#include "xparameters.h"

#include "stdio.h"

#include "xutil.h"

#include "xbasic_types.h"

#include "xstatus.h"

#include "xgpio.h"

//====================================================

#define LED_DELAY 1000000

#define LED_CHANNEL 1

#define LED_MAX_BLINK 0x1 /* Number of times the LED Blinks */

#define LED_8Bits_GPIO_d_out_pin 0x81400000

u16 style4[6]={0x81,0x42,0x24,0x18,0x24,0x42};

u16 style5[6]={0x81,0xc3,0xe7,0xff,0xe7,0xc3};

XStatus GpioOutputExample(Xuint16 DeviceId, Xuint32 GpioWidth)

{

volatile int Delay;

Xuint32 LedBit,LedLoop,mask;

XStatus Status;

XGpio GpioOutput;

Status = XGpio_Initialize(&GpioOutput, DeviceId);

if (Status != XST_SUCCESS)

{

return XST_FAILURE;

}

XGpio_SetDataDirection(&GpioOutput, LED_CHANNEL, 0x0);

XGpio_DiscreteWrite(&GpioOutput, LED_CHANNEL, 0x0);

/***********方式一 依次闪烁 ********************/

/*for (LedBit = 0x0; LedBit < GpioWidth-1; LedBit++)

{

for (LedLoop = 0; LedLoop < LED_MAX_BLINK; LedLoop++)

{

XGpio_DiscreteWrite(&GpioOutput, LED_CHANNEL, 1 << LedBit);

for (Delay = 0; Delay < LED_DELAY; Delay++);

XGpio_DiscreteClear(&GpioOutput, LED_CHANNEL, 1 << LedBit);

for (Delay = 0; Delay < LED_DELAY; Delay++);

}

}

for (LedBit = 0x0; LedBit < GpioWidth-1; LedBit++)

{

for (LedLoop = 0; LedLoop < LED_MAX_BLINK; LedLoop++)

{

XGpio_DiscreteWrite(&GpioOutput, LED_CHANNEL, 0x80 >> LedBit);

for (Delay = 0; Delay < LED_DELAY; Delay++);

XGpio_DiscreteClear(&GpioOutput, LED_CHANNEL, 0x80 >> LedBit);

for (Delay = 0; Delay < LED_DELAY; Delay++);

}

}

/***********方式二 依次熄灭 然后点亮********************/

/*

mask=0x01;

for (LedBit = 0x0; LedBit < GpioWidth; LedBit++)

{

//for (LedLoop = 0; LedLoop < LED_MAX_BLINK; LedLoop++)

//{

XGpio_DiscreteWrite(&GpioOutput, LED_CHANNEL, mask);

for (Delay = 0; Delay < LED_DELAY; Delay++);

// XGpio_DiscreteClear(&GpioOutput, LED_CHANNEL, 0x80 >> LedBit);

for (Delay = 0; Delay < LED_DELAY; Delay++);

mask=(mask << 1)+0x01;

//}

}

mask=0xff;

for (LedBit = 0x0; LedBit < GpioWidth; LedBit++)

{

//for (LedLoop = 0; LedLoop < LED_MAX_BLINK; LedLoop++)

//{ XGpio_DiscreteWrite(&GpioOutput, LED_CHANNEL, mask);

for (Delay = 0; Delay < LED_DELAY; Delay++);

// XGpio_DiscreteClear(&GpioOutput, LED_CHANNEL, mask);

for (Delay = 0; Delay < LED_DELAY; Delay++);

mask=mask >> 1;

// }

}

*/

/***********方式三 交替闪烁********************/

/* XGpio_DiscreteWrite(&GpioOutput, LED_CHANNEL, 0x55);

for (Delay = 0; Delay < 2*LED_DELAY; Delay++);

XGpio_DiscreteWrite(&GpioOutput, LED_CHANNEL, 0xaa);

for (Delay = 0; Delay < 2*LED_DELAY; Delay++);

*/

/***********方式四********************/

/* u16 i;

for(i=0;i<=5;i++)

{

XGpio_DiscreteWrite(&GpioOutput, LED_CHANNEL, ~style4[i]);

for (Delay = 0; Delay < 2*LED_DELAY; Delay++);

}

*/

/***********方式五********************/

u16 i;

for(i=0;i<=5;i++)

{

XGpio_DiscreteWrite(&GpioOutput, LED_CHANNEL, ~style5[i]);

for (Delay = 0; Delay < 2*LED_DELAY; Delay++);

}

return XST_SUCCESS;

}

int main (void) {

XStatus status;

while(1)

{

print("\r\nRunning GpioOutputExample() for LEDs_8Bit...\r\n");

status = GpioOutputExample(LED_8Bits_GPIO_d_out_pin,8);

if (status == 0)

{

xil_printf("GpioOutputExample PASSED.\r\n");

}

else

{

print("GpioOutputExample FAILED.\r\n");

}

}

return 0;

}