STM32简易交通灯设计（定时可调)

//-----定时设置函数-------

void LED_SET_GREEN(u8 k)

{

LCD_ShowNum(160,235,k,2,16);

}

void LED_SET_YELLOW(u8 k)

{

LCD_ShowNum(160,145,k,2,16);

}

void LED_SET_RED(u8 k)

{

LCD_ShowNum(160,55,k,2,16);

}

//-----定时器中断函数---扫描按键和显示设定值用----

void TIM3_IRQHandler(void)

{

if(TIM3->SR&0x0001)

{

scan_key1();

scan_key2();

scan_key3();

LED_SET_RED(R);

LED_SET_GREEN(G);

LED_SET_YELLOW(Y);

}

TIM3->SR=~(1<<0);

}

//------主函数-----------

int main(void)

{

u16 code; //TFT驱动芯片代号

int i;

Stm32_Clock_Init(9);

delay_init(72);

uart_init(72,9600);

printf("uart is ok. ");

Timer_init(300,7199); //定时器初始化 设定溢出时间是 30ms

printf("time_init is ok. ");

LCD_Init(); //TFT-LCD初始化

printf("lcd_init is ok.");

key_init(); //按键I/O口设置初始化

printf("key_init is ok.");

JTAG_Set(JTAG_SWD_DISABLE); //关闭JTAG调试器

code=LCD_ReadReg(0x0000);

delay_ms(500);

printf("deiver code is %ld",code); //读取驱动芯片型号是发送到串口

LCD_Fill(30,200,100,270,BLACK);

LCD_Fill(30,110,100,180,BLACK);

LCD_Fill(30,20,100,90,BLACK);

LCD_ShowString(110,15,"Show");

LCD_ShowString(110,30,"Time");

LCD_ShowString(160,15,"Set ");

LCD_ShowString(160,30,"Time");

LED_GREEN(0);

LED_YELLOW(0);

LED_RED(0);

while(1)

{

for(i=G;i>=0;i--) //绿灯控制

{

LED_GREEN(i);

LCD_Fill(30,200,100,270,GREEN);

delay_ms(1000);

LCD_Fill(30,200,100,270,BLACK);

delay_ms(1000);

}

for(i=Y;i>=0;i--) //黄灯控制

{

LED_YELLOW(i);

LCD_Fill(30,110,100,180,YELLOW);

delay_ms(1000);

LCD_Fill(30,110,100,180,BLACK);

delay_ms(1000);

}

for(i=R;i>=0;i--) //红灯控制

{

LED_RED(i);

LCD_Fill(30,20,100,90,RED);

delay_ms(1000);

LCD_Fill(30,20,100,90,BLACK);

delay_ms(1000);

}

}

}

//-------各类库函数省略---------