基于LPC1114的学习型红外遥控器

***************************/

void GPIOIntEnable( uint32_t portNum, uint32_t bitPosi )

{

switch ( portNum )

{

case PORT0:

LPC_GPIO0->IE |= (0x1< break;

case PORT1:

LPC_GPIO1->IE |= (0x1< break;

case PORT2:

LPC_GPIO2->IE |= (0x1< break;

case PORT3:

LPC_GPIO3->IE |= (0x1< break;

default:

break;

}

return;

}

/*****************************************************************************

** Function name: GPIOIntDisable

**

** Descriptions: Disable Interrupt Mask for a port pin.

**

** parameters: port num, bit position

** Returned value: None

**

*****************************************************************************/

void GPIOIntDisable( uint32_t portNum, uint32_t bitPosi )

{

switch ( portNum )

{

case PORT0:

LPC_GPIO0->IE &= ~(0x1< break;

case PORT1:

LPC_GPIO1->IE &= ~(0x1< break;

case PORT2:

LPC_GPIO2->IE &= ~(0x1< break;

case PORT3:

LPC_GPIO3->IE &= ~(0x1< break;

default:

break;

}

return;

}

/*****************************************************************************

** Function name: GPIOIntStatus

**

** Descriptions: Get Interrupt status for a port pin.

**

** parameters: port num, bit position

** Returned value: None

**

*****************************************************************************/

uint32_t GPIOIntStatus( uint32_t portNum, uint32_t bitPosi )

{

uint32_t regVal = 0;

switch ( portNum )

{

case PORT0:

if ( LPC_GPIO0->MIS & (0x1< regVal = 1;

break;

case PORT1:

if ( LPC_GPIO1->MIS & (0x1< regVal = 1;

break;

case PORT2:

if ( LPC_GPIO2->MIS & (0x1< regVal = 1;

break;

case PORT3:

if ( LPC_GPIO3->MIS & (0x1< regVal = 1;

break;

default:

break;

}

return ( regVal );

}

/*****************************************************************************

** Function name: GPIOIntClear

**

** Descriptions: Clear Interrupt for a port pin.

**

** parameters: port num, bit position

** Returned value: None

**

*****************************************************************************/

void GPIOIntClear( uint32_t portNum, uint32_t bitPosi )

{

switch ( portNum )

{

case PORT0:

LPC_GPIO0->IC |= (0x1< break;

case PORT1:

LPC_GPIO1->IC |= (0x1< break;

case PORT2:

LPC_GPIO2->IC |= (0x1< break;

case PORT3:

LPC_GPIO3->IC |= (0x1< break;

default:

break;

}

return;

}

/******************************************************************************

** End Of File

******************************************************************************/

/*****************************************************************************

** 函数名: GPIOSetDir

** 功能: 设置GPIO口方向

** 参数: 端口号(PORT0-PORT3), 第几位(0-31), 方向 (1 输出, 0 输入)

** 返回值: 无

*****************************************************************************/

/*****************************************************************************

** 函数名: GPIOSetValue

** 功能: 设置端口的值

** 参数: 端口号(PORT0-PORT3), 第几位(0-31), 方向 (1 输出, 0 输入)

** 返回值: 无

*****************************************************************************/

/*****************************************************************************

** 函数名: GPIOSetInterrupt

** 功能: 设置中断

** 参数: 端口号(PORT0-PORT3),

第几位(0-31),

触发方式(边缘触发还是电平触发 0边缘，1电平)，

单/双电平触发，(0单电平，1，双电平)，

根据触发方式选类型(0上升沿或高电平，1下降沿或低电平)

** 返回值: 无

*****************************************************************************/

/*****************************************************************************

** 函数名: GPIOIntEnable

** 功能: 允许I/O引脚中断

** 参数: 端口号