📄 一些常用的c语言音响程序(5)：收音头控制程序(有些难度) - enbia's blog.mht
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work=20
mode type define:<BR>#define=20
MODE_IN1 0x28<BR>#define=20
MODE_IN2 0x29<BR>#define=20
MODE_OUT 0x2a<BR><BR>#define=20
CTE_ON 0x040000<BR><BR>#de=
fine=20
IOC1 0x000001<BR>#define=20
IOC2 0x000002<BR>#define=20
IO1 0x000004<B=
R>#define=20
IO2 0x000008<B=
R><BR>#define=20
BO1_ON 0x000010<BR>#define=
=20
BO2_ON 0x000020<BR>#define=
=20
BO3_ON 0x000040<BR>#define=
=20
BO4_ON 0x000080<BR><BR>#de=
fine=20
DO_MODE_UNLOCK 0x000200<BR>#define=20
DO_MODE_END_UC 0x000400<BR>#define=20
DO_MODE_MASK ~0x000e00<BR><BR>//=20
----------------------------------------<BR>// DEVIDER mode type =
define<BR>//=20
----------------------------------------<BR>#define=20
AM_DV_MODE 0x000000 &=
nbsp;//=20
16 BIT<BR>#define=20
SW_DV_MODE 0x020000 &=
nbsp;//=20
20 <BR>#define=20
FM_DV_MODE 0x020000 &=
nbsp;//=20
20 BIT SWALLOW<BR><BR>#define AM_DV_REF_9KHz=20
0x900000 // 9 =
KHZ<BR>#define=20
AM_DV_REF_10KHz 0x800000 // 10=20
KHZ<BR><BR>#define=20
SW_DV_REF 0xa00000 &n=
bsp;//=20
5 KHZ<BR>#define=20
FM_DV_REF 0x300000 &n=
bsp;//=20
25 KHZ<BR><BR>#define=20
PLL_OFF_REF 0xe00000 =
//=20
PLL inhibit and OSC stop.<BR><BR>//=20
----------------------------------------<BR>// IF Count<BR>//=20
----------------------------------------<BR>#define=20
GATE_TIME 32<BR><BR>#define=20
GATE_TIME_32MS 0x020000 //<=
BR>#define=20
GATE_TIME_4MS 0x000000<BR>#define=20
GATE_TIME_8MS 0x010000<BR><BR>#define=20
IFS 0x100000&n=
bsp; <BR><BR>#define=20
AM_IF_CNT=20
450*GATE_TIME =
//=20
450KH; <BR>#define AM_IF_CNT_MIN AM_IF_CNT -=20
AM_IF_CNT*0.01<BR>#define AM_IF_CNT_MAX =
AM_IF_CNT +=20
AM_IF_CNT*0.01<BR><BR>#define SW_IF_CNT=20
450*GATE_TIME =
//=20
450KH;<BR>#define SW_IF_CNT_MIN SW_IF_CNT -=20
SW_IF_CNT*0.01<BR>#define SW_IF_CNT_MAX =
SW_IF_CNT +=20
SW_IF_CNT*0.01<BR><BR>#define FM_IF_CNT=20
10700*GATE_TIME &nbs=
p; //=20
10.7 MH; <BR>#define FM_IF_CNT_MIN FM_IF_CNT -=20
FM_IF_CNT*0.01 <BR>#define FM_IF_CNT_MAX=20
FM_IF_CNT + FM_IF_CNT*0.01 <BR><BR>// =
----------------------------------------<BR>// Frequence Refrence<BR>//=20
----------------------------------------<BR>#define=20
AM_FREF_9KHz 9 =
//=20
9khz<BR>#define=20
AM_FREF_10KHz 10 &nbs=
p;//=20
10khz<BR><BR>#define=20
SW_FREF 5  =
; //=20
5khz<BR>#define =
FM_FREF (25*2)=20
// Fref=3D25*2 khz<BR><BR>// Frequence Range<BR>#define=20
AM_MIN_9KHz 522  =
; //=20
KHZ<BR>#define=20
AM_MAX_9KHz 1611 &nbs=
p;//=20
KHZ<BR><BR>#define=20
AM_MIN_10KHz 530 &nbs=
p;//=20
KHZ<BR>#define=20
AM_MAX_10KHz 1610 //=20
KHZ<BR><BR>#define=20
SW_MIN 1700 &nb=
sp; //=20
KHZ<BR>#define=20
SW_MAX 25000 &n=
bsp; //=20
KHZ<BR><BR>#define=20
FM_MIN 8700 &nb=
sp; //=20
10KHZ<BR>#define=20
FM_MAX 10800 &n=
bsp; //=20
10KHZ<BR><BR>// Frequence Counter Range<BR>#define=20
AM_CNT_MIN_9KHz ((AM_MIN_9KHz + =
450)/9)<BR>#define=20
AM_CNT_MAX_9KHz ((AM_MAX_9KHz + =
450)/9)<BR><BR>#define=20
AM_CNT_MIN_10KHz ((AM_MIN_10KHz + 450)/10)<BR>#define=20
AM_CNT_MAX_10KHz ((AM_MAX_10KHz + 450)/10)<BR><BR>#define=20
SW_CNT_MIN ((SW_MIN +=20
450)/SW_FREF)<BR>#define =
SW_CNT_MAX ((SW_MAX=20
+ 450)/SW_FREF)<BR>#define=20
FM_CNT_MIN ((FM_MIN + 1070)/((FM_FREF =
*100)/1000))<BR>#define =
FM_CNT_MAX ((FM_MAX +=20
1070)/((FM_FREF *100)/1000))<BR><BR>//=20
----------------------------------------<BR>// Search Step<BR>//=20
----------------------------------------<BR>#define=20
AM_CNT_STEP 1 &=
nbsp; //=20
F_step=3D1*5khz<BR>#define=20
SW_CNT_STEP 1 &=
nbsp; //=20
F_step=3D1*5khz<BR><BR>#define=20
FM_CNT_STEP_100KHz 2 =
//=20
F_step=3D2*50khz when Fref=3D25khz<BR>#define=20
FM_CNT_STEP_50KHz 1 &=
nbsp; //=20
F_step=3D50khz when Fref=3D25khz<BR><BR>typedef struct =
{<BR> DWORD=20
DivMode;<BR> DWORD DivRefPara;<BR><BR> WORD=20
IFCntMax;<BR> WORD IFCntMin;<BR><BR> BYTE=20
FRef;<BR><BR> WORD CntMax;<BR> WORD=20
CntMin;<BR><BR> BYTE CntStep;<BR>}BAND_INFO;<BR><BR>enum=20
{<BR> BAND_AM,<BR> BAND_FM,<BR> BAND_SW<=
BR>};<BR> <BR>static=20
BAND_INFO code BandInfo_AM_9KHz =3D {AM_DV_MODE, AM_DV_REF_9KHz, =
AM_IF_CNT_MAX,=20
AM_IF_CNT_MIN, AM_FREF_9KHz, AM_CNT_MAX_9KHz, AM_CNT_MIN_9KHz,=20
AM_CNT_STEP};<BR>static BAND_INFO code BandInfo_AM_10KHz =3D =
{AM_DV_MODE,=20
AM_DV_REF_10KHz, AM_IF_CNT_MAX, AM_IF_CNT_MIN, AM_FREF_10KHz, =
AM_CNT_MAX_10KHz,=20
AM_CNT_MIN_10KHz, AM_CNT_STEP};<BR><BR>static BAND_INFO code =
BandInfo_FM_100KHz=20
=3D {FM_DV_MODE, FM_DV_REF, FM_IF_CNT_MAX, FM_IF_CNT_MIN, FM_FREF, =
FM_CNT_MAX,=20
FM_CNT_MIN, FM_CNT_STEP_100KHz};<BR>static BAND_INFO code =
BandInfo_FM_50KHz =3D=20
{FM_DV_MODE, FM_DV_REF, FM_IF_CNT_MAX, FM_IF_CNT_MIN, FM_FREF, =
FM_CNT_MAX,=20
FM_CNT_MIN, FM_CNT_STEP_50KHz};<BR><BR>static BAND_INFO code BandInfo_SW =
=3D=20
{SW_DV_MODE, SW_DV_REF, SW_IF_CNT_MAX, SW_IF_CNT_MIN, SW_FREF, =
SW_CNT_MAX,=20
SW_CNT_MIN, SW_CNT_STEP};<BR><BR>//=20
----------------------------------------------------------------<BR>//=20
Variables<BR>//=20
----------------------------------------------------------------<BR>stati=
c DWORD=20
idata dwPLL_Shadow_IN1;<BR>static DWORD idata =
dwPLL_Shadow_IN2;<BR><BR>static=20
WORD idata cur_count[3]; // Current=20
count<BR><BR>static BOOL bST_MONO;<BR>static BOOL b_amstep;<BR>static =
BOOL=20
b_fmstep =3D 1;<BR><BR>static BYTE idata=20
band; <BR><BR>//=20
----------------------------------------------------------------<BR>// =
external=20
functions<BR>//=20
----------------------------------------------------------------<BR>stati=
c void=20
Tuner_Set_Frequency_Int(void);<BR>static void Write_LC72131_Addr(BYTE=20
addr);<BR>static DWORD Read_72131(void);<BR>static void =
Write_LC72131(BYTE addr,=20
DWORD value);<BR>static WORD Count_To_Freq(void);<BR><BR>extern void=20
Pause(BYTE);<BR>extern BOOL Write_EEPROM(BYTE, BYTE);<BR>extern BYTE=20
Read_EEPROM(BYTE);<BR><BR>extern void Temp_Mute(BOOL =
bOnOff);<BR><BR>#endif=20
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