FM模块发射模块KT0803L IIC驱动工程

#include "KT_TXdrv.h" #include "I2C.h" uchar IAL; // Input Audio Level uchar TRL; // Transmission Range Level void Delay_ms(uint z) { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void KT_Bus_Write(uchar Register_Address, uchar Byte_Data) { I2C_Byte_Write(KT_TXw_address,Register_Address,Byte_Data); } uchar KT_Bus_Read(uchar Register_Address) { return( I2C_Byte_Read(KT_TXr_address, Register_Address) ); } //----------------------------------------------------------------------------- // Initialization //----------------------------------------------------------------------------- uchar KT_TXPreInit(void) { uchar i,regx; #ifdef PA_CTRL regx=KT_Bus_Read(0x13); KT_Bus_Write(0x13,regx | 0x04); #endif for (i=0;i<INIT_FAIL_TH;i++) { Delay_ms(5); regx=KT_Bus_Read(0x22); // if (regx!=0x01) continue; break; } if (i==INIT_FAIL_TH) return(0); #ifdef X32P768K KT_Bus_Write(0x1E,0x40); regx=KT_Bus_Read(0x17); KT_Bus_Write(0x17,regx & 0xF7); #endif #ifdef X38K KT_Bus_Write(0x1E,0x80); regx=KT_Bus_Read(0x17); KT_Bus_Write(0x17,regx & 0xF7); regx=KT_Bus_Read(0x1F); KT_Bus_Write(0x1F,regx & 0xFC); KT_Bus_Write(0x20,0x01); regx=KT_Bus_Read(0x21); KT_Bus_Write(0x21,regx & 0xFC | 0x02); KT_Bus_Write(0x22,0x40); #endif #ifdef X7P6M KT_Bus_Write(0x1E,0x42); regx=KT_Bus_Read(0x17); KT_Bus_Write(0x17,regx | 0x08); #endif #ifdef R7P6M KT_Bus_Write(0x1E,0x62); #endif #ifdef R7P6MPIN2 regx=KT_Bus_Read(0x17); KT_Bus_Write(0x17,regx | 0x08); KT_Bus_Write(0x1E,0x42); regx=KT_Bus_Read(0x0D); KT_Bus_Write(0x0D,regx | 0x02); #endif #ifdef R12M KT_Bus_Write(0x1E,0x63); #endif #ifdef R12MPIN2 regx=KT_Bus_Read(0x17); KT_Bus_Write(0x17,regx | 0x08); KT_Bus_Write(0x1E,0x43); regx=KT_Bus_Read(0x0D); KT_Bus_Write(0x0D,regx | 0x02); #endif #ifdef R24M KT_Bus_Write(0x1E,0x67); #endif return(1); } uchar KT_TXInit (void) { uchar i,regx; for (i=0;i<INIT_FAIL_TH;i++) { Delay_ms(500); regx=KT_Bus_Read(0x0F); //Read power-up indicator if ((regx&0x50)!=0x50) continue; break; } if (i==INIT_FAIL_TH) return(0); /* old patch KT_Bus_Write(0x0A, 0x9F); reg9 = KT_Bus_Read(0x09); KT_Bus_Write(0x09, reg9 | 0x30); reg4 = KT_Bus_Read(0x04); KT_Bus_Write( 0x04, reg4 | 0x0C); reg10 = KT_Bus_Read( 0x10); KT_Bus_Write( 0x10, (reg10 & 0xE7) | 0x10); regF = KT_Bus_Read(0x0F); if ((regF & 0x40) != 0x40) // check PLL lock { reg7 = KT_Bus_Read(0x07); KT_Bus_Write( 0x07, (reg7 & 0xF9) | 0x02); KT_Bus_Write( 0x07, (reg7 & 0xF9)); } */ regx = KT_Bus_Read( 0x10); // PGA Mode = 1dB step KT_Bus_Write( 0x10, (regx & 0xFE) | 0x01); KT_TXMono(STEREO); KT_TXPETCS(75); // Pre-Emphasis Time-Constant is 75us KT_TXAudio_PGA(IAL); // Audio PGA is -15dB KT_TXRFGAIN(TRL,PA_BIAS); // RF Gain is Max level return(1); } uchar KT_TXStandby(void) { uchar regB; regB = KT_Bus_Read (0x0B); KT_Bus_Write(0x0B, regB | 0x80); return(1); } uchar KT_TXWakeUp(void) { uchar regB; regB = KT_Bus_Read (0x0B); KT_Bus_Write(0x0B, regB & 0x7F); return(KT_TXInit()); } //----------------------------------------------------------------------------- // KT_TXMute //----------------------------------------------------------------------------- // void KT_TXMute (void) { uchar reg2; reg2 = KT_Bus_Read( 0x02); KT_Bus_Write( 0x02, reg2 | 0x08); } //----------------------------------------------------------------------------- // KT0806 Mute Disable //----------------------------------------------------------------------------- // void KT_TXUnMute (void) { uchar reg2; reg2 = KT_Bus_Read( 0x02); KT_Bus_Write( 0x02, reg2 & 0xF7); } //----------------------------------------------------------------------------- // KT_TXPETCS //----------------------------------------------------------------------------- //Pre-Emphasis Time-Constant Set // void KT_TXPETCS (uchar Pre_Emphasis_Value) // KT0806 Pre-Emphasis Time-Constant Set { uchar reg2; reg2 = KT_Bus_Read( 0x02); if( Pre_Emphasis_Value == 50 ) { KT_Bus_Write( 0x02, reg2 | 0x01); // Pre-Emphasis Time-Constant = 50us } if( Pre_Emphasis_Value == 75 ) { KT_Bus_Write( 0x02, reg2 & 0xFE); // Pre-Emphasis Time-Constant = 75us } } //----------------------------------------------------------------------------- // KT_TXFre //----------------------------------------------------------------------------- void KT_TXTune (uint Frequency) // Exemple :91.55MHz---> *Freqency = 9155; { uchar reg1,reg2; Frequency = Frequency / 5; KT_Bus_Write( 0x00, (Frequency & 0x01FE) >>1); reg1 = KT_Bus_Read( 0x01); KT_Bus_Write( 0x01, (reg1 & 0xF8 ) | ((Frequency & 0x0E00) >> 9) ); reg2 = KT_Bus_Read( 0x02); if ( Frequency & 0x0001) // if frequency = XX.X5 MHz { KT_Bus_Write( 0x02, reg2 | 0x80); } else { KT_Bus_Write( 0x02, reg2 & 0x7F); } } //----------------------------------------------------------------------------- // KT_TXPGA //----------------------------------------------------------------------------- void KT_TXAudio_PGA (uchar PGA_Value) // Audio Gain range is 0-27 { uchar reg1,reg4,temp; if(PGA_Value <= 15) { temp = 15 - PGA_Value; reg1 = KT_Bus_Read( 0x01); KT_Bus_Write( 0x01, (reg1 & 0xC7) | ((temp & 0x1C) << 1)); reg4 = KT_Bus_Read( 0x04); KT_Bus_Write( 0x04, (reg4 & 0xCF) | ((temp & 0x03) << 4)); } else { temp = 4 + PGA_Value; reg1 = KT_Bus_Read( 0x01); KT_Bus_Write( 0x01, (reg1 & 0xC7) | ((temp & 0x1C) << 1)); reg4 = KT_Bus_Read( 0x04); KT_Bus_Write( 0x04, (reg4 & 0xCF) | ((temp & 0x03) << 4)); } } //----------------------------------------------------------------------------- // KT_TXRFGAIN //----------------------------------------------------------------------------- void KT_TXRFGAIN (uchar rf_gain, uchar pa_bias) // RF Gain range is 0-15 { uchar reg1,reg2,regE,reg13; regE = KT_Bus_Read( 0x0E); KT_Bus_Write( 0x0E, (regE & 0xFD) | pa_bias<<1); reg1 = KT_Bus_Read( 0x01); KT_Bus_Write( 0x01, (reg1 & 0x3F) | ((rf_gain & 0x03) << 6) ); reg13 = KT_Bus_Read( 0x13); KT_Bus_Write( 0x13, (reg13 & 0x7F) | ((rf_gain & 0x04) << 5)); reg2 = KT_Bus_Read( 0x02); KT_Bus_Write( 0x02, (reg2 & 0xBF) | ((rf_gain & 0x08) << 3)); } /* //----------------------------------------------------------------------------- // KT_TXBass //----------------------------------------------------------------------------- void KT_TXBass (uchar bass_value) // setting KT0806 Bass level (0-3) { uchar reg4; reg4 = KT_Bus_Read( 0x04); KT_Bus_Write( 0x04, (reg4 & 0xFC) | bass_value); } */ //----------------------------------------------------------------------------- // KT_TXMono //----------------------------------------------------------------------------- void KT_TXMono (uchar forcemono) // setting mono or stereo { uchar reg4; reg4 = KT_Bus_Read( 0x04); KT_Bus_Write( 0x04, (reg4 & 0xBF) | (forcemono<<6) ); } //----------------------------------------------------------------------------- // KT_TXPA_PowerDown //----------------------------------------------------------------------------- void KT_TXPA_PowerDown (void) // Power Amplifier Power Down { uchar regB; regB = KT_Bus_Read( 0x0B); KT_Bus_Write( 0x0B, regB | 0x20); } //----------------------------------------------------------------------------- // KT_TXPA_PowerOn //----------------------------------------------------------------------------- void KT_TXPA_PowerOn (void) // Power Amplifier Power On { uchar regB; regB = KT_Bus_Read( 0x0B); KT_B