QN8027 FM发射模块和QN8027的开发资料和程序源码

ID:185311 · 发表于 2017-4-1 11:19

QN8027 FM发射模块的资料和程序源码，还有QN8027开发资料

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For C51

Before using this code:
- Make sure I2C address is matching datasheet
- If i2c driver existed, then just ignore qnio.c/h
- Modify QND_Deley(ms) to get accurate platform related miliseconds delay,
otherwise all chip's functionality may not working properly
- Detail please read related doc or get FAE's help

#include "qndriver.h"
extern UINT8 QND_ReadReg(UINT8 adr);
extern UINT8 QND_WriteReg(UINT8 adr, UINT8 value);
#define R_TXRX_MASK 0xd0
UINT8 S_XDATA qnd_RSSIns = 255;
UINT8 S_XDATA qnd_Crystal = QND_CRYSTAL_DEFAULT;
UINT8 S_XDATA qnd_RSSIn[QND_BAND_NUM];
UINT8 S_XDATA qnd_PrevMode;
UINT8 S_XDATA qnd_Country = COUNTRY_CHINA ;
UINT16 S_XDATA qnd_CH_START = 7600;
UINT16 S_XDATA qnd_CH_STOP = 10800;
UINT8 S_XDATA qnd_CH_STEP = 1;
UINT8 qnd_ClearScanFlag = 0;
UINT16 qnd_ClearChannel = 0;
UINT8 qnd_FirstScan = 1;
UINT8 S_XDATA qnd_AutoScanAll;
UINT8 S_XDATA qnd_IsStereo;
UINT8 S_XDATA qnd_ChCount;
UINT16 S_XDATA qnd_RSSInBB[QND_BAND_NUM+1];
UINT16 S_XDATA qnd_ChList[QN_CCA_MAX_CH];
UINT8 S_XDATA qnd_StepTbl[3]={5,10,20};
QND_SeekCallBack qnd_CallBackFunc = 0;
/**********************************************************************
void QNF_RXInit()
**********************************************************************
Description: set to SNR based MPX control. Call this function before
tune to one specific channel
Parameters:
None
Return Value:
None
**********************************************************************/
void QNF_RXInit()
{
QNF_SetRegBit(77,0x80,0x80); // Set to High-Z
QNF_SetRegBit(40,0x80,0x80); // Set SNR as criteria for MPX control
QNF_SetRegBit(64,0x3f,SMSTART_VAL); //set SMSTART
QNF_SetRegBit(66,0x3f,HCCSTART_VAL); //set HCCSTART
QNF_SetRegBit(65,0x7f,SNCSTART_VAL); //set SNCSTART
}
/**********************************************************************
void QNF_SetMute(UINT8 On)
**********************************************************************
Description: set register specified bit
Parameters:
On: 1: mute, 0: unmute
Return Value:
None
**********************************************************************/
void QNF_SetMute(UINT8 On)
{
if(On)
{
QNF_SetRegBit(REG_PD2, 0x0c, 0x0c); // mute/unmute to avoid noise
// QNF_SetRegBit(3, 0x80, 0x80); // mute/unmute to avoid noise
}
else
{
QND_Delay(QND_DELAY_BEFORE_UNMUTE);
QNF_SetRegBit(REG_PD2, 0x0c, 0x00); // mute/unmute to avoid noise
// QND_Delay(50);
// QNF_SetRegBit(3, 0x80, 0x00); // mute/unmute to avoid noise
}
}
/**********************************************************************
void QNF_SetRegBit(UINT8 reg, UINT8 bitMask, UINT8 data_val)
**********************************************************************
Description: set register specified bit
Parameters:
reg: register that will be set
bitMask: mask specified bit of register
data_val: data will be set for specified bit
Return Value:
None
**********************************************************************/
void QNF_SetRegBit(UINT8 reg, UINT8 bitMask, UINT8 data_val)
{
UINT8 temp;
temp = QND_ReadReg(reg);
temp &= (UINT8)(~bitMask);
temp |= data_val & bitMask;
// temp |= data_val;
QND_WriteReg(reg, temp);
}
/**********************************************************************
void QNF_InitRSSInBB()
**********************************************************************
Description: init RSSI noise floor band
Parameters:
None
Return Value:
None
**********************************************************************/
void QNF_InitRSSInBB()
{
UINT8 i,d2,d,step;
UINT16 d1;
// get frequency leap step
step = qnd_StepTbl[qnd_CH_STEP];
// total frequency span
d1 = qnd_CH_STOP - qnd_CH_START;
// make sure d2 value <= 255, normally QND_BAND_NUM should < 10
d2 = step * QND_BAND_NUM;
d = d1/d2;
// first one should be CH_START
qnd_RSSInBB[0] = qnd_CH_START;
for(i=1; i<QND_BAND_NUM; i++) {
qnd_RSSInBB[i] = qnd_RSSInBB[i-1] + d * step;
}
// last one set one more step higher for convenience
qnd_RSSInBB[i] = qnd_CH_STOP+step;
}
/**********************************************************************
UINT8 QNF_GetRSSInBandIndex(UINT16 chfreq)
**********************************************************************
Description: get band index
Parameters:
chfreq: channel frequency (10Khz unit, eg: for 101.10Mhz, input 10110)
Return Value: band index for input CH frequency
**********************************************************************/
UINT8 QNF_GetRSSInBandIndex(UINT16 chfreq)
{
UINT8 i;
for(i=0; i<QND_BAND_NUM; i++) {
if(chfreq < qnd_RSSInBB[i+1]) {
// finally come to here, if no wrong input
return i;
}
}
}
/**********************************************************************
UINT8 QNF_GetRSSIn(UINT16 chFreq)
**********************************************************************
Description: get RSSI noise floor
Parameters:
chfreq: channel frequency (10Khz unit, eg: for 101.10Mhz, input 10110)
Return Value:
the RSSI noise floor
**********************************************************************/
UINT8 QNF_GetRSSIn(UINT16 chFreq)
{
UINT8 idx;
idx = QNF_GetRSSInBandIndex(chFreq);
return qnd_RSSIn[idx];
}
/**********************************************************************
UINT16 QNF_GetCh()
**********************************************************************
Description: get current channel frequency
Parameters:
None
Return Value:
channel frequency
**********************************************************************/
UINT16 QNF_GetCh()
{
UINT8 tCh;
UINT8 tStep;
UINT16 ch = 0;
// set to reg: CH_STEP
tStep = QND_ReadReg(CH_STEP);
tStep &= CH_CH;
ch = tStep ;
tCh= QND_ReadReg(CH);
ch = (ch<<8)+tCh;
return CHREG2FREQ(ch);
}
/**********************************************************************
UINT8 QNF_SetCh(UINT16 freq)
**********************************************************************
Description: set channel frequency
Parameters:
freq: channel frequency to be set
Return Value:
1: success
**********************************************************************/
UINT8 QNF_SetCh(UINT16 freq)
{
// calculate ch parameter used for register setting
UINT8 tStep;
UINT8 tCh;
UINT16 f;
f = FREQ2CHREG(freq);
// set to reg: CH
tCh = (UINT8) f;
QND_WriteReg(CH, tCh);
// set to reg: CH_STEP
tStep = QND_ReadReg(CH_STEP);
tStep &= ~CH_CH;
tStep |= ((UINT8) (f >> 8) & CH_CH);
QND_WriteReg(CH_STEP, tStep);
return 1;
}
/**********************************************************************
void QNF_ConfigScan(UINT16 start,UINT16 stop, UINT8 step)
**********************************************************************
Description: config start, stop, step register for FM/AM CCA or CCS
Parameters:
start
Set the frequency (10kHz) where scan to be started,
eg: 7600 for 76.00MHz.
stop
Set the frequency (10kHz) where scan to be stopped,
eg: 10800 for 108.00MHz
step
1: set leap step to (FM)100kHz / 10kHz(AM)
2: set leap step to (FM)200kHz / 1kHz(AM)
0: set leap step to (FM)50kHz / 9kHz(AM)
Return Value:
None
**********************************************************************/
void QNF_ConfigScan(UINT16 start,UINT16 stop, UINT8 step)
{
// calculate ch para
UINT8 tStep = 0;
UINT8 tS;
UINT16 fStart;
UINT16 fStop;
fStart = FREQ2CHREG(start);
fStop = FREQ2CHREG(stop);
// set to reg: CH_START
tS = (UINT8) fStart;
QND_WriteReg(CH_START, tS);
tStep |= ((UINT8) (fStart >> 6) & CH_CH_START);
// set to reg: CH_STOP
tS = (UINT8) fStop;
QND_WriteReg(CH_STOP, tS);
tStep |= ((UINT8) (fStop >> 4) & CH_CH_STOP);
// set to reg: CH_STEP
tStep |= step << 6;
QND_WriteReg(CH_STEP, tStep);
}
/**********************************************************************
void QNF_SetAudioMono(UINT8 modemask, UINT8 mode)
**********************************************************************
Description: Set audio output to mono.
Parameters:
modemask: mask register specified bit
mode
QND_RX_AUDIO_MONO: RX audio to mono
QND_RX_AUDIO_STEREO: RX audio to stereo
QND_TX_AUDIO_MONO: TX audio to mono
QND_TX_AUDIO_STEREO: TX audio to stereo
Return Value:
None
**********************************************************************/
void QNF_SetAudioMono(UINT8 modemask, UINT8 mode)
{
if (mode == QND_TX_AUDIO_MONO||mode == QND_RX_AUDIO_MONO)
{
// set to 22.5K (22.5/0.69 ~= 32)
QND_WriteReg(TX_FDEV, 0x20);
}
else
{
// back to default
QND_WriteReg(TX_FDEV, 0x6c);
}
QNF_SetRegBit(SYSTEM2,modemask, mode);
}
/**********************************************************************
void QNF_UpdateRSSIn(UINT16 chFreq)
**********************************************************************
Description: update the qnd_RSSIns and qnd_RSSIn value
Parameters:
None
Return Value:
None
**********************************************************************/
void QNF_UpdateRSSIn(UINT16 chFreq)
{
UINT8 i,j;
UINT8 r0;
UINT16 ch;
// backup SYSTEM1 register
r0 = QND_ReadReg(SYSTEM1);
if(!chFreq)
{
for (i = 0 ; i < QND_BAND_NUM; i++)
{
ch = QND_TXClearChannelScan(qnd_RSSInBB[i], qnd_RSSInBB[i+1]-qnd_StepTbl[qnd_CH_STEP], qnd_CH_STEP, 15);
qnd_RSSIn[i] = QND_GetRSSI(ch);
if (qnd_RSSIns > qnd_RSSIn[i])
{
qnd_RSSIns = qnd_RSSIn[i];
qnd_ClearChannel = ch;
}
}
}
else
{
i = QNF_GetRSSInBandIndex(chFreq);
ch = QND_TXClearChannelScan(qnd_RSSInBB[i], qnd_RSSInBB[i+1]-qnd_StepTbl[qnd_CH_STEP], qnd_CH_STEP, 15);
qnd_RSSIn[i] = QND_GetRSSI(ch);
}
// restore SYSTEM1 register
QND_WriteReg(SYSTEM1, r0);
}
/**********************************************************************
int QND_Delay()
**********************************************************************
Description: Delay for some ms, to be customized according to user
application platform
Parameters:
ms: ms counts
Return Value:
None
**********************************************************************/
void QND_Delay(UINT16 ms)
{
UINT16 i,k;
for(i=0; i<3000;i++)
{
for(k=0; k<ms; k++)
{
}
}
}
/**********************************************************************
UINT8 QND_GetRSSI(UINT16 ch)
**********************************************************************
Description: Get the RSSI value
Parameters:
Return Value:
RSSI value of the channel setted
**********************************************************************/
UINT8 QND_GetRSSI(UINT16 ch)
{
UINT8 delayTime;
{
QND_SetSysMode(QND_MODE_RX|QND_MODE_FM);
delayTime = QND_READ_RSSI_DELAY;
}
QNF_SetCh(ch);
QNF_SetRegBit(SYSTEM1, CCA_CH_DIS, CCA_CH_DIS);
QND_Delay(delayTime);
return QND_ReadReg(RSSISIG);
}
/**********************************************************************
void QN_ChipInitialization()
**********************************************************************
Description: chip first step initialization, called only by QND_Init()
Parameters:
None
Return Value:
None
**********************************************************************/
void QN_ChipInitialization()
{
QND_WriteReg(0x01,0x89); //sw reset
QND_WriteReg(0x50,0x00);
QND_WriteReg(0x01,0x49); //recalibrate
QND_WriteReg(0x01,0x09);
QND_Delay(40); //wait more than 400ms
QND_WriteReg(0x3C,0x89); //for RDS SYNC
QNF_SetRegBit(0x49,0xc0, 0x00);
QND_WriteReg(0x4a,0xba);
QND_WriteReg(0x5c,0x05);
QND_WriteReg(0x52,0x0c);
QNF_SetRegBit(49,0x30,0x00); //minimize rxagc_timeout; WQF0717
QND_WriteReg(0x38,0x2d); //for SNR CCA ccnclk2=2'b00
QND_WriteReg(0x39,0x88); //for SNR CCA ccnclk1=2'b00
QND_WriteReg(0x52,0x0c); //mute
QND_WriteReg(0x00,0x81);
QND_WriteReg(0x57,0x80);
QND_WriteReg(0x57,0x00);
QND_Delay(10); //wait more than 100ms
QND_WriteReg(0x00,0x01);
QND_WriteReg(0x52,0x00);
QNF_SetRegBit(31,0x38,0x28); //WQF0717
//WQF0717
QND_WriteReg(HYSTERSIS, 0xff);
QND_WriteReg(MPSTART, 0x12);
QNF_SetRegBit(58,0xf,0xf);//set ccth11
}
/**********************************************************************
void QND_LoadDefalutSetting(UINT8 country)
**********************************************************************
Description: load some defalut setting for a certain country
Parameters:
country :
COUNTRY_CHINA: China
COUNTRY_USA: USA
COUNTRY_JAPAN: Japan (not supported yet)
Return Value:
None
**********************************************************************/
void QND_LoadDefalutSetting(UINT8 country)
{
switch(country)
{
case COUNTRY_CHINA:
break;
case COUNTRY_USA:
QND_ConfigFMModule(QND_CONFIG_AUDIOPEAK_DEV,75);
QND_ConfigFMModule(QND_CONFIG_PILOT_DEV,9);
QND_ConfigFMModule(QND_CONFIG_RDS_DEV,2);
QNF_SetRegBit(0x01,0x08,0x08);
QNF_SetRegBit(0x04,0x3f,0x3f);
QND_TXConfigAudio(QND_CONFIG_SOFTCLIP,1);
break;
case COUNTRY_JAPAN:
break;
default:
break;
}
}
/**********************************************************************
int QND_Init()
**********************************************************************
Description: Initialize device to make it ready to have all functionality ready for use.
Parameters:
None
Return Value:
1: Device is ready to use.
0: Device is not ready to serve function.
**********************************************************************/
UINT8 QND_Init()
{
QN_ChipInitialization();
QNF_SetMute(1);
QNF_InitRSSInBB(); // init band range
QND_WriteReg(0x00, 0x01); //resume original status of chip /* 2008 06 13 */
QNF_SetMute(0);
return 1;
}
/**********************************************************************
void QND_SetSysMode(UINT16 mode)
***********************************************************************
Description: Set device system mode(like: sleep ,wakeup etc)
Parameters:
mode: set the system mode , it will be set by some macro define usually:
SLEEP (added prefix: QND_MODE_, same as below): set chip to sleep mode
WAKEUP: wake up chip
TX: set chip work on TX mode
RX: set chip work on RX mode
FM: set chip work on FM mode
AM: set chip work on AM mode
TX|FM: set chip work on FM,TX mode
RX|AM; set chip work on AM,RX mode
RX|FM: set chip work on FM,RX mode
Return Value:
None
**********************************************************************/
void QND_SetSysMode(UINT16 mode)
{
UINT8 val;
switch(mode)
{
case QND_MODE_SLEEP: //set sleep mode
qnd_PrevMode = QND_ReadReg(SYSTEM1);
QNF_SetRegBit(SYSTEM1, R_TXRX_MASK, STNBY);
break;
case QND_MODE_WAKEUP: //set wakeup mode
QND_WriteReg(SYSTEM1, qnd_PrevMode);
break;
case QND_MODE_DEFAULT:
QNF_SetRegBit(SYSTEM2,0x80,0x80);
break;
default:
val = (UINT8)(mode >> 8);
if (val)
{
if(val == (QND_MODE_TX >> 8))
{
QND_WriteReg(73, 0x44);
}
else if(val == (QND_MODE_RX >> 8))
{
QND_WriteReg(73, 0x04);
}
// set to new mode if it's not same as old
if((QND_ReadReg(SYSTEM1) & R_TXRX_MASK) != val)
{
QNF_SetMute(1);
QNF_SetRegBit(SYSTEM1, R_TXRX_MASK, val);
// QNF_SetMute(0);
}
// make sure it's working on analog output
QNF_SetRegBit(SYSTEM1, 0x08, 0x00);
}
break;
}
}
/**********************************************************************
void QND_TuneToCH(UINT16 ch)
**********************************************************************
Description: Tune to the specific channel. call QND_SetSysMode() before
call this function
Parameters:
ch
Set the frequency (10kHz) to be tuned,
eg: 101.30MHz will be set to 10130.
Return Value:
None
**********************************************************************/
void QND_TuneToCH(UINT16 ch)
{
UINT8 rssi;
UINT8 minrssi;
QNF_RXInit();
// if chip working on TX mode, just set CH
if(QND_ReadReg(SYSTEM1) & TXREQ)
{
QNF_SetRegBit(SYSTEM1, CCA_CH_DIS, CCA_CH_DIS);
QNF_SetCh(ch);
return;
}
QNF_SetMute(1);
if ((ch - 7710) % 240 == 0)
{
QNF_SetRegBit(TXAGC_GAIN, IMR, IMR);
}
else
{
QNF_SetRegBit(TXAGC_GAIN, IMR, 0x00);
}
QNF_SetCh(ch);
QNF_SetRegBit(SYSTEM1, CCA_CH_DIS, CCA_CH_DIS);
//Free filter without RDS and Set filter 2 for Non-RDS
QNF_SetRegBit(GAIN_SEL,0x38,(QND_ReadReg(SYSTEM2) & 0x20) ? 0x00 : 0x28);
QNF_SetMute(0);
}
/**********************************************************************
void QND_SetCountry(UINT8 country)
***********************************************************************
Description: Set start, stop, step for RX and TX based on different
country
Parameters:
country:
Set the chip used in specified country:
CHINA:
USA:
JAPAN:
Return Value:
None
**********************************************************************/
void QND_SetCountry(UINT8 country)
{
qnd_Country = country;
switch(country)
{
case COUNTRY_CHINA:
qnd_CH_START = 7600;
qnd_CH_STOP = 10800;
qnd_CH_STEP = 1;
break;
case COUNTRY_USA:
qnd_CH_START = 8810;
qnd_CH_STOP = 10790;
qnd_CH_STEP = 2;
break;
case COUNTRY_JAPAN:
break;
}
}
/**********************************************************************
void QND_UpdateRSSIn(UINT16 ch)
**********************************************************************
Description: in case of environment changed, we need to update RSSI noise floor
Parameters:
None
Return Value:
None
**********************************************************************/
void QND_UpdateRSSIn(UINT16 ch)
{
UINT8 temp;
UINT8 v_abs;
if (qnd_FirstScan == 0 )
{
temp = QND_GetRSSI(qnd_ClearChannel);
if(temp > qnd_RSSIns)
{
v_abs = temp - qnd_RSSIns;
}
else
{
v_abs = qnd_RSSIns - temp;
}
if (v_abs< RSSINTHRESHOLD)
{
qnd_ClearScanFlag = 0;
}
else
{
qnd_ClearScanFlag = 1;
}
}
if (qnd_ClearScanFlag||qnd_FirstScan||ch)
{
QNF_UpdateRSSIn(ch);
qnd_FirstScan = 0;
}
return;
}
/**********************************************************************
void QND_ConfigFMModule(UINT8 optiontype, UINT8 option)
***********************************************************************
Description: Config the FM modulation setting
country
Parameters:
optiontype:
QND_CONFIG_AUDIOPEAK_DEV : audio peak deviation
QND_CONFIG_PILOT_DEV: pilot deviation
QND_CONFIG_RDS_DEV: rds deviation
option:
QND_CONFIG_AUDIOPEAK_DEV: 0~165khz
QND_CONFIG_PILOT_DEV: 8~10
QND_CONFIG_RDS_DEV: 1~7.5khz
Return Value:
None
**********************************************************************/
void QND_ConfigFMModule(UINT8 optiontype, UINT8 option)
{
UINT8 tmp8;
UINT16 tmp16;
switch (optiontype)
{
case QND_CONFIG_AUDIOPEAK_DEV:
tmp16 = option*100;
tmp8 = tmp16/69;
QND_WriteReg(0x0e,tmp8);
break;
case QND_CONFIG_PILOT_DEV:
tmp8 = option<<2;
QNF_SetRegBit(0x0f,0x3c,tmp8);
break;
case QND_CONFIG_RDS_DEV:
tmp16 = option*100;
tmp8 = tmp16/35;
QNF_SetRegBit(0x18,0x7f,tmp8);
break;
default:
break;
}
}
/***********************************************************************
Description: set call back function which can be called between seeking
channel
Parameters:
func : the function will be called between seeking
Return Value:
None
**********************************************************************/
void QND_SetSeekCallBack(QND_SeekCallBack func)
{
qnd_CallBackFunc = func;
}
/***********************************************************************
UINT16 QND_RXSeekCH(UINT16 start, UINT16 stop, UINT16 step, UINT8 snr_th, UINT8 up);
***********************************************************************
Description: Automatically scans the frequency range, and detects the
first channel(AM or FM, it will be determine by the system mode which set
by QND_SetSysMode).
A threshold value needs to be passed in for channel detection.
Parameters:
start
Set the frequency (10kHz) where scan will be started,
eg: 76.00MHz will be set to 7600.
stop
Set the frequency (10kHz) where scan will be stopped,
eg: 108.00MHz will be set to 10800.
step
FM:
QND_FMSTEP_100KHZ: set leap step to 100kHz
QND_FMSTEP_200KHZ: set leap step to 200kHz
QND_FMSTEP_50KHZ: set leap step to 50kHz
AM:
QND_AMSTEP_***:
snr_th:
Set threshold for quality of channel to be searched.
up:
Set the seach direction :
Up;0,seach from stop to start
Up:1 seach from start to stop
Return Value:
The channel frequency (unit: 10kHz)
-1: no channel found
***********************************************************************/
UINT16 QND_RXSeekCH(UINT16 start, UINT16 stop, UINT8 step, UINT8 db, UINT8 up)
{
UINT8 regValue;
UINT16 c, chfreq;
UINT16 ifcnt;
UINT8 savevalue;
UINT8 rssi,mprssi;
UINT8 scanFlag = 1;
UINT8 stepvalue;
UINT8 timeout = 0;
UINT8 pilot_snr;
UINT8 minrssi;
if (qnd_AutoScanAll == 0)
{
QNF_SetMute(1);
QNF_SetRegBit(GAIN_SEL,0x38,0x38);
QND_UpdateRSSIn(0);
}
up=(start<stop) ? 1 : 0;
stepvalue = qnd_StepTbl[step];
do
{
minrssi = QNF_GetRSSIn(start);
QNF_SetCh(start);
c = start;
if ((c - 7710) % 240 == 0)
{
QNF_SetRegBit(TXAGC_GAIN, IMR, IMR);
}
else
{
QNF_SetRegBit(TXAGC_GAIN, IMR, 0);
}
QNF_SetRegBit(SYSTEM1,0xA1,0x81);
QND_Delay(10); //10ms delay
rssi = QND_ReadReg(RSSISIG); //read RSSI
if (rssi > minrssi+6+db)
{
QNF_ConfigScan(start, start, step);
QNM_SetRxThreshold(minrssi-22+db);
QNF_SetRegBit(SYSTEM1,0xA1,0xA0);
timeout = 0;
do
{
QND_Delay(5);
regValue = QND_ReadReg(SYSTEM1);
timeout++;
}
while((regValue &CHSC)&&timeout < 200);
if (timeout < 200)
{
regValue = QND_ReadReg(CCA5);
ifcnt = regValue;
regValue = QND_ReadReg(CCA4);
ifcnt =(((ifcnt&0x1f)<<8)+regValue);
if ((ifcnt < 2268) && (ifcnt > 1828))
{
if (rssi > minrssi + 20 + db)
{
scanFlag = 0;
}
else
{
QND_Delay(PILOT_READ_OUT_DELAY_TIME);
pilot_snr = (QND_ReadReg(STATUS1) & 0x01) ? 0 : 1;
if (pilot_snr)
{
scanFlag = 0;
}
else
{
QND_Delay(PILOT_SNR_READ_OUT_DELAY_TIME);
pilot_snr = QND_ReadReg(SNR);
if (pilot_snr > 5 && pilot_snr < 55)
{
scanFlag = 0;
}
}
}
}
}
}
chfreq = start;
if (scanFlag)
{
start = chfreq + (up ? stepvalue : -stepvalue);
if ((up && (stop < start)) || (!up && (start < stop)))
{
scanFlag = 0;
chfreq = 0;
}
}
else
{
if(qnd_CallBackFunc)
qnd_CallBackFunc(chfreq, BAND_FM);
}
}
while (scanFlag != 0);
if (qnd_AutoScanAll == 0)
{
//Move the filter setting to TunetoChannel
//QNF_SetRegBit(32,0x08,0x08);
QND_TuneToCH((chfreq==0) ? stop: chfreq);
}
//QND_LOG("=== Done QND_AutoScan_FMChannel_One ===");
return chfreq;
}
/**********************************************************************
UINT8 QND_RXSeekCHAll(UINT16 start, UINT16 stop, UINT16 step, UINT8 db, UINT8 up)
**********************************************************************
Description: Automatically scans the complete FM or AM band and detects
all the available channels(AM or FM, it will be determine by
the workmode which set by QND_SetSysmode). A threshold value
needs to be passed in for the channel detection.
Parameters:
start
Set the frequency (10kHz) where scan will be started,
eg: 76.00MHz will be set to 7600.
stop
Set the frequency (10kHz) where scan will be stopped,
eg: 108.00MHz will be set to 10800.
Step
FM:
QND_FMSTEP_100KHZ: set leap step to 100kHz
QND_FMSTEP_200KHZ: set leap step to 200kHz
QND_FMSTEP_50KHZ: set leap step to 50kHz
AM:
QND_AMSTEP_***:
db
Set signal noise ratio for channel to be searched.
up:
Set the seach direction :
Up;0,seach from stop to start
Up:1 seach from start to stop
Return Value:
The channel count found by this function
-1: no channel found
**********************************************************************/
UINT8 QND_RXSeekCHAll(UINT16 start, UINT16 stop, UINT8 step, UINT8 db, UINT8 up)
{
UINT16 prevCh = 0;
//UINT16 chfreq;
UINT8 stepvalue;
UINT16 temp;
UINT16 pStart = start;
UINT16 pStop = stop > qnd_CH_STOP ? qnd_CH_STOP : stop;
QNF_SetMute(1);
up=(start<stop) ? 1 : 0;
qnd_AutoScanAll = 1;
stepvalue = qnd_StepTbl[step];
QNF_SetRegBit(GAIN_SEL,0x38,0x38);
{
QND_UpdateRSSIn(0);
}
qnd_ChCount = 0;
do
{
temp = QND_RXSeekCH(pStart, pStop, step, db, up);
if (temp)
{
qnd_ChList[qnd_ChCount++] =temp;
}
else
{
temp = pStop;
}
{
pStart = temp + (up ? stepvalue : -stepvalue);
}
}
while((up ? (pStart<=pStop):(pStart>=pStop)) && (qnd_ChCount < QN_CCA_MAX_CH));
QND_TuneToCH((qnd_ChCount >= 1)? qnd_ChList[0] : pStop);
qnd_AutoScanAll = 0;
QNF_SetMute(0);
return qnd_ChCount;
}
/************************************************************************
void QND_RXConfigAudio(UINT8 optiontype, UINT8 option )
*************************************************************************
Description: config audio
Parameters:
optiontype: option
QND_CONFIG_MUTE; ‘option’control muteable, 0:mutedisable,1:mute enable
QND_CONFIG_MONO; ‘option’control mono, 0: QND_AUDIO_STEREO,1: QND_AUDIO_STEREO
QND_CONFIG_EQUALIZER: 'option' control the EQUALIZER,0:disable EQUALIZER; 1: enable EQUALIZER;
QND_CONFIG_VOLUME: 'option' control the volume gain,range : 0~83(0: -65db, 65: 0db, 83: +18db
QND_CONFIG_BASS_QUALITY: 'option' set BASS quality factor,0: 1, 1: 1.25, 2: 1.5, 3: 2
QND_CONFIG_BASS_FREQ: 'option' set BASS central frequency,0: 60Hz, 1: 70Hz, 2: 80Hz, 3: 100Hz
QND_CONFIG_BASS_GAIN: 'option' set BASS control gain,range : 0x0~0x1e (00000 :-15db, 11110 :15db
QND_CONFIG_MID_QUALITY: 'option' set MID quality factor,0 :1, 1 :2
QND_CONFIG_MID_FREQ: 'option' set MID central frequency,0: 0.5KHz, 1: 1KHz, 2: 1.5KHz, 3: 2KHz
QND_CONFIG_MID_GAIN: 'option' set MID control gain,range : 0x0~0x1e (00000 :-15db, 11110 :15db)
QND_CONFIG_TREBLE_FREQ: 'option' set TREBLE central frequency,0: 10KHz, 1: 12.5KHz, 2: 15KHz, 3: 17.5KHz
QND_CONFIG_TREBLE_GAIN: 'option' set TREBLE control gain,range : 0x0~0x1e (00000 :-15db, 11110 :15db
Return Value:
none
**********************************************************************/
void QND_RXConfigAudio(UINT8 optiontype, UINT8 option )
{
switch(optiontype)
{
case QND_CONFIG_MONO:
if (option)
QNF_SetAudioMono(RX_MONO_MASK, QND_RX_AUDIO_MONO);
else
QNF_SetAudioMono(RX_MONO_MASK, QND_RX_AUDIO_STEREO);
break;
case QND_CONFIG_MUTE:
if (option)
QNF_SetMute(1);
else
QNF_SetMute(0);
break;
default:
break;
}
}
/**********************************************************************
UINT16 QND_TXClearChannelScan(UINT16 start, UINT16 stop, UINT16 step,UINT8 db)
**********************************************************************
Description: Clean channel scan. Finds the best clear channel for transmission.
Parameters:
Start
Set the frequency (10kHz) where scan will be started,
eg: 7600 for 76.00MHz
Stop
Set the frequency (10kHz) where scan will be stopped,
eg: 10800 for 108.00MHz
Step
QND_FSTEP_100KHZ: Set leap step to 100kHz.
QND_FSTEP_200KHZ: Set leap step to 200kHz.
QND_FSTEP_50KHZ: Set leap step to 50kHz.
db
Set threshold for quality of channel to be searched.
Return Value:
The channel frequency (unit: 10kHz)
**********************************************************************/
UINT16 QND_TXClearChannelScan(UINT16 start, UINT16 stop, UINT8 step,UINT8 db)
{
UINT8 regValue;
UINT16 chnFreq;
QNF_ConfigScan(start, stop, step);
QNF_SetRegBit(CCA, 0xe0, 0x20); // set TXCCAAqn
{
QNF_SetRegBit(SYSTEM1, 0xe1, 0x60); // &0xfe |0x60
}
do{
QND_Delay(20);
regValue =QND_ReadReg(SYSTEM1);
}while(regValue&0x20);
// suppose it's time to get right TX ch
chnFreq = QNF_GetCh();
QND_LOGB("BestChannel ",chnFreq);
return chnFreq;
}
/**********************************************************************
UINT8 QND_TXSetPower( UINT8 gain)
**********************************************************************
Description: Sets FM transmit power attenuation.
Parameters:
gain: The transmission power attenuation value, for example,
setting the gain = 0x13, TX attenuation will be -6db
look up table see below
BIT[5:4]
00 0db
01 -6db
10 -12db
11 -18db
BIT[3:0] unit: db
0000 124
0001 122.5
0010 121
0011 119.5
0100 118
0101 116.5
0110 115
0111 113.5
1000 112
1001 110.5
1010 109
1011 107.5
1100 106
1101 104.5
1110 103
1111 101.5
for example:
0x2f, //111111 89.5
0x2e, //111110 91
0x2d, //111101 92.5
0x2c, //111100 94
0x1f, //111011 95.5
0x1e, //111010 97
0x1d, //111001 98.5
0x1c, //111000 100
0x0f, //001111 101.5
0x0e, //001110 103
0x0d, //001101 104.5
0x0c, //001100 106
0x0b, //001011 107.5
0x0a, //001010 109
0x09, //001001 110.5
0x08, //001000 112
0x07, //000111 113.5
0x06, //000110 115
0x05, //000101 116.5
0x04, //000100 118
0x03, //000011 119.5
0x02, //000010 121
0x01, //000001 122.5
0x00 //000000 124
**********************************************************************/
void QND_TXSetPower( UINT8 gain)
{
UINT8 value = 0;
value |= 0x40;
value |= gain;
QND_WriteReg(PAG_CAL, value);
}
/**********************************************************************
void QND_TXConfigAudio(UINT8 optiontype, UINT8 option )
**********************************************************************
Description: Config the TX audio (eg: volume,mute,etc)
Parameters:
optiontype:option :
QND_CONFIG_AUTOAGC:‘option'set auto AGC, 0:disable auto AGC,1:enable auto AGC.
QND_CONFIG_SOFTCLIP;‘option’set softclip,0:disable soft clip, 1:enable softclip.
QND_CONFIG_MONO;‘option’set mono,0: QND_AUDIO_STEREO, 1: QND_AUDIO_STEREO
QND_CONFIG_AGCGAIN;‘option’set AGC gain, range:0000~1111
Return Value:
none
**********************************************************************/
void QND_TXConfigAudio(UINT8 optiontype, UINT8 option )
{
switch(optiontype)
{
case QND_CONFIG_MONO:
if (option)
QNF_SetAudioMono(0x10, QND_TX_AUDIO_MONO);
else
QNF_SetAudioMono(0x10, QND_TX_AUDIO_STEREO);
break;
case QND_CONFIG_MUTE:
if (option)
QNF_SetRegBit(0x28, 0x18,0);
else
QNF_SetRegBit(0x28, 0x18,0x18);
break;
case QND_CONFIG_SOFTCLIP:
if (option)
QNF_SetRegBit(TXAGC_GAIN,0x80, 0x80);
else
QNF_SetRegBit(TXAGC_GAIN,0x80, 0x00);
break;
case QND_CONFIG_AUTOAGC:
if (option)
QNF_SetRegBit(TXAGC_GAIN,0x40,0);
else
QNF_SetRegBit(TXAGC_GAIN,0x41,0x41);
break;
case QND_CONFIG_AGCGAIN:
QNF_SetRegBit(TXAGC_GAIN, 0x1f,option);
break;
default:
break;
}
}
/**********************************************************************
UINT8 QND_RDSEnable(UINT8 mode)
**********************************************************************
Description: Enable or disable chip to work with RDS related functions.
Parameters:
on: QND_RDS_ON: Enable chip to receive/transmit RDS data.
QND_RDS_OFF: Disable chip to receive/transmit RDS data.
Return Value:
QND_SUCCESS: function executed
**********************************************************************/
UINT8 QND_RDSEnable(UINT8 on)
{
UINT8 val;
QND_LOG("=== QND_SetRDSMode === ");
// get last setting
val = QND_ReadReg(SYSTEM1);
if (on == QND_RDS_ON)
{
val |= RDSEN;
// if RDS enabled, channel conditional filter is auto selected
QNF_SetRegBit(GAIN_SEL,0x08,0x00);
}
else if (on == QND_RDS_OFF)
{
val &= ~RDSEN;
// if RDS disabled, channel conditional filter is set to filter 2
QNF_SetRegBit(GAIN_SEL,0x38,0x28);
}
else
{
return 0;
}
QND_WriteReg(SYSTEM1, val);
return 1;
}
/**********************************************************************
UINT8 QND_DetectRDSSignal(void)
**********************************************************************
Description: detect the RDSS signal .
Parameters:
None
Return Value:
the value of STATUS3
**********************************************************************/
UINT8 QND_RDSDetectSignal(void)
{
UINT8 val = QND_ReadReg(STATUS3);
return val;
}
/**********************************************************************
void QND_RDSLoadData(UINT8 *rdsRawData, UINT8 upload)
**********************************************************************
Description: Load (TX) or unload (RX) RDS data to on-chip RDS buffer.
Before calling this function, always make sure to call the
QND_RDSBufferReady function to check that the RDS is capable
to load/unload RDS data.
Parameters:
rdsRawData :
8 bytes data buffer to load (on TX mode) or unload (on RXmode)
to chip RDS buffer.
Upload:
1-upload
0--download
Return Value:
QND_SUCCESS: rds data loaded to/from chip
**********************************************************************/
void QND_RDSLoadData(UINT8 *rdsRawData, UINT8 upload)
{
UINT8 i;
UINT8 temp;
if (upload)
{ //TX MODE
for (i = 0; i <= 7; i++)
{
QND_WriteReg(RDSD0 + i, rdsRawData[i]);
}
}
else
{
//RX MODE
for (i = 0; i <= 7; i++)
{
temp = QND_ReadReg(RDSD0 + i);
rdsRawData[i] = temp;
}
}
}
/**********************************************************************
UINT8 QND_RDSCheckBufferReady(void)
**********************************************************************
Description: Check chip RDS register buffer status before doing load/unload of
RDS data.
Parameters:
None
Return Value:
QND_RDS_BUFFER_NOT_READY: RDS register buffer is not ready to use.
QND_RDS_BUFFER_READY: RDS register buffer is ready to use. You can now
load (for TX) or unload (for RX) data from/to RDS buffer
**********************************************************************/
UINT8 QND_RDSCheckBufferReady(void)
{
UINT8 val;
UINT8 rdsUpdated;
rdsUpdated = QND_ReadReg(STATUS3);
if (QND_ReadReg(SYSTEM1) & TXREQ)
{
//TX MODE
QND_WriteReg(SYSTEM2,QND_ReadReg(SYSTEM2)^RDSTXRDY);
return QND_RDS_BUFFER_READY;
}
do {
val = QND_ReadReg(STATUS3)^rdsUpdated;
}while(!(val&RDS_RXUPD)) ;
return QND_RDS_BUFFER_READY;
}

复制代码

ID:79034 · 发表于 2017-5-23 19:08

楼主有没51现成试过能用的例程啊？新手。这个不知道怎么改啊。

ID:228360 · 发表于 2017-10-30 11:10

很不错，谢谢分享。

ID:338360 · 发表于 2018-8-31 15:36

不错不错，谢谢分享

ID:338360 · 发表于 2018-9-3 08:40

下来参考一下，刚有项目要用8027

ID:44267 · 发表于 2018-10-24 19:31

请问楼主这个有实物成功了嘛

ID:28367 · 发表于 2019-3-1 10:06

很详细，谢谢楼主分享

ID:535790 · 发表于 2020-3-19 22:15

学习一下

ID:568565 · 发表于 2020-5-9 15:16

51的驱动放进去以后空间都不够用了

ID:334128 · 发表于 2023-6-23 21:31

正在找此芯片资料，谢谢！

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QN8027 FM发射模块和QN8027的开发资料和程序源码

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