51单片机，AD5933的阻抗测量主程序，有些地方看不懂，有没有大神，解释一下

石相康 · 发表于 2018-5-13 12:09:42

data_CountFL=CC1.MNum+20; //é¨Ãèμãêy

AD5933_FreInit( CC1.Fre , CC1.PlusFre );

Range = AD5933_SetRange();
AD5933_SelfTest( Range , &SelfT ); //×Ô2a
Switch_Config( 1 , Range ); //¿a·′à¡
AD5933_StartTest( 0 );
AD5933_ReadImpedance( &OutT );
QP(); //ÇåÆá
Temp = ((float)SelfT.Impedance/OutT.Impedance*Range);
if( (OutT.Phase-SelfT.Phase)<=0 )
{
TempPhase = ( ((float)(OutT.Phase-SelfT.Phase)) );
}
else
{
TempPhase = ((float)(OutT.Phase-SelfT.Phase));
}
LCD_WriteString( 1,0,"Imped:");
if( Temp-ConstR<0 )
{
LCD_WriteFloat(1,7, 0);
}
else
{
LCD_WriteFloat(1,7, Temp-ConstR);
}
LCD_WriteString( 2,0,"

hase:");
LCD_WriteFloat(2,7,TempPhase);
}
EA = 1;
}

if( Rx_OK==1 ) //½øè&#235

C¿ØÖÆ2aá¿×′ì¬
{
if( Check_And0(UART_Rx_Buffer,Max_Rx)==0 ) //èç1ûD￡Ñéoí==0¾íÆô¶ˉ½aÎöêy×é
{
QP();
LCD_WriteString(2,0,"RECEIVE OK!");
for( i=0 ; i<3 ;i++)    //»ñè¡·￠éäμØÖ·
{
UART_Tx_Buffer[i] = UART_Rx_Buffer[i+3];
}
CC1.MNum = UART_Rx_Buffer[11];
CC1.Fre = (uint)(UART_Rx_Buffer[7])*256+(uint)(UART_Rx_Buffer[8]); //ÆμÂê
CC1.PlusFre = (uint)(UART_Rx_Buffer[9])*256+(uint)(UART_Rx_Buffer[10]); //ÆμÂêÔöá¿
CC1.Sp =  UART_Rx_Buffer[12] -10;
CC1.Voltage = UART_Rx_Buffer[13];

AD5933_TestToPC(); //¿aê¼2aêÔ
Add_And0( UART_Tx_Buffer , 8*CC1.MNum+7 );
EA = 0;
UART_WriteTable( UART_Tx_Buffer , 8*CC1.MNum+8 );
EA = 1;

Rx_OK=0;
UART_IT(1);
}
else
{
QP();
LCD_WriteString(2,0,"RECEIVE Error;");
Rx_OK=0;
UART_IT(1);
}
}
}
return 0;
}

void AD5933_TestToPC( void )          //2aêÔò»′Î×°ÔØμ½·￠éä»o3å
{
uchar i;
float Range;                      //3õ′Îá¿3ì ÔY′æ
unsigned long Temp;
unsigned long TempPhase;

switch( CC1.Voltage )                //¼¤àø·å·åÖμ￡o0.2Vpp:0x02 0.4Vpp:0x04 1Vpp:0x06    2Vpp:0x00
{
case 1: data_Vpp=0x02;break;
case 2: data_Vpp=0x04;break;
case 3: data_Vpp=0x06;break;
case 4: data_Vpp=0x00;break;
}
data_CountFL = CC1.MNum+20;    //é¨Ãèμãêy

AD5933_FreInit( CC1.Fre , CC1.PlusFre );    //AD5933Ïμí33õê¼»ˉ

Range = AD5933_SetRange();                //½øDDá¿3ì2aêÔ

AD5933_SelfTest( Range , &SelfT ); //×Ô2a

Switch_Config( 1 , Range );    //¿a·′à¡
Delay_Ms( 100 );

CJ_Long( UART_Tx_Buffer , 3 , ConstR*100 );
AD5933_StartTest( 0 );
AD5933_ReadImpedance( &OutT );
LCD_WriteFloat(1,0,Range);
Temp = (unsigned long )((float)SelfT.Impedance/OutT.Impedance*Range*100.0);
if( (OutT.Phase-SelfT.Phase)<=0 )
{
TempPhase = (unsigned long )( 800000 + ((float)(OutT.Phase-SelfT.Phase)*100000.0) );
}
else
{
TempPhase = (unsigned long )((float)(OutT.Phase-SelfT.Phase)*100000.0);
}
CJ_Long( UART_Tx_Buffer , 7 , Temp );         //×è¿1
CJ_Long( UART_Tx_Buffer , 11 , TempPhase );    //ÏàÎ»
for( i=0 ; i<CC1.MNum-1 ; i++ )
{
Switch_Config( 1 , Range+1 );    //¿a·′à¡
Delay_Ms(50);
AD5933_StartTest( CC1.Sp );
AD5933_ReadImpedance( &OutT );
AD5933_SelfTest( Range , &SelfT ); //×Ô2a

Temp = (unsigned long )((float)SelfT.Impedance/OutT.Impedance*Range*100.0);
if( (OutT.Phase-SelfT.Phase)<0 )
{
TempPhase = (unsigned long )( 800000 + ((float)(OutT.Phase-SelfT.Phase)*100000.0) );
}
else
{
TempPhase = (unsigned long )((float)(OutT.Phase-SelfT.Phase)*100000.0);
}
CJ_Long( UART_Tx_Buffer , 15+8*i , Temp );         //×è¿1
CJ_Long( UART_Tx_Buffer , 15+4+8*i , TempPhase );    //ÏàÎ»
}
}

正点原子 · 发表于 2018-5-14 01:18:35

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51单片机，AD5933的阻抗测量主程序，有些地方看不懂，有没有大神，解释一下

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