#include?“delay.h“
#include
#include
#include?“iic.h“
#include?“5767.h“

#define?max_freq?10800
#define?min_freq?7600
#define?write_order?0xc0??//讀地址
#define?read_order?0xc1	??//寫地址

uchar?data?fm_write[5]={0x000x000x010x930x00};	??//收音機參數配置
uchar?data?fm_read[5]={00000};

uint?freqPLLfrequency;

bit?modehisi;	?//標志位




?void?get_frequency（）
{??
???ulong?y;
???y=PLL;
???hisi=fm_write[2]&0x10;
???if（hisi）
???//freq=（y*8192+225000）/10000;		?//right??
???freq=（y*8192-225000）/10000;
???else
???//freq=（y*8192-225000）/10000?;	//right???		?
???freq=（y*8192+225000）/10000?;
}

void?get_pll（）
{?
?ulong?freq1y=frequency;
?freq1=y*10000;
?hisi=fm_write[2]&0x10;
?if（hisi）
?PLL=（（freq1+225000）*4）/32768;
?else
?PLL=（（freq1-225000）*4）/32768;
}

void?read_5byte（）
{
uchar?itempHtempL;
??iic_start（）;
?write_8bit（read_order）;
??check_ack（）;
????for（i=0;i<5;i++）
?????{
	??fm_read[i]=read_8bit（）;
??????send_ack（）;
?????}
???send_noack（）;
???iic_stop（）;
???tempH=fm_read[0];
???tempL=fm_read[1];
???tempH&=0x3f;
???PLL=tempH*256+tempL;
???get_frequency（）;
?}

void?write_5byte（）
{
???uchar?i;
???iic_start（）;
???write_8bit（write_order）;
???check_ack（）;
???for（i=0;i<5;i++）
???{
?????write_8bit（fm_write[i]）;
?????check_ack（）;
????}
??iic_stop（）;
??_nop_（）;
??_nop_（）;
??_nop_（）;
??_nop_（）;
??_nop_（）;
}

void?refurbish_5767（）????//FM收音芯片數據刷新一次
{
	get_pll（）;//計算PLL
	fm_write[0]=PLL/256;
	fm_write[1]=PLL%256;
	fm_write[2]=0x01;
	fm_write[3]=0x93;
	fm_write[4]=0x00;
	if（mode）?fm_write[2]|=0x80;//給SUD=1，向上搜索模式
	else?fm_write[2]&=0x7f;????//給SUD=0，向下搜索模式
	write_5byte（）;
	delayms（60）;
	read_5byte（）;
}

void?hand_search（）??//手動搜索電臺子程序
{
???read_5byte（）;
???if（mode）
???{
????frequency+=10;
????if（frequency>max_freq）
???????frequency=min_freq;
????}
???else
????{
	?frequency-=10;
?????if（frequency???????frequency=max_freq;
?????}
???refurbish_5767（）;
}
???
void?wt_search（）??//微調子程序
{?
??read_5byte（）;
???if（mode）
???{
?????frequency+=1;
?????if（frequency>max_freq）
?????????frequency=min_freq;
????}
???else
????{
	?frequency-=1;
?????if（frequency?????????frequency=max_freq;
?????}
???refurbish_5767（）;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????6376??2005-03-22?15:22??51收音機\STARTUP.A51

?????文件????????155??2012-01-01?20:49??51收音機\radio.plg

?????文件????????164??2011-11-21?21:45??51收音機\delay.h

?????文件???????1437??2011-11-22?09:30??51收音機\iic.c

?????文件????????297??2011-11-21?21:27??51收音機\iic.h

?????文件???????1485??2012-01-01?15:55??51收音機\main.c

?????文件????????160??2011-11-22?09:16??51收音機\smg.c

?????文件????????129??2011-11-22?09:20??51收音機\smg.h

?????文件???????2349??2012-01-01?17:24??51收音機\5767.c

?????文件????????459??2011-11-22?09:33??51收音機\5767.h

?????文件????????107??2011-11-21?22:03??51收音機\delay.c

?????文件??????14049??2012-01-01?15:53??51收音機\STARTUP.LST

?????文件????????108??2012-01-01?15:53??51收音機\radio.lnp

?????文件??????24576??2012-01-01?15:53??51收音機\radio.M51

?????文件????????758??2012-01-01?15:53??51收音機\STARTUP.OBJ

?????文件???????5167??2012-01-01?15:53??51收音機\5767.LST

?????文件???????9620??2012-01-01?15:53??51收音機\5767.OBJ

?????文件????????970??2012-01-01?15:53??51收音機\delay.LST

?????文件???????1032??2012-01-01?15:53??51收音機\delay.OBJ

?????文件???????3948??2012-01-01?15:53??51收音機\iic.LST

?????文件???????5938??2012-01-01?15:53??51收音機\iic.OBJ

?????文件???????3775??2012-01-01?15:53??51收音機\main.LST

?????文件???????5963??2012-01-01?15:53??51收音機\main.OBJ

?????文件???????1064??2012-01-01?15:53??51收音機\smg.LST

?????文件???????1370??2012-01-01?15:53??51收音機\smg.OBJ

?????文件??????21299??2012-01-01?15:53??51收音機\radio

?????文件???????4530??2012-01-01?15:53??51收音機\radio.hex

????.......?????????0??2012-01-01?15:52??51收音機\radio_Uv2.Bak

?????文件???????2319??2012-01-01?18:56??51收音機\radio.Uv2

?????文件?????591264??2011-12-31?15:04??51收音機\收音機制作\原理圖.pdf

............此處省略54個文件信息