1、IC解密本系统采用1602显示时分秒，4个按键可以调整时间，一个按键是选择按键，一个按键是加，一个按键是减，一个按键是退出按键。
2、IC解密当选择按键按下的时候，该选择位闪烁。
主函数代码：
- IC解密#include "delay.h"
- IC解密#include "sys.h"
- IC解密#include "1602.h"
- #include "timer.h"
- #include "key.h"
- u8 table1[]="liyang " ;
- u8 table2[]="9876543210654321" ;
- signed char miao,fen,shi;
- u8 flag_100ms=0;
- u16 count_ms=0;
- u8 S1num;
- /*******************主函数************************/
- int main(void)
- {
- //u8 t;
- delay_init();//延时函数初始化
- LCD1602_Init();//LCD1602初始化函数
- TIM3_Int_Init(999,71);//1MS
- TIM4_Int_Init(999,71);//1MS
- KEY_Init(); //按键初始化
- #[color=#0066cc]IF[/color] 0 //注释掉程序
- LCD_Write_Command(0x80);//第一行的首地址
- for(i=0;i<16;i++)
- {
- LCD_Write_Date(table1[i]);
- delay_ms(3);
- }
- LCD_Write_Command(0xc0);//第二行的首地址
- for(i=0;i<16;i++)
- {
- LCD_Write_Date(table2[i]);
- delay_ms(3);
- }
- #endif
- while(1)
- {
-
- display(shi,fen,miao);
- keyscan();
- }
-
- }
- 定时器代码
- void TIM3_Int_Init(u16 arr,u16 psc)
- {
- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
- NVIC_InitTypeDef NVIC_InitStructure;
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); //[color=#0066cc]时钟[/color]使能
- //定时器TIM3初始化
- TIM_TimeBaseStructure.TIM_Period = arr; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值
- TIM_TimeBaseStructure.TIM_Prescaler =psc; //设置用来作为TIMx时钟频率除数的预分频值
- TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //设置时钟分割:TDTS = Tck_tim
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM向上计数模式
- TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //根据指定的参数初始化TIMx的时间基数单位
- TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE ); //使能指定的TIM3中断,允许更新中断
- //中断优先级NVIC设置
- NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; //TIM3中断
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占优先级0级
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //从优先级3级
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
- NVIC_Init(&NVIC_InitStructure); //初始化NVIC寄存器
- TIM_Cmd(TIM3, ENABLE); //使能TIMx
- }
- //3中断服务程序
- void TIM3_IRQHandler(void) //TIM3中断
- {
- static u16 count=0;
- if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET) //检查TIM3更新中断发生与否
- {
- TIM_ClearITPendingBit(TIM3, TIM_IT_Update ); //清除TIMx更新中断标志
- count++;
- count_ms++;
- if(count_ms==500)
- {
- count_ms=0;
- flag_100ms=~flag_100ms;
- }
- if(count==1000)
- {
- count=0;
- miao++;
- if(miao==60)
- {
- miao=0;
- fen++;
- if(fen==60)
- {
- fen=0;
- shi++;
- if(shi==24)
- shi=0;
- }
- }
- }
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芯片解密
