嵌入式原理之A8机器实现蜂鸣器、走马灯等控制操作代码

#include "uart.h" // 我的按键GPJ1-1，GPJ4-4 /*按键相关的寄存器地址*/ #define GPJ1CON (*(volatile unsigned int *)0xE0200260) #define GPJ1DAT (*(volatile unsigned int *)0xE0200264) #define GPJ1PUD (*(volatile unsigned int *)0xE0200268) #define GPJ4CON (*(volatile unsigned int *)0xE02002C0) #define GPJ4DAT (*(volatile unsigned int *)0xE02002C4) /*LED1相关的寄存器地址*/ #define GPJ2CON (*(volatile unsigned int *)0xE0200280) #define GPJ2DAT (*(volatile unsigned int *)0xE0200284) /*中断相关寄存器地址*/ #define GPJ1_INT_CON (*(volatile unsigned int *)0xE0200748) #define GPJ1_INT_MASK (*(volatile unsigned int *)0xE0200948) #define GPJ1_INT_PEND (*(volatile unsigned int *)0xE0200A48) #define VIC0INTENABLE (*(volatile unsigned int *)0xF2000010) #define VIC0INTSELECT (*(volatile unsigned int *)0xF200000C) #define VIC0VECTADDR30 (*(volatile unsigned int *)0xF2000178) #define VIC0ADDRESS (*(volatile unsigned int *)0xF2000F00) #define VIC1ADDRESS (*(volatile unsigned int *)0xF2100F00) #define VIC2ADDRESS (*(volatile unsigned int *)0xF2200F00) #define VIC3ADDRESS (*(volatile unsigned int *)0xF2300F00) /*ADC相关寄存器地址*/ #define ADCTS_BASE 0xE1700000 #define TSCON0 ( *((volatile unsigned int *)(ADCTS_BASE+0x4)) ) #define TSDLY0 ( *((volatile unsigned int *)(ADCTS_BASE+0x8)) ) #define TSDATX0 ( *((volatile unsigned int *)(ADCTS_BASE+0xc)) ) #define TSDATY0 ( *((volatile unsigned int *)(ADCTS_BASE+0x10)) ) #define TSADCCON0 ( *((volatile unsigned int *)(ADCTS_BASE+0x0)) ) #define TSCON0 ( *((volatile unsigned int *)(ADCTS_BASE+0x4)) ) #define ADCMUX ( *((volatile unsigned int *)(ADCTS_BASE+0x1c)) ) /*蜂鸣器相关寄存器地址*/ #define GPD0CON (*(volatile unsigned long *)0xE02000A0) #define GPD0DAT (*(volatile unsigned long *)0xE02000A4) extern unsigned int IRQ_handle; unsigned int j = 1; //初始化 beep void beep_init(void) { GPD0CON &= ~(0xf); //清空低四位 GPD0CON |= 1<<0; //配置为输出模式 } void beep_on(void) { GPD0DAT |= 1<<0; } void beep_off(void) { GPD0DAT &= ~(1<<0); } void led_on(int n) { n=n-1; GPJ2DAT = GPJ2DAT | (1<<n);//点亮第n号灯 } void led_off(int n) { n=n-1; GPJ2DAT = GPJ2DAT & ~(1<<n);//关闭第n号灯 } void led_init() { GPJ2CON = GPJ2CON & 0x00000000; //清除所有灯对应的控制引脚 GPJ2CON = GPJ2CON | 0x11111111; //所有指示灯设置为输出模式 } void adc_init() { // 使能预分频功能，设置 A/D 转换器的时钟 = PCLK/(65+1) TSADCCON0 &= ~((1<<1)|(1<<16)|(1 << 14) | (0xff<< 6)); TSADCCON0 |= (1<<16)|(1 << 14) | (65 << 6); // 清除位[2]，设为普通转换模式 TSADCCON0 &= ~(1<<2); // 选择通道 ADCMUX = 0; // 设置位[0]为 1，启动 A/D 转换 TSADCCON0 |= (1 << 0); // 当 A/D 转换真正开始时，位[0]会自动清 0 while (TSADCCON0 & (1 << 0)); //开启读取结果后，自动开启下次转换 TSADCCON0 |= (1<<1); } void key_init() { /*GPJ1_1 =1111B,配置为中断功能*/ GPJ1CON = GPJ1CON & 0xffffff0f; GPJ1CON |= GPJ1CON | (0xF<<4*1); /*GPJ1_1,下拉使能*/ GPJ1PUD = GPJ1PUD & 0xffc3; //清除[2-3] GPJ1PUD = GPJ1PUD | (0x14); /*设置CPJ4_4设置为输出模式，输出高电平*/ GPJ4CON = GPJ4CON & 0xfff0ffff; //清除[16-19],设置为 0 GPJ4CON = GPJ4CON | 0x10000; //设置[16-19]四位为 0001，即设置为输出模式 GPJ4DAT = GPJ4DAT | 0x10 ; //设置 GPJ4_4 输出高电平 } void clear_Vicaddress() { VIC0ADDRESS = 0; VIC1ADDRESS = 0; VIC2ADDRESS = 0; VIC3ADDRESS = 0; } void interrupt_init() { /*上升沿触发，芯片手册251*/ GPJ1_INT_CON = GPJ1_INT_CON & 0xffffff0f; GPJ1_INT_CON = GPJ1_INT_CON |(0x3<<4); //左移4位 需修改 /*取消中断屏蔽位，芯片手册297*/ GPJ1_INT_MASK = GPJ1_INT_MASK & 0xfd; // 需修改 /*清除中断挂起位*/ GPJ1_INT_PEND = GPJ1_INT_PEND & (1<<1); // 需修改 /*设置为IRQ*/ VIC0INTSELECT = 0; /*安装中断服务函数*/ VIC0VECTADDR30 = &IRQ_handle; /*清中断*/ VIC0ADDRESS = 0; /*使能中断，芯片手册562*/ VIC0INTENABLE = VIC0INTENABLE | (0x1<<30); } void delay(unsigned int n) { for(;n>0;n--); } void irqhandler() { unsigned int result; /*添加了消抖的功能 思路：先检测按键是否按下，按下的话，延时一段时间，再次检测是否按下， 还是按下的话，就证明按键真的按下了，然后执行点灯程序*/ //用作关闭蜂鸣和灯 if((GPJ1DAT & (1<<1))==0x2 && j<=5) { delay(0x10000); if((GPJ1DAT & (1<<1))==0x2 && j<=5) { j++; // 检测位[15]，当它为1时表示转换结束,不为1则一直查询 while (!(TSADCCON0 & (1 << 15))); // 读取数据 result = TSDATX0 & 0xfff; printf("adc = %d ",result); printf("\n"); delay(0x100000); if(j ==6 ) { if(result > 2200){ int m = 10;//总的次数 int k=10;//用来存灯的下标 while(m--) { if(k >8){ beep_on(); led_on(4); delay(0x150000); beep_off(); led_off(4); delay(0x150000); } else if(k>1){ beep_on(); led_on(k); delay(0x50000); beep_off(); led_off(k); delay(0x50000); } else{ if(k<=1){ beep_on(); led_on(k); } } k--; } } } } } if((GPJ1DAT & (1<<1))==0x2 && j>=6) { delay(0x10000); if((GPJ1DAT & (1<<1))==0x2 && j>=6) { beep_off(); led_off(1); printf("###over### "); printf("\n"); } } /*清除中断挂起位*/ GPJ1_INT_PEND = GPJ1_INT_PEND & (1<<1); clear_Vicaddress(); } void main(void) { adc_init(); beep_init(); led_init(); key_init(); interrupt_init(); printf("\n"); int i; while(1) { i=1; } }