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initial commit: oled, rc522, exti

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This commit is contained in:
Timothy Yin
2025-03-20 02:05:06 +08:00
commit f515d5fa96
106 changed files with 100859 additions and 0 deletions
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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file gpio.c
* @brief This file provides code for the configuration
* of all used GPIO pins.
******************************************************************************
* @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 "gpio.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/*----------------------------------------------------------------------------*/
/* Configure GPIO */
/*----------------------------------------------------------------------------*/
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LED0_GPIO_Port, LED0_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, RC522_CS_Pin|RC522_RST_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LED_BTN1_GPIO_Port, LED_BTN1_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : LED0_Pin */
GPIO_InitStruct.Pin = LED0_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LED0_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : RC522_CS_Pin RC522_RST_Pin */
GPIO_InitStruct.Pin = RC522_CS_Pin|RC522_RST_Pin;
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 : LED_BTN1_Pin */
GPIO_InitStruct.Pin = LED_BTN1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LED_BTN1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : BTN1_Pin */
GPIO_InitStruct.Pin = BTN1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
GPIO_InitStruct.Pull = GPIO_PULLUP;
HAL_GPIO_Init(BTN1_GPIO_Port, &GPIO_InitStruct);
/* EXTI interrupt init*/
HAL_NVIC_SetPriority(EXTI9_5_IRQn, 1, 0);
HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);
}
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file i2c.c
* @brief This file provides code for the configuration
* of the I2C instances.
******************************************************************************
* @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 "i2c.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
I2C_HandleTypeDef hi2c1;
/* I2C1 init function */
void MX_I2C1_Init(void)
{
/* USER CODE BEGIN I2C1_Init 0 */
/* USER CODE END I2C1_Init 0 */
/* USER CODE BEGIN I2C1_Init 1 */
/* USER CODE END I2C1_Init 1 */
hi2c1.Instance = I2C1;
hi2c1.Init.ClockSpeed = 100000;
hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C1_Init 2 */
/* USER CODE END I2C1_Init 2 */
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(i2cHandle->Instance==I2C1)
{
/* USER CODE BEGIN I2C1_MspInit 0 */
/* USER CODE END I2C1_MspInit 0 */
__HAL_RCC_GPIOB_CLK_ENABLE();
/**I2C1 GPIO Configuration
PB6 ------> I2C1_SCL
PB7 ------> I2C1_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* I2C1 clock enable */
__HAL_RCC_I2C1_CLK_ENABLE();
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
}
void HAL_I2C_MspDeInit(I2C_HandleTypeDef* i2cHandle)
{
if(i2cHandle->Instance==I2C1)
{
/* USER CODE BEGIN I2C1_MspDeInit 0 */
/* USER CODE END I2C1_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_I2C1_CLK_DISABLE();
/**I2C1 GPIO Configuration
PB6 ------> I2C1_SCL
PB7 ------> I2C1_SDA
*/
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_6);
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_7);
/* USER CODE BEGIN I2C1_MspDeInit 1 */
/* USER CODE END I2C1_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */

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/* 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"
#include "i2c.h"
#include "spi.h"
#include "usart.h"
#include "gpio.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
#include "oled.h"
#include "rc522.h"
/* 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 */
uint8_t CardType[2] = {0};
uint8_t CardID[4] = {0};
/* 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 format_hex_string(const uint8_t *values, char *buffer) {
const char hex_chars[] = "0123456789ABCDEF";
// 处理第一个字节
buffer[0] = hex_chars[values[0] >> 4];
buffer[1] = hex_chars[values[0] & 0x0F];
buffer[2] = '-';
// 处理第二个字节
buffer[3] = hex_chars[values[1] >> 4];
buffer[4] = hex_chars[values[1] & 0x0F];
buffer[5] = '-';
// 处理第三个字节
buffer[6] = hex_chars[values[2] >> 4];
buffer[7] = hex_chars[values[2] & 0x0F];
buffer[8] = '-';
// 处理第四个字节并终止字符串
buffer[9] = hex_chars[values[3] >> 4];
buffer[10] = hex_chars[values[3] & 0x0F];
buffer[11] = '\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_I2C1_Init();
MX_USART1_UART_Init();
MX_SPI1_Init();
/* USER CODE BEGIN 2 */
MFRC_Init();
PCD_Reset();
OLED_Init();
OLED_Clear();
OLED_ShowString(0,0,"Card scan...",12);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
const char status = PCD_Request(PICC_REQALL, CardType);
if (CardType[0] == 0x04 && CardType[1] == 0x00)
{
OLED_ShowString(0,2,"Type: Classic",13);
}
else if (CardType[0] == 0x44 && CardType[1] == 0x00)
{
OLED_ShowString(0,2,"Type: Ultralight",16);
}
else
{
OLED_ShowString(0,2,"Type: Unknown",13);
}
if (!status) {
PCD_AntiColl(CardID);
OLED_ShowString(0,4,"Card ID:",8);
// show parsed card id with pattern: %x-%x-%x-%x
char buffer[12];
format_hex_string(CardID, buffer);
OLED_ShowString(0,6,buffer,12);
HAL_GPIO_WritePin(LED_BTN1_GPIO_Port, LED_BTN1_Pin, GPIO_PIN_SET);
}
HAL_Delay(200);
/* 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};
/** 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 HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
if(GPIO_Pin == BTN1_Pin)
{
HAL_GPIO_WritePin(LED_BTN1_GPIO_Port, LED_BTN1_Pin, GPIO_PIN_RESET);
CardType[0] = 0;
CardType[1] = 0;
CardID[0] = 0;
CardID[1] = 0;
CardID[2] = 0;
CardID[3] = 0;
OLED_ShowString(0,4, " ",8);
OLED_ShowString(0,6, " ",12);
}
}
/* 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 */

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#include "oled.h"
#include "i2c.h"
#include "oledfont.h" //头文件
uint8_t CMD_Data[] = {
0xAE,
0x00,
0x10,
0x40,
0xB0,
0x81,
0xFF,
0xA1,
0xA6,
0xA8,
0x3F,
0xC8,
0xD3,
0x00,
0xD5,
0x80,
0xD8,
0x05,
0xD9,
0xF1,
0xDA,
0x12,
0xD8,
0x30,
0x8D,
0x14,
0xAF
}; //初始化命令
void WriteCmd(void) {
uint8_t i = 0;
for (i = 0; i < 27; i++) {
HAL_I2C_Mem_Write(&hi2c1, 0x78, 0x00,I2C_MEMADD_SIZE_8BIT, CMD_Data + i, 1, 0x100);
}
}
//向设备写控制命令
void OLED_WR_CMD(uint8_t cmd) {
HAL_I2C_Mem_Write(&hi2c1, 0x78, 0x00,I2C_MEMADD_SIZE_8BIT, &cmd, 1, 0x100);
}
//向设备写数据
void OLED_WR_DATA(uint8_t data) {
HAL_I2C_Mem_Write(&hi2c1, 0x78, 0x40,I2C_MEMADD_SIZE_8BIT, &data, 1, 0x100);
}
//初始化oled屏幕
void OLED_Init(void) {
HAL_Delay(200);
WriteCmd();
}
//清屏
void OLED_Clear(void) {
uint8_t i, n;
for (i = 0; i < 8; i++) {
OLED_WR_CMD(0xb0 + i); //设置页地址（0~7）
OLED_WR_CMD(0x00); //设置显示位置—列低地址
OLED_WR_CMD(0x10); //设置显示位置—列高地址
for (n = 0; n < 128; n++)
OLED_WR_DATA(0); //更新显示
}
}
//开启OLED显示
void OLED_Display_On(void) {
OLED_WR_CMD(0X8D); //SET DCDC命令
OLED_WR_CMD(0X14); //DCDC ON
OLED_WR_CMD(0XAF); //DISPLAY ON
}
//关闭OLED显示
void OLED_Display_Off(void) {
OLED_WR_CMD(0X8D); //SET DCDC命令
OLED_WR_CMD(0X10); //DCDC OFF
OLED_WR_CMD(0XAE); //DISPLAY OFF
}
//坐标设置
void OLED_Set_Pos(uint8_t x, uint8_t y) {
OLED_WR_CMD(0xb0 + y);
OLED_WR_CMD(((x & 0xf0) >> 4) | 0x10);
OLED_WR_CMD(x & 0x0f);
}
void OLED_On(void) {
uint8_t i, n;
for (i = 0; i < 8; i++) {
OLED_WR_CMD(0xb0 + i); //设置页地址（0~7）
OLED_WR_CMD(0x00); //设置显示位置—列低地址
OLED_WR_CMD(0x10); //设置显示位置—列高地址
for (n = 0; n < 128; n++)
OLED_WR_DATA(1);
} //更新显示
}
unsigned int oled_pow(uint8_t m, uint8_t n) {
unsigned int result = 1;
while (n--)result *= m;
return result;
}
//显示2个数字
//x,y :起点坐标
//len :数字的位数
//size:字体大小
//mode:模式 0,填充模式;1,叠加模式
//num:数值(0~4294967295);
void OLED_ShowNum(uint8_t x, uint8_t y, unsigned int num, uint8_t len, uint8_t size2) {
uint8_t t, temp;
uint8_t enshow = 0;
for (t = 0; t < len; t++) {
temp = (num / oled_pow(10, len - t - 1)) % 10;
if (enshow == 0 && t < (len - 1)) {
if (temp == 0) {
OLED_ShowChar(x + (size2 / 2) * t, y, ' ', size2);
continue;
} else enshow = 1;
}
OLED_ShowChar(x + (size2 / 2) * t, y, temp + '0', size2);
}
}
//在指定位置显示一个字符,包括部分字符
//x:0~127
//y:0~63
//mode:0,反白显示;1,正常显示
//size:选择字体 16/12
void OLED_ShowChar(uint8_t x, uint8_t y, uint8_t chr, uint8_t Char_Size) {
unsigned char c = 0, i = 0;
c = chr - ' '; //得到偏移后的值
if (x > 128 - 1) {
x = 0;
y = y + 2;
}
if (Char_Size == 16) {
OLED_Set_Pos(x, y);
for (i = 0; i < 8; i++)
OLED_WR_DATA(F8X16[c * 16 + i]);
OLED_Set_Pos(x, y + 1);
for (i = 0; i < 8; i++)
OLED_WR_DATA(F8X16[c * 16 + i + 8]);
} else {
OLED_Set_Pos(x, y);
for (i = 0; i < 6; i++)
OLED_WR_DATA(F6x8[c][i]);
}
}
//显示一个字符号串
void OLED_ShowString(uint8_t x, uint8_t y, uint8_t *chr, uint8_t Char_Size) {
unsigned char j = 0;
while (chr[j] != '\0') {
OLED_ShowChar(x, y, chr[j], Char_Size); //一次显示一个字符
x += 8;
if (x > 120) {
x = 0;
y += 2;
}
j++;
}
}
//显示汉字
//hzk 用取模软件得出的数组
void OLED_ShowChinese(uint8_t x, uint8_t y, uint8_t no) {
uint8_t t, adder = 0;
//定位（0xbx,x为第几行。0x1x ,x为列地址 高四位；0x0x，x为列地址第4位。
//比如你想定 位到第3行，第126(0x7e)列，就要写WrCmd(0xb3);WrCmd(0x17);WrCmd(0x0e);）
OLED_Set_Pos(x, y);
for (t = 0; t < 16; t++) {
OLED_WR_DATA(Hzk[2 * no][t]);
adder += 1;
}
OLED_Set_Pos(x, y + 1);
for (t = 0; t < 16; t++) {
OLED_WR_DATA(Hzk[2 * no + 1][t]);
adder += 1;
}
}

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#include "stm32f1xx_hal.h"
#include "rc522.h"
#include "stdio.h"
#include "usart.h"
#include <string.h>
extern SPI_HandleTypeDef hspi1;
/**************************************************************************************
* 函数名称：MFRC_Init
* 功能描述：MFRC初始化
* 入口参数：无
* 出口参数：无
* 返 回 值：无
* 说 明：MFRC的SPI接口速率为0~10Mbps
***************************************************************************************/
void MFRC_Init(void)
{
RS522_NSS(1);
RS522_RST(1);
}
/**************************************************************************************
* 函数名称: SPI_RW_Byte
* 功能描述: 模拟SPI读写一个字节
* 入口参数: -byte:要发送的数据
* 出口参数: -byte:接收到的数据
***************************************************************************************/
static uint8_t ret; //这些函数是HAL与标准库不同的地方【读写函数】
uint8_t SPI1_RW_Byte(uint8_t byte)
{
HAL_SPI_TransmitReceive(&hspi1, &byte, &ret, 1, 10);//把byte 写入，并读出一个值，把它存入ret
return ret;//入口是byte 的地址，读取时用的也是ret地址，一次只写入一个值10
}
/**************************************************************************************
* 函数名称：MFRC_WriteReg
* 功能描述：写一个寄存器
* 入口参数：-addr:待写的寄存器地址
* -data:待写的寄存器数据
* 出口参数：无
* 返 回 值：无
* 说 明：无
***************************************************************************************/
void MFRC_WriteReg(uint8_t addr, uint8_t data)
{
uint8_t AddrByte;
AddrByte = (addr << 1 ) & 0x7E; //求出地址字节
RS522_NSS(0); //NSS拉低
SPI1_RW_Byte(AddrByte); //写地址字节
SPI1_RW_Byte(data); //写数据
RS522_NSS(1); //NSS拉高
}
/**************************************************************************************
* 函数名称：MFRC_ReadReg
* 功能描述：读一个寄存器
* 入口参数：-addr:待读的寄存器地址
* 出口参数：无
* 返 回 值：-data:读到寄存器的数据
* 说 明：无
***************************************************************************************/
uint8_t MFRC_ReadReg(uint8_t addr)
{
uint8_t AddrByte, data;
AddrByte = ((addr << 1 ) & 0x7E ) | 0x80; //求出地址字节
RS522_NSS(0); //NSS拉低
SPI1_RW_Byte(AddrByte); //写地址字节
data = SPI1_RW_Byte(0x00); //读数据
RS522_NSS(1); //NSS拉高
return data;
}
/**************************************************************************************
* 函数名称：MFRC_SetBitMask
* 功能描述：设置寄存器的位
* 入口参数：-addr:待设置的寄存器地址
* -mask:待设置寄存器的位(可同时设置多个bit)
* 出口参数：无
* 返 回 值：无
* 说 明：无
***************************************************************************************/
void MFRC_SetBitMask(uint8_t addr, uint8_t mask)
{
uint8_t temp;
temp = MFRC_ReadReg(addr); //先读回寄存器的值
MFRC_WriteReg(addr, temp | mask); //处理过的数据再写入寄存器
}
/**************************************************************************************
* 函数名称：MFRC_ClrBitMask
* 功能描述：清除寄存器的位
* 入口参数：-addr:待清除的寄存器地址
* -mask:待清除寄存器的位(可同时清除多个bit)
* 出口参数：无
* 返 回 值：无
* 说 明：无
***************************************************************************************/
void MFRC_ClrBitMask(uint8_t addr, uint8_t mask)
{
uint8_t temp;
temp = MFRC_ReadReg(addr); //先读回寄存器的值
MFRC_WriteReg(addr, temp & ~mask); //处理过的数据再写入寄存器
}
/**************************************************************************************
* 函数名称：MFRC_CalulateCRC
* 功能描述：用MFRC计算CRC结果
* 入口参数：-pInData：带进行CRC计算的数据
* -len：带进行CRC计算的数据长度
* -pOutData：CRC计算结果
* 出口参数：-pOutData：CRC计算结果
* 返 回 值：无
* 说 明：无
***************************************************************************************/
void MFRC_CalulateCRC(uint8_t *pInData, uint8_t len, uint8_t *pOutData)
{
//0xc1 1 2 pInData[2]
uint8_t temp;
uint32_t i;
MFRC_ClrBitMask(MFRC_DivIrqReg, 0x04); //使能CRC中断
MFRC_WriteReg(MFRC_CommandReg, MFRC_IDLE); //取消当前命令的执行
MFRC_SetBitMask(MFRC_FIFOLevelReg, 0x80); //清除FIFO及其标志位
for(i = 0; i < len; i++) //将待CRC计算的数据写入FIFO
{
MFRC_WriteReg(MFRC_FIFODataReg, *(pInData + i));
}
MFRC_WriteReg(MFRC_CommandReg, MFRC_CALCCRC); //执行CRC计算
i = 100000;
do
{
temp = MFRC_ReadReg(MFRC_DivIrqReg); //读取DivIrqReg寄存器的值
i--;
}
while((i != 0) && !(temp & 0x04)); //等待CRC计算完成
pOutData[0] = MFRC_ReadReg(MFRC_CRCResultRegL); //读取CRC计算结果
pOutData[1] = MFRC_ReadReg(MFRC_CRCResultRegM);
}
/**************************************************************************************
* 函数名称：MFRC_CmdFrame
* 功能描述：MFRC522和ISO14443A卡通讯的命令帧函数
* 入口参数：-cmd：MFRC522命令字
* -pIndata：MFRC522发送给MF1卡的数据的缓冲区首地址
* -InLenByte：发送数据的字节长度
* -pOutdata：用于接收MF1卡片返回数据的缓冲区首地址
* -pOutLenBit：MF1卡返回数据的位长度
* 出口参数：-pOutdata：用于接收MF1卡片返回数据的缓冲区首地址
* -pOutLenBit：用于MF1卡返回数据位长度的首地址
* 返 回 值：-status：错误代码(MFRC_OK、MFRC_NOTAGERR、MFRC_ERR)
* 说 明：无
***************************************************************************************/
char MFRC_CmdFrame(uint8_t cmd, uint8_t *pInData, uint8_t InLenByte, uint8_t *pOutData, uint16_t *pOutLenBit)
{
uint8_t lastBits;
uint8_t n;
uint32_t i;
char status = MFRC_ERR;
uint8_t irqEn = 0x00;
uint8_t waitFor = 0x00;
/*根据命令设置标志位*/
switch(cmd)
{
case MFRC_AUTHENT: //Mifare认证
irqEn = 0x12;
waitFor = 0x10; //idleIRq中断标志
break;
case MFRC_TRANSCEIVE: //发送并接收数据
irqEn = 0x77;
waitFor = 0x30; //RxIRq和idleIRq中断标志
break;
}
/*发送命令帧前准备*/
MFRC_WriteReg(MFRC_ComIEnReg, irqEn | 0x80); //开中断
MFRC_ClrBitMask(MFRC_ComIrqReg, 0x80); //清除中断标志位SET1
MFRC_WriteReg(MFRC_CommandReg, MFRC_IDLE); //取消当前命令的执行
MFRC_SetBitMask(MFRC_FIFOLevelReg, 0x80); //清除FIFO缓冲区及其标志位
/*发送命令帧*/
for(i = 0; i < InLenByte; i++) //写入命令参数
{
MFRC_WriteReg(MFRC_FIFODataReg, pInData[i]);
}
MFRC_WriteReg(MFRC_CommandReg, cmd); //执行命令
if(cmd == MFRC_TRANSCEIVE)
{
MFRC_SetBitMask(MFRC_BitFramingReg, 0x80); //启动发送
}
i = 300000; //根据时钟频率调整,操作M1卡最大等待时间25ms
do
{
n = MFRC_ReadReg(MFRC_ComIrqReg);
i--;
}
while((i != 0) && !(n & 0x01) && !(n & waitFor)); //等待命令完成
MFRC_ClrBitMask(MFRC_BitFramingReg, 0x80); //停止发送
/*处理接收的数据*/
if(i != 0)
{
if(!(MFRC_ReadReg(MFRC_ErrorReg) & 0x1B))
{
status = MFRC_OK;
if(n & irqEn & 0x01)
{
status = MFRC_NOTAGERR;
}
if(cmd == MFRC_TRANSCEIVE)
{
n = MFRC_ReadReg(MFRC_FIFOLevelReg);
lastBits = MFRC_ReadReg(MFRC_ControlReg) & 0x07;
if (lastBits)
{
*pOutLenBit = (n - 1) * 8 + lastBits;
}
else
{
*pOutLenBit = n * 8;
}
if(n == 0)
{
n = 1;
}
if(n > MFRC_MAXRLEN)
{
n = MFRC_MAXRLEN;
}
for(i = 0; i < n; i++)
{
pOutData[i] = MFRC_ReadReg(MFRC_FIFODataReg);
}
}
}
else
{
status = MFRC_ERR;
}
}
MFRC_SetBitMask(MFRC_ControlReg, 0x80); //停止定时器运行
MFRC_WriteReg(MFRC_CommandReg, MFRC_IDLE); //取消当前命令的执行
return status;
}
/**************************************************************************************
* 函数名称：PCD_Reset
* 功能描述：PCD复位
* 入口参数：无
* 出口参数：无
* 返 回 值：无
* 说 明：无
***************************************************************************************/
void PCD_Reset(void)
{
/*硬复位*/
RS522_RST(1);//用到复位引脚
osDelay(2);
RS522_RST(0);
osDelay(2);
RS522_RST(1);
osDelay(2);
/*软复位*/
MFRC_WriteReg(MFRC_CommandReg, MFRC_RESETPHASE);
osDelay(2);
/*复位后的初始化配置*/
MFRC_WriteReg(MFRC_ModeReg, 0x3D); //CRC初始值0x6363
MFRC_WriteReg(MFRC_TReloadRegL, 30); //定时器重装值
MFRC_WriteReg(MFRC_TReloadRegH, 0);
MFRC_WriteReg(MFRC_TModeReg, 0x8D); //定时器设置
MFRC_WriteReg(MFRC_TPrescalerReg, 0x3E); //定时器预分频值
MFRC_WriteReg(MFRC_TxAutoReg, 0x40); //100%ASK
PCD_AntennaOff(); //关天线
osDelay(2);
PCD_AntennaOn(); //开天线
printf("初始化完成\n");
}
/**************************************************************************************
* 函数名称：PCD_AntennaOn
* 功能描述：开启天线,使能PCD发送能量载波信号
* 入口参数：无
* 出口参数：无
* 返 回 值：无
* 说 明：每次开启或关闭天线之间应至少有1ms的间隔
***************************************************************************************/
void PCD_AntennaOn(void)
{
uint8_t temp;
temp = MFRC_ReadReg(MFRC_TxControlReg);
if (!(temp & 0x03))
{
MFRC_SetBitMask(MFRC_TxControlReg, 0x03);
}
}
/**************************************************************************************
* 函数名称：PCD_AntennaOff
* 功能描述：关闭天线,失能PCD发送能量载波信号
* 入口参数：无
* 出口参数：无
* 返 回 值：无
* 说 明：每次开启或关闭天线之间应至少有1ms的间隔
***************************************************************************************/
void PCD_AntennaOff(void)
{
MFRC_ClrBitMask(MFRC_TxControlReg, 0x03);
}
/***************************************************************************************
* 函数名称：PCD_Init
* 功能描述：读写器初始化
* 入口参数：无
* 出口参数：无
* 返 回 值：无
* 说 明：无
***************************************************************************************/
void PCD_Init(void)
{
MFRC_Init(); //MFRC管脚配置
PCD_Reset(); //PCD复位 并初始化配置
PCD_AntennaOff(); //关闭天线
PCD_AntennaOn(); //开启天线
}
/***************************************************************************************
* 函数名称：PCD_Request
* 功能描述：寻卡
* 入口参数： -RequestMode：讯卡方式
* PICC_REQIDL：寻天线区内未进入休眠状态
* PICC_REQALL：寻天线区内全部卡
* -pCardType：用于保存卡片类型
* 出口参数：-pCardType：卡片类型
* 0x4400：Mifare_UltraLight
* 0x0400：Mifare_One(S50)
* 0x0200：Mifare_One(S70)
* 0x0800：Mifare_Pro(X)
* 0x4403：Mifare_DESFire
* 返 回 值：-status：错误代码(PCD_OK、PCD_NOTAGERR、PCD_ERR)
* 说 明：无
***************************************************************************************/
char PCD_Request(uint8_t RequestMode, uint8_t *pCardType)
{
int status;
uint16_t unLen;
uint8_t CmdFrameBuf[MFRC_MAXRLEN];
MFRC_ClrBitMask(MFRC_Status2Reg, 0x08);//关内部温度传感器
MFRC_WriteReg(MFRC_BitFramingReg, 0x07); //存储模式，发送模式，是否启动发送等
MFRC_SetBitMask(MFRC_TxControlReg, 0x03);//配置调制信号13.56MHZ
CmdFrameBuf[0] = RequestMode;
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 1, CmdFrameBuf, &unLen);
if((status == PCD_OK) && (unLen == 0x10))
{
*pCardType = CmdFrameBuf[0];
*(pCardType + 1) = CmdFrameBuf[1];
}
return status;
}
/***************************************************************************************
* 函数名称：PCD_Anticoll
* 功能描述：防冲突,获取卡号
* 入口参数：-pSnr：用于保存卡片序列号,4字节
* 出口参数：-pSnr：卡片序列号,4字节
* 返 回 值：-status：错误代码(PCD_OK、PCD_NOTAGERR、PCD_ERR)
* 说 明：无
***************************************************************************************/
char PCD_AntiColl(uint8_t *pSnr)
{
char status;
uint8_t i, snr_check = 0;
uint16_t unLen;
uint8_t CmdFrameBuf[MFRC_MAXRLEN];
MFRC_ClrBitMask(MFRC_Status2Reg, 0x08);
MFRC_WriteReg(MFRC_BitFramingReg, 0x00);
MFRC_ClrBitMask(MFRC_CollReg, 0x80);
CmdFrameBuf[0] = PICC_ANTICOLL1;
CmdFrameBuf[1] = 0x20;
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 2, CmdFrameBuf, &unLen);
if(status == PCD_OK)
{
for(i = 0; i < 4; i++)
{
*(pSnr + i) = CmdFrameBuf[i];
snr_check ^= CmdFrameBuf[i];
}
if(snr_check != CmdFrameBuf[i])
{
status = PCD_ERR;
}
}
MFRC_SetBitMask(MFRC_CollReg, 0x80);
return status;
}
/***************************************************************************************
* 函数名称：PCD_Select
* 功能描述：选卡
* 入口参数：-pSnr：卡片序列号,4字节
* 出口参数：无
* 返 回 值：-status：错误代码(PCD_OK、PCD_NOTAGERR、PCD_ERR)
* 说 明：无
***************************************************************************************/
char PCD_Select(uint8_t *pSnr)
{
char status;
uint8_t i;
uint16_t unLen;
uint8_t CmdFrameBuf[MFRC_MAXRLEN];
CmdFrameBuf[0] = PICC_ANTICOLL1;
CmdFrameBuf[1] = 0x70;
CmdFrameBuf[6] = 0;
for(i = 0; i < 4; i++)
{
CmdFrameBuf[i + 2] = *(pSnr + i);
CmdFrameBuf[6] ^= *(pSnr + i);
}
MFRC_CalulateCRC(CmdFrameBuf, 7, &CmdFrameBuf[7]);
MFRC_ClrBitMask(MFRC_Status2Reg, 0x08);
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 9, CmdFrameBuf, &unLen);
if((status == PCD_OK) && (unLen == 0x18))
{
status = PCD_OK;
}
else
{
status = PCD_ERR;
}
return status;
}
/***************************************************************************************
* 函数名称：PCD_AuthState
* 功能描述：验证卡片密码
* 入口参数：-AuthMode：验证模式
* PICC_AUTHENT1A：验证A密码
* PICC_AUTHENT1B：验证B密码
* -BlockAddr：块地址(0~63)
* -pKey：密码
* -pSnr：卡片序列号,4字节
* 出口参数：无
* 返 回 值：-status：错误代码(PCD_OK、PCD_NOTAGERR、PCD_ERR)
* 说 明：验证密码时,以扇区为单位,BlockAddr参数可以是同一个扇区的任意块
***************************************************************************************/
char PCD_AuthState(uint8_t AuthMode, uint8_t BlockAddr, uint8_t *pKey, uint8_t *pSnr)
{
char status;
uint16_t unLen;
uint8_t i, CmdFrameBuf[MFRC_MAXRLEN];
CmdFrameBuf[0] = AuthMode;
CmdFrameBuf[1] = BlockAddr;
for(i = 0; i < 6; i++)
{
CmdFrameBuf[i + 2] = *(pKey + i);
}
for(i = 0; i < 4; i++)
{
CmdFrameBuf[i + 8] = *(pSnr + i);
}
status = MFRC_CmdFrame(MFRC_AUTHENT, CmdFrameBuf, 12, CmdFrameBuf, &unLen);
if((status != PCD_OK) || (!(MFRC_ReadReg(MFRC_Status2Reg) & 0x08)))
{
status = PCD_ERR;
}
return status;
}
/***************************************************************************************
* 函数名称：PCD_WriteBlock
* 功能描述：读MF1卡数据块
* 入口参数：-BlockAddr：块地址
* -pData: 用于保存待写入的数据,16字节
* 出口参数：无
* 返 回 值：-status：错误代码(PCD_OK、PCD_NOTAGERR、PCD_ERR)
* 说 明：无
***************************************************************************************/
char PCD_WriteBlock(uint8_t BlockAddr, uint8_t *pData)
{
char status;
uint16_t unLen;
uint8_t i, CmdFrameBuf[MFRC_MAXRLEN];
CmdFrameBuf[0] = PICC_WRITE;
CmdFrameBuf[1] = BlockAddr;
MFRC_CalulateCRC(CmdFrameBuf, 2, &CmdFrameBuf[2]);
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 4, CmdFrameBuf, &unLen);
if((status != PCD_OK) || (unLen != 4) || ((CmdFrameBuf[0] & 0x0F) != 0x0A))
{
status = PCD_ERR;
}
if(status == PCD_OK)
{
for(i = 0; i < 16; i++)
{
CmdFrameBuf[i] = *(pData + i);
}
MFRC_CalulateCRC(CmdFrameBuf, 16, &CmdFrameBuf[16]);
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 18, CmdFrameBuf, &unLen);
if((status != PCD_OK) || (unLen != 4) || ((CmdFrameBuf[0] & 0x0F) != 0x0A))
{
status = PCD_ERR;
}
}
return status;
}
/***************************************************************************************
* 函数名称：PCD_ReadBlock
* 功能描述：读MF1卡数据块
* 入口参数：-BlockAddr：块地址
* -pData: 用于保存读出的数据,16字节
* 出口参数：-pData: 用于保存读出的数据,16字节
* 返 回 值：-status：错误代码(PCD_OK、PCD_NOTAGERR、PCD_ERR)
* 说 明：无
***************************************************************************************/
char PCD_ReadBlock(uint8_t BlockAddr, uint8_t *pData)
{
char status;
uint16_t unLen;
uint8_t i, CmdFrameBuf[MFRC_MAXRLEN];
CmdFrameBuf[0] = PICC_READ;
CmdFrameBuf[1] = BlockAddr;
MFRC_CalulateCRC(CmdFrameBuf, 2, &CmdFrameBuf[2]);
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 4, CmdFrameBuf, &unLen);
if((status == PCD_OK) && (unLen == 0x90))
{
for(i = 0; i < 16; i++)
{
*(pData + i) = CmdFrameBuf[i];
}
}
else
{
status = PCD_ERR;
}
return status;
}
/***************************************************************************************
* 函数名称：PCD_Value
* 功能描述：对MF1卡数据块增减值操作
* 入口参数：
* -BlockAddr：块地址
* -pValue：四字节增值的值,低位在前
* -mode：数值块操作模式
* PICC_INCREMENT：增值
* PICC_DECREMENT：减值
* 出口参数：无
* 返 回 值：-status：错误代码(PCD_OK、PCD_NOTAGERR、PCD_ERR)
* 说 明：无
***************************************************************************************/
char PCD_Value(uint8_t mode, uint8_t BlockAddr, uint8_t *pValue)
{
//0XC1 1 Increment[4]={0x03, 0x01, 0x01, 0x01};
char status;
uint16_t unLen;
uint8_t i, CmdFrameBuf[MFRC_MAXRLEN];
CmdFrameBuf[0] = mode;
CmdFrameBuf[1] = BlockAddr;
MFRC_CalulateCRC(CmdFrameBuf, 2, &CmdFrameBuf[2]);
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 4, CmdFrameBuf, &unLen);
if((status != PCD_OK) || (unLen != 4) || ((CmdFrameBuf[0] & 0x0F) != 0x0A))
{
status = PCD_ERR;
}
if(status == PCD_OK)
{
for(i = 0; i < 16; i++)
{
CmdFrameBuf[i] = *(pValue + i);
}
MFRC_CalulateCRC(CmdFrameBuf, 4, &CmdFrameBuf[4]);
unLen = 0;
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 6, CmdFrameBuf, &unLen);
if(status != PCD_ERR)
{
status = PCD_OK;
}
}
if(status == PCD_OK)
{
CmdFrameBuf[0] = PICC_TRANSFER;
CmdFrameBuf[1] = BlockAddr;
MFRC_CalulateCRC(CmdFrameBuf, 2, &CmdFrameBuf[2]);
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 4, CmdFrameBuf, &unLen);
if((status != PCD_OK) || (unLen != 4) || ((CmdFrameBuf[0] & 0x0F) != 0x0A))
{
status = PCD_ERR;
}
}
return status;
}
/***************************************************************************************
* 函数名称：PCD_BakValue
* 功能描述：备份钱包(块转存)
* 入口参数：-sourceBlockAddr：源块地址
* -goalBlockAddr ：目标块地址
* 出口参数：无
* 返 回 值：-status：错误代码(PCD_OK、PCD_NOTAGERR、PCD_ERR)
* 说 明：只能在同一个扇区内转存
***************************************************************************************/
char PCD_BakValue(uint8_t sourceBlockAddr, uint8_t goalBlockAddr)
{
char status;
uint16_t unLen;
uint8_t CmdFrameBuf[MFRC_MAXRLEN];
CmdFrameBuf[0] = PICC_RESTORE;
CmdFrameBuf[1] = sourceBlockAddr;
MFRC_CalulateCRC(CmdFrameBuf, 2, &CmdFrameBuf[2]);
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 4, CmdFrameBuf, &unLen);
if((status != PCD_OK) || (unLen != 4) || ((CmdFrameBuf[0] & 0x0F) != 0x0A))
{
status = PCD_ERR;
}
if(status == PCD_OK)
{
CmdFrameBuf[0] = 0;
CmdFrameBuf[1] = 0;
CmdFrameBuf[2] = 0;
CmdFrameBuf[3] = 0;
MFRC_CalulateCRC(CmdFrameBuf, 4, &CmdFrameBuf[4]);
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 6, CmdFrameBuf, &unLen);
if(status != PCD_ERR)
{
status = PCD_OK;
}
}
if(status != PCD_OK)
{
return PCD_ERR;
}
CmdFrameBuf[0] = PICC_TRANSFER;
CmdFrameBuf[1] = goalBlockAddr;
MFRC_CalulateCRC(CmdFrameBuf, 2, &CmdFrameBuf[2]);
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 4, CmdFrameBuf, &unLen);
if((status != PCD_OK) || (unLen != 4) || ((CmdFrameBuf[0] & 0x0F) != 0x0A))
{
status = PCD_ERR;
}
return status;
}
/***************************************************************************************
* 函数名称：PCD_Halt
* 功能描述：命令卡片进入休眠状态
* 入口参数：无
* 出口参数：无
* 返 回 值：-status：错误代码(PCD_OK、PCD_NOTAGERR、PCD_ERR)
* 说 明：无
***************************************************************************************/
char PCD_Halt(void)
{
char status;
uint16_t unLen;
uint8_t CmdFrameBuf[MFRC_MAXRLEN];
CmdFrameBuf[0] = PICC_HALT;
CmdFrameBuf[1] = 0;
MFRC_CalulateCRC(CmdFrameBuf, 2, &CmdFrameBuf[2]);
status = MFRC_CmdFrame(MFRC_TRANSCEIVE, CmdFrameBuf, 4, CmdFrameBuf, &unLen);
return status;
}
// uint8_t readUid[5]; //卡号
// uint8_t CT[3]; //卡类型
// uint8_t DATA[16]; //存放数据
//
// uint8_t KEY_A[6]= {0xff,0xff,0xff,0xff,0xff,0xff};
// uint8_t KEY_B[6]= {0xff,0xff,0xff,0xff,0xff,0xff};
// unsigned char buf[16]={0x01,0x02,0x03,0x04,0x05,0x06,0xff
// ,0x07,0x80,0x69,0x18,0x17,0x16,0x15,0x14,0x13};
//
// uint8_t status;
// uint8_t addr = 0x01*4 + 0x03; // 总共16个扇区。一个扇区4个块，从0开始算，表示第一扇区第三块
// void CardCompare(void)
// {
// uint8_t i;
// //status = PCD_WriteBlock(addr, buf);
// status = PCD_Request(0x52, CT); //找到卡返回0
// if(!status) //寻卡成功
// {
// status = PCD_ERR;
// status = PCD_AntiColl(readUid); //防冲撞
// }
//
// if(!status) //防冲撞成功
// {
// status = PCD_ERR;
// printf("卡的类型为：%x%x%x\r\n",CT[0],CT[1],CT[2]); /* 读取卡的类型 */
// printf("卡号：%x-%x-%x-%x\r\n",readUid[0],readUid[1],readUid[2],readUid[3]);
// HAL_Delay(1000);
// status=PCD_Select(readUid); /* 选卡 */
// }
//
// if(!status) //选卡成功
// {
// status = PCD_ERR;
// // 验证A密钥 块地址 密码 SN
// status = PCD_AuthState(PICC_AUTHENT1A, addr, KEY_A, readUid);
// if(status == PCD_OK)//验证A成功
// {
// printf("A密钥验证成功\r\n");
// HAL_Delay(1000);
// }
// else
// {
// printf("A密钥验证失败\r\n");
// HAL_Delay(1000);
// }
//
// // 验证B密钥 块地址 密码 SN
// status = PCD_AuthState(PICC_AUTHENT1B, addr, KEY_B, readUid);
// if(status == PCD_OK)//验证B成功
// {
// printf("B密钥验证成功\r\n");
// }
// else
// {
// printf("B密钥验证失败\r\n");
// }
// HAL_Delay(1000);
// }
//
// if(status == PCD_OK)//验证密码成功，接着读取3块
// {
// status = PCD_ERR;
// status = PCD_ReadBlock(addr, DATA);
//
// if(status == PCD_OK)//读卡成功
// {
// printf("1扇区3块DATA:");
// for(i = 0; i < 16; i++)
// {
// printf("%02x", DATA[i]);
// }
// printf("\r\n");
//
// }
// else
// {
// printf("读卡失败\r\n");
// }
// HAL_Delay(1000);
// }
//
// }

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file spi.c
* @brief This file provides code for the configuration
* of the SPI instances.
******************************************************************************
* @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 "spi.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
SPI_HandleTypeDef hspi1;
/* SPI1 init function */
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 */
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_4;
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi1.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI1_Init 2 */
/* USER CODE END SPI1_Init 2 */
}
void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(spiHandle->Instance==SPI1)
{
/* USER CODE BEGIN SPI1_MspInit 0 */
/* USER CODE END SPI1_MspInit 0 */
/* SPI1 clock enable */
__HAL_RCC_SPI1_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
/**SPI1 GPIO Configuration
PA5 ------> SPI1_SCK
PA6 ------> SPI1_MISO
PA7 ------> SPI1_MOSI
*/
GPIO_InitStruct.Pin = RC522_SCK_Pin|RC522_MOSI_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = RC522_MISO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(RC522_MISO_GPIO_Port, &GPIO_InitStruct);
/* USER CODE BEGIN SPI1_MspInit 1 */
/* USER CODE END SPI1_MspInit 1 */
}
}
void HAL_SPI_MspDeInit(SPI_HandleTypeDef* spiHandle)
{
if(spiHandle->Instance==SPI1)
{
/* USER CODE BEGIN SPI1_MspDeInit 0 */
/* USER CODE END SPI1_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_SPI1_CLK_DISABLE();
/**SPI1 GPIO Configuration
PA5 ------> SPI1_SCK
PA6 ------> SPI1_MISO
PA7 ------> SPI1_MOSI
*/
HAL_GPIO_DeInit(GPIOA, RC522_SCK_Pin|RC522_MISO_Pin|RC522_MOSI_Pin);
/* USER CODE BEGIN SPI1_MspDeInit 1 */
/* USER CODE END SPI1_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file stm32f1xx_hal_msp.c
* @brief This file provides code for the MSP Initialization
* and de-Initialization codes.
******************************************************************************
* @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"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */
/* USER CODE END TD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN Define */
/* USER CODE END Define */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN Macro */
/* USER CODE END Macro */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* External functions --------------------------------------------------------*/
/* USER CODE BEGIN ExternalFunctions */
/* USER CODE END ExternalFunctions */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* Initializes the Global MSP.
*/
void HAL_MspInit(void)
{
/* USER CODE BEGIN MspInit 0 */
/* USER CODE END MspInit 0 */
__HAL_RCC_AFIO_CLK_ENABLE();
__HAL_RCC_PWR_CLK_ENABLE();
/* System interrupt init*/
/** NOJTAG: JTAG-DP Disabled and SW-DP Enabled
*/
__HAL_AFIO_REMAP_SWJ_NOJTAG();
/* USER CODE BEGIN MspInit 1 */
/* USER CODE END MspInit 1 */
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file stm32f1xx_it.c
* @brief Interrupt Service Routines.
******************************************************************************
* @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"
#include "stm32f1xx_it.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */
/* USER CODE END TD */
/* 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 -----------------------------------------------*/
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/* External variables --------------------------------------------------------*/
/* USER CODE BEGIN EV */
/* USER CODE END EV */
/******************************************************************************/
/* Cortex-M3 Processor Interruption and Exception Handlers */
/******************************************************************************/
/**
* @brief This function handles Non maskable interrupt.
*/
void NMI_Handler(void)
{
/* USER CODE BEGIN NonMaskableInt_IRQn 0 */
/* USER CODE END NonMaskableInt_IRQn 0 */
/* USER CODE BEGIN NonMaskableInt_IRQn 1 */
while (1)
{
}
/* USER CODE END NonMaskableInt_IRQn 1 */
}
/**
* @brief This function handles Hard fault interrupt.
*/
void HardFault_Handler(void)
{
/* USER CODE BEGIN HardFault_IRQn 0 */
/* USER CODE END HardFault_IRQn 0 */
while (1)
{
/* USER CODE BEGIN W1_HardFault_IRQn 0 */
/* USER CODE END W1_HardFault_IRQn 0 */
}
}
/**
* @brief This function handles Memory management fault.
*/
void MemManage_Handler(void)
{
/* USER CODE BEGIN MemoryManagement_IRQn 0 */
/* USER CODE END MemoryManagement_IRQn 0 */
while (1)
{
/* USER CODE BEGIN W1_MemoryManagement_IRQn 0 */
/* USER CODE END W1_MemoryManagement_IRQn 0 */
}
}
/**
* @brief This function handles Prefetch fault, memory access fault.
*/
void BusFault_Handler(void)
{
/* USER CODE BEGIN BusFault_IRQn 0 */
/* USER CODE END BusFault_IRQn 0 */
while (1)
{
/* USER CODE BEGIN W1_BusFault_IRQn 0 */
/* USER CODE END W1_BusFault_IRQn 0 */
}
}
/**
* @brief This function handles Undefined instruction or illegal state.
*/
void UsageFault_Handler(void)
{
/* USER CODE BEGIN UsageFault_IRQn 0 */
/* USER CODE END UsageFault_IRQn 0 */
while (1)
{
/* USER CODE BEGIN W1_UsageFault_IRQn 0 */
/* USER CODE END W1_UsageFault_IRQn 0 */
}
}
/**
* @brief This function handles System service call via SWI instruction.
*/
void SVC_Handler(void)
{
/* USER CODE BEGIN SVCall_IRQn 0 */
/* USER CODE END SVCall_IRQn 0 */
/* USER CODE BEGIN SVCall_IRQn 1 */
/* USER CODE END SVCall_IRQn 1 */
}
/**
* @brief This function handles Debug monitor.
*/
void DebugMon_Handler(void)
{
/* USER CODE BEGIN DebugMonitor_IRQn 0 */
/* USER CODE END DebugMonitor_IRQn 0 */
/* USER CODE BEGIN DebugMonitor_IRQn 1 */
/* USER CODE END DebugMonitor_IRQn 1 */
}
/**
* @brief This function handles Pendable request for system service.
*/
void PendSV_Handler(void)
{
/* USER CODE BEGIN PendSV_IRQn 0 */
/* USER CODE END PendSV_IRQn 0 */
/* USER CODE BEGIN PendSV_IRQn 1 */
/* USER CODE END PendSV_IRQn 1 */
}
/**
* @brief This function handles System tick timer.
*/
void SysTick_Handler(void)
{
/* USER CODE BEGIN SysTick_IRQn 0 */
/* USER CODE END SysTick_IRQn 0 */
HAL_IncTick();
/* USER CODE BEGIN SysTick_IRQn 1 */
/* USER CODE END SysTick_IRQn 1 */
}
/******************************************************************************/
/* STM32F1xx Peripheral Interrupt Handlers */
/* Add here the Interrupt Handlers for the used peripherals. */
/* For the available peripheral interrupt handler names, */
/* please refer to the startup file (startup_stm32f1xx.s). */
/******************************************************************************/
/**
* @brief This function handles EXTI line[9:5] interrupts.
*/
void EXTI9_5_IRQHandler(void)
{
/* USER CODE BEGIN EXTI9_5_IRQn 0 */
/* USER CODE END EXTI9_5_IRQn 0 */
HAL_GPIO_EXTI_IRQHandler(BTN1_Pin);
/* USER CODE BEGIN EXTI9_5_IRQn 1 */
/* USER CODE END EXTI9_5_IRQn 1 */
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */

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/**
******************************************************************************
* @file syscalls.c
* @author Auto-generated by STM32CubeIDE
* @brief STM32CubeIDE Minimal System calls file
*
* For more information about which c-functions
* need which of these lowlevel functions
* please consult the Newlib libc-manual
******************************************************************************
* @attention
*
* Copyright (c) 2020-2025 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.
*
******************************************************************************
*/
/* Includes */
#include <sys/stat.h>
#include <stdlib.h>
#include <errno.h>
#include <stdio.h>
#include <signal.h>
#include <time.h>
#include <sys/time.h>
#include <sys/times.h>
/* Variables */
extern int __io_putchar(int ch) __attribute__((weak));
extern int __io_getchar(void) __attribute__((weak));
char *__env[1] = { 0 };
char **environ = __env;
/* Functions */
void initialise_monitor_handles()
{
}
int _getpid(void)
{
return 1;
}
int _kill(int pid, int sig)
{
(void)pid;
(void)sig;
errno = EINVAL;
return -1;
}
void _exit (int status)
{
_kill(status, -1);
while (1) {} /* Make sure we hang here */
}
__attribute__((weak)) int _read(int file, char *ptr, int len)
{
(void)file;
int DataIdx;
for (DataIdx = 0; DataIdx < len; DataIdx++)
{
*ptr++ = __io_getchar();
}
return len;
}
__attribute__((weak)) int _write(int file, char *ptr, int len)
{
(void)file;
int DataIdx;
for (DataIdx = 0; DataIdx < len; DataIdx++)
{
__io_putchar(*ptr++);
}
return len;
}
int _close(int file)
{
(void)file;
return -1;
}
int _fstat(int file, struct stat *st)
{
(void)file;
st->st_mode = S_IFCHR;
return 0;
}
int _isatty(int file)
{
(void)file;
return 1;
}
int _lseek(int file, int ptr, int dir)
{
(void)file;
(void)ptr;
(void)dir;
return 0;
}
int _open(char *path, int flags, ...)
{
(void)path;
(void)flags;
/* Pretend like we always fail */
return -1;
}
int _wait(int *status)
{
(void)status;
errno = ECHILD;
return -1;
}
int _unlink(char *name)
{
(void)name;
errno = ENOENT;
return -1;
}
int _times(struct tms *buf)
{
(void)buf;
return -1;
}
int _stat(char *file, struct stat *st)
{
(void)file;
st->st_mode = S_IFCHR;
return 0;
}
int _link(char *old, char *new)
{
(void)old;
(void)new;
errno = EMLINK;
return -1;
}
int _fork(void)
{
errno = EAGAIN;
return -1;
}
int _execve(char *name, char **argv, char **env)
{
(void)name;
(void)argv;
(void)env;
errno = ENOMEM;
return -1;
}

79
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/**
******************************************************************************
* @file sysmem.c
* @author Generated by STM32CubeIDE
* @brief STM32CubeIDE System Memory calls file
*
* For more information about which C functions
* need which of these lowlevel functions
* please consult the newlib libc manual
******************************************************************************
* @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.
*
******************************************************************************
*/
/* Includes */
#include <errno.h>
#include <stdint.h>
/**
* Pointer to the current high watermark of the heap usage
*/
static uint8_t *__sbrk_heap_end = NULL;
/**
* @brief _sbrk() allocates memory to the newlib heap and is used by malloc
* and others from the C library
*
* @verbatim
* ############################################################################
* # .data # .bss # newlib heap # MSP stack #
* # # # # Reserved by _Min_Stack_Size #
* ############################################################################
* ^-- RAM start ^-- _end _estack, RAM end --^
* @endverbatim
*
* This implementation starts allocating at the '_end' linker symbol
* The '_Min_Stack_Size' linker symbol reserves a memory for the MSP stack
* The implementation considers '_estack' linker symbol to be RAM end
* NOTE: If the MSP stack, at any point during execution, grows larger than the
* reserved size, please increase the '_Min_Stack_Size'.
*
* @param incr Memory size
* @return Pointer to allocated memory
*/
void *_sbrk(ptrdiff_t incr)
{
extern uint8_t _end; /* Symbol defined in the linker script */
extern uint8_t _estack; /* Symbol defined in the linker script */
extern uint32_t _Min_Stack_Size; /* Symbol defined in the linker script */
const uint32_t stack_limit = (uint32_t)&_estack - (uint32_t)&_Min_Stack_Size;
const uint8_t *max_heap = (uint8_t *)stack_limit;
uint8_t *prev_heap_end;
/* Initialize heap end at first call */
if (NULL == __sbrk_heap_end)
{
__sbrk_heap_end = &_end;
}
/* Protect heap from growing into the reserved MSP stack */
if (__sbrk_heap_end + incr > max_heap)
{
errno = ENOMEM;
return (void *)-1;
}
prev_heap_end = __sbrk_heap_end;
__sbrk_heap_end += incr;
return (void *)prev_heap_end;
}

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/**
******************************************************************************
* @file system_stm32f1xx.c
* @author MCD Application Team
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* factors, AHB/APBx prescalers and Flash settings).
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f1xx_xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (8 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f1xx_xx.s" file, to
* configure the system clock before to branch to main program.
*
* 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depending on
* the product used), refer to "HSE_VALUE".
* When HSE is used as system clock source, directly or through PLL, and you
* are using different crystal you have to adapt the HSE value to your own
* configuration.
*
******************************************************************************
* @attention
*
* Copyright (c) 2017-2021 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.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f1xx_system
* @{
*/
/** @addtogroup STM32F1xx_System_Private_Includes
* @{
*/
#include "stm32f1xx.h"
/**
* @}
*/
/** @addtogroup STM32F1xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F1xx_System_Private_Defines
* @{
*/
#if !defined (HSE_VALUE)
#define HSE_VALUE 8000000U /*!< Default value of the External oscillator in Hz.
This value can be provided and adapted by the user application. */
#endif /* HSE_VALUE */
#if !defined (HSI_VALUE)
#define HSI_VALUE 8000000U /*!< Default value of the Internal oscillator in Hz.
This value can be provided and adapted by the user application. */
#endif /* HSI_VALUE */
/*!< Uncomment the following line if you need to use external SRAM */
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
/* #define DATA_IN_ExtSRAM */
#endif /* STM32F100xE || STM32F101xE || STM32F101xG || STM32F103xE || STM32F103xG */
/* Note: Following vector table addresses must be defined in line with linker
configuration. */
/*!< Uncomment the following line if you need to relocate the vector table
anywhere in Flash or Sram, else the vector table is kept at the automatic
remap of boot address selected */
/* #define USER_VECT_TAB_ADDRESS */
#if defined(USER_VECT_TAB_ADDRESS)
/*!< Uncomment the following line if you need to relocate your vector Table
in Sram else user remap will be done in Flash. */
/* #define VECT_TAB_SRAM */
#if defined(VECT_TAB_SRAM)
#define VECT_TAB_BASE_ADDRESS SRAM_BASE /*!< Vector Table base address field.
This value must be a multiple of 0x200. */
#define VECT_TAB_OFFSET 0x00000000U /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
#else
#define VECT_TAB_BASE_ADDRESS FLASH_BASE /*!< Vector Table base address field.
This value must be a multiple of 0x200. */
#define VECT_TAB_OFFSET 0x00000000U /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
#endif /* VECT_TAB_SRAM */
#endif /* USER_VECT_TAB_ADDRESS */
/******************************************************************************/
/**
* @}
*/
/** @addtogroup STM32F1xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F1xx_System_Private_Variables
* @{
*/
/* This variable is updated in three ways:
1) by calling CMSIS function SystemCoreClockUpdate()
2) by calling HAL API function HAL_RCC_GetHCLKFreq()
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
Note: If you use this function to configure the system clock; then there
is no need to call the 2 first functions listed above, since SystemCoreClock
variable is updated automatically.
*/
uint32_t SystemCoreClock = 8000000;
const uint8_t AHBPrescTable[16U] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
const uint8_t APBPrescTable[8U] = {0, 0, 0, 0, 1, 2, 3, 4};
/**
* @}
*/
/** @addtogroup STM32F1xx_System_Private_FunctionPrototypes
* @{
*/
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
#endif /* STM32F100xE || STM32F101xE || STM32F101xG || STM32F103xE || STM32F103xG */
/**
* @}
*/
/** @addtogroup STM32F1xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemCoreClock variable.
* @note This function should be used only after reset.
* @param None
* @retval None
*/
void SystemInit (void)
{
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
#endif
/* Configure the Vector Table location -------------------------------------*/
#if defined(USER_VECT_TAB_ADDRESS)
SCB->VTOR = VECT_TAB_BASE_ADDRESS | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */
#endif /* USER_VECT_TAB_ADDRESS */
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value
* 8 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value
* 8 MHz or 25 MHz, depending on the product used), user has to ensure
* that HSE_VALUE is same as the real frequency of the crystal used.
* Otherwise, this function may have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
* @param None
* @retval None
*/
void SystemCoreClockUpdate (void)
{
uint32_t tmp = 0U, pllmull = 0U, pllsource = 0U;
#if defined(STM32F105xC) || defined(STM32F107xC)
uint32_t prediv1source = 0U, prediv1factor = 0U, prediv2factor = 0U, pll2mull = 0U;
#endif /* STM32F105xC */
#if defined(STM32F100xB) || defined(STM32F100xE)
uint32_t prediv1factor = 0U;
#endif /* STM32F100xB or STM32F100xE */
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00U: /* HSI used as system clock */
SystemCoreClock = HSI_VALUE;
break;
case 0x04U: /* HSE used as system clock */
SystemCoreClock = HSE_VALUE;
break;
case 0x08U: /* PLL used as system clock */
/* Get PLL clock source and multiplication factor ----------------------*/
pllmull = RCC->CFGR & RCC_CFGR_PLLMULL;
pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;
#if !defined(STM32F105xC) && !defined(STM32F107xC)
pllmull = ( pllmull >> 18U) + 2U;
if (pllsource == 0x00U)
{
/* HSI oscillator clock divided by 2 selected as PLL clock entry */
SystemCoreClock = (HSI_VALUE >> 1U) * pllmull;
}
else
{
#if defined(STM32F100xB) || defined(STM32F100xE)
prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1U;
/* HSE oscillator clock selected as PREDIV1 clock entry */
SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull;
#else
/* HSE selected as PLL clock entry */
if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET)
{/* HSE oscillator clock divided by 2 */
SystemCoreClock = (HSE_VALUE >> 1U) * pllmull;
}
else
{
SystemCoreClock = HSE_VALUE * pllmull;
}
#endif
}
#else
pllmull = pllmull >> 18U;
if (pllmull != 0x0DU)
{
pllmull += 2U;
}
else
{ /* PLL multiplication factor = PLL input clock * 6.5 */
pllmull = 13U / 2U;
}
if (pllsource == 0x00U)
{
/* HSI oscillator clock divided by 2 selected as PLL clock entry */
SystemCoreClock = (HSI_VALUE >> 1U) * pllmull;
}
else
{/* PREDIV1 selected as PLL clock entry */
/* Get PREDIV1 clock source and division factor */
prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC;
prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1U;
if (prediv1source == 0U)
{
/* HSE oscillator clock selected as PREDIV1 clock entry */
SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull;
}
else
{/* PLL2 clock selected as PREDIV1 clock entry */
/* Get PREDIV2 division factor and PLL2 multiplication factor */
prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4U) + 1U;
pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8U) + 2U;
SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull;
}
}
#endif /* STM32F105xC */
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK clock frequency ----------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4U)];
/* HCLK clock frequency */
SystemCoreClock >>= tmp;
}
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
/**
* @brief Setup the external memory controller. Called in startup_stm32f1xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f1xx_xx.s/.c before jump to main.
* This function configures the external SRAM mounted on STM3210E-EVAL
* board (STM32 High density devices). This SRAM will be used as program
* data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
__IO uint32_t tmpreg;
/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is
required, then adjust the Register Addresses */
/* Enable FSMC clock */
RCC->AHBENR = 0x00000114U;
/* Delay after an RCC peripheral clock enabling */
tmpreg = READ_BIT(RCC->AHBENR, RCC_AHBENR_FSMCEN);
/* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */
RCC->APB2ENR = 0x000001E0U;
/* Delay after an RCC peripheral clock enabling */
tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_IOPDEN);
(void)(tmpreg);
/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/
/*---------------- SRAM Address lines configuration -------------------------*/
/*---------------- NOE and NWE configuration --------------------------------*/
/*---------------- NE3 configuration ----------------------------------------*/
/*---------------- NBL0, NBL1 configuration ---------------------------------*/
GPIOD->CRL = 0x44BB44BBU;
GPIOD->CRH = 0xBBBBBBBBU;
GPIOE->CRL = 0xB44444BBU;
GPIOE->CRH = 0xBBBBBBBBU;
GPIOF->CRL = 0x44BBBBBBU;
GPIOF->CRH = 0xBBBB4444U;
GPIOG->CRL = 0x44BBBBBBU;
GPIOG->CRH = 0x444B4B44U;
/*---------------- FSMC Configuration ---------------------------------------*/
/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/
FSMC_Bank1->BTCR[4U] = 0x00001091U;
FSMC_Bank1->BTCR[5U] = 0x00110212U;
}
#endif /* DATA_IN_ExtSRAM */
#endif /* STM32F100xE || STM32F101xE || STM32F101xG || STM32F103xE || STM32F103xG */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file usart.c
* @brief This file provides code for the configuration
* of the USART instances.
******************************************************************************
* @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 "usart.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
UART_HandleTypeDef huart1;
/* USART1 init function */
void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(uartHandle->Instance==USART1)
{
/* USER CODE BEGIN USART1_MspInit 0 */
/* USER CODE END USART1_MspInit 0 */
/* USART1 clock enable */
__HAL_RCC_USART1_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
/**USART1 GPIO Configuration
PA9 ------> USART1_TX
PA10 ------> USART1_RX
*/
GPIO_InitStruct.Pin = GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* USER CODE BEGIN USART1_MspInit 1 */
/* USER CODE END USART1_MspInit 1 */
}
}
void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
{
if(uartHandle->Instance==USART1)
{
/* USER CODE BEGIN USART1_MspDeInit 0 */
/* USER CODE END USART1_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_USART1_CLK_DISABLE();
/**USART1 GPIO Configuration
PA9 ------> USART1_TX
PA10 ------> USART1_RX
*/
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
/* USER CODE BEGIN USART1_MspDeInit 1 */
/* USER CODE END USART1_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */