ad9850-c程序-源代码
#include
#include
float l,m,n,q,z;
double k;
//-----------------------定义管脚-----------------------------
#define data_OUT P1
sbit FQ_UD=P3^0; //AD9850信号更新申请
sbit W_CLK=P3^1;
sbit FESET="P3"^2; //写控制字时钟
unsigned char CON_word[5];
//Word data[7] data[6] data[5] data[4] data[3] data[2] data[1] data[0]
//W0 Phase b Phase b3 Phase b2 Phase b1 Phase b0 Power Down Control Control
//W1 Freq-b31 Freq-b30 Freq-b29 Freq-b28 Freq-b27 Freq-b26 Freq-b25 Freq-b24
//W2 Freq-b23 Freq-b22 Freq-b21 Freq-b20 Freq-b19 Freq-b18 Freq-b17 Freq-b16
//W3 Freq-b15 Freq-b14 Freq-b13 Freq-b12 Freq-b11 Freq-b10 Freq-b9 Freq-b8
//W4 Freq-b7 Freq-b6 Freq-b5 Freq-b4 Freq-b3 Freq-b2
//--------------------------------------------------------------------------------------------------
// 函数名称： delay
// 入口参数： N
// 函数功能：延时子程序，实现(16*N+24)us的延时
// 系统采用11.0592MHz的时钟时,延时满足要求,其它情况需要改动
//--------------------------------------------------------------------------------------------------
// void delay(unsigned int N)
// {
// int i;
//for(i=0;i // }
//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
/*******************************************************/
void Freq_Adjust(long value_Freq)
{
unsigned int i;
long f;
unsigned char L4,L3,L2,L1,L0;
FQ_UD=0;
f="value"_Freq*86;
L0=0x28;
L4= f&0x000000ff;
L3=(f>>8)&0x000000ff;
L2=(f>>16)&0x000000ff;
L1=(f>>24)&0x000000ff;
CON_word[0]=L0;
CON_word[4]=L4;
CON_word[3]=L3;
CON_word[2]=L2;
CON_word[1]=L1;
FQ_UD=0;
W_CLK=0;
//delay(0);
_nop_(); _nop_(); _nop_(); _nop_(); _nop_();
CON_word[0]=CON_word[0]&0xFC; //置工作方式选择位为00
for(i=0;i<5;i++)
{
FESET="1";
W_CLK=0;
data_OUT=CON_word[i]; //送控制字
// delay(0);
_nop_(); _nop_(); _nop_(); _nop_();_nop_();
FESET="0";
W_CLK=1; //上升延
//delay(0);
_nop_(); _nop_(); _nop_();_nop_();_nop_();
}
FQ_UD=1;
}
//-------------------------------------------------------------------------------
// 函数名称：main
// 用户主函数
// 函数功能：主函数
//-------------------------------------------------------------------------------
main()
{
BEGAIN:
LCD_Initial();
P2=0XF0;
GotoXY(0,0);
Print("Please Input :");
GotoXY(0,1);
Print(" ");
m=0;
k=0;
l=0;
//q=5;
FQ_UD=0;
Freq_Adjust(50000);
while(1)
{
while(1)
{
m="keynum"();
if(m>=0&&m<=9||m==15||m==14)
{
z="m";
Delay1ms(150);
break;
}
}
if(m>=0&&m<=9)
{
l++;
}
if(z==14)
{
goto BEGAIN;
}
if(z==15)
{
GotoXY(0,1);
Print(&TempBuffer[0]);
GotoXY(9,1);
Print("OK!!");
Delay1ms(1000);
break;
}
if(l==1)
{k=z;}
if(l==2)
{
k="k"*10+z;
}
if(l==3)
{
k="k"*10+z;
}
if(l==4)
{
k="k"*10+z;
}
if(l==5)
{
k="k"*10+z;
}
if(l==6)
{
k="k"*10+z;
}
if(l==7)
{
k="k"*10+z;
}
if(l==8)
{
k="k"*10+z;
}
if(l>8||k>25000000)
{
GotoXY(0,1);
Print(" ERROR!! ");
Delay1ms(500);
goto BEGAIN;
}
IntToStr(k,&TempBuffer[0],0);