实例介绍
【实例简介】stm32f103控制w25q64
【实例截图】
【核心代码】
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* <h2><center>© 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 */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* <h2><center>© 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 "main.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
SPI_HandleTypeDef hspi2;
SPI_HandleTypeDef hspi2;
UART_HandleTypeDef huart1;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI2_Init(void);
static void MX_USART1_UART_Init(void);
/* USER CODE BEGIN PFP */
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI2_Init(void);
static void MX_USART1_UART_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE BEGIN 0 */
/* 添加"printf"打印功能 */
int fputc(int ch, FILE *f)
{
HAL_UART_Transmit(&huart1, (uint8_t *)&ch,1, 0xFFFF);
return ch;
}
int fputc(int ch, FILE *f)
{
HAL_UART_Transmit(&huart1, (uint8_t *)&ch,1, 0xFFFF);
return ch;
}
/* W25Q64的指令 */
uint8_t w25x_read_id = 0x90; // 读ID
uint8_t m_addr[3] = {0,0,0}; // 测试地址0x000000
uint8_t check_addr = 0x05; // 检查线路是否繁忙
uint8_t enable_write = 0x06; // 使能了才能改变芯片数据
uint8_t erase_addr = 0x20; // 擦除命令
uint8_t write_addr = 0x02; // 写数据命令
uint8_t read_addr = 0x03; // 读数据命令
uint8_t w25x_read_id = 0x90; // 读ID
uint8_t m_addr[3] = {0,0,0}; // 测试地址0x000000
uint8_t check_addr = 0x05; // 检查线路是否繁忙
uint8_t enable_write = 0x06; // 使能了才能改变芯片数据
uint8_t erase_addr = 0x20; // 擦除命令
uint8_t write_addr = 0x02; // 写数据命令
uint8_t read_addr = 0x03; // 读数据命令
/* 读ID */
void ReadID(void)
{
uint8_t temp_ID[5] = {0,0,0,0,0}; // 接收缓存
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET); // 使能CS
HAL_SPI_Transmit(&hspi2, &w25x_read_id, 1, 100); // 读ID发送指令
HAL_SPI_Receive(&hspi2, temp_ID, 5, 100); // 读取ID
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET); // 失能CS
/* 测试打印 */
printf("readID is %x%x\n",temp_ID[3],temp_ID[4]);
}
void ReadID(void)
{
uint8_t temp_ID[5] = {0,0,0,0,0}; // 接收缓存
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET); // 使能CS
HAL_SPI_Transmit(&hspi2, &w25x_read_id, 1, 100); // 读ID发送指令
HAL_SPI_Receive(&hspi2, temp_ID, 5, 100); // 读取ID
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET); // 失能CS
/* 测试打印 */
printf("readID is %x%x\n",temp_ID[3],temp_ID[4]);
}
/* 检查是否繁忙 */
void CheckBusy(void)
{
uint8_t status=1;
uint32_t timeCount=0;
do
{
timeCount ;
if(timeCount > 0xEFFFFFFF) //等待超时
{
return ;
}
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET); // 使能CS
HAL_SPI_Transmit(&hspi2, &check_addr, 1, 100); // 发送指令
HAL_SPI_Receive(&hspi2, &status, 1, 100); // 读取
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET); // 失能CS
}while((status&0x01)==0x01);
}
void CheckBusy(void)
{
uint8_t status=1;
uint32_t timeCount=0;
do
{
timeCount ;
if(timeCount > 0xEFFFFFFF) //等待超时
{
return ;
}
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET); // 使能CS
HAL_SPI_Transmit(&hspi2, &check_addr, 1, 100); // 发送指令
HAL_SPI_Receive(&hspi2, &status, 1, 100); // 读取
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET); // 失能CS
}while((status&0x01)==0x01);
}
/* 写入数据 */
void ReadData(void)
{
uint8_t temp_wdata[5] = {0x99,0x88,0x77,0x66,0x55}; // 需要写入的数据
/* 检查是否繁忙 */
CheckBusy();
/* 写使能 */
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET); // 使能CS
HAL_SPI_Transmit(&hspi2, &enable_write, 1, 100); // 发送指令
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET); // 失能CS
/* 擦除 */
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET); // 使能CS
HAL_SPI_Transmit(&hspi2, &erase_addr, 1, 100); // 发送指令
HAL_SPI_Transmit(&hspi2, m_addr, 3, 100); // 发送地址
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET); // 失能CS
/* 再次检查是否繁忙 */
CheckBusy();
/* 写使能 */
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET); // 使能CS
HAL_SPI_Transmit(&hspi2, &enable_write, 1, 100); // 发送指令
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET); // 失能CS
/* 写数据 */
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET); // 使能CS
HAL_SPI_Transmit(&hspi2, &write_addr, 1, 100); // 发送指令
HAL_SPI_Transmit(&hspi2, m_addr, 3, 100); // 地址
HAL_SPI_Transmit(&hspi2, temp_wdata, 5, 100); // 写入数据
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET); // 失能CS
}
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET); // 使能CS
HAL_SPI_Transmit(&hspi2, &write_addr, 1, 100); // 发送指令
HAL_SPI_Transmit(&hspi2, m_addr, 3, 100); // 地址
HAL_SPI_Transmit(&hspi2, temp_wdata, 5, 100); // 写入数据
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET); // 失能CS
}
/* 读取数据 */
void WriteData(void)
{
uint8_t temp_rdata[5] = {0,0,0,0,0}; // 读出数据保存的buff
/* 检查是否繁忙 */
CheckBusy();
/* 开始读数据 */
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET); // 使能CS
HAL_SPI_Transmit(&hspi2, &read_addr, 1, 100); // 读发送指令
HAL_SPI_Transmit(&hspi2, m_addr, 3, 100); // 地址
HAL_SPI_Receive(&hspi2, temp_rdata, 5, 100); // 拿到数据
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET); // 失能CS
/* 测试打印 */
printf("Read flash data is:%x %x %x %x %x\n",temp_rdata[0],temp_rdata[1],temp_rdata[2],temp_rdata[3],temp_rdata[4]);
}
void WriteData(void)
{
uint8_t temp_rdata[5] = {0,0,0,0,0}; // 读出数据保存的buff
/* 检查是否繁忙 */
CheckBusy();
/* 开始读数据 */
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET); // 使能CS
HAL_SPI_Transmit(&hspi2, &read_addr, 1, 100); // 读发送指令
HAL_SPI_Transmit(&hspi2, m_addr, 3, 100); // 地址
HAL_SPI_Receive(&hspi2, temp_rdata, 5, 100); // 拿到数据
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET); // 失能CS
/* 测试打印 */
printf("Read flash data is:%x %x %x %x %x\n",temp_rdata[0],temp_rdata[1],temp_rdata[2],temp_rdata[3],temp_rdata[4]);
}
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
* @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();
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_SPI2_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
MX_GPIO_Init();
MX_SPI2_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
ReadID();
WriteData();
ReadData();
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN WHILE */
ReadID();
WriteData();
ReadData();
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 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};
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Initializes the CPU, AHB and APB busses clocks
*/
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 busses 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;
*/
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 busses 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();
}
}
{
Error_Handler();
}
}
/**
* @brief SPI2 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI2_Init(void)
{
* @brief SPI2 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI2_Init(void)
{
/* USER CODE BEGIN SPI2_Init 0 */
/* USER CODE END SPI2_Init 0 */
/* USER CODE BEGIN SPI2_Init 1 */
/* USER CODE END SPI2_Init 1 */
/* SPI2 parameter configuration*/
hspi2.Instance = SPI2;
hspi2.Init.Mode = SPI_MODE_MASTER;
hspi2.Init.Direction = SPI_DIRECTION_2LINES;
hspi2.Init.DataSize = SPI_DATASIZE_8BIT;
hspi2.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi2.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi2.Init.NSS = SPI_NSS_SOFT;
hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi2.Init.TIMode = SPI_TIMODE_DISABLE;
hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi2.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI2_Init 2 */
/* SPI2 parameter configuration*/
hspi2.Instance = SPI2;
hspi2.Init.Mode = SPI_MODE_MASTER;
hspi2.Init.Direction = SPI_DIRECTION_2LINES;
hspi2.Init.DataSize = SPI_DATASIZE_8BIT;
hspi2.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi2.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi2.Init.NSS = SPI_NSS_SOFT;
hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi2.Init.TIMode = SPI_TIMODE_DISABLE;
hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi2.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI2_Init 2 */
/* USER CODE END SPI2_Init 2 */
}
/**
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static void MX_USART1_UART_Init(void)
{
* @brief USART1 Initialization Function
* @param None
* @retval None
*/
static 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 */
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 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_RESET);
/*Configure GPIO pin : PG13 */
GPIO_InitStruct.Pin = GPIO_PIN_13;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_13;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
* @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 */
/**
* @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 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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