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AN3959 датащи(PDF) 53 Page - STMicroelectronics

номер детали AN3959
подробное описание детали  The purpose of this application note is to describe
PDF  65 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3959 датащи(HTML) 53 Page - STMicroelectronics

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AN3959
Examples of code (TV SoC)
Doc ID 022081 Rev 3
53/65
8.2
FFX381X_Sample.C
#include "FFX38X_Sample.h"
/* This is the reference source code of STA381BWX series FFX
amplifier
function reference:
I2Cm_Tx(&valueReg,RegAddress,1,DeviceAddress);//write the data to
I2C register,DeviceAddress=FFX_I2C_ADDR
I2Cm_Rx(&valueReg,RegAddress,1,DeviceAddress);//Read the data
from I2C register,DeviceAddress=FFX_I2C_ADDR
*/
unsigned char
oldMasterVolume;
unsigned char
oldLeftVolume;
unsigned char
oldRightVolume;
unsigned char
oldSubWooferVolume;
unsigned char
oldMute;
unsigned char MUTEVolSave;
unsigned char I2C_buf1;
/******************************************************************
Global Function Declarations.
*******************************************************************
/
unsigned char
STA381BWX_EQ[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0
x00,0x00,0x40,0x00,0x00};
/*
Intial the EQ curve for coefficient data Write
Read Filter data to STA381_EQ[],Filter address FilterIndex=0~4
*/
void STA381BWX_CoefficientRead(unsigned char FilterIndex){
unsigned char STA381BWX_tempj;
//clear 0x17~0x25 IIC register
for(STA381BWX_tempj=0;STA381BWX_tempj<15;STA381BWX_tempj++){
I2C_buf1=0x00;
I2Cm_Tx(&I2C_buf1,(0x17+STA381BWX_tempj),1,FFX_I2C_ADDR);
}
//Set coefficient data address



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