Small open source projects based on stm32f1

One . brief introduction

In the previous articles , Each part of the project is briefly introduced , Today, I share it with you as a complete version . Like it , You can get it yourself .

Demo video
If you have watched the demo video , This is a good lesson , Or as a first choice for beginners .

Welcome to WeChat official account.
FPGA The journey reply STM32-Project1 Get download link

Two . Introduction to the project framework

This project does not use RTOS operating system , It's a bare metal program , It uses a front and back-end framework . The interrupt callback function is used to query whether each state occurs and mark it , And then in main Function .

Entering main After the function , Is to initialize each hardware part , And load the startup animation , This is also a standard process .

uart_init(115200);
delay_init();
LCD_Init();
TIM4Init();    	// Time delay 
InfraredInit();
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
LCDDMAFullOn(BackGround);
Boot_Animation();  // Power on animation 
LCDDMAFullOn(BackGround);

Then, according to the current mode, enter into different if Statement to execute the corresponding function , Default to main interface , Inside is a while Loop statement . Perform the corresponding operation through the value of the key , After each operation , To reset the state of the key .SelectUp and SelectDown It refers to the up and down movement of the cursor , When switching states , utilize break You can jump out .
The implementation process of every other state is written in this way , Very easy to expand .

if(CurrMode == Main)  // main interface 
{
    	
	LCDDMAFullOn(BackGround);
	MainInterface();
	while(1)
	{
    
		if(KEYState == KEYLEFT)
		{
    
			SelectUp();
			KEYState = KEYNONE;
		}
		else if(KEYState == KEYRIGHT)
		{
    
			SelectDown();	
			KEYState = KEYNONE;
		}
		else if(KEYState == KEYUP)
		{
    
			CurrMode = (enum State)(CurrIndex + 1);
			if(CurrMode == 3)
				CurrMode = Photo;
			KEYState = KEYNONE;
			break;
		}
	}
}