/ USER CODE BEGIN Header / /**

---

• @file : main.c
• @brief : Main program body

---

• @attention
• Copyright (c) 2021 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 "app_nfc7.h"

include "lib_NDEF.h"

include "TAGTYPE5_WRAPPER.h"

include "lib_NDEF_Text.h"

include <stdio.h>

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

define ST25DV_MAX_SIZE 4096 // 4KB

/ 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 ---------------------------------------------------------/

/ USER CODE BEGIN PV /

/ USER CODE END PV /

/ Private function prototypes -----------------------------------------------/ void SystemClock_Config(void); static void MX_GPIO_Init(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_NFC7_Init(); / USER CODE BEGIN 2 /

/ Init ST25DV driver / while( NFC07A1_NFCTAG_Init(0) != NFCTAG_OK ); / Reset Mailbox enable to allow write to EEPROM / NFC07A1_NFCTAG_ResetMBEN_Dyn(0);

NfcTag_SelectProtocol(NFCTAG_TYPE5); / Check NDEF presence, if no init mem in Tag Type 5 / if( NfcType5_NDEFDetection( ) != NDEF_OK ) { / If CCFile is not present add it to memory /

CCFileStruct.MagicNumber = NFCT5_MAGICNUMBER_E1_CCFILE;
CCFileStruct.Version = NFCT5_VERSION_V1_0;
CCFileStruct.MemorySize = (ST25DV_MAX_SIZE / 16) & 0xFF; // ST25DV_MAX_SIZE = 0x200 => 4Kb memory
CCFileStruct.TT5Tag = 0x01;
/* Init of the Type Tag 5 component */
while( NfcType5_TT5Init( ) != NFCTAG_OK );

}

/ write text message to EEPROM / while( NDEF_WriteText( "NDEF Text message" ) != NDEF_OK ); NDEF_Text_info_t Text; sRecordInfo_t record; uint8_t p_ndef_buffer[64];

/ read NDEF file / NDEF_ReadNDEF(p_ndef_buffer);

/ Extract record info / NDEF_IdentifyBuffer(&record,p_ndef_buffer); / Read Text in record / NDEF_ReadText( &record, &Text ); / USER CODE END 2 /

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

/ USER CODE END WHILE / MX_NFC7_Process(); / 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 / if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK) { Error_Handler(); } /** Initializes the RCC Oscillators according to the specified parameters

• in the RCC_OscInitTypeDef structure. */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI; RCC_OscInitStruct.PLL.PLLM = 1; RCC_OscInitStruct.PLL.PLLN = 10; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7; RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2; RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2; 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_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; 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_4) != HAL_OK) { Error_Handler(); } }

/**

• @brief GPIO Initialization Function
• @param None
• @retval None */ static void MX_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStruct = {0};

/ GPIO Ports Clock Enable / HAL_RCC_GPIOC_CLK_ENABLE(); HAL_RCC_GPIOH_CLK_ENABLE(); HAL_RCC_GPIOA_CLK_ENABLE(); HAL_RCC_GPIOB_CLK_ENABLE();

/Configure GPIO pin Output Level / HAL_GPIO_WritePin(GPIOA, LD2_Pin|GPIO_PIN_10, GPIO_PIN_RESET);

/Configure GPIO pin Output Level / HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4|GPIO_PIN_5, GPIO_PIN_RESET);

/Configure GPIO pin : B1_Pin / GPIO_InitStruct.Pin = B1_Pin; GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);

/Configure GPIO pins : USART_TX_Pin USART_RX_Pin / GPIO_InitStruct.Pin = USART_TX_Pin|USART_RX_Pin; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF7_USART2; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

/Configure GPIO pins : LD2_Pin PA10 / GPIO_InitStruct.Pin = LD2_Pin|GPIO_PIN_10; 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);

/Configure GPIO pin : PA6 / GPIO_InitStruct.Pin = GPIO_PIN_6; GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

/Configure GPIO pins : PB4 PB5 / GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

/ EXTI interrupt init/ HAL_NVIC_SetPriority(EXTI9_5_IRQn, 0, 0); HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);

}

/ 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 /