/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
*
© Copyright (c) 2019 STMicroelectronics.
* All rights reserved.
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
// a struct that defines a GPIO device (maps GPIOs memory structure)
typedef struct
{
uint32_t // TODO
uint32_t // TODO
uint32_t // TODO
uint32_t // TODO
uint32_t // TODO
uint32_t // TODO
uint16_t // TODO
uint16_t // TODO
} GPIO_device;
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
// constants for storing addresses of GPIOs
#define GPIOAd // TODO
#define GPIOBd // TODO
#define GPIOCd // TODO
#define GPIODd // TODO
#define GPIOEd // TODO
#define GPIOFd // TODO
#define GPIOGd // TODO
#define GPIOHd // TODO
#define GPIOId // TODO
// MODE constants
#define IN // TODO
#define OUT // TODO
#define AF // TODO
#define ANALOG // TODO
// PUPD constants
#define NO_PULL // TODO
#define PULL_UP // TODO
#define PULL_DOWN // TODO
// OTYPE constants
#define PUSH_PULL // TODO
#define OPEN_DRAIN // TODO
// OSPEED constants
#define S2MHz // TODO
#define S25MHz // TODO
#define S50MHz // TODO
#define S100MHz // TODO
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
void clock_on(GPIO_device * GPIO_addr);
void init_GPIO(GPIO_device * GPIO_addr, uint32_t Pin, uint32_t Mode, uint32_t PUPD, uint32_t OType, uint32_t OSpeed);
void GPIO_pin_write(GPIO_device * GPIO_addr, uint32_t Pin, uint32_t val);
uint32_t GPIO_pin_read(GPIO_device * GPIO_addr, uint32_t Pin);
void delay(void);
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
/* USER CODE BEGIN 2 */
// turn on button's GPIO (button is on PA0)
// TODO
// turn on led's GPIO (leds are on PD12, PD13, PD14, PD15)
// TODO
// init button
// TODO
// init leds
// TODO
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
// read button and trigger led sequence
TODO
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/** Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
// function for turning on a particular GPIO (enables the port clock)
void clock_on(GPIO_device * GPIO_addr)
{
// TODO
}
// function for initializing GPIOs
void init_GPIO(GPIO_device * GPIO_addr, uint32_t Pin, uint32_t Mode, uint32_t PUPD, uint32_t OType, uint32_t OSpeed)
{
// TODO
}
// function for setting the value of an output GPIO pin
void GPIO_pin_write(GPIO_device * GPIO_addr, uint32_t Pin, uint32_t val)
{
TODO
}
// function for reading the value of an input GPIO pin
uint32_t GPIO_pin_read(GPIO_device * GPIO_addr, uint32_t Pin)
{
// TODO
}
// hardcoded delay
void delay(void) {
volatile int d = 500000;
while(d--);
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/