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看到坛子里有这方面的,正好手头有这些东西,试了一下午,没有成功,
由于手头有BH1417和1415,先用1417将板子调好(收音机可以收到1417所有的频率了),换上1415就是不能用收音机收到,那位高手帮忙看看是否是程序问题
CV的程序:
用软件仿真了下,输出DA信号为:D0---->T1
#include <mega8515.h>
#include <delay.h>
#define CE PORTC.0
#define CK PORTC.1
#define DA PORTC.2
// Declare your global variables here
eeprom unsigned int freq;
unsigned int freq_temp; // 频率缓存
void writefreq(unsigned int f)
{
unsigned char i;
CE=1;
CK=0;
for(i=0;i<16;i++)
{
if(f&0x01==0x01)
DA=1;
else
DA=0;
delay_us(3);
CK=1;
delay_us(3);
CK=0;
f=(f>>1);
}
CE=0;
}
void main(void)
{
// Declare your local variables here
// Input/Output Ports initialization
// Port A initialization
// Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out
// State7=0 State6=0 State5=0 State4=0 State3=0 State2=0 State1=0 State0=0
PORTA=0x00;
DDRA=0xFF;
// Port B initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=P State2=P State1=P State0=P
PORTB=0x0F;
DDRB=0x00;
// Port C initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=Out Func1=Out Func0=Out
// State7=T State6=T State5=T State4=T State3=T State2=0 State1=0 State0=0
PORTC=0x00;
DDRC=0x07;
// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTD=0x00;
DDRD=0x00;
// Port E initialization
// Func2=In Func1=In Func0=In
// State2=T State1=T State0=T
PORTE=0x00;
DDRE=0x00;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=FFh
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer 1 Stopped
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
MCUCR=0x00;
EMCUCR=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
freq_temp=17264; //初始频率88.0MHZ,单声道
delay_ms(800); //等待BH1415就绪
//if(freq_temp!=freq) //比较eeprom中的数据是否与freq_temp一样
// {
// freq=freq_temp; //如果不相等,将freq_temp数写入eeprom
// }
writefreq(freq_temp);
while (1)
{
// Place your code here
};
} |
阿莫论坛20周年了!感谢大家的支持与爱护!!
知道什么是神吗?其实神本来也是人,只不过神做了人做不到的事情 所以才成了神。 (头文字D, 杜汶泽)
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