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LightTAM_RFID_Reader/Core/Src/main.c
T
eduard.dlabal 344d0000fa Add DMA and LiquidCrystal I2C support
- Implemented DMA functionality with a new dma.c and dma.h file.
- Added LiquidCrystal I2C driver with liquidcrystal_i2c.c and liquidcrystal_i2c.h files.
- Updated CMakeLists.txt to include dma.c and liquidcrystal_i2c.c in the build process.
- Modified build.ninja and compile_commands.json to reflect the new source files.
- Enhanced the main application to utilize the new DMA and LiquidCrystal I2C features.
2025-05-18 16:27:45 +02:00

410 lines
12 KiB
C

/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "dma.h"
#include "i2c.h"
#include "spi.h"
#include "usart.h"
#include "gpio.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "pn532_stm32f1.h"
#include "liquidcrystal_i2c.h"
#include <stdlib.h>
#include <time.h>
#include <string.h>
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
typedef struct
{
uint8_t state;
char name[32];
char surname[32];
time_t time;
} incomming_data_t;
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
PN532 pn532;
/* 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 */
void sendToServer(uint16_t _uuid);
void parseIncommingPacket(uint8_t *_packet, incomming_data_t *_data);
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
uint8_t buff[255];
uint8_t uid[MIFARE_UID_MAX_LENGTH];
uint8_t key_a[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
uint32_t pn532_error = PN532_ERROR_NONE;
int32_t uid_len = 0;
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
incomming_data_t R_Data;
/* 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_I2C1_Init();
MX_USART1_UART_Init();
MX_USART2_UART_Init();
MX_SPI1_Init();
/* USER CODE BEGIN 2 */
HD44780_Init(2);
HD44780_Clear();
HD44780_SetCursor(0, 0);
HD44780_PrintStr("LightTAM RFID");
HD44780_SetCursor(0, 1);
HD44780_PrintStr("(C) E. Dlabal");
HAL_Delay(2000);
HD44780_Clear();
PN532 pn532;
// PN532_SPI_Init(&pn532);
PN532_I2C_Init(&pn532);
PN532_GetFirmwareVersion(&pn532, buff);
if (PN532_GetFirmwareVersion(&pn532, buff) == PN532_STATUS_OK)
{
printf("Found PN532 with firmware version: %d.%d\r\n", buff[1], buff[2]);
}
else
{
return -1;
}
PN532_SamConfiguration(&pn532);
HD44780_SetCursor(1, 0);
HD44780_PrintStr("Prilozte kartu");
printf("Waiting for RFID/NFC card...\r\n");
HAL_GPIO_WritePin(GREEN_LED_GPIO_Port, GREEN_LED_Pin, GPIO_PIN_SET);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
// Check if a card is available to read
uid_len = PN532_ReadPassiveTarget(&pn532, uid, PN532_MIFARE_ISO14443A, 1000);
if (uid_len == PN532_STATUS_ERROR)
{
printf(".");
}
else
{
HD44780_Clear();
HD44780_SetCursor(0, 0);
HD44780_PrintStr("Prosim,ponechte");
HD44780_SetCursor(0, 1);
HD44780_PrintStr("kartu prilozenou");
HAL_GPIO_WritePin(GREEN_LED_GPIO_Port, GREEN_LED_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(ORANGE_LED_GPIO_Port, ORANGE_LED_Pin, GPIO_PIN_SET);
printf("Found card with UID: ");
for (uint8_t i = 0; i < uid_len; i++)
{
printf("%02x ", uid[i]);
}
printf("\r\n");
while (1)
{
printf(" Auth block 6..\r\n");
pn532_error = PN532_MifareClassicAuthenticateBlock(&pn532, uid, uid_len, 6, MIFARE_CMD_AUTH_A, key_a);
for (uint8_t i = 0; i < 16; i++)
{
buff[i] = 0x00;
}
pn532_error = PN532_MifareClassicReadBlock(&pn532, buff, 6);
printf("Data read back: ");
for (uint8_t i = 0; i < 16; i++)
{
printf("%02x ", buff[i]);
}
printf("\r\n");
uint32_t value_le = (buff[3] << 24) | (buff[2] << 16) | (buff[1] << 8) | buff[0];
printf("UUID: %lu\r\n", value_le);
sendToServer(value_le);
uint8_t r_packet[76];
HAL_UART_Receive(&huart2, r_packet, 76, HAL_MAX_DELAY);
parseIncommingPacket(r_packet, &R_Data);
HD44780_Clear();
HAL_GPIO_WritePin(ORANGE_LED_GPIO_Port, ORANGE_LED_Pin, GPIO_PIN_RESET);
if (R_Data.state == 1)
{
HAL_GPIO_WritePin(GREEN_LED_GPIO_Port, GREEN_LED_Pin, GPIO_PIN_SET);
HD44780_SetCursor(1, 0);
HD44780_PrintStr("Prichod OK");
HD44780_SetCursor(0, 1);
char name[15];
sprintf(name, "%10s,%1s.", R_Data.surname, R_Data.name);
HD44780_PrintStr(name);
}
else if (R_Data.state == 2)
{
HAL_GPIO_WritePin(GREEN_LED_GPIO_Port, GREEN_LED_Pin, GPIO_PIN_SET);
HD44780_SetCursor(1, 0);
HD44780_PrintStr("Odchod OK");
HD44780_SetCursor(0, 1);
char name[15];
sprintf(name, "%10s,%1s.", R_Data.surname, R_Data.name);
HD44780_PrintStr(name);
}
else if (R_Data.state == 0)
{
HAL_GPIO_WritePin(RED_LED_GPIO_Port, RED_LED_Pin, GPIO_PIN_SET);
HD44780_SetCursor(1, 0);
HD44780_PrintStr("Chyba");
HD44780_SetCursor(0, 1);
HD44780_PrintStr("Zkuste to znovu");
}
while (PN532_ReadPassiveTarget(&pn532, uid, PN532_MIFARE_ISO14443A, 100) != PN532_STATUS_ERROR)
{
HAL_Delay(100);
}
HAL_GPIO_WritePin(RED_LED_GPIO_Port, RED_LED_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GREEN_LED_GPIO_Port, GREEN_LED_Pin, GPIO_PIN_SET);
printf("Card removed. Waiting for next card...\r\n");
HD44780_Clear();
HD44780_SetCursor(1, 0);
HD44780_PrintStr("Prilozte kartu");
if (pn532_error)
{
printf("Error: 0x%02x\r\n", pn532_error);
}
break;
}
}
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** 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_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
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_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
void sendToServer(uint16_t _uuid)
{
uint8_t packet[6];
uint8_t crc;
int write_offset = 0;
packet[0] = 0xFF;
packet[1] = 0x55;
write_offset = write_offset + 2;
memcpy(packet + write_offset, &_uuid, sizeof(uint16_t));
write_offset = write_offset + sizeof(uint16_t);
packet[4] = 0x00;
write_offset++; // empty byte for future functions
for (int i = 0; i < write_offset; i++)
{
crc ^= packet[i];
}
packet[5] = crc;
HAL_UART_Transmit(&huart2, packet, 6, HAL_MAX_DELAY);
return;
}
void parseIncommingPacket(uint8_t *_packet, incomming_data_t *_data)
{
if (_packet[0] != 0xFF || _packet[1] != 0x55)
{
printf("Invalid packet header\r\n");
return;
}
uint8_t state = _packet[2];
char name[32] = {0};
char surname[32] = {0};
time_t time = 0;
uint8_t crc = 0;
memcpy(name, _packet + 3, 31);
name[31] = '\0';
memcpy(surname, _packet + 35, 31);
surname[31] = '\0';
memcpy(&time, _packet + 67, sizeof(time_t));
for (int i = 0; i < 67 + sizeof(time_t); i++)
{
crc ^= _packet[i];
}
if (crc != _packet[67 + sizeof(time_t)])
{
printf("CRC error\r\n");
return;
}
strcpy(_data->name, name);
strcpy(_data->surname, surname);
_data->state = state;
_data->time = time;
return;
}
#ifdef __GNUC__
/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
/**
* @brief Retargets the C library printf function to the USART.
* @param None
* @retval None
*/
PUTCHAR_PROTOTYPE
{
/* Place your implementation of fputc here */
/* e.g. write a character to the EVAL_COM1 and Loop until the end of transmission */
HAL_UART_Transmit(&huart1, (uint8_t *)&ch, 1, 0xFFFF);
return ch;
}
/* 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 */
/* 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,
tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */