main.c
#include “LPC11XX.h”
#include “gpio.h”
#include “timer16.h”
#include “main.h”
#include “Key.h”
#include “LCD.h”
void Delay_Sec(unsigned char Time) //1s*Time延时函数
{
u16 i;
while(Time)
{
for(i=0;i<3000000;i++);
Time–;
}
}
void Delay_Ms(unsigned int Time) //1Ms*Time延时函数
{
u16 i;
while(Time)
{
for(i=0;i<3000;i++);
Time–;
}
}
void Delay_Us(unsigned int Time) //1Us*Time延时函数
{
u8 i;
while(Time)
{
for(i=0;i<3;i++);
Time–;
}
}
int main(void)
{
//SystemInit(); //体系初始化–主要是设置主时钟
//GPIOInit(); //IO口初始化–主要是敞开GPIO时钟
//GPIOSetDir( 0, 3, 1 ); //设置P0.3为输出(LPC1114单片机，输出需设置为1，输入需设置为0)
LPC_GPIO0->DIR |= (0x1<<3); //设置P0.3为输出
LPC_GPIO2->DIR |= (0x1<<9);
Key_GPIO_Init();
Key_Intrrupt_Init();
while(1)
{
//GPIOSetValue( 0, 3, 0 ); //给P0.3位写0
//LPC_GPIO0->DATA &= ~(0x1<<3); //给P0.3位写0
LCD_RW_High;
//for(i=0;i<0xFFFFF;i++); //延时
Delay_Ms(100); //延时
//GPIOSetValue( 0, 3, 1 ); //给P0.3位写1
//LPC_GPIO0->DATA |= (0x1<<3); //给P0.3位写1
LCD_RW_Low;
//for(i=0;i<0xFFFFF;i++); //延时
Delay_Ms(100); //延时
}
}
key.c
#include “LPC11XX.h”
#include “gpio.h”
#include “main.h”
#include “Key.h”
void Key_GPIO_Init(void)
{
LPC_GPIO1->DIR &= ~(0x1<<8); //设置P1.8为输入
}
void Key_Intrrupt_Init(void)
{
/*********装备中止*********/
GPIOSetInterrupt(1,8,1,0,0); //P1.8低电平触发中止
/*********使能中止*********/
GPIOIntEnable(1,8);
/*********使能中止进口*********/
NVIC_EnableIRQ(EINT1_IRQn);
}
gpio.c
#include “LPC11xx.h” /* LPC11xx Peripheral Registers */
#include “gpio.h”
void PIOINT1_IRQHandler(void)
{
uint32_t regVal;
gpio1_counter++;
regVal = GPIOIntStatus( 1, 8 );
if ( regVal )
{
LPC_GPIO0->MASKED_ACCESS[(1<<3)] = (0<<3);
Delay_Ms(2000);
LPC_GPIO0->MASKED_ACCESS[(1<<3)] = (1<<3);
Delay_Ms(2000);
LPC_GPIO0->MASKED_ACCESS[(1<<3)] = (0<<3);
Delay_Ms(2000);
LPC_GPIO0->MASKED_ACCESS[(1<<3)] = (1<<3);
Delay_Ms(2000);
//GPIOSetValue( 0, 3, 0 ); //给P0.3位写0
//Delay_Ms(1000);
//GPIOSetValue( 0, 3, 1 ); //给P0.3位写0
//Delay_Ms(1000);
GPIOIntClear( 1, 8 );
}
return;
}
