lc72130的应用C程序源代码收音头控制程序(LC72130)//------------------------------------------------------------------------/***************************************************// Tuner, VER 1.0//// COPYRIGHT (C) 2002, Enbia chnology Inc.// Target: 89C5X, PLL : LC72130/LC72130M// AUTHOR: STEVEN LUO//// Revision Histy:// 2000/12/16 - Original Version// 2001/4/3 - V2.0, ported to RTX51TNY////------------------------------------------------------------------------#include
#include
#include
#include
#include "tuner_int.h"
#include "
enm.h"
//---------------------------------------------------------------------------
// Tuner_Ini
alize
//---------------------------------------------------------------------------
void Tuner_Initialize(void){
b_
tep = Re
_EEP
(EE_AMSTEP) & 0x01;
band = Read_EEPROM(EE_BAND) & 0x01;
cur_count[band] = Read_EEPROM(EE_CURCNT_LOW) + Read_EEPROM(EE_CURCNT_HIGH) * 0x100;
Tuner_Set_Frequency_Int();
dwPLL_Shadow_IN2 |= BO2_ON; // Unmute
Write_LC72131(MODE_IN1, dwPLL_Shadow_IN1);
Write_LC72131(MODE_IN2, dwPLL_Shadow_IN2);
}
//---------------------------------------------------------------------------
// Tuner_Shutdown
//---------------------------------------------------------------------------
void Tuner_Shutdown(BOOL bonoff){
if (bonoff){
Write_LC72131(MODE_IN1, (dwPLL_Shadow_IN1 & 0x0fffff) | PLL_OFF_REF);
}
else{
Write_LC72131(MODE_IN1, dwPLL_Shadow_IN1);
}
}
//---------------------------------------------------------------------------
// Tuner_Set_AMStep
//---------------------------------------------------------------------------
BOOL Tuner_Set_AMStep(BYTE ctrl){
if (ctrl != INQUIRE){
b_amstep = ! b_amstep;
Write_EEPROM(EE_AMSTEP, b_amstep);
}
return b_amstep;
}
//---------------------------------------------------------------------------
// Tuner_Set_FMStep
//---------------------------------------------------------------------------
BOOL Tuner_Set_FMStep(BYTE ctrl){
if (ctrl != INQUIRE){
b_fmstep = ! b_fmstep;
}
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return b_fmstep;
}
//---------------------------------------------------------------------------
// Tuner_Set_Band
//---------------------------------------------------------------------------
BYTE Tuner_Set_Band(BYTE ctrl, WORD *freq){
if (ctrl != INQUIRE){
Temp_Mute(1);
if (band != BAND_AM) band = BAND_AM; else band = BAND_FM; // 0: am, 1: fm
Write_EEPROM(EE_BAND, band);
Tuner_Set_Frequency_Int();
dwPLL_Shadow_IN2 |= BO2_ON; // Unmute
Write_LC72131(MODE_IN1, dwPLL_Shadow_IN1);
Write_LC72131(MODE_IN2, dwPLL_Shadow_IN2);
Temp_Mute(0);
}
*freq = (Count_To_Freq());
return band;
}
//---------------------------------------------------------------------------
// Tuner_Set_Mono
//---------------------------------------------------------------------------
BOOL Tuner_Set_Mono(BYTE ctrl){
if (ctrl != INQUIRE){
Temp_Mute(1);
bST_MONO = ! bST_MONO;
dwPLL_Shadow_IN2 &= ~BO3_ON;
if (bST_MONO) {dwPLL_Shadow_IN2 |= BO3_ON;} // Stereo
// Write_LC72131(MODE_IN1, dwPLL_Shadow_IN1);
Write_LC72131(MODE_IN2, dwPLL_Shadow_IN2);
Temp_Mute(0);
}
return bST_MONO;
}
//---------------------------------------------------------------------------
// Tuner_Save_Station
//---------------------------------------------------------------------------
void Tuner_Save_Station(BYTE station){
BYTE ee_addr;
if (station > MAX_PRESET_NUMBER) station = MAX_PRESET_NUMBER;
ee_addr = EE_PRESET_BASE + band * (MAX_PRESET_NUMBER + 1) * 2 + station *2;
Write_EEPROM(ee_addr, cur_count[band]/0x100); Write_EEPROM(ee_addr +1, cur_count[band]&0xff);
}
//---------------------------------------------------------------------------
// Tuner_Restore_Station
//---------------------------------------------------------------------------
WORD Tuner_Restore_Station(BYTE station){
BYTE ee_addr;
Temp_Mute(1);
if (station > MAX_PRESET_NUMBER) station = MAX_PRESET_NUMBER;
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ee_addr = EE_PRESET_BASE + band * (MAX_PRESET_NUMBER + 1) * 2 + station *2;
cur_count[band]= Read_EEPROM(ee_addr) * 0x100 + Read_EEPROM(ee_addr +1);
Tuner_Set_Frequency_Int();
dwPLL_Shadow_IN2 |= BO2_ON; // Unmute
Write_LC72131(MODE_IN1, dwPLL_Shadow_IN1);
Write_LC72131(MODE_IN2, dwPLL_Shadow_IN2);
// save the current count
Write_EEPROM(EE_CURCNT_LOW, cur_count[band] & 0xff); Write_EEPROM(EE_CURCNT_HIGH, cur_count[band] >> 8);
Temp_Mute(0);
return (Count_To_Freq());
}
//---------------------------------------------------------------------------
// Tuner_Set_Frequency
//---------------------------------------------------------------------------
WORD Tuner_Set_Frequency(BYTE ctrl, WORD freq){
BAND_INFO code *pBInfo;
switch(band){
case BAND_AM:
if (b_amstep) pBInfo = &BandInfo_AM_10KHz; else pBInfo = &BandInfo_AM_9KHz; break;
case BAND_FM:
if (b_fmstep) pBInfo = &BandInfo_FM_100KHz; else pBInfo = &BandInfo_FM_50KHz; break;
case BAND_SW:
break;
}
switch (ctrl){
case INQUIRE:
return (Count_To_Freq()); break;
case UP:
cur_count[band] += pBInfo -> CntStep; break;
case DOWN:
cur_count[band] -= pBInfo -> CntStep; break;
case SET:
if ((band == BAND_AM) || (band == BAND_SW)){
//return cur_count[band] * pBInfo -> FRef - 450;
cur_count[band] = (freq + 450) / (pBInfo -> FRef);
}
else {
//return cur_count[band] * ((FM_FREF *100)/1000) - 1070;
cur_count[band] = ((freq + 1070) * 1000) / (FM_FREF *100);
}
break;
}
Tuner_Set_Frequency_Int();
dwPLL_Shadow_IN2 |= BO2_ON; // Unmute
Write_LC72131(MODE_IN1, dwPLL_Shadow_IN1);
Write_LC72131(MODE_IN2, dwPLL_Shadow_IN2);
// save the current count
Write_EEPROM(EE_CURCNT_LOW, cur_count[band] & 0xff); Write_EEPROM(EE_CURCNT_HIGH, cur_count[band] >> 8);
return (Count_To_Freq());
}
//---------------------------------------------------------------------------
// Tuner_Step
//---------------------------------------------------------------------------
WORD Tuner_Step(BYTE ctrl){
电子技术论坛 http://www.elecfans.com 电子发烧友无标题if (ctrl != SET)return Tuner_Set_Frequency(ctrl, 0);}//---------------------------------------------------------------------------// Tuner_S//---------------------------------------------------------------------------int Tuner_Scan(BYTE ctrl){BAND_INFO code *pBInfo;WORD temp;register BYTE j;switch(band){case BAND_AM:if (b_amstep) pBInfo = &BandInfo_AM_10KHz; else pBInfo = &BandInfo_AM_9KHz; break;case BAND_FM:if (b_fmstep) pBInfo = &BandInfo_FM_100KHz; else pBInfo = &BandInfo_FM_50KHz; break;case BAND_SW:break;}if (ctrl == INQUIRE){return (Count_To_Freq());}else if (ctrl == UP){cur_count[band] += pBInfo -> CntStep;}else if (ctrl == DOWN){cur_count[band] -= pBInfo -> CntStep;}// Temp_Mute(1);Tuner_Set_Frequency_Int();Write_LC72131(MODE_IN1, dwPLL_Shadow_IN1);Write_LC72131(MODE_IN2, dwPLL_Shadow_IN2);// Wt PLL Lock -----------------------------------------------------------Pause(1); //for (j=0; j<255; j++){if (N_TUNER_DO)break;}dwPLL_Shadow_IN2 &= DO_MODE_MASK; // set DO mode, end ucdwPLL_Shadow_IN2 |= DO_MODE_END_UC;dwPLL_Shadow_IN1 |= CTE_ON; // IF count startWrite_LC72131(MODE_IN1, dwPLL_Shadow_IN1);Write_LC72131(MODE_IN2, dwPLL_Shadow_IN2);// Wait Gate over -----------------------------------------------------for (j=0; j<10; j++){if (!PIN_TUNER_DO) break; // break when gate endsos_wait2(K_TMO, 1);}// Gate time overtemp = Read_72131() & 0x0fffff;dwPLL_Shadow_IN2 |= BO2_ON; // UnmuteWrite_LC72131(MODE_IN2, dwPLL_Shadow_IN2);// save the current countWrite_EEPROM(EE_CURCNT_LOW, cur_count[band] & 0xff); Write_EEPROM(EE_CURCNT_HIGH, cur_count[band] >> 8);if ((temp >= pBInfo -> IFCntMin) && (temp <= pBInfo -> IFCntMax)){return -(Count_To_Freq());}else {return (Count_To_Freq());}http://bbs.elecfans.com 电子技术论坛 http://www.elecfans.com 电子发烧友无标题}//---------------------------------------------------------------------------// Tuner_Get_Stereo//---------------------------------------------------------------------------BOOL Tuner_Get_Stereo(void){if (band == BAND_FM) {return (!(Read_72131() & 0x800000));}elsereturn 0;}//---------------------------------------------------------------------------// Tuner_Set_Frequency_Int//---------------------------------------------------------------------------static void Tuner_Set_Frequency_Int(void){BAND_INFO code *pBInfo;switch(band){case BAND_AM:if (b_amstep) pBInfo = &BandInfo_AM_10KHz; else pBInfo = &BandInfo_AM_9KHz; break;case BAND_FM:if (b_fmstep) pBInfo = &BandInfo_FM_100KHz; else pBInfo = &BandInfo_FM_50KHz; break;case BAND_SW:break;}dwPLL_Shadow_IN1 = 0; dwPLL_Shadow_IN2 = 0;// Check Boundary -----------------------------------------------------if (cur_count[band] > pBInfo -> CntMax){cur_count[band] = pBInfo -> CntMin; // Cycling}else if (cur_count[band] < pBInfo -> CntMin){cur_count[band] = pBInfo -> CntMax; // Cycling}// IN2 Mode -----------------------------------------------------------dwPLL_Shadow_IN2 |= GATE_TIME_32MS; // Gate Time = 4msdwPLL_Shadow_IN2 |= 0x100000; // IFSif (band == BAND_AM){ // Set BanddwPLL_Shadow_IN2 |= BO1_ON;}else if (band == BAND_FM){dwPLL_Shadow_IN2 |= BO4_ON;}if (!bST_MONO) {dwPLL_Shadow_IN2 |= BO3_ON;} // Stereo// dwPLL_Shadow_IN2 &= DO_MODE_MASK;dwPLL_Shadow_IN2 |= DO_MODE_UNLOCK; //// IN1 Mode -----------------------------------------------------------if (band == BAND_AM){ // Set FrequencydwPLL_Shadow_IN1 |= (cur_count[band] << 4);}else {dwPLL_Shadow_IN1 |= cur_count[band];}dwPLL_Shadow_IN1 |= pBInfo -> DivMode; // Set DIv ModedwPLL_Shadow_IN1 |= pBInfo -> DiefPara; // Set DIV Ref Para}//---------------------------------------------------------------------------// Count_To_Freq//---------------------------------------------------------------------------static WORD Count_To_Freq(void){BAND_INFO code *pBInfo;http://bbs.elecfans.com 电子技术论坛 http://www.elecfans.com 电子发烧友无标题switch(band){case BAND_AM:if (b_amstep) pBInfo = &BandInfo_AM_10KHz; else pBInfo = &BandInfo_AM_9KHz; break;case BAND_FM:if (b_fmstep) pBInfo = &BandInfo_FM_100KHz; else pBInfo = &BandInfo_FM_50KHz; break;case BAND_SW:break;}if ((band == BAND_AM) || (band == BAND_SW)){return cur_count[band] * pBInfo -> FRef - 450;}else {return cur_count[band] * ((FM_FREF *100)/1000) - 1070;}}#define LC72131_DELAY() {_nop_(); _nop_(); _nop_();}//---------------------------------------------------------------------------// Write_LC72131_Addr// addr: the addr of the control register// value: the valude to set to//---------------------------------------------------------------------------static void Write_LC72131_Addr(BYTE addr){register BYTE i;PIN_TUNER_CE = 0;PIN_TUNER_CL = 1;LC72131_DELAY();for (i = 8; i>0; --i){PIN_TUNER_CL = 0;LC72131_DELAY();if (addr & 0x01) PIN_TUNER_DI=1; else PIN_TUNER_DI=0;addr >>= 1;LC72131_DELAY();PIN_TUNER_CL = 1;LC72131_DELAY();}}//---------------------------------------------------------------------------// Write_LC72131// addr: the addr of the control register// value: the valude to set to//---------------------------------------------------------------------------static void Write_LC72131(BYTE addr, DWORD value){register BYTE i;// Send the addr byte fit ------------//Write_LC72131_Addr(addr);PIN_TUNER_CE = 1;LC72131_DELAY();// Send the control value in following------------//for (i = 24; i>0; --i){PIN_TUNER_CL = 0;LC72131_DELAY();if (value & 0x01) PIN_TUNER_DI=1; else PIN_TUNER_DI=0;value >>= 1;LC72131_DELAY();PIN_TUNER_CL = 1;http://bbs.elecfans.com 电子技术论坛 http://www.elecfans.com 电子发烧友无标题LC72131_DELAY();}PIN_TUNER_CE = 0;}//---------------------------------------------------------------------------// Read_LC72131// addr: the addr of the control register// return value//---------------------------------------------------------------------------static DWORD Read_72131(void){register BYTE i;DWORD temp = 0;// Send the addr byte first ------------//Write_LC72131_Addr(MODE_OUT);PIN_TUNER_CE = 1;LC72131_DELAY();// read the value dword ------------//for (i=24; i>0; --i){PIN_TUNER_CL = 0;LC72131_DELAY();temp <<= 1;if (PIN_TUNER_DO) temp |= 1;PIN_TUNER_CL = 1;LC72131_DELAY();}PIN_TUNER_CE = 0;return temp;}头文件如下：#ifndef __TUNER_INT_H__#define __TUNER_INT_H__#include
// ----------------------------------------------------------------
// Control Pins
// ----------------------------------------------------------------
extern BOOL PIN_TUNER_DO;
extern BOOL PIN_TUNER_CL;
extern BOOL PIN_TUNER_DI;
extern BOOL PIN_TUNER_CE;
// use 24c02, 0x80 - 0xff
enum TUNER_EE {
EE_AMSTEP = 0x80,
EE_BAND,
EE_CURCNT_LOW,
EE_CURCNT_HIGH,
EE_PRESET_BASE // To store the preset station
};
#define MAX_PRESET_NUMBER 0x29 // can store 20 channels for e
h band
// -------------------------------------------------------------
// Tuner Modle: T-989 of Guangzhou Youshen
// -------------------------------------------------------------
// work mode type define:
#define MODE_IN1 0x28
#define MODE_IN2 0x29
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#define MODE_OUT 0x2a
#define CTE_ON 0x040000
#define IOC1 0x000001
#define IOC2 0x000002
#define IO1 0x000004
#define IO2 0x000008
#define BO1_ON 0x000010
#define BO2_ON 0x000020
#define BO3_ON 0x000040
#define BO4_ON 0x000080
#define DO_MODE_UNLOCK 0x000200
#define DO_MODE_END_UC 0x000400
#define DO_MODE_MASK ~0x000e00
// ----------------------------------------
// DEVIDER mode type define
// ----------------------------------------
#define AM_DV_MODE 0x000000 // 16 BIT
#define SW_DV_MODE 0x020000 // 20
#define FM_DV_MODE 0x020000 // 20 BIT SWALLOW
#define AM_DV_REF_9KHz 0x900000 // 9 KHZ
#define AM_DV_REF_10KHz 0x800000 // 10 KHZ
#define SW_DV_REF 0xa00000 // 5 KHZ
#define FM_DV_REF 0x300000 // 25 KHZ
#define PLL_OFF_REF 0xe00000 // PLL inhibit and OSC stop.
// ----------------------------------------
// IF Count
// ----------------------------------------
#define GATE_TIME 32
#define GATE_TIME_32MS 0x020000 //
#define GATE_TIME_4MS 0x000000
#define GATE_TIME_8MS 0x010000
#define IFS 0x100000
#define AM_IF_CNT 450*GATE_TIME // 450KH;
#define AM_IF_CNT_MIN AM_IF_CNT - AM_IF_CNT*0.01
#define AM_IF_CNT_MAX AM_IF_CNT + AM_IF_CNT*0.01
#define SW_IF_CNT 450*GATE_TIME // 450KH;
#define SW_IF_CNT_MIN SW_IF_CNT - SW_IF_CNT*0.01
#define SW_IF_CNT_MAX SW_IF_CNT + SW_IF_CNT*0.01
#define FM_IF_CNT 10700*GATE_TIME // 10.7 MH;
#define FM_IF_CNT_MIN FM_IF_CNT - FM_IF_CNT*0.01
#define FM_IF_CNT_MAX FM_IF_CNT + FM_IF_CNT*0.01
// ----------------------------------------
// Frequence Refrence
// ----------------------------------------
#define AM_FREF_9KHz 9 // 9khz
#define AM_FREF_10KHz 10 // 10khz
#define SW_FREF 5 // 5khz
#define FM_FREF (25*2) // Fref=25*2 khz
// Frequence Range
#define AM_MIN_9KHz 522 // KHZ
#define AM_MAX_9KHz 1611 // KHZ
#define AM_MIN_10KHz 530 // KHZ
#define AM_MAX_10KHz 1610 // KHZ
#define SW_MIN 1700 // KHZ
#define SW_MAX 25000 // KHZ
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#define FM_MIN 8700 // 10KHZ
#define FM_MAX 10800 // 10KHZ
// Frequence Counter Range
#define AM_CNT_MIN_9KHz ((AM_MIN_9KHz + 450)/9)
#define AM_CNT_MAX_9KHz ((AM_MAX_9KHz + 450)/9)
#define AM_CNT_MIN_10KHz ((AM_MIN_10KHz + 450)/10)
#define AM_CNT_MAX_10KHz ((AM_MAX_10KHz + 450)/10)
#define SW_CNT_MIN ((SW_MIN + 450)/SW_FREF)
#define SW_CNT_MAX ((SW_MAX + 450)/SW_FREF)
#define FM_CNT_MIN ((FM_MIN + 1070)/((FM_FREF *100)/1000))
#define FM_CNT_MAX ((FM_MAX + 1070)/((FM_FREF *100)/1000))
// ----------------------------------------
// Search Step
// ----------------------------------------
#define AM_CNT_STEP 1 // F_step=1*5khz
#define SW_CNT_STEP 1 // F_step=1*5khz
#define FM_CNT_STEP_100KHz 2 // F_step=2*50khz when Fref=25khz
#define FM_CNT_STEP_50KHz 1 // F_step=50khz when Fref=25khz
typedef struct {
DWORD DivMode;
DWORD DivRefPara;
WORD IFCntMax;
WORD IFCntMin;
BYTE FRef;
WORD CntMax;
WORD CntMin;
BYTE CntStep;
}BAND_INFO;
enum {
BAND_AM,
BAND_FM,
BAND_SW
};
static BAND_INFO code BandInfo_AM_9KHz = {AM_DV_MODE, AM_DV_REF_9KHz, AM_IF_CNT_MAX, AM_IF_CNT_MIN,
AM_FREF_9KHz, AM_CNT_MAX_9KHz, AM_CNT_MIN_9KHz, AM_CNT_STEP};
static BAND_INFO code BandInfo_AM_10KHz = {AM_DV_MODE, AM_DV_REF_10KHz, AM_IF_CNT_MAX, AM_IF_CNT_MIN,
AM_FREF_10KHz, AM_CNT_MAX_10KHz, AM_CNT_MIN_10KHz, AM_CNT_STEP};
static BAND_INFO code BandInfo_FM_100KHz = {FM_DV_MODE, FM_DV_REF, FM_IF_CNT_MAX, FM_IF_CNT_MIN, FM_FREF,
FM_CNT_MAX, FM_CNT_MIN, FM_CNT_STEP_100KHz};
static BAND_INFO code BandInfo_FM_50KHz = {FM_DV_MODE, FM_DV_REF, FM_IF_CNT_MAX, FM_IF_CNT_MIN, FM_FREF,
FM_CNT_MAX, FM_CNT_MIN, FM_CNT_STEP_50KHz};
static BAND_INFO code BandInfo_SW = {SW_DV_MODE, SW_DV_REF, SW_IF_CNT_MAX, SW_IF_CNT_MIN, SW_FREF,
SW_CNT_MAX, SW_CNT_MIN, SW_CNT_STEP};
// ----------------------------------------------------------------
// Variables
// ----------------------------------------------------------------
static DWORD idata dwPLL_Shadow_IN1;
static DWORD idata dwPLL_Shadow_IN2;
static WORD idata cur_count[3]; // Current count
static BOOL bST_MONO;
static BOOL b_amstep;
static BOOL b_fmstep = 1;
static BYTE idata band;
// ----------------------------------------------------------------
// external functions
// ----------------------------------------------------------------
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static void Tuner_Set_Frequency_Int(void);
static void Write_LC72131_Addr(BYTE addr);
static DWORD Read_72131(void);
static void Write_LC72131(BYTE addr, DWORD value);
static WORD Count_To_Freq(void);
extern void Pause(BYTE);
extern BOOL Write_EEPROM(BYTE, BYTE);
extern BYTE Read_EEPROM(BYTE);
extern void Temp_Mute(BOOL bOnOff);
#endif