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Help me, i cant play sine test with Pic16f887 + VS1011

 
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tidushuu



Joined: 29 Sep 2012
Posts: 8

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Help me, i cant play sine test with Pic16f887 + VS1011
PostPosted: Sat Sep 29, 2012 7:16 am     Reply with quote
I starting test sine tone with my vs1011 breakboard, but i didn't hear anything. I dont know my hardware problem or my code.
Anyone did it work plz help me for my project.
Here is my code.
Code:

#include <16F887.h>

#device ADC=8
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8)

#define     XCS  PIN_A0
#define     XDCS  PIN_A2
#define     XRESET  PIN_A1
#define     DREQ  PIN_A3

void VsSineTest();

void main()
{
   setup_spi(SPI_MASTER | SPI_H_TO_L | SPI_CLK_DIV_16 );
   
  VsSineTest();
 
}

void VsSineTest(){
 output_low(XRESET);   
  delay_ms(100);   
  spi_write(0xFF);

 output_high(XCS);
 output_high(XDCS);   
 output_high(XRESET);
  delay_ms(100);         

  output_low(XCS);   
  spi_write(0x02);   
  spi_write(0x00); 
  spi_write(0x08);   
  spi_write(0x20);     
 
   output_high(XCS); 

  while (!input(DREQ));   
                       
   output_low(XDCS);     

  spi_write(0x53);   
  spi_write(0xef);   
  spi_write(0x6e);   
  spi_write(0x44);     
  spi_write(0x00);     
  spi_write(0x00);
  spi_write(0x00);
  spi_write(0x00);
 
  output_high(XDCS) ;
 
  delay_ms (500);           

 
  output_low(XDCS);
  spi_write(0x45);
  spi_write(0x78);
  spi_write(0x69);
  spi_write(0x74);
  spi_write(0x00);
  spi_write(0x00);
  spi_write(0x00);
  spi_write(0x00);
 
   output_high(XDCS) ;

  delay_ms(500);         
} 


Thanks !
Ttelmah



Joined: 11 Mar 2010
Posts: 19394

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PostPosted: Sat Sep 29, 2012 8:19 am     Reply with quote
Obvious comment is, where are you setting the volume?.
The clock rate (if you are not using the standard setting), and volume, must be set after reset. Quote from data sheet:

"After a hardware reset (or at power-up), the user should set such basic software registers as SCI_VOL for volume (and SCI_CLOCKF if the input
clock is anything else than 24.576 MHz) before starting decoding."

Best Wishes
tidushuu



Joined: 29 Sep 2012
Posts: 8

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Work
PostPosted: Sat Sep 29, 2012 8:47 am     Reply with quote
Wow thanks.
I finally made it work, reason as your comment, I didn't set volume on my code.
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