dsp28335 initsysctrl（）

只看该作者 · 2015-11-18 17:16

硬件仿真，一直再initsysctrl()这个函数中的三个函数循环，不能出去？？？
有遇到相同情况的么:'(

2万 · 2015-11-18 22:03

找个好使的例子对比一下吧
下载controlSUITE里面有相关例子

只看该作者 · 2015-11-20 10:03

#include "DSP2833x_Device.h"    // DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h" // DSP2833x Examples Include File
#include "math.h"
#include "IIR.h"
#include "stdio.h"

#define    LED1 GpioDataRegs.GPADAT.bit.GPIO0
#define    LED2 GpioDataRegs.GPADAT.bit.GPIO1
#define    LED3 GpioDataRegs.GPADAT.bit.GPIO2
#define    LED4 GpioDataRegs.GPADAT.bit.GPIO3
#define    LED5 GpioDataRegs.GPADAT.bit.GPIO4
#define    NN 512
#define pi 3.14159
void configtestled(void);

void main(void)
{
int i;
int x[NN],y[NN];
// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the DSP2833x_SysCtrl.c file.
InitSysCtrl();

// Step 2. Initalize GPIO:
// This example function is found in the DSP2833x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.
// InitGpio();  // Skipped for this example
InitXintf16Gpio(); //zq

// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts
DINT;

// Initialize the PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.
// This function is found in the DSP2833x_PieCtrl.c file.
InitPieCtrl();

// Disable CPU interrupts and clear all CPU interrupt flags:
IER = 0x0000;
IFR = 0x0000;

// Initialize the PIE vector table with pointers to the shell Interrupt
// Service Routines (ISR).
// This will populate the entire table, even if the interrupt
// is not used in this example.  This is useful for debug purposes.
// The shell ISR routines are found in DSP2833x_DefaultIsr.c.
// This function is found in DSP2833x_PieVect.c.
InitPieVectTable();
configtestled();

// LED1=1;
  // DELAY_US(10);
  // LED2=1;
  // DELAY_US(10);
   LED1=0;
DELAY_US(10);
   LED2=0;
DELAY_US(10);
   LED3=0;
DELAY_US(10);
   LED4=0;
DELAY_US(10);
   LED5=0;
DELAY_US(10);
for(i=0;i<NN;i++)
   {
   x[i]=32768*( cos(2*pi*50*i/1024)+cos(2*pi*300*i/1024) );
   }
while(1)
{
   for(i=0;i<NN;i++)//屏蔽掉这个循环，就正常。加上后就卡在InitSysCtrl();中
{
y[i]=IIR(x[i]);//
}

   LED1=~LED1;
DELAY_US(100000);
   LED2=~LED2;
DELAY_US(100000);
   LED3=~LED3;
DELAY_US(100000);
   LED4=~LED4;
DELAY_US(100000);
   LED5=~LED5;
DELAY_US(100000);
   }

}

void configtestled(void)
{
EALLOW;
GpioCtrlRegs.GPAMUX1.bit.GPIO0 = 0; // GPIO0复用为GPIO功能
GpioCtrlRegs.GPADIR.bit.GPIO0 = 1;  // GPIO0设置为输出
GpioCtrlRegs.GPAMUX1.bit.GPIO1 = 0; // GPIO1 = GPIO1
GpioCtrlRegs.GPADIR.bit.GPIO1 = 1;
GpioCtrlRegs.GPAMUX1.bit.GPIO2 = 0; // GPIO0复用为GPIO功能
GpioCtrlRegs.GPADIR.bit.GPIO2 = 1;  // GPIO0设置为输出
GpioCtrlRegs.GPAMUX1.bit.GPIO3 = 0; // GPIO1 = GPIO1
GpioCtrlRegs.GPADIR.bit.GPIO3 = 1;
GpioCtrlRegs.GPAMUX1.bit.GPIO4 = 0; // GPIO1 = GPIO1
GpioCtrlRegs.GPADIR.bit.GPIO4 = 1;
EDIS;
}
//===========================================================================
// No more.
//===========================================================================

只看该作者 · 2015-11-20 10:04

#include "IIR.h"
double IIR_NUM[Nmbr_of_S][3]={{1,2,1},{1,2,1},{1,2,1},{1,1,0}};//Nmbr_of_S=4
double IIR_DEM[Nmbr_of_S][3]=
{
{1, -1.314474906723, 0.7447131399677},
{1, -1.068673995798, 0.4184596094403},
{1, -0.946227509319, 0.2559354008692},
{1, -0.454527052386, 0}
};
double IIR_G[4]={ 0.1075595583111,0.0874464034107,0.07742697288753,0.272736473807};
int IIR(int x_ad)
{
int i,y_da;

double x[Nmbr_of_S+1];
double w2[Nmbr_of_S],w1[Nmbr_of_S],w0[Nmbr_of_S],m2[Nmbr_of_S],m1[Nmbr_of_S],m0[Nmbr_of_S];

x[0] = x_ad/32768.0;
for(i=0;i<Nmbr_of_S;i++)
{
m0[i]=x[i];
m1[i]=m0[i];
m2[i]=m1[i];
w2[i]=IIR_NUM[i][2]*m0[i]+IIR_NUM[i][1]*m1[i]+IIR_NUM[i][0]*m2[i]-IIR_DEM[i][1]*w1[i]-IIR_DEM[i][2]*w0[i];
if(w2[0]>32767) w2[i]=32767;
if(w2[0]<-32767) w2[i]=-32767;
w0[i]=w1[i];
w1[i]=w2[i];
x[i+1]=w2[i]*IIR_G[i];
}

y_da=(int)(x[Nmbr_of_S]*32768.0);
return y_da;

}

//===========================================================================
// No more.
//===========================================================================

只看该作者 · 2015-11-20 10:05

CCS6.0

只看该作者 · 2015-11-20 10:17

IIR算法我软仿OK了的，系数matlab生成的。

只看该作者 · 2018-4-21 09:47

朋友，你的dsp卡在InitSysCtrl()的问题解决了吗

只看该作者 · 2019-11-19 21:09

527664313 发表于 2018-4-21 09:47
朋友，你的dsp卡在InitSysCtrl()的问题解决了吗

我也卡在InitSysCtrl()了

只看该作者 · 2019-11-22 08:47

看看时钟配置的对不对？

dsp28335 initsysctrl（）

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