dsp28335 initsysctrl（）
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:'( 找个好使的例子对比一下吧
下载controlSUITE里面有相关例子 #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,y;
// 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=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=IIR(x);//
}
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.
//===========================================================================
#include "IIR.h"
double IIR_NUM={{1,2,1},{1,2,1},{1,2,1},{1,1,0}};//Nmbr_of_S=4
double IIR_DEM=
{
{1, -1.314474906723, 0.7447131399677},
{1, -1.068673995798, 0.4184596094403},
{1, -0.946227509319, 0.2559354008692},
{1, -0.454527052386, 0}
};
doubleIIR_G={ 0.1075595583111,0.0874464034107,0.07742697288753,0.272736473807};
int IIR(int x_ad)
{
int i,y_da;
double x;
double w2,w1,w0,m2,m1,m0;
x = x_ad/32768.0;
for(i=0;i<Nmbr_of_S;i++)
{
m0=x;
m1=m0;
m2=m1;
w2=IIR_NUM*m0+IIR_NUM*m1+IIR_NUM*m2-IIR_DEM*w1-IIR_DEM*w0;
if(w2>32767) w2=32767;
if(w2<-32767) w2=-32767;
w0=w1;
w1=w2;
x=w2*IIR_G;
}
y_da=(int)(x*32768.0);
return y_da;
}
//===========================================================================
// No more.
//===========================================================================
CCS6.0 IIR算法我软仿OK了的，系数matlab生成的。 朋友，你的dsp卡在InitSysCtrl()的问题解决了吗 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{:sweat:} 看看时钟配置的对不对？
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