/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 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"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

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

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

/* USER CODE END PD */

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

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
SPI_HandleTypeDef hspi1;

USART_HandleTypeDef husart1;

/* USER CODE BEGIN PV */

SPI_HandleTypeDef hspi1;

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI1_Init(void);
static void MX_USART1_Init(void);
/* USER CODE BEGIN PFP */
static void MX_GPIO_Init(void);
static void MX_SPI1_Init(void);
static void Wake_Up(void);
static void Check_Ready(void);
static void Get_Cell_Data(uint8_t cell_data[32]);
static void Auto_address(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 */




//	uint8_t singleread[] = {0x80, 0x01,0x03, 0x43,0x00, 0x73, 0xA9};	Should read the stack device ID of the 0x01 device
//	uint8_t read[] = {0x80, 0x01, 0x05, 0x00, 0x01, 0x98, 0x1B};		Should read the manufacturers device ID of the 0x01 device

	//Dummy Read OTP_ECC_DATAIN1-OTP_ECC_DATAIN8 to sync DL
	uint8_t message16[] = {0xA0, 0x03, 0x43, 0x00, 0xE3, 0x14};
	uint8_t message17[] = {0xA0, 0x03, 0x44, 0x00, 0xE1, 0x24};
	uint8_t message18[] = {0xA0, 0x03, 0x45, 0x00, 0xE0, 0xB4};
	uint8_t message19[] = {0xA0, 0x03, 0x46, 0x00, 0xE0, 0x44};
	uint8_t message20[] = {0xA0, 0x03, 0x47, 0x00, 0xE1, 0xD4};
	uint8_t message21[] = {0xA0, 0x03, 0x48, 0x00, 0xE4, 0x24};
	uint8_t message22[] = {0xA0, 0x03, 0x49, 0x00, 0xE5, 0xB4};
	uint8_t message23[] = {0xA0, 0x03, 0x4A, 0x00, 0xE5, 0x44};



	uint8_t readdata[127] = {0};
	uint8_t recieve[127] = {0xA0, 0x03, 0x43, 0x00, 0xE3, 0x14};
	uint8_t getdata[5] = {0};


	uint8_t rx_data[13] = {0};
	uint8_t rx_data2[13] = {0};
	uint8_t cell_data[32] = {0};

	uint8_t clear = 0x00;


  /* 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();
  Wake_Up();
  MX_SPI1_Init();
  /* USER CODE BEGIN 2 */


  /* USER CODE END 2 */

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

    /* USER CODE BEGIN 3 */
	  uint8_t wakeup[] = {0x90, 0x00, 0x03, 0x09, 0x20, 0x13, 0x95};
	  	uint8_t rx_data[128] = {0};
	  	uint8_t rx_data2[128] = {0};
	  	uint8_t rx_data3[128] = {0};

	  	//Variables to Dummy Write OTP_ECC_DATAIN1-OTP_ECC_DATAIN8 to sync DLL
	  		uint8_t message1[] = {0xB0, 0x03, 0x43, 0x00, 0xE7, 0xD4};
	  		uint8_t message2[] = {0xB0, 0x03, 0x44, 0x00, 0xE5, 0xE4};
	  		uint8_t message3[] = {0xB0, 0x03, 0x45, 0x00, 0xE4, 0x74};
	  		uint8_t message4[] = {0xB0, 0x03, 0x46, 0x00, 0xE4, 0x84};
	  		uint8_t message5[] = {0xB0, 0x03, 0x47, 0x00, 0xE5, 0x14};
	  		uint8_t message6[] = {0xB0, 0x03, 0x48, 0x00, 0xE0, 0xE4};
	  		uint8_t message7[] = {0xB0, 0x03, 0x49, 0x00, 0xE1, 0x74};
	  		uint8_t message8[] = {0xB0, 0x03, 0x4A, 0x00, 0xE1, 0x84};

	  		//Variables to Enable Auto-addressing Mode
	  		uint8_t message9[] = {0xD0, 0x03, 0x09, 0x01, 0x0F, 0x74};  // Enable auto addressing
	  		uint8_t message10[] = {0xD0, 0x03, 0x06, 0x00, 0xCB, 0x44}; // Set Bridge device address ID
	  		uint8_t message11[] = {0xD0, 0x03, 0x06, 0x01, 0x0A, 0x84}; // Set Stack 1 device ID
	  		uint8_t message14[] = {0xD0, 0x03, 0x08, 0x02, 0x4E, 0xE5}; // Set all stacked devices as stack

	  		//Variable to Set Stack 1 as both stack and top of stack
	  		uint8_t message15[] = {0x90, 0x01, 0x03,  0x08, 0x03, 0x52, 0x20};

	  		uint8_t geterror[] = {0x80, 0x00, 0x21, 0x04, 0x04, 0x76, 0xD7};



	  		//Send Wake-up Message
	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);					// Drive CS
	  		Check_Ready();														// Check SPI Ready
	  		HAL_SPI_TransmitReceive(&hspi1, wakeup, rx_data, sizeof(wakeup), HAL_MAX_DELAY);	// Send
	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);					// Reset CS
	  		HAL_Delay(10);														// Delay

	  		// Proceed to Dummy Writing / Reading
	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		Check_Ready();
	  		HAL_SPI_TransmitReceive(&hspi1, message1, rx_data, sizeof(message1), HAL_MAX_DELAY);
	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		HAL_Delay(1);

	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		Check_Ready();
	  		HAL_SPI_TransmitReceive(&hspi1, message2, rx_data, sizeof(message2), HAL_MAX_DELAY);
	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		HAL_Delay(1);

	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		Check_Ready();
	  		HAL_SPI_TransmitReceive(&hspi1, message3, rx_data, sizeof(message3), HAL_MAX_DELAY);
	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		HAL_Delay(1);

	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		Check_Ready();
	  		HAL_SPI_TransmitReceive(&hspi1, message4, rx_data, sizeof(message4), HAL_MAX_DELAY);
	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		HAL_Delay(1);

	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		Check_Ready();
	  		HAL_SPI_TransmitReceive(&hspi1, message5, rx_data, sizeof(message5), HAL_MAX_DELAY);
	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		HAL_Delay(1);

	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		Check_Ready();
	  		HAL_SPI_TransmitReceive(&hspi1, message6, rx_data, sizeof(message6), HAL_MAX_DELAY);
	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		HAL_Delay(1);

	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		Check_Ready();
	  		HAL_SPI_TransmitReceive(&hspi1, message7, rx_data, sizeof(message7), HAL_MAX_DELAY);
	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		HAL_Delay(1);

	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		Check_Ready();
	  		HAL_SPI_TransmitReceive(&hspi1, message8, rx_data, sizeof(message8), HAL_MAX_DELAY);
	  		HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		HAL_Delay(1);



	  		  // ENABLE AUTO ADDRESSING

	  		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		  Check_Ready();
	  		  HAL_SPI_TransmitReceive(&hspi1, message9, rx_data, sizeof(message9), HAL_MAX_DELAY);
	  		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		  HAL_Delay(1);

	  		  // SET BRIDGE DEVICE

	  		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		  Check_Ready();
	  		  HAL_SPI_TransmitReceive(&hspi1, message10, rx_data, sizeof(message10), HAL_MAX_DELAY);
	  		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		  HAL_Delay(1);

	  		  // SET STACK 1 DEVICE

	  		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		  Check_Ready();
	  		  HAL_SPI_TransmitReceive(&hspi1, message11, rx_data, sizeof(message11), HAL_MAX_DELAY);
	  		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		  HAL_Delay(1);

	  		  // SET ALL AS STACK DEVICES

	  		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		  Check_Ready();
	  		  HAL_SPI_TransmitReceive(&hspi1, message14, rx_data, sizeof(message14), HAL_MAX_DELAY);
	  		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		  HAL_Delay(1);

	  		  // SET STACK 1 AS TOP OF STACK

	  		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  		  Check_Ready();
	  		  HAL_SPI_TransmitReceive(&hspi1, message15, rx_data, sizeof(message15), HAL_MAX_DELAY);
	  		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  		  HAL_Delay(1);

	  while(1){

		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
		  Check_Ready();
		  HAL_SPI_TransmitReceive(&hspi1, geterror, rx_data, sizeof(geterror), HAL_MAX_DELAY);
		  Check_Ready();
		  HAL_Delay(10);

		  HAL_SPI_TransmitReceive(&hspi1, rx_data2, rx_data2, sizeof(rx_data2), HAL_MAX_DELAY);
		  HAL_Delay(10);
		  Check_Ready();
		  HAL_SPI_TransmitReceive(&hspi1, rx_data3, rx_data3, sizeof(rx_data3), HAL_MAX_DELAY);
		  HAL_Delay(10);
		  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);

	  }
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48;
  RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != 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_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI48;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV8;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
  {
    Error_Handler();
  }
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
  PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK1;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  {
    Error_Handler();
  }
}

/**
  * @brief SPI1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_SPI1_Init(void)
{

  /* USER CODE BEGIN SPI1_Init 0 */

  /* USER CODE END SPI1_Init 0 */

  /* USER CODE BEGIN SPI1_Init 1 */

  /* USER CODE END SPI1_Init 1 */
  /* SPI1 parameter configuration*/
  hspi1.Instance = SPI1;
  hspi1.Init.Mode = SPI_MODE_MASTER;
  hspi1.Init.Direction = SPI_DIRECTION_2LINES;
  hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
  hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
  hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
  hspi1.Init.NSS = SPI_NSS_SOFT;
  hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
  hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
  hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
  hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
  hspi1.Init.CRCPolynomial = 7;
  hspi1.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE;
  hspi1.Init.NSSPMode = SPI_NSS_PULSE_DISABLE;
  if (HAL_SPI_Init(&hspi1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN SPI1_Init 2 */

  /* USER CODE END SPI1_Init 2 */

}

/**
  * @brief USART1 Initialization Function
  * @param None
  * @retval None
  */

static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOA_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);

  /*Configure GPIO pin : PA3 */
  GPIO_InitStruct.Pin = GPIO_PIN_3;
  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /*Configure GPIO pin : PA4 */
  GPIO_InitStruct.Pin = GPIO_PIN_4;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}

/* USER CODE BEGIN 4 */



void Wake_Up(void)
{
	GPIO_InitTypeDef GPIO_InitStruct = {0};

	/*Configure GPIO pin Output Level */
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_7, GPIO_PIN_RESET);

	  /*Configure GPIO pin : PA8 */
	  GPIO_InitStruct.Pin = GPIO_PIN_7;
	  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
	  GPIO_InitStruct.Pull = GPIO_NOPULL;
	  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
	  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

	uint16_t x = 1;

	// Set Pins
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_7, GPIO_PIN_SET);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	HAL_Delay(5);

	// Start Tone
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_7, GPIO_PIN_RESET);
	HAL_Delay(1);


	while(x<250){											// This is our super washed way we're timing the loops so we can get that uS delay.
		x = x+1;
	}

	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_7, GPIO_PIN_SET);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	HAL_Delay(15);
	// End Tone



}

void Check_Ready(void)
{
	uint8_t ready = 23;

	while (ready != 1){
	ready = HAL_GPIO_ReadPin (GPIOA, GPIO_PIN_3);
	}

}

void Get_Cell_Data(uint8_t cell_data[32])
{

	uint8_t set16cells[] = {0xB0, 0x00, 0x03, 0x0A, 0xA6, 0x13};
	uint8_t setadc[] = {0xB0, 0x03, 0x0D, 0x06, 0x52, 0x76};
	uint8_t readadc1[] = {0xA0, 0x05, 0x68, 0x1F, 0x5C, 0x2D};
	uint8_t readdata[32] = {0};


	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);					// Drive CS
	  Check_Ready();														// Check SPI Ready
	  HAL_SPI_Transmit(&hspi1, set16cells, sizeof(set16cells), HAL_MAX_DELAY);
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);					// Reset CS
	  HAL_Delay(10);

	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);					// Drive CS
	  Check_Ready();
	  HAL_SPI_Transmit(&hspi1, setadc, sizeof(setadc), HAL_MAX_DELAY);
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);					// Reset CS
	  HAL_Delay(10);

	  Check_Ready();
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  HAL_SPI_TransmitReceive(&hspi1, readadc1, cell_data, sizeof(readadc1), HAL_MAX_DELAY);	// Send
	  Check_Ready();
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  HAL_SPI_Receive(&hspi1, readdata, sizeof(readdata), HAL_MAX_DELAY);
	  HAL_SPI_TransmitReceive(&hspi1, readadc1, cell_data, 32, HAL_MAX_DELAY);
	  HAL_Delay(1);
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);					// Reset CS
	  HAL_Delay(10);

}
void Auto_address(void)
{

	uint8_t wakeup[] = {0x90, 0x00, 0x03, 0x09, 0x20, 0x13, 0x95};
	uint8_t rx_data[13] = {0};

	//Variables to Dummy Write OTP_ECC_DATAIN1-OTP_ECC_DATAIN8 to sync DLL
	uint8_t message1[] = {0xB0, 0x03, 0x43, 0x00, 0xE7, 0xD4};
	uint8_t message2[] = {0xB0, 0x03, 0x44, 0x00, 0xE5, 0xE4};
	uint8_t message3[] = {0xB0, 0x03, 0x45, 0x00, 0xE4, 0x74};
	uint8_t message4[] = {0xB0, 0x03, 0x46, 0x00, 0xE4, 0x84};
	uint8_t message5[] = {0xB0, 0x03, 0x47, 0x00, 0xE5, 0x14};
	uint8_t message6[] = {0xB0, 0x03, 0x48, 0x00, 0xE0, 0xE4};
	uint8_t message7[] = {0xB0, 0x03, 0x49, 0x00, 0xE1, 0x74};
	uint8_t message8[] = {0xB0, 0x03, 0x4A, 0x00, 0xE1, 0x84};

	//Variables to Enable Auto-addressing Mode
	uint8_t message9[] = {0xD0, 0x03, 0x09, 0x01, 0x0F, 0x74};  // Enable auto addressing
	uint8_t message10[] = {0xD0, 0x03, 0x06, 0x00, 0xCB, 0x44}; // Set Bridge device address ID
	uint8_t message11[] = {0xD0, 0x03, 0x06, 0x01, 0x0A, 0x84}; // Set Stack 1 device ID
	uint8_t message14[] = {0xD0, 0x03, 0x08, 0x02, 0x4E, 0xE5}; // Set all stacked devices as stack

	//Variable to Set Stack 1 as both stack and top of stack
	uint8_t message15[] = {0x90, 0x01, 0x03,  0x08, 0x03, 0x52, 0x20};



	//Send Wake-up Message
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);					// Drive CS
	Check_Ready();														// Check SPI Ready
	HAL_SPI_TransmitReceive(&hspi1, wakeup, rx_data, sizeof(wakeup), HAL_MAX_DELAY);	// Send
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);					// Reset CS
	HAL_Delay(10);														// Delay

	// Proceed to Dummy Writing / Reading
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	Check_Ready();
	HAL_SPI_TransmitReceive(&hspi1, message1, rx_data, sizeof(message1), HAL_MAX_DELAY);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	HAL_Delay(1);

	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	Check_Ready();
	HAL_SPI_TransmitReceive(&hspi1, message2, rx_data, sizeof(message2), HAL_MAX_DELAY);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	HAL_Delay(1);

	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	Check_Ready();
	HAL_SPI_TransmitReceive(&hspi1, message3, rx_data, sizeof(message3), HAL_MAX_DELAY);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	HAL_Delay(1);

	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	Check_Ready();
	HAL_SPI_TransmitReceive(&hspi1, message4, rx_data, sizeof(message4), HAL_MAX_DELAY);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	HAL_Delay(1);

	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	Check_Ready();
	HAL_SPI_TransmitReceive(&hspi1, message5, rx_data, sizeof(message5), HAL_MAX_DELAY);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	HAL_Delay(1);

	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	Check_Ready();
	HAL_SPI_TransmitReceive(&hspi1, message6, rx_data, sizeof(message6), HAL_MAX_DELAY);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	HAL_Delay(1);

	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	Check_Ready();
	HAL_SPI_TransmitReceive(&hspi1, message7, rx_data, sizeof(message7), HAL_MAX_DELAY);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	HAL_Delay(1);

	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	Check_Ready();
	HAL_SPI_TransmitReceive(&hspi1, message8, rx_data, sizeof(message8), HAL_MAX_DELAY);
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	HAL_Delay(1);



	  // ENABLE AUTO ADDRESSING

	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  Check_Ready();
	  HAL_SPI_TransmitReceive(&hspi1, message9, rx_data, sizeof(message9), HAL_MAX_DELAY);
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  HAL_Delay(1);

	  // SET BRIDGE DEVICE

	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  Check_Ready();
	  HAL_SPI_TransmitReceive(&hspi1, message10, rx_data, sizeof(message10), HAL_MAX_DELAY);
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  HAL_Delay(1);

	  // SET STACK 1 DEVICE

	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  Check_Ready();
	  HAL_SPI_TransmitReceive(&hspi1, message11, rx_data, sizeof(message11), HAL_MAX_DELAY);
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  HAL_Delay(1);

	  // SET ALL AS STACK DEVICES

	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  Check_Ready();
	  HAL_SPI_TransmitReceive(&hspi1, message14, rx_data, sizeof(message14), HAL_MAX_DELAY);
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  HAL_Delay(1);

	  // SET STACK 1 AS TOP OF STACK

	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
	  Check_Ready();
	  HAL_SPI_TransmitReceive(&hspi1, message15, rx_data, sizeof(message15), HAL_MAX_DELAY);
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
	  HAL_Delay(1);


}
/* 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 */