maylove 发表于 2016-5-6 09:34
你的程序在哪里？
#include "DSP2833x_Device.h" // DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h" // DSP2833x Examples Include File
/****************端口宏定义*****************/
#define S1 GpioDataRegs.GPADAT.bit.GPIO12
/****************常量宏定义*****************/
/***************全局变量定义****************/
Uint32 temp;
Uint32 direction;
/****************函数声明*******************/
void Gpio_select(void); //gpio端口配置子程序
void delay_loop(void);
void Scan_Key(void);
void main(void)
{
// 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
// For this example use the following configuration:
Gpio_select();
// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts
DINT;
// Initialize 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();
// Step 4. Initialize all the Device Peripherals:
// This function is found in DSP2833x_InitPeripherals.c
// InitPeripherals(); // Not required for this example
// Step 5. User specific code:
GpioDataRegs.GPBDAT.all =0x30000000;//GPIO60,61,64,65,66,67,68输出清1，使LED1灯灭
GpioDataRegs.GPCDAT.all =0x0000001f;
direction=0;
for(;;)
{
unsigned int i;
if(direction%2!=0)//控制流水灯的方向
temp=0x10000000;
else
temp=0x20000000;
while(temp!=0x40000000&&temp!=0x08000000)//轮流点亮GPIO60,61；
{
//delay_loop();
GpioDataRegs.GPBCLEAR.all |=temp;
delay_loop();
GpioDataRegs.GPBSET.all |=temp;
if(direction%2!=0)//控制流水灯的方向
temp=1;
}
if(temp==0x40000000)//根据temp值选择GPIO64-GPIO67是从64开始还是从67开始点亮LED
temp=0x00000001;
else
temp=0x00000010;
while(temp!=0x00000020&&temp!=0x00000000)//轮流点亮GPIO64-GPIO67；
{
//delay_loop();
GpioDataRegs.GPCCLEAR.all |=temp;
delay_loop();
GpioDataRegs.GPCSET.all |=temp;
if(direction%2!=0)//控制流水灯的方向
temp=1;
}
}
}
void delay_loop()
{
Uint32 i;
Uint32 j;
for(i=0;i
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