Press key to control LED status reversal

Subject requirements

Through the programming environment KEIL Realization Key control LED State flip
requirement ： Key controlled LED Point to or box for the same color LED

It is required to use the on the core board LED Lights and on the development board LED Is the synchronization state
 

Train of thought exploration

Two small lights on the core board

LED1 Positive connection PB0, Connect to the breadboard （GND）
When pb0 This port outputs a high level led1 Lighten up

How to latch ： The port level is fixed ,while The above statement reads the port status , Then reverse . For example, the port used to be high level , Switch to low level .

 

About the eight small lights on the development board

Left full light
0x0F
All lights on the right
0xF0
All bright
0xFF
Total destruction
0x00

Because we need to use TM1604, therefore
hardware->TM1640.c
c/c+±>.\Hardware\Tm1640

int main (void){
    // The main program 
	u8 c=0x01;
	RCC_Configuration(); // System clock initialization  
	RTC_Config();  //RTC initialization 
	TM1640_Init(); //TM1640 initialization 
	while(1){
    
		if(RTC_Get()==0){
     // read out RTC Time 
			TM1640_display(0,rday/10);	// God 
			TM1640_display(1,rday%10+10);
			TM1640_display(2,rhour/10); // when 
			TM1640_display(3,rhour%10+10);
			TM1640_display(4,rmin/10);	// branch 
			TM1640_display(5,rmin%10+10);
			TM1640_display(6,rsec/10); // second 
			TM1640_display(7,rsec%10);

			TM1640_led(c); // And TM1640 Connected 8 individual LED All bright 
			c<<=1; // Data shift left   Running water lamp 
			if(c==0x00)c=0x01; //8 Restart after the first light is displayed 
			delay_ms(125); // Time delay 
		}
	}
}

 

Code

main.c

int main (void){
    // The main program 
	// Initializer 
	RCC_Configuration(); // The clock is set 
	LED_Init();//LED initialization 

	KEY_Init();// Key initialization 
	TM1640_Init(); //TM1640 initialization 

	// Main circulation 
 // Initialize the initial state to prevent garbled code from interfering with the program 
	  TM1640_led(0x00);
	while(1){
    

		// There is a latch   Press on for the first time   Press the button for the second time 
		
  // Control the... On the core board LED1
		if(!GPIO_ReadInputDataBit(KEYPORT,KEY1)){
     // Read the level of the key interface 
			delay_ms(20); // Delay de jitter 
			if(!GPIO_ReadInputDataBit(KEYPORT,KEY1)){
     // Read the level of the key interface 
			GPIO_WriteBit(LEDPORT,LED1,(BitAction)(1-GPIO_ReadOutputDataBit(LEDPORT,LED1))); //LED Take the opposite 

// Control the corresponding four small lights on the development board LED1 Sync 
	  if( GPIO_ReadOutputDataBit(LEDPORT,LED1)==1)
				 TM1640_led(0x0F);
				 else
				  TM1640_led(0x00);
				

				while(!GPIO_ReadInputDataBit(KEYPORT,KEY1)); // Wait for the key to release   Prevent the program from running repeatedly without releasing the key 
			}
		}


// Control the... On the core board LED2
				if(!GPIO_ReadInputDataBit(KEYPORT,KEY2)){
     // Read the level of the key interface 
			delay_ms(20); // Delay de jitter 
			if(!GPIO_ReadInputDataBit(KEYPORT,KEY2)){
     // Read the level of the key interface 
			GPIO_WriteBit(LEDPORT,LED2,(BitAction)(1-GPIO_ReadOutputDataBit(LEDPORT,LED2))); //LED Take the opposite 

// Control the corresponding four small lights on the development board LED2 Sync  
				   if( GPIO_ReadOutputDataBit(LEDPORT,LED2)==1)
				 TM1640_led(0xF0);
				 else
				  TM1640_led(0x00);


				while(!GPIO_ReadInputDataBit(KEYPORT,KEY2)); // Wait for the key to release   Prevent the program from running repeatedly without releasing the key 
			}
		}
  // The above is divided into two parts 
 //  The following solves the overall problem 

  // Both lights are on at the same time + Eight lights are on at the same time 
	if( GPIO_ReadOutputDataBit(LEDPORT,LED1)==1&&GPIO_ReadOutputDataBit(LEDPORT,LED2)==1)
			TM1640_led(0xFF);
   // At the same time LED flashing , Add a delay and you won't flash 
			  delay_ms(125); // Time delay 

// Separate control 
			if(	  GPIO_ReadOutputDataBit(LEDPORT,LED1)==1)
				TM1640_led(0x0F);

			    if( GPIO_ReadOutputDataBit(LEDPORT,LED2)==1)
				 TM1640_led(0xF0);
     }
     }