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TMS３２０F２８３３５双排序，双8路信号（１６路）同步ADC并行采样

TMS３２０F２８３３５双排序，双8路信号（１６路）同步

ADC并⾏采样

/************* 2021.12.20 *******************

-------- 主要功能：双排序，双8路信号（１６路）同步ADC并⾏采样 ---------

1. 定时中断0，驱动48⼝LED闪烁，低电平有效；

2. 在IO2和IO4⼝上产⽣125Hz，占空⽐为50%的⽅波;

3. 将IO2与ADC1⼝连接，IO4与ADC2⼝连接，脉搏传感器的s端与ADC0连接，-端与33脚连接，+与3V3连接;

4. 采⽤1500Hz频率进⾏采样，将产⽣的⽅波连接到不同的端⼦上，即可采集不同的信号。

************* end *******************/

#include "DSP2833x_Device.h" // DSP2833x Headerfile Include File

#include "DSP2833x_Examples.h" // DSP2833x Examples Include File

interrupt void AdcIsr(void); //ADC中断服务⼦函数声明

interrupt void cpu_timer0_isr(void); //定时器0中断服务⼦函数声明

void InitMyGpio(); //GPIO48⼝初始化函数声明,LED闪烁

void InitEPWM(); //EPWM2初始化函数声明

void InitMyAdc(void); //ADC初始化函数声明

#define startCpuTimer0() CpuTimer0Regs.TCR.bit.TSS=0 //定时器0启动指令宏定义

#define BUF_SIZE 256 // 信号缓存区长度

#define TimerPeriod 1000 //定时器1000us=1ms

// ADC时钟初始参数设置，对SYSCLKOUT分频后形成HSPCLK，⽤于ADC

#if (CPU_FRQ_150MHZ) // Default - 150 MHz SYSCLKOUT

#define ADC_MODCLK 0x0 // 当ADC_MODCLK2=3，HSPCLK = SYSCLKOUT/2*ADC_MODCLK2 = 150/(2*3) = 25.0 MHz

// 当ADC_MODCLK2=0，HSPCLK = SYSCLKOUT

#endif

#if (CPU_FRQ_100MHZ)

#define ADC_MODCLK 0x0 // 当ADC_MODCLK2=2， HSPCLK = SYSCLKOUT/2*ADC_MODCLK2 = 100/(2*2) = 25.0 MHz

#endif

#define ADC_SHCLK 0x1 // S/H width in ADC module periods

float SampleTable0[BUF_SIZE];

float SampleTable1[BUF_SIZE];

float SampleTable2[BUF_SIZE];

float SampleTable3[BUF_SIZE];

float SampleTable4[BUF_SIZE];

float SampleTable5[BUF_SIZE];

float SampleTable6[BUF_SIZE];

float SampleTable7[BUF_SIZE];

float SampleTable8[BUF_SIZE];

float SampleTable9[BUF_SIZE];

float SampleTable10[BUF_SIZE];

float SampleTable11[BUF_SIZE];

float SampleTable12[BUF_SIZE];

float SampleTable13[BUF_SIZE];

float SampleTable14[BUF_SIZE];

float SampleTable15[BUF_SIZE];

Uint16 SampleDone=0;

void main(void)

{

Uint16 i;

//-----1.系统和中断向量表初始化

InitSysCtrl();

DINT;

InitPieCtrl();

IER = 0x0000;

IFR = 0x0000;

InitPieVectTable();

/-----2.中断服务地址重新映射

//2.1 中断映射

EALLOW;

PieVectTable.TINT0 = &cpu_timer0_isr;//定时器0中断映射 PieVectTable.ADCINT = &AdcIsr;//ADC中断映射

//PieVectTable.XINT13 = &cpu_timer1_isr;

//PieVectTable.TINT2 = &cpu_timer2_isr;

EDIS;

//-----3.在PIE级和CPU级，开全局中断

PieCtrlRegs.PIEIER1.bit.INTx6 = 1;//使能ADC中断(INT1.6)

PieCtrlRegs.PIEIER1.bit.INTx7 = 1;//定时器0中断（INT1.6）

IER |= M_INT1;

EINT; // Enable Global interrupt INTM

ERTM; // Enable Global realtime interrupt DBGM

//------4.ADC初始化

//4.1.ADC初始时钟设置

EALLOW;

SysCtrlRegs.HISPCP.all = ADC_MODCLK; // HSPCLK = SYSCLKOUT/（2*ADC_MODCLK）；复位默认，HSPCLK=SysCLKOUT/2

EDIS;

//4.2使能AD时钟、完成AD校准及上电，该程序可见TI例程DSP2833x_Adc.c⽂件

InitAdc();

//4.3 详细配置ADC

InitMyAdc();

//------5.GPIO初始化

InitMyGpio(); //配置GPIO48为IOs输出功能，GPIO2为PWM模式

//------6.定时器初始化及启动

//6.1 定时器初始化

InitCpuTimers(); // For this example, only initialize the Cpu Timers

//6.2 定时器定时周期初始化

#if (CPU_FRQ_150MHZ)

放线菌培养基

// Configure CPU-Timer 0, 1, and 2 to interrupt every 1000 usecond:

// 150MHz CPU Freq, 1 second Period (in uSeconds)

ConfigCpuTimer(&CpuTimer0, 150, TimerPeriod);

//ConfigCpuTimer(&CpuTimer1, 150, 1000000);

/ConfigCpuTimer(&CpuTimer2, 150, 1000000);

#endif

#if (CPU_FRQ_100MHZ)

// Configure CPU-Timer 0, 1, and 2 to interrupt every 100 usecond:

// 100MHz CPU Freq, 1 second Period (in uSeconds)

ConfigCpuTimer(&CpuTimer0, 100, TimerPeriod)

//ConfigCpuTimer(&CpuTimer1, 100, 1000000);

//ConfigCpuTimer(&CpuTimer2, 100, 1000000);

#endif

//6.3 启动定时器

startCpuTimer0();

/------7.初始化PWM2模块

InitEPWM(); //配置ePWM2模块

//------8.清空缓存区

for (i=0; i<BUF_SIZE; i++)

{

SampleTable0[i] = 0;

SampleTable1[i] = 0;

SampleTable2[i] = 0;

SampleTable3[i] = 0;

SampleTable4[i] = 0;

SampleTable5[i] = 0;

一个度导航

SampleTable6[i] = 0;

SampleTable7[i] = 0;

SampleTable8[i] = 0;

SampleTable9[i] = 0;

SampleTable10[i] = 0;

SampleTable11[i] = 0;

SampleTable12[i] = 0;

SampleTable13[i] = 0;

SampleTable14[i] = 0;

SampleTable15[i] = 0;

}

while(1)

{

if (SampleDone==1) //数据采集结束，开始更新缓存区数据 { for ( i=0; i<BUF_SIZE-1; i++)

{

SampleTable0[i] = SampleTable0[i+1];

SampleTable1[i] = SampleTable1[i+1];

SampleTable2[i] = SampleTable2[i+1];

SampleTable3[i] = SampleTable3[i+1];

SampleTable4[i] = SampleTable4[i+1];

SampleTable5[i] = SampleTable5[i+1];

SampleTable6[i] = SampleTable6[i+1];

沟槽式

SampleTable7[i] = SampleTable7[i+1];

SampleTable8[i] = SampleTable8[i+1];

SampleTable9[i] = SampleTable9[i+1];

SampleTable10[i] = SampleTable10[i+1];

SampleTable11[i] = SampleTable11[i+1];

SampleTable12[i] = SampleTable12[i+1];

SampleTable13[i] = SampleTable13[i+1];

SampleTable14[i] = SampleTable14[i+1];

发热器SampleTable15[i] = SampleTable15[i+1];

}

SampleDone=0;

}

人脸识别数据标注

interrupt void cpu_timer0_isr(void)

{

CpuTimer0.InterruptCount++; //中断计数器，⽤于计算中断的响应次数

if(CpuTimer0.InterruptCount==500) //每个1sLED闪烁⼀次

{

GpioDataRegs.GPBTOGGLE.bit.GPIO48 = 1;

CpuTimer0.InterruptCount=0;

}

PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;

CpuTimer0Regs.TCR.bit.TIF=1;//清除中断标志位

CpuTimer0Regs.TCR.bit.TRB=1;//重新装载初值

}

void InitMyGpio()

{

EALLOW;

// 配置GPIO48为普通IO⼝输出功能

GpioCtrlRegs.GPBMUX2.all=0x00000000; //功能选择寄存器普通IO使⽤,GPIO48属于GPBMUX2

GpioCtrlRegs.GPBDIR.all=0xFFFFFFFF; //设置为输出模式

//配置GPIO2为EPWM2a功能

GpioCtrlRegs.GPAPUD.bit.GPIO2 = 0; //使能上拉

GpioCtrlRegs.GPAMUX1.bit.GPIO2 = 1; //作为EPWM2a功能

//配置GPIO4为EPWM3a功能

GpioCtrlRegs.GPAPUD.bit.GPIO4 = 0; //使能上拉

GpioCtrlRegs.GPAMUX1.bit.GPIO4 = 1; //作为EPWM3a功能

EDIS;

}

void InitEPWM()

{

EPwm2Regs.TBCTL.bit.CTRMODE = 0; //连续增计数模式

EPwm2Regs.TBCTL.bit.HSPCLKDIV = 3; //配置⾼速时钟/6分频；=2*k,k=1-7,k=0时1分频

EPwm2Regs.TBCTL.bit.CLKDIV = 2; //对输⼊时钟/4分频，2的k次⽅,k=0-7

EPwm2Regs.AQCTLA.bit.ZRO = 2; //计数值为0时，EPWM2a输出⾼电平

EPwm2Regs.AQCTLA.bit.CAU = 1; //计数值为⽐较值时，EPWM2a输出低电平

EPwm2Regs.TBPRD = 49999; //配置周期值，信号频率为150M / (6*4)/ (TBPRD+1) = 1250Hz EPwm2Regs.CMPA.half.CMPA = (EPwm2Regs.TBPRD+1)/2;//配置⽐较值

EPwm3Regs.TBCTL.bit.CTRMODE = 0; //连续增计数模式

EPwm3Regs.TBCTL.bit.HSPCLKDIV = 3; //配置⾼速时钟/6分频

EPwm3Regs.TBCTL.bit.CLKDIV = 2; //对输⼊时钟/4分频

EPwm3Regs.AQCTLA.bit.ZRO = 2; //计数值为0时，EPWM3a输出⾼电平

EPwm3Regs.AQCTLA.bit.CAU = 1; //计数值为⽐较值时，EPWM3a输出低电平

EPwm3Regs.TBPRD = 49999; //配置周期值，信号频率为150M / (6*4)/ (TBPRD+1) = 1250Hz EPwm3Regs.CMPA.half.CMPA= (EPwm2Regs.TBPRD+1)/2;//配置⽐较值

}青铜截止阀

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