📄 ad.c
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#include "public.h"
void AD_Init(void)
{
SETBIT(AD_RST_OUT, AD_RST);
CLEARBIT(AD_RST_OUT, AD_RST);
NOP();
NOP();
SETBIT(AD_RST_OUT, AD_RST);
NOP();
NOP();
}
void AD_GetData(u16* pusOutBuff)
{
u8 uctemp[2];
//u16 usADData[4]={0,0,0,0};
pusOutBuff[0]=0;
pusOutBuff[1]=0;
pusOutBuff[2]=0;
pusOutBuff[3]=0;
//hold channel A and channel B
PORTD=PORTD&0x9F; //bring HoldA,HoldB low
PORTD=PORTD|0xE0; //bring HoldA,HoldB high
//PORTD=PORTD&0xDF; //bring HoldA,HoldB low
//PORTD=PORTD|0xE0; //bring HoldA,HoldB high
while(CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until first convertion is started
while(0x00==CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until first convertion is finished
while(CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until second convertion is started
while(0x00==CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until second convertion is finished
CLEARBIT(AD_CS_OUT, AD_CS);//select the ads7864
SETBIT(AD_RD_OUT, AD_RD);
PORTD=PORTD|0x0C;
PORTD=PORTD&0xE3; //A2A1A0:000 channel A0
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
pusOutBuff[0]=(uctemp[1]&0x0F)<<8;
pusOutBuff[0]=pusOutBuff[0]|uctemp[0];
PORTD=PORTD|0x0C;
PORTD=PORTD&0xE7; //A2A1A0:001 channel A1
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
pusOutBuff[1]=(uctemp[1]&0x0F)<<8;
pusOutBuff[1]=pusOutBuff[1]|uctemp[0];
PORTD=PORTD|0x0C;
PORTD=PORTD&0xEB; //A2A1A0:010 channel B0
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
pusOutBuff[2]=(uctemp[1]&0x0F)<<8;
pusOutBuff[2]=pusOutBuff[2]|uctemp[0];
PORTD=PORTD|0x0C;
PORTD=PORTD&0xEF; //A2A1A0:011 channel B1
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
pusOutBuff[3]=(uctemp[1]&0x0F)<<8;
pusOutBuff[3]=pusOutBuff[3]|uctemp[0];
SETBIT(AD_CS_OUT, AD_CS);//unselect the ads7864
}
void ulAD_GetData(u32* pulOutBuff)
{
u8 uctemp[2];
s16 sstemp[4];
//sstemp[0]=0;
//sstemp[1]=0;
//sstemp[2]=0;
//sstemp[3]=0;
//hold channel A and channel B
PORTD=PORTD&0x9F; //bring HoldA,HoldB low
PORTD=PORTD|0xE0; //bring HoldA,HoldB high
while(CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until first convertion is started
while(0x00==CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until first convertion is finished
while(CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until second convertion is started
while(0x00==CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until second convertion is finished
CLEARBIT(AD_CS_OUT, AD_CS);//select the ads7864
SETBIT(AD_RD_OUT, AD_RD);
PORTD=PORTD|0x0C;
PORTD=PORTD&0xE3; //A2A1A0:000 channel A0
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[0]=(uctemp[1]&0x0F)<<8;
sstemp[0]=sstemp[0]|uctemp[0];
sstemp[0]=sstemp[0]<<4;
PORTD=PORTD|0x0C;
PORTD=PORTD&0xE7; //A2A1A0:001 channel A1
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[1]=(uctemp[1]&0x0F)<<8;
sstemp[1]=sstemp[1]|uctemp[0];
sstemp[1]=sstemp[1]<<4;
PORTD=PORTD|0x0C;
PORTD=PORTD&0xEB; //A2A1A0:010 channel B0
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[2]=(uctemp[1]&0x0F)<<8;
sstemp[2]=sstemp[2]|uctemp[0];
sstemp[2]=sstemp[2]<<4;
PORTD=PORTD|0x0C;
PORTD=PORTD&0xEF; //A2A1A0:011 channel B1
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[3]=(uctemp[1]&0x0F)<<8;
sstemp[3]=sstemp[3]|uctemp[0];
sstemp[3]=sstemp[3]<<4;
SETBIT(AD_CS_OUT, AD_CS);//unselect the ads7864
pulOutBuff[0]=sstemp[0]+32768;
pulOutBuff[1]=sstemp[1]+32768;
pulOutBuff[2]=sstemp[2]+32768;
pulOutBuff[3]=sstemp[3]+32768;
}
/*
void usAD_GetData(u16* pusOutBuff)
{
u8 uctemp[2];
s16 sstemp[4];
//sstemp[0]=0;
//sstemp[1]=0;
//sstemp[2]=0;
//sstemp[3]=0;
//hold channel A and channel B
PORTD=PORTD&0x9F; //bring HoldA,HoldB low
PORTD=PORTD|0xE0; //bring HoldA,HoldB high
while(CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until first convertion is started
while(0x00==CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until first convertion is finished
while(CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until second convertion is started
while(0x00==CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until second convertion is finished
CLEARBIT(AD_CS_OUT, AD_CS);//select the ads7864
SETBIT(AD_RD_OUT, AD_RD);
PORTD=PORTD|0x0C;
PORTD=PORTD&0xE3; //A2A1A0:000 channel A0
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[0]=(uctemp[1]&0x0F)<<8;
sstemp[0]=sstemp[0]|uctemp[0];
sstemp[0]=sstemp[0]<<4;
PORTD=PORTD|0x0C;
PORTD=PORTD&0xE7; //A2A1A0:001 channel A1
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[1]=(uctemp[1]&0x0F)<<8;
sstemp[1]=sstemp[1]|uctemp[0];
sstemp[1]=sstemp[1]<<4;
PORTD=PORTD|0x0C;
PORTD=PORTD&0xEB; //A2A1A0:010 channel B0
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[2]=(uctemp[1]&0x0F)<<8;
sstemp[2]=sstemp[2]|uctemp[0];
sstemp[2]=sstemp[2]<<4;
PORTD=PORTD|0x0C;
PORTD=PORTD&0xEF; //A2A1A0:011 channel B1
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[3]=(uctemp[1]&0x0F)<<8;
sstemp[3]=sstemp[3]|uctemp[0];
sstemp[3]=sstemp[3]<<4;
SETBIT(AD_CS_OUT, AD_CS);//unselect the ads7864
pusOutBuff[0]=sstemp[0]+32768;
pusOutBuff[1]=sstemp[1]+32768;
pusOutBuff[2]=sstemp[2]+32768;
pusOutBuff[3]=sstemp[3]+32768;
}
*/
void usAD_GetData(u16* pusOutBuff)
{
u8 uctemp[2];
s16 sstemp[4];
//hold channel A and channel B
PORTD=PORTD&0x9F; //bring HoldA,HoldB low
PORTD=PORTD|0xE0; //bring HoldA,HoldB high
while(CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until first convertion is started
while(0x00==CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until first convertion is finished
while(CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until second convertion is started
while(0x00==CHECKBIT(AD_BUSY_IN, AD_BUSY));//wait until second convertion is finished
CLEARBIT(AD_CS_OUT, AD_CS);//select the ads7864
SETBIT(AD_RD_OUT, AD_RD);
PORTD=PORTD|0x0C;
PORTD=PORTD&0xE3; //A2A1A0:000 channel A0
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[2]=(uctemp[1]&0x0F)<<8;
sstemp[2]=sstemp[2]|uctemp[0];
sstemp[2]=sstemp[2]<<4;
PORTD=PORTD|0x0C;
PORTD=PORTD&0xE7; //A2A1A0:001 channel A1
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[3]=(uctemp[1]&0x0F)<<8;
sstemp[3]=sstemp[3]|uctemp[0];
sstemp[3]=sstemp[3]<<4;
PORTD=PORTD|0x0C;
PORTD=PORTD&0xEB; //A2A1A0:010 channel B0
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[0]=(uctemp[1]&0x0F)<<8;
sstemp[0]=sstemp[0]|uctemp[0];
sstemp[0]=sstemp[0]<<4;
PORTD=PORTD|0x0C;
PORTD=PORTD&0xEF; //A2A1A0:011 channel B1
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[0]=PINC; //first byte
SETBIT(AD_RD_OUT, AD_RD);
CLEARBIT(AD_RD_OUT, AD_RD);
NOP();
uctemp[1]=PINC; //second byte
SETBIT(AD_RD_OUT, AD_RD);
sstemp[1]=(uctemp[1]&0x0F)<<8;
sstemp[1]=sstemp[1]|uctemp[0];
sstemp[1]=sstemp[1]<<4;
SETBIT(AD_CS_OUT, AD_CS);//unselect the ads7864
pusOutBuff[0]=sstemp[0]+32768;
pusOutBuff[1]=sstemp[1]+32768;
pusOutBuff[2]=sstemp[2]+32768;
pusOutBuff[3]=sstemp[3]+32768;
}⌨️ 快捷键说明
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