Refactor code structure for improved readability and maintainability
This commit is contained in:
+129
-45
@@ -1,20 +1,21 @@
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/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file : main.c
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* @brief : Main program body
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2025 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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******************************************************************************
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* @file : main.c
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* @brief : Main program body
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2019 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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@@ -26,7 +27,6 @@
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/* Private includes ----------------------------------------------------------*/
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/* USER CODE BEGIN Includes */
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#include "pn532_stm32f1.h"
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/* USER CODE END Includes */
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/* Private typedef -----------------------------------------------------------*/
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@@ -47,7 +47,7 @@
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/* Private variables ---------------------------------------------------------*/
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/* USER CODE BEGIN PV */
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PN532 pn532;
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/* USER CODE END PV */
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/* Private function prototypes -----------------------------------------------*/
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@@ -62,14 +62,18 @@ void SystemClock_Config(void);
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/* USER CODE END 0 */
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/**
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* @brief The application entry point.
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* @retval int
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*/
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* @brief The application entry point.
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* @retval int
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*/
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int main(void)
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{
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/* USER CODE BEGIN 1 */
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uint8_t buff[255];
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uint8_t uid[MIFARE_UID_MAX_LENGTH];
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uint8_t key_a[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
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uint32_t pn532_error = PN532_ERROR_NONE;
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int32_t uid_len = 0;
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/* USER CODE END 1 */
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/* MCU Configuration--------------------------------------------------------*/
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@@ -94,7 +98,21 @@ int main(void)
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MX_USART1_UART_Init();
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MX_SPI1_Init();
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/* USER CODE BEGIN 2 */
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printf("Hello!\r\n");
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PN532 pn532;
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// PN532_SPI_Init(&pn532);
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PN532_I2C_Init(&pn532);
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PN532_GetFirmwareVersion(&pn532, buff);
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if (PN532_GetFirmwareVersion(&pn532, buff) == PN532_STATUS_OK)
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{
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printf("Found PN532 with firmware version: %d.%d\r\n", buff[1], buff[2]);
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}
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else
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{
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return -1;
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}
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PN532_SamConfiguration(&pn532);
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printf("Waiting for RFID/NFC card...\r\n");
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/* USER CODE END 2 */
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/* Infinite loop */
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@@ -104,22 +122,73 @@ int main(void)
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/* USER CODE END WHILE */
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/* USER CODE BEGIN 3 */
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// Check if a card is available to read
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uid_len = PN532_ReadPassiveTarget(&pn532, uid, PN532_MIFARE_ISO14443A, 1000);
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if (uid_len == PN532_STATUS_ERROR)
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{
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printf(".");
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}
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else
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{
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printf("Found card with UID: ");
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for (uint8_t i = 0; i < uid_len; i++)
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{
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printf("%02x ", uid[i]);
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}
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printf("\r\n");
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while (1)
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{
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printf(" Auth block 6..\r\n");
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pn532_error = PN532_MifareClassicAuthenticateBlock(&pn532, uid, uid_len,
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6, MIFARE_CMD_AUTH_A, key_a);
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for (uint8_t i = 0; i < 16; i++)
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{
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buff[i] = 0x00;
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}
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pn532_error = PN532_MifareClassicReadBlock(&pn532, buff, 6);
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printf("Data read back: ");
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for (uint8_t i = 0; i < 16; i++)
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{
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printf("%02x ", buff[i]);
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}
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printf("\r\n");
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// Převod načtených 4 bajtů z bloku (např. buff[0]..buff[3]) na 32bitové číslo (big-endian)
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uint32_t value = (buff[0] << 24) | (buff[1] << 16) | (buff[2] << 8) | buff[3];
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printf("Cislo z bloku (big-endian): %lu\r\n", value);
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// Pokud je číslo v little-endian (často u Mifare), použij:
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uint32_t value_le = (buff[3] << 24) | (buff[2] << 16) | (buff[1] << 8) | buff[0];
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printf("Cislo z bloku (little-endian): %lu\r\n", value_le);
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while (PN532_ReadPassiveTarget(&pn532, uid, PN532_MIFARE_ISO14443A, 100) != PN532_STATUS_ERROR)
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{
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HAL_Delay(100);
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}
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printf("Card removed. Waiting for next card...\r\n");
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break; // Exit the inner while(1) to wait for a new card
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if (pn532_error)
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{
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printf("Error: 0x%02x\r\n", pn532_error);
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}
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}
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}
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}
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/* USER CODE END 3 */
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}
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/**
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* @brief System Clock Configuration
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* @retval None
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*/
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* @brief System Clock Configuration
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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/** Initializes the RCC Oscillators according to the specified parameters
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* in the RCC_OscInitTypeDef structure.
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*/
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* in the RCC_OscInitTypeDef structure.
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
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@@ -130,9 +199,8 @@ void SystemClock_Config(void)
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}
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/** Initializes the CPU, AHB and APB buses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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@@ -145,37 +213,53 @@ void SystemClock_Config(void)
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}
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/* USER CODE BEGIN 4 */
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#ifdef __GNUC__
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/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
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set to 'Yes') calls __io_putchar() */
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#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
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#else
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#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
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#endif /* __GNUC__ */
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/**
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* @brief Retargets the C library printf function to the USART.
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* @param None
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* @retval None
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*/
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PUTCHAR_PROTOTYPE
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{
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/* Place your implementation of fputc here */
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/* e.g. write a character to the EVAL_COM1 and Loop until the end of transmission */
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HAL_UART_Transmit(&huart1, (uint8_t *)&ch, 1, 0xFFFF);
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return ch;
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}
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/* USER CODE END 4 */
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/**
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* @brief This function is executed in case of error occurrence.
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* @retval None
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*/
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* @brief This function is executed in case of error occurrence.
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* @retval None
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*/
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void Error_Handler(void)
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{
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/* USER CODE BEGIN Error_Handler_Debug */
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/* User can add his own implementation to report the HAL error return state */
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__disable_irq();
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while (1)
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{
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}
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/* USER CODE END Error_Handler_Debug */
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}
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#ifdef USE_FULL_ASSERT
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* USER CODE BEGIN 6 */
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* USER CODE END 6 */
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}
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#endif /* USE_FULL_ASSERT */
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@@ -72,9 +72,9 @@ void HAL_MspInit(void)
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/* System interrupt init*/
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/** DISABLE: JTAG-DP Disabled and SW-DP Disabled
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/** NOJTAG: JTAG-DP Disabled and SW-DP Enabled
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*/
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__HAL_AFIO_REMAP_SWJ_DISABLE();
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__HAL_AFIO_REMAP_SWJ_NOJTAG();
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/* USER CODE BEGIN MspInit 1 */
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+1
-1
@@ -39,7 +39,7 @@ void MX_USART1_UART_Init(void)
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/* USER CODE END USART1_Init 1 */
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huart1.Instance = USART1;
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huart1.Init.BaudRate = 115200;
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huart1.Init.BaudRate = 9600;
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huart1.Init.WordLength = UART_WORDLENGTH_8B;
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huart1.Init.StopBits = UART_STOPBITS_1;
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huart1.Init.Parity = UART_PARITY_NONE;
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