Tutorial: Create a Project with uVision
1. Open Keil 𝝁Vision IDE and Create a new Project
Project > New 𝝁Vision Project
Create this tutorial project under the folder ..\..\repos\EC\tutorial\
Name the project as TU_CreateProject.
Check you have a new folder named as
..\..\repos\EC\tutorial\TU_CreateProject\
Do not use 한글경로 (띄어쓰기) for Project Directory path
2. Project Setting
Select Device for Target
Target_1 (Right Click) > Options for Target > Device tab
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’
Setup in Options for Target
Project> Options for Target (Alt+F7)
Output Tab > check on Create HEX File :
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
You must connect MCU (internal ST-Link) to PC for this setting.
Use: ST-LInk Debugger
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
3. Create main program
Project Tab> Target1> Source Group1 (Right Click) : Add New item to Group
Name the source file as TU_CreateProject_Example_main.c
경로, 폴더명에 한글 경로 사용하면 안됨!!
특히, Window User 이름이 한글이면 문제가 발생
Use sample source codes for test.
Use the same file of
TU_CreateProject_Example_main.c.Just change the source codes
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){
// Turn ON LED2
GPIOA->ODR |= (1UL << LED_PIN);
// Turn OFF LED2
//GPIOA->ODR &= ~(1UL << LED_PIN);
}
}4. Build and Run
Build Target (F7)
Build the program of Example 2
Press F7 and build the target and check if there is any error message
Download Target (F8)
If the MCU is connected to PC, flash the output program file
Flash>Download (F8)
For Example 2:
Check if the LED_2 of MCU (Nucleo-F411RE) board is turned on when the blue button (B2) is pressed
Tips
Instead of starting from a blank project, use example codes and tutorial codes provided by ARM and STM webpage.
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