基于TMS320F28335的AD7280驱动代码

//-------本文件为通过spi口存取AD7280A的所有函数封装---------------------// #include "DSP2833x_Device.h" // DSP2833x Headerfile Include File #include "DSP2833x_Examples.h" // DSP2833x Examples Include File #include "GlobalVar.h" #include "AD7280A.h" // global variables to store AD7280A read-back data, located in internal RAM unsigned char AD7280A_ReadDevAdr2; unsigned char AD7280A_ReadRegAdr2; unsigned char AD7280A_ReadRegData2; unsigned char AD7280A_ReadConvData_H2; unsigned char AD7280A_ReadConvData_L2; unsigned char AD7280A_ConvChannel2=0x1; unsigned char AD7280A_ConvAverage2=0x1; unsigned char AD7280A_AcqTime2=0x1; unsigned char AD7280A_OVThreshold2=0xFF; unsigned char AD7280A_UVThreshold2=0x0; unsigned char AD7280A_OTThreshold2=0xFF; unsigned char AD7280A_UTThreshold2=0x0; unsigned char AD7280A_RegALERT2[AD7280A_DevNumber2]={0,0,0}; unsigned char AD7280A_CB2[AD7280A_DevNumber2]={0,0,0}; //device 1 channel 1 set on unsigned char AD7280A_STADC2[AD7280A_DevNumber2][2]={0,0,0,0}; unsigned char AD7280A_VADC2[AD7280A_DevNumber2][12]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; unsigned char AD7280A_TADC2[AD7280A_DevNumber2][12]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; unsigned char AD7280A_StackV2=0x0; float CellVoltage2[AD7280A_DevNumber2][6]={0,0,0,0,0,0,0,0,0,0,0,0};//实际电压的乘以1000 unsigned int CellTemp2[AD7280A_DevNumber2][6]={0,0,0,0,0,0,0,0,0,0,0,0};//实际温度的乘以10 unsigned char CBSetFlag2=0; unsigned int TimeAD2; float CellVoltageAll2; unsigned int cellbit2; // float CellTemperature2; extern const float Thermistor_IPM3_Table[19][2]; extern float Temperature_Calc(float TempAD, const float Table[19][2]); TEMPBIT BitTemp82; void BitToPHY2() { // unsigned int temp1,temp2; unsigned long temp3,temp1,temp2; unsigned char i,j; float temp,temp5,temp6; temp6=0; for(i=0;i<AD7280A_DevNumber2;i++) { for(j=0;j<6;j++) { temp1=AD7280A_VADC2[i][j*2]; temp2=AD7280A_VADC2[i][j*2+1]; temp3=((((temp1<<8)+(temp2 & 0x00ff))&0x0000FFFF)*125)/128+1000; //显示电压为实际电压的1000倍 temp5=temp3; if(j==5) { CellVoltage2[i][3]=temp5/1000; temp6=temp6+CellVoltage2[i][3]; }else { CellVoltage2[i][j]=temp5/1000; if(j<=2) { temp6=temp6+CellVoltage2[i][j]; } } // CellVoltage[i][j]=(((temp1<<8)+(temp2 & 0x00ff))*10)/1024+10; //显示电压为实际电压的10倍 temp1=AD7280A_TADC2[i][j*2]; temp2=AD7280A_TADC2[i][j*2+1]; CellTemp2[i][j]=(((temp1<<8)+(temp2 & 0x00ff))&0x0000FFFF); } CellVoltage2[i][4]=0; CellVoltage2[i][5]=0; } // temp=CellTemp2[0][2]; // tempfl2=temp*0.1+tempfl2*0.9; CellVoltageAll2=temp6; // CellTemperature2=Temperature_Calc(tempfl2,Thermistor_IPM3_Table); // if() } void CBset2(unsigned char regedit,unsigned char num) //regeit为需要开启平衡的通道设置值，num为第几个芯片 { if((num>0)&&(num<=AD7280A_DevNumber2)) { AD7280A_CB2[num-1]=regedit<<2; } } extern TEMPBIT BitTemp82; void AD7280A_ReverseDevAdr2(unsigned char DevAdr) { BitTemp82.all=DevAdr; BitTemp82.bit.bit7=BitTemp82.bit.bit0; BitTemp82.bit.bit0=BitTemp82.bit.bit4; BitTemp82.bit.bit4=BitTemp82.bit.bit7; BitTemp82.bit.bit7=BitTemp82.bit.bit1; BitTemp82.bit.bit1=BitTemp82.bit.bit3; BitTemp82.bit.bit3=BitTemp82.bit.bit7; BitTemp82.bit.bit7=0; BitTemp82.bit.bit6=0; BitTemp82.bit.bit5=0; //reverse D4~D0 } // Calculate AD7280A Write/Read CRC void AD7280A_CRC2 (unsigned char CRCbit, unsigned char CRCinput1, unsigned char CRCinput2,unsigned char CRCinput3) { TEMPBIT XORtemp; unsigned char i,temp1; BitTemp82.all=0; for (i=CRCbit;i>0;i--) { if (i==CRCbit) temp1=CRCinput1; if (i==CRCbit-8) temp1=CRCinput2; if (i==CRCbit-16) temp1=CRCinput3; if ((temp1&0x80)==0) XORtemp.bit.bit7=0; else XORtemp.bit.bit7=1; XORtemp.bit.bit5=BitTemp82.bit.bit4^BitTemp82.bit.bit7; XORtemp.bit.bit4=BitTemp82.bit.bit2^BitTemp82.bit.bit7; XORtemp.bit.bit3=BitTemp82.bit.bit1^BitTemp82.bit.bit7; XORtemp.bit.bit2=BitTemp82.bit.bit0^BitTemp82.bit.bit7; XORtemp.bit.bit1=XORtemp.bit.bit7^BitTemp82.bit.bit7; BitTemp82.bit.bit7=BitTemp82.bit.bit6; BitTemp82.bit.bit6=BitTemp82.bit.bit5; BitTemp82.bit.bit5=XORtemp.bit.bit5; BitTemp82.bit.bit4=BitTemp82.bit.bit3; BitTemp82.bit.bit3=XORtemp.bit.bit4; BitTemp82.bit.bit2=XORtemp.bit.bit3; BitTemp82.bit.bit1=XORtemp.bit.bit2; BitTemp82.bit.bit0=XORtemp.bit.bit1; temp1<<=1; } } // Bring AD7280A out of hardware powerdown mode void AD7280A_HWPowerUp2(void) { AD7280A2_PD_1; AD7280A2_CNVST_1; AD7280A2_CS_1; DELAY_US(10000); //delay >5.5ms for 1uF VREG cap } // Put AD7280A into hardware powerdown mode void AD7280A_HWPowerDown2(void) { unsigned int temp; // SPI_Tx(0); //AD7280_SDI=0; // SpiaRegs.SPITXBUF=0; // SpiaRegs.SPITXBUF=0; // SpiaRegs.SPITXBUF=0; // SpiaRegs.SPITXBUF=0; // while(SpiaRegs.SPIFFRX.bit.RXFFST<4){} //接收FIFO // temp=SpiaRegs.SPIRXBUF; // temp=SpiaRegs.SPIRXBUF; // temp=SpiaRegs.SPIRXBUF; // temp=SpiaRegs.SPIRXBUF; temp = Mcbspa_xmit(0x00000000); AD7280A2_PD_0; AD7280A2_CNVST_0; AD7280A2_CS_0; DELAY_US(5000); //delay >2ms for 1uF VREG cap } // Start AD7280A conversion void AD7280A_Conversion2(void) { AD7280A2_CNVST_0; DELAY_US(2); //0.4us < CNVST width < total conversion time AD7280A2_CNVST_1; DELAY_US(250); //Tconv=248.02us (12ch & Tacq=1.89us & Average=8 & Device=8), Twait=5us } // Re-synchronize AD7280A serial interface void AD7280A_ReSync2(void) { int i=0; // unsigned char count=0; unsigned int temp; AD7280A2_CS_1; while(i<4) //delay >10ns { i++; } // while(count<4) // { // SpiaRegs.SPITXBUF=0; //pop out 32x SCLK with CS=1 & SDI=0; // count++; // } // SpiaRegs.SPITXBUF=0; // SpiaRegs.SPITXBUF=0; // SpiaRegs.SPITXBUF=0; // SpiaRegs.SPITXBUF=0; // while(SpiaRegs.SPIFFRX.bit.RXFFST<4){} //接收FIFO // temp=SpiaRegs.SPIRXBUF; // temp=SpiaRegs.SPIRXBUF; // temp=SpiaRegs.SPIRXBUF; // temp=SpiaRegs.SPIRXBUF; temp = Mcbspa_xmit(0x00000000); } void AD7280A_Write2(unsigned char Dev_Adr, unsigned char Reg_Adr, unsigned char Reg_Data, unsigned char WriteAll) { unsigned int temp1,temp2,temp3,temp4; unsigned long temp; int i=0; AD7280A_ReverseDevAdr2(Dev_Adr); //Dev_Adr in D31:D27 temp1=BitTemp82.all<<3; temp1+=Reg_Adr>>3; //Reg_Adr in D26:D21 temp2=Reg_Adr<<5; temp2+=Reg_Data>>3; //Reg_Data in D20:D13 temp3=Reg_Data<<5; temp3+=WriteAll<<4; //Write_All in D12, D11=0 AD7280A_CRC2(21,temp1,temp2,temp3); //calculate CRC for D31:D11 temp4=BitTemp82.all; temp3+=temp4>>5; //CRC in D10:D3 temp4<<=3; temp4+=0x02; //D2:D0=010 AD7280A2_CS_0; while(i<2) //delay >10ns { i++; } //delay >10ns // SpiaRegs.SPITXBUF=(temp1<<8); // SpiaRegs.SPITXBUF=(temp2<<8); // SpiaRegs.SPITXBUF=(temp3<<8); // SpiaRegs.SPITXBUF=(temp4<<8); // while(SpiaRegs.SPIFFRX.bit.RXFFST<4){} //接收FIFO //temp=SpiaRegs.SPIRXBUF; // temp=SpiaRegs.SPIRXBUF; //temp=SpiaRegs.SPIRXBUF; //temp=SpiaRegs.SPIRXBUF; temp = 0; temp = (temp1 & 0xff); temp <<= 8; temp |= (temp2 & 0xff); temp <<= 8; temp |= (temp3 & 0xff); temp <<= 8; temp |= (temp4 & 0xff); temp = Mcbspa_xmit(temp); // DELAY_US(100); AD7280A2_CS_1; DELAY_US(5);//CS MUST be high for >3us between two 32-bit frames } unsigned char AD7280A_DaisyRead2(unsigned char ReadType) { unsigned long temp; unsigned int temp0,temp1,temp2,temp3,temp4,temp5,temp6; int i=0; unsigned int Temp_L = 0; unsigned int Temp_H = 0; temp0=ReadType; AD7280A2_CS_0; while(i<2) //delay >10ns { i++; } //delay >10ns // SpiaRegs.SPITXBUF=0xF800; // SpiaRegs.SPI