Create a Project with uVision

Run Keil 𝝁Vision IDE

Project > New 𝝁Vision Project…

Do not use 한글경로 (띄어쓰기) for Project Directory path

Select Device for Target

Device > search for STM32F411RETx

If you use other board, STM32F411 etc, choose the appropriate device.

Manage Run-Time Environment

Select CMSIS>CORE , Device>Setup

This will use necessary library to start the MCU and GPIO drivers.

Check if the following startup codes are included under Device folder

‘startup_stm32f411xe.s’, ‘system_stm32f411xx.c’

Project> Options for Target: (Alt+F7)

Output tab > Create HEX File checked

This will create HEX file that contains the machine instruction codes

C/C++ Tab> Version of C and C++ should be <default>

Linker Tab> Use Memory Layout from Target Dialog checked

This will use the memory(register) layout of the specific target board

Debug tab> Use: ST-Link Debugger > Settings

Must connect MCU(internal ST-Link) to PC
Use: ST-LInk Debugger
Press Settings
Debug Adapter> Unit: ST-LINK/V2-1
Debug> Connect: under Reset

This will configure USB link to MCU hardware. It will use ST-Link debugger embedded on the target board to debug the program. You will need to connect the target board to your PC for debugging

Create Source file

Project Tab> Target1> Source Group1 Right Click > Add New item to Group

Name the source file as " TU-CreateProject-Main.c"

한글 경로 사용하면 안됨!!

Use sample source codes for test

int main(void){
	int num1 = 1;
	int num2 = 2;
	int numout=num1+num2;		
	printf("hello handong");
	return 0;
}

#include "stm32f4xx.h"

#define LED_PIN    5
#define BUTTON_PIN 13

// LED Blink by Button Pin (Button #2)

int main(void) {
		/* Part 1. RCC Register Setting */
		// RCC Control Register (HSI)
		RCC->CR |= ((uint32_t)RCC_CR_HSION); 
		// wait until HSI is ready
		while ( (RCC->CR & (uint32_t) RCC_CR_HSIRDY) == 0 ) {;} 
		// Select HSI as system clock source 
		// RCC Configuration Register 
		RCC->CFGR &= (uint32_t)((uint32_t) ~(RCC_CFGR_SW)); 
		RCC->CFGR |= (uint32_t)RCC_CFGR_SW_HSI;  
		// Wait till HSI is used as system clock source 
		while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != 0 ) {;} 
		// HSI is used as system clock         
		// RCC Peripheral Clock Enable Register 
		RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;
		
		/* Part 2. GPIO Register Setting */			
		// GPIO Mode Register
		GPIOA->MODER &= ~(3UL<<(2*LED_PIN)); 
		GPIOA->MODER |=   1UL<<(2*LED_PIN);  
		// GPIO Output Speed Register 
		GPIOA->OSPEEDR &= ~(3UL<<(2*LED_PIN));
		GPIOA->OSPEEDR |=   2UL<<(2*LED_PIN);  
		// GPIO Output Type Register  
		GPIOA->OTYPER &= ~(1UL<<LED_PIN);      
		// GPIO Pull-Up/Pull-Down Register 
		GPIOA->PUPDR  &= ~(3UL<<(2*LED_PIN));
		
			// Dead loop & program hangs here
     while(1){
			 GPIOA->ODR = 1UL << LED_PIN;  
		}
}