dsp流水灯

字

实

验

现

象

结

束

< br>一

直

显示

1

六

程序部分源代码

:

#include

// DSP281x Headerfile Include File

#include

// DSP281x Examples Include File

#define SEG_1 *(Uint16 *)0x80000

//

第一位数码管地址

#define LED *(Uint16 *)0x2003

//LED

地址

Uint16 i = 0;

Uint16 seg_table[] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d, 0x07,0x7f,0x6f};

void main(void)

{

// Step 1. Initialize System Control:

// PLL, WatchDog, enable Peripheral Clocks

// This example function is found in the DSP281x_SysCtrl.c file.

InitSysCtrl();

// Step 2. Initalize GPIO:

// This example function is found in the DSP281x_Gpio.c file and

// illustrates how to set the GPIO to it's default state.

//

InitGpio();

// 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 DSP281x_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 DSP281x_DefaultIsr.c.

// This function is found in DSP281x_PieVect.c.

InitPieVectTable();