/* USER CODE BEGIN Header */
/**
 ******************************************************************************
 * @file           : main.c
 * @brief          : Main program body
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2023 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 ------------------------------------------------------------------*/
#include "main.h"
#include "dma.h"
#include "eth.h"
#include "i2c.h"
#include "spi.h"
#include "tim.h"
#include "usart.h"
#include "usb_otg.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
#include <stdlib.h>

#include "lcd_i2c.h"
#include "hx710b.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
#define OLED_UPDATE_PERIOD 1000

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

extern uint8_t RxData[8];
float measured_preassure_raw;
extern uint8_t sensor_read_flag;

float pressure_hx710b_cmh2o;

uint8_t UartMessage[256];
uint16_t MessageLength;

char lcd_line[32];
uint32_t SoftTimerLCD;
uint8_t toggle_display;

struct lcd_disp disp;
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* 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 */
	MX_GPIO_Init();
	MX_DMA_Init();
	MX_USART3_UART_Init();
	MX_USB_OTG_FS_PCD_Init();
	MX_SPI1_Init();
	MX_ETH_Init();
	MX_I2C1_Init();
	MX_TIM3_Init();
	/* USER CODE BEGIN 2 */

	disp.addr = (0x27 << 1);
	disp.bl = true;
	lcd_init(&disp);
	lcd_prog(&disp);

	SoftTimerLCD = HAL_GetTick();

	Hx710b_Read_Raw_DMA();
	/* USER CODE END 2 */

	/* Infinite loop */
	/* USER CODE BEGIN WHILE */
	while (1)
	{

		if (((HAL_GetTick() - SoftTimerLCD) > OLED_UPDATE_PERIOD)
				&& (sensor_read_flag == 1))
		{
			SoftTimerLCD = HAL_GetTick();

			MessageLength =
					sprintf((char*) UartMessage,
							"HX710B raw reading: 0b %c%c%c%c%c%c%c%c %c%c%c%c%c%c%c%c %c%c%c%c%c%c%c%c %c%c%c%c%c%c%c%c %c%c%c%c%c%c%c%c %c%c%c%c%c%c%c%c %c%c%c%c%c%c%c%c %c%c%c%c%c%c%c%c \r\n",
							BYTE_TO_BINARY(RxData[0]),
							BYTE_TO_BINARY(RxData[1]),
							BYTE_TO_BINARY(RxData[2]),
							BYTE_TO_BINARY(RxData[3]),
							BYTE_TO_BINARY(RxData[4]),
							BYTE_TO_BINARY(RxData[5]),
							BYTE_TO_BINARY(RxData[6]), BYTE_TO_BINARY(RxData[7])
							);

			HAL_UART_Transmit(&huart3, UartMessage, MessageLength, 100);
			measured_preassure_raw = ConvertRawReadingToSignedFloat(
					ConvertSPItoRawReading((uint8_t*) (&RxData)));
			pressure_hx710b_cmh2o = mapFloatToCmH2O(measured_preassure_raw);

			MessageLength = sprintf((char*) UartMessage,
					"%.2f from sensor \r\n", measured_preassure_raw);
			HAL_UART_Transmit(&huart3, UartMessage, MessageLength, 100);

			if (0 == toggle_display)
			{
				sprintf((char*) disp.f_line, "HX710B (via DMA)");
				sprintf((char*) disp.s_line, "  %.1f cmH2O",
						pressure_hx710b_cmh2o);
				lcd_display(&disp);
				toggle_display = 1;
			}
			else
			{
				sprintf((char*) disp.f_line, "HX710B (via DMA)");
				sprintf((char*) disp.s_line, "   %.2f kPa",
						convertcmH2OtokPa(pressure_hx710b_cmh2o));
				lcd_display(&disp);
				toggle_display = 0;
			}

		}

		if ((sensor_read_flag == 1)
				&& (HAL_GPIO_ReadPin(SPI1_MISO_GPIO_Port, SPI1_MISO_Pin)
						== GPIO_PIN_RESET))
		{
			sensor_read_flag = 0;
			Hx710b_Read_Raw_DMA();
		}
		/* 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 LSE Drive Capability
	 */
	HAL_PWR_EnableBkUpAccess();

	/** Configure the main internal regulator output voltage
	 */
	__HAL_RCC_PWR_CLK_ENABLE();
	__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);

	/** Initializes the RCC Oscillators according to the specified parameters
	 * in the RCC_OscInitTypeDef structure.
	 */
	RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
	RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
	RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
	RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
	RCC_OscInitStruct.PLL.PLLM = 4;
	RCC_OscInitStruct.PLL.PLLN = 96;
	RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
	RCC_OscInitStruct.PLL.PLLQ = 4;
	RCC_OscInitStruct.PLL.PLLR = 2;
	if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
	{
		Error_Handler();
	}

	/** Activate the Over-Drive mode
	 */
	if (HAL_PWREx_EnableOverDrive() != HAL_OK)
	{
		Error_Handler();
	}

	/** Initializes the CPU, AHB and APB buses clocks
	 */
	RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
			| RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
	RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
	RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
	RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
	RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

	if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK)
	{
		Error_Handler();
	}
}

/* USER CODE BEGIN 4 */

/* 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 */
	__disable_irq();
	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 */
