/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2026 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stm32f4xx_it.h"
#include "stdint.h"
#include "stm32f411_sfr.h"
#include "rcc_drv.h"
#include "gpio_drv.h"
#include "uart_drv.h"
#include "stdio.h"
#include "events.h"
#include "stimer.h"
#include "counter.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
enum {
	STATE_SLOW,
	STATE_MES,
	STATE_FAST,
	STATE_RESTART,

	// ...
	STATES_TOTAL
} state;
/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
#define ENABLE (1U)
#define STACK_SIZE 100
/* 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 -----------------------------------------------*/

/* USER CODE BEGIN PFP */
void delay(uint32_t ms);
void alarmMes(uint16_t val);
void printValue(uint16_t val);

event_t getEvent();
/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

uint8_t buttonPressed = 0;

uint8_t bl_enable = 1;

void newData(uint8_t data){
	UART_WriteChar(USART2, data);
	if (data == '0'){
		GPIO_Write_Pin(GPIOA, 5, GPIO_STATE_LOW);
	}
	else{
		GPIO_Write_Pin(GPIOA, 5, GPIO_STATE_HIGH);
	}
}

uint32_t stack_mes1[STACK_SIZE];
uint32_t* sp_mes1 = &stack_mes1[STACK_SIZE];

uint32_t stack_mes2[STACK_SIZE];
uint32_t* sp_mes2 = &stack_mes2[STACK_SIZE];

void mes1(){
	while (1){
		UART_WriteStr(USART2, "Process 1\n\r");
		delay(1000);
	}
}

void mes2(){
	while (1){
		UART_WriteStr(USART2, "Process 2\n\r");
		delay(1000);
	}
}

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{

  /* USER CODE BEGIN 1 */
	RCC_Init();
	SysTickInit();
	GPIO_Interrupt_Enable();
	RCC->AHB1ENR.B.GPIOAEN = ENABLE;
	RCC->AHB1ENR.B.GPIOCEN = ENABLE;

	UART_Init();
	UART_SetCallback(newData);
  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */


  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */


  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */

  /* USER CODE BEGIN 2 */



//  GPIOA->MODER.B.MODER5 = GPIO_TYPE_OUTPUT;
  GPIO_Set_Pin_Mode(GPIOA, 5, GPIO_MODE_OUTPUT);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */

  *(--sp_mes1) = 0x61000000U; //xPSR
  *(--sp_mes1) = (uint32_t)&mes1; //PC
  *(--sp_mes1) = 1; //LR
  *(--sp_mes1) = 2; //R12
  *(--sp_mes1) = 3; //R3
  *(--sp_mes1) = 4; //R2
  *(--sp_mes1) = 5; //R1
  *(--sp_mes1) = 6; //R0

  *(--sp_mes2) = 0x61000000U; //xPSR
  *(--sp_mes2) = (uint32_t)&mes2; //PC
  *(--sp_mes2) = 7; //LR
  *(--sp_mes2) = 8; //R12
  *(--sp_mes2) = 9; //R3
  *(--sp_mes2) = 10; //R2
  *(--sp_mes2) = 11; //R1
  *(--sp_mes2) = 12; //R0

  mes1();
  mes2();

  while (1)
  {

    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

void printValue(uint16_t val)
{
	char buf[30];
	uint16_t len = sprintf(buf, "Value: %d\n\r", val);
	UART_WriteStr(USART2, buf);
}

void alarmMes(uint16_t val)
{
	char buf[30];
	uint16_t len = sprintf(buf, "Alarm: %d\n\r", val);
	UART_WriteStr(USART2, buf);
}


void EXTI15_10_IRQHandler()
{

	buttonPressed = 1;

	EXTI->PR.B.PR13 = 1;
}

/* USER CODE BEGIN 4 */
void delay(uint32_t ms){
	uint32_t cur_ticks = GetTicks();

	while(GetTicks() - cur_ticks < ms)
	{

	}

}
/* 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 */

  while (1)
  {
  }
  /* 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,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */