l e inde x short loop = 0 ; // gain f a c t o r short gain = 10 ; // output b u f f e r Int16 out_buffer[256]; // s i z e o f b u f f e r const short BUFFERLENGTH = 256; // counter f o r b u f f e r int i = 0 ; DSK6713_AIC23_Config config = { \ 0x0017 , /* 0 DSK6713 AIC23 LEFTINVOL*/\ 0x0017 , /* 1 DSK6713 AIC23 RIGHTINVOL*/\ 0x00d8 , /* 2 DSK6713 AIC23 LEFTHPVOL*/\ 0x00d8 , /* 3 DSK6713 AIC23 RIGHTHPVOL*/\ 0x0011 , /* 4 DSK6713 AIC23 ANAPATH*/\ 0x0000 , /* 5 DSK6713 AIC23 DIGPATH*/\ 0x0000 , /* 6 DSK6713 AIC23 POWERDOWN*/\ 0x0043 , /* 7 DSK6713 AIC23 DIGIF*/\ 0x0081 , /* 8 DSK6713 AIC23 SAMPLERATE*/\ 0x0001 /* 9 DSK6713 AIC23 DIGACT*/\ } ; // Lookup t a b l e //Int16 sinetable[8]={0,707,1000,707,0,-707,-1000,-707}; Int16 sine_table[48] = { 0x0000 , 0x10b4 , 0x2120 , 0x30fb , 0x3fff, 0x4dea , 0x5a81 , 0x658b , 0x6ed8 , 0x763f , 0x7ba1 , 0x7ee5 , 0x7ffd , 0x7ee5 , 0x7ba1 , 0x76ef , 0x6ed8 , 0x658b , 0x5a81 , 0x4dea , 0x3fff , 0x30fb , 0x2120 , 0x10b4 , 0x0000 , 0xef4c , 0xdee0 , 0xcf06 , 0xc002 , 0xb216 , 0xa57f , 0x9a75 , 0x9128 , 0x89c1 , 0x845f , 0x811b , 0x8002 , 0x811b , 0x845f , 0x89c1 , 0x9128 , 0x9a76 , 0xa57f , 0xb216 , 0xc002 , 0xcf06 , 0xdee0 , 0xef4c } ; Uint32 fs = DSK6713_AIC23_FREQ_48KHZ ; // main ( ) − Main code rout ine , i n i t i a l i z e s BSL and // runs LED a p p l i c a t i o n void main () { DSK6713_AIC23_CodecHandle hCodec ; // I n i t i a l i z e the board suppor t l i b r a r y , must be f i r s t // BSL c a l l DSK6713_init () ; // I n i t i a l i z e the LED and DIP swi t c h modules o f the BSL DSK6713_LED_init () ; DSK6713_DIP_init () ; // St a r t the codec hCodec = DSK6713_AIC23_openCodec (0, &config ) ; // DIP Swi tch API // DSK6713 DIP get ( Uint32 dipNum) // Return v a lue 0 S p e c i f i e d swi t c h i s o f f // Return v a lue 1 S p e c i f i e d swi t c h i s on // i n f i n i t e loop while ( 1 ) { if (DSK6713_DIP_get(0) == 0) { // turn LED#0 on DSK6713_LED_on( 0 ) ; outbuffer[i] = sinetable[loop] ; // wh i l e ( r e t u r n v a l u e i s not z e ro ) // s e e DSK6713 AIC23 write ( . . . ) // send data to l e f t channel // output e v e ry Ts SW0 while ( !DSK6713_AIC23_write (hCodec , sinetable [loop] * gain ) ) ; // send data to r i g h t channel while ( !DSK6713_AIC23_write (hCodec , sinetable[loop ] * gain ) ) ; i++; if ( i==BUFFERLENGTH) i =0; // check f o r end of t a b l e if ( ++loop > 47) loop = 0 ; } //LED#0 o f f else DSK6713_LED_off(0) ; } //end o f wh i l e (1) } |
Hi, Shankari
i used the avobe program i got errors and warnings for it. But i dint get the required graph for it/
