Stm3 (cubeide) lighting experiment

 Create a project ：
 open cubeIDE-->File->new->STM32 Project-> Enter the chip model in the search box in the upper left corner -> Select the chip in the lower right corner 
->next-> stay Project Name Fill in the project name ->Finsh->yes-> Find the pin in the pop-up graphic configuration interface search box 
-> Select the corresponding pin setting input with the left mouse button （ Output ） Pattern -> Right mouse button Pin Reservation Set the corresponding initialization code 
->ProjectManager->Code Generator->Gnernerate peripheral.......'h/c'( It means to generate a pair .h and .c)
->Ctrl+s preservation 

 How to view the relevant register address of the small light bulb ：
1. Check the name of the small light bulb on the development board, such as LED1, without , Skip to step two 
2. Look at the schematic , stay wps Wait for the document viewing tool to open the principle ,Ctrl+f And search in the search box in the upper right corner LED1,
 contrast LED1 Corresponding pin , such as LED1 Corresponding PZ5, Go to the next step ;
3. Check out the chip manual , stay wps Wait for the document viewing tool to open the principle ,Ctrl+f And search in the search box in the upper right corner GPIOZ,
 Check the corresponding Talbel such as Register boundary addresses (continued) This table corresponds to GPIOZ The base address 
 Here's the picture ： You can see GPIOZ The base site of 0x5400400

 Click on GPIO registers You can jump to GPIOZ Operation instructions of relevant registers of 
 Here's the picture ：

1） Set the port mode ： Set to general output mode

Address offset:0x00, It means that the address of this register is GPIOA Offset based on the base address of 0x00
Reset value ：0xFFFFFFFF Corresponding to the reset value 
（volatile The function of is to make the modified variable directly from memery Each time the operation is modified from memory , Instead of operating registers .
	 Use scenarios ：
	1： Operate the variables stored in the device address 
	2. Use other variables in interrupts 
	3. Variables shared in multitasking 
)

#define GPIOZ_PORT_MODE_REGISTER (volatile usigned int*)(0x0x5400400+0x00)// Set register address 
*GPIOZ_PORT_MODE_REGISTER=0XFFFFFFFF;// Yes GPIOZ_PORT_MODE_REGISTER Reset 
*GPIOZ_PORT_MODE_REGISTER=01<<10;// Yes PZ5 Conduct mode Set up , Set to general output 
 The mode is set above P5 The mode of is general output ;

 Next, set the type of output , Refer to port output register .

2） Set the port output register ： Set to open drain output

#define GPIOZ_PORT_OUTPUT_TYPE_REGISTER (volatile usigned int*)(0x0x5400400+0x04)// Set register address 
*GPIOZ_PORT_OUTPUT_TYPE_REGISTER=0X00000000;// Yes GPIOZ_PORT_OUTPUT_TYPE_REGISTER Reset 
*GPIOZ_PORT_OUTPUT_TYPE_REGISTER=1<<5;// Yes PZ5 Set it up , Set the output mode to open drain output 
 The output mode is set above ： Open drain output 

 Next, set the port output speed register ： Also called port speed register 

3） Port output speed register ： Set the speed of the port to High speed

#define GPIOZ_PORT_OUTPUT_SPEED_REGISTER (volatile usigned int*)(0x0x5400400+0x08)// Set register address 
*GPIOZ_PORT_OUTPUT_SPEED_REGISTE=0X00000000;// Reset GPIOZ_PORT_OUTPUT_SPEED_REGISTE register 
*GPIOZ_PORT_OUTPUT_SPEED_REGISTE=10<<10;// Set up PZ The speed of is Hight speed

 Next, set the high and low level of the port , Because it's output , Therefore, the port output data register is selected instead of the port input data register 

4） Port output data register

#define GPIOZ_PORT_OUTPUT_DATA_REGISTER (volatile usigned int*)(0x0x5400400+0x14)// Set register address 
*GPIO_PORT_OUTPUT_DATA_REGISTER=0x00000000;// Reset GPIO_PORT_OUTPUT_DATA_REGISTER register 
*GPIO_PORT_OUTPUT_DATA_REGISTER=1<<5;// Set up PZ5 High level 

summary

#define GPIOZ_PORT_MODE_REGISTER (volatile usigned int*)(0x0x5400400+0x00)// Set register address 
#define GPIOZ_PORT_OUTPUT_TYPE_REGISTER (volatile usigned int*)(0x0x5400400+0x04)// Set register address 
#define GPIOZ_PORT_OUTPUT_SPEED_REGISTER (volatile usigned int*)(0x0x5400400+0x08)// Set register address 
#define GPIOZ_PORT_OUTPUT_DATA_REGISTER (volatile usigned int*)(0x0x5400400+0x14)// Set register address 
void init_GPIO_OUT(void)
{
    
*GPIOZ_PORT_MODE_REGISTER=0XFFFFFFFF;// Yes GPIOZ_PORT_MODE_REGISTER Reset 
*GPIOZ_PORT_OUTPUT_TYPE_REGISTER=0X00000000;// Yes GPIOZ_PORT_OUTPUT_TYPE_REGISTER Reset 
*GPIOZ_PORT_OUTPUT_SPEED_REGISTE=0X00000000;// Reset GPIOZ_PORT_OUTPUT_SPEED_REGISTE register 
*GPIO_PORT_OUTPUT_DATA_REGISTER=0x00000000;// Reset GPIO_PORT_OUTPUT_DATA_REGISTER register 
}
void SET_LED(unsigned int x)
{
    
*GPIOZ_PORT_MODE_REGISTER|=1<<(x<<1);// Yes PZ5 Conduct mode Set up , Set to general output 
*GPIOZ_PORT_OUTPUT_TYPE_REGISTER|=1<<5;// Yes PZ5 Set it up , Set the output mode to open drain output 
*GPIOZ_PORT_OUTPUT_SPEED_REGISTE|=10<<(x<<1);// Set up PZ The speed of is Hight speed
}
int main(){
    

		init_GPIO_OUT();
		
		SET_LED(5);
		
		while(1){
    
		*GPIO_PORT_OUTPUT_DATA_REGISTER|=1<<5;// Set up PZ5 High level 
		HAL_Delay(100);
		*GPIO_PORT_OUTPUT_DATA_REGISTER&=~(1<<5);// Set up PZ5 Low level 
				}

}

The above is completed in STM32 Develop the operation of the flow lamp on the board