DSP

关于dsp28335移相全桥易于理解的程序

2019-07-13 11:35发布

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此程序是ADC.h函数中 在interrupt void  adc_isr(void) 函数中做数据处理： /* * ADC.c * * Created on: 2017年8月5日 * Author: chris */ #include "DSP2833x_Device.h" // DSP2833x Headerfile Include File #include "DSP2833x_Examples.h" // DSP2833x Examples Include File #include "ADC.h" #define ADC_CKPS 0x0 #define BUF_SIZE 10 // Sample buffer size Uint16 LoopCount=0; Uint16 ADC_ConvertedValue[BUF_SIZE][2]; //float FBPS_Vget=0; //fbps电压获取 //float FBPS_Iget=0; //fbps电流获取 Uint16 ConversionCount=0; Uint16 Voltage1[10]; void ADC_init(void) { EALLOW; #if (CPU_FRQ_150MHZ) // Default - 150 MHz SYSCLKOUT #define ADC_MODCLK 0x3 // HSPCLK = SYSCLKOUT/2*ADC_MODCLK2 = 150/(2*3) = 25.0 MHz #endif EDIS; EALLOW; SysCtrlRegs.HISPCP.all = ADC_MODCLK; EDIS; EALLOW; // This is needed to write to EALLOW protected register PieVectTable.ADCINT = &adc_isr; EDIS; // This is needed to disable write to EALLOW protected registers PieCtrlRegs.PIEIER1.bit.INTx6 = 1; // IER |= M_INT1; // Enable CPU Interrupt 1 InitAdc(); // For this example, init the ADC // Configure ADC AdcRegs.ADCMAXCONV.all = 0x0003; // Setup 2 conv's on SEQ1 AdcRegs.ADCCHSELSEQ1.bit.CONV00 = 0x0; // Setup ADCINA3 as 1st SEQ1 conv. AdcRegs.ADCCHSELSEQ1.bit.CONV01 = 0x2; // Setup ADCINA2 as 2nd SEQ1 conv. AdcRegs.ADCCHSELSEQ1.bit.CONV02 = 0x4; // Setup ADCINA3 as 1st SEQ1 conv. AdcRegs.ADCCHSELSEQ1.bit.CONV03 = 0x6; // Setup ADCINA2 as 2nd SEQ1 conv. AdcRegs.ADCTRL2.bit.EPWM_SOCA_SEQ1 = 1;// Enable SOCA from ePWM to start SEQ1 AdcRegs.ADCTRL2.bit.INT_ENA_SEQ1 = 1; // Enable SEQ1 interrupt (every EOS) // Assumes ePWM1 clock is already enabled in InitSysCtrl(); EPwm1Regs.ETSEL.bit.SOCAEN = 1; // Enable SOC on A group EPwm1Regs.ETSEL.bit.SOCASEL = 4; // Select SOC from from CPMA on upcount EPwm1Regs.ETPS.bit.SOCAPRD = 1; // Generate pulse on 1st event EPwm1Regs.CMPA.half.CMPA = 0x0080; // Set compare A value EPwm1Regs.TBPRD = 0xFFFF; // Set period for ePWM1 EPwm1Regs.TBCTL.bit.CTRMODE = 0; // count up and start } interrupt void adc_isr(void) { static Uint16 array_ele1=0,array_ele2=0; //Voltage1[ConversionCount] = AdcRegs.ADCRESULT0; //Voltage2[ConversionCount] = AdcRegs.ADCRESULT1; ADC_ConvertedValue[array_ele1++][0]=( (AdcRegs.ADCRESULT0)>>4); //电压采集 ADC_ConvertedValue[array_ele2++][1]=( (AdcRegs.ADCRESULT1)>>4); //电流采集 // if(array_ele1>(BUF_SIZE-1)) array_ele1=0; if(array_ele2>(BUF_SIZE-1)) array_ele2=0; //FBPS_Vget = Voltage1[ConversionCount]*3.3/65536; //电压 // FBPS_Iget = Voltage2[ConversionCount]*3.3/65536; //电流 // Reinitialize for next ADC sequence AdcRegs.ADCTRL2.bit.RST_SEQ1 = 1; // Reset SEQ1 AdcRegs.ADCST.bit.INT_SEQ1_CLR = 1; // Clear INT SEQ1 bit PieCtrlRegs.PIEACK.all = PIEACK_GROUP1; // Acknowledge interrupt to PIE return; } /**************************中值滤波*****************************/ #define N_MID 10 float filter_mid(int k) { int i,j; float temp,adc=0.0; for (j=0;jADC_ConvertedValue[i][k] ) { temp = ADC_ConvertedValue[i][k]; ADC_ConvertedValue[i][k]= ADC_ConvertedValue[i][k]; ADC_ConvertedValue[i][k] = temp; } } } adc=ADC_ConvertedValue[(N_MID-1)/2][k]/4095.0*3.3; return adc; } 在定时器函数中： 在__interrupt void cpu_timer0_isr(void)定时器中断函数中实现双闭环 /* * Time.c * * Created on: 2017年10月19日 * Author: Sun zhaohu */ #include "DSP2833x_Device.h" // DSP2833x Headerfile Include File #include "DSP2833x_Examples.h" // DSP2833x Examples Include File //#include "Time.h" #include "include.h" /**************************************************/ fbps FBPS = {0,0,0,0,0,0,1.826,0,0,0,0}; float filter_mid(int k); /************************************************/ void Time_init(void) { EALLOW; // This is needed to write to EALLOW protected registers PieVectTable.TINT0 = &cpu_timer0_isr; // PieVectTable.XINT13 = &cpu_timer1_isr; // PieVectTable.TINT2 = &cpu_timer2_isr; EDIS; // This is needed to disable write to EALLOW protected registers InitCpuTimers(); // For this example, only initialize the Cpu Timers ConfigCpuTimer(&CpuTimer0, 150, 100); // ConfigCpuTimer(&CpuTimer1, 150, 1000000); // ConfigCpuTimer(&CpuTimer2, 150, 1000000); CpuTimer0Regs.TCR.all = 0x4000; // Use write-only instruction to set TSS bit = 0 // CpuTimer1Regs.TCR.all = 0x4000; // Use write-only instruction to set TSS bit = 0 // CpuTimer2Regs.TCR.all = 0x4000; // Use write-only instruction to set TSS bit = 0 // IER |= M_INT1; // IER |= M_INT13; // IER |= M_INT14; // Enable TINT0 in the PIE: Group 1 interrupt 7 PieCtrlRegs.PIEIER1.bit.INTx7 = 1; } __interrupt void cpu_timer0_isr(void) { //static float FBPS_pid_V=0,FBPS_pid_I=0; // Acknowledge this interrupt to receive more interrupts from group 1 // PieCtrlRegs.PIEACK.all = PIEACK_GROUP1; FBPS.Vcount++; if( FBPS.Vcount>= 3000) //软起动开始结电容充电adc采集存值 FBPS.Flag = 1; if(FBPS.Flag == 1) { FBPS.Vget = filter_mid(0); //中值滤波得电压 FBPS.Iget = filter_mid(1); //中值滤波得电流 FBPS.ivlue = FBPS.Iget*0.4816 - 0.0373; //电流线性关系 if( FBPS.ivlue>=0.94) FBPS.Vset = 1.83; else if( FBPS.ivlue<0.94&&FBPS.ivlue>0.65) FBPS.Vset = 1.832; //采集输出电压 电压1.83/36.2 else FBPS.Vset = FBPS.changeset; FBPS.PIDvout = PID_V(FBPS.Vset,FBPS.Vget); //输出电压设定为36v 1.83对应36v 电压环 //FBPS.PIDvout = fuzzy_pid( FBPS.Vset,FBPS.Vget); //输出电压设定为36v 1.83对应36v 电压环 FBPS.PIDiout = PID_I(FBPS.PIDvout,FBPS.ivlue); //电流环 可以不加没用 /****************************显示使用************************************/ FBPS.radio = FBPS.ivlue*FBPS.Vget*19.72/24/1.47*100; FBPS.angle = FBPS.PIDiout/3000*360; /*****************************************************************/ EPwm1Regs.TBPHS.half.TBPHS = FBPS.PIDiout; //改变移相角大小 EPwm1Regs.TBCTL.bit.SWFSYNC = 1; } PieCtrlRegs.PIEACK.all = PIEACK_GROUP1; }  

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