stm32f030f4 flash读写
时间: 2023-10-31 22:06:09 浏览: 137
对于STM32F030F4来说,它的Flash容量为16KB,可以通过读写寄存器来进行Flash的读写操作。具体步骤如下:
1. 解锁Flash:首先需要解锁Flash,才能进行写操作。解锁Flash的方法是向FLASH->KEYR寄存器写入0x45670123,再写入0xCDEF89AB。
2. 擦除Flash:如果需要对Flash进行擦除操作,可以使用FLASH_ErasePage函数。该函数需要传入要擦除的页地址,可以使用FLASH_GetPageAddress函数来获取页地址。
3. 写入数据:写入数据需要使用FLASH_ProgramHalfWord函数。该函数需要传入要写入的地址和数据。
4. 锁定Flash:写入完成后,需要锁定Flash,以保护数据的安全。锁定Flash的方法是向FLASH->CR寄存器写入0x00000080。
相关问题
利用HAL库编写一个stm32f030f4 内部flash读写的函数
HAL库是STM32系列微控制器提供的软件抽象层,它封装了硬件访问细节,使得开发者可以更方便地操作设备的内部Flash。在STM32F030F4上,你可以使用HAL Flash API来实现Flash的读写操作。
首先,确保已包含了相关的头文件,例如`stm32f0xx_hal_flash.h`。然后,按照以下步骤创建函数:
```c
#include "stm32f0xx_hal.h"
/**
* @brief Function to read data from STM32F030F4's internal Flash.
* @param __HANDLE__: Flash Handle (usually HAL_FLASH handle)
* @param __address__: Address in Flash memory to start reading from
* @param __buffer__: Pointer to the buffer where the data will be stored
* @param __size__: Number of bytes to read
*/
void ReadFlash(HAL_FLASH_HandleTypeDef *__HANDLE__, uint32_t __address__, uint8_t *__buffer__, uint32_t __size__) {
HAL_StatusTypeDef status;
// Check if flash is ready for operation
if (HAL_FLASH_GetState(__HANDLE__) != HAL_FLASH_STATE_READY) {
while (HAL_FLASH_GetState(__HANDLE__) != HAL_FLASH_STATE_READY);
}
status = HAL_FLASH_ReadBytes(__HANDLE__, __address__, __buffer__, __size__);
if (status != HAL_OK) {
/* Error handling */
while (1);
}
}
/**
* @brief Function to write data to STM32F030F4's internal Flash.
* @param __HANDLE__: Flash Handle (usually HAL_FLASH handle)
* @param __address__: Address in Flash memory to start writing to
* @param __buffer__: Pointer to the data to write
* @param __size__: Number of bytes to write
*/
void WriteFlash(HAL_FLASH_HandleTypeDef *__HANDLE__, uint32_t __address__, const uint8_t *__buffer__, uint32_t __size__) {
HAL_StatusTypeDef status;
// Check if flash is ready for programming
if (HAL_FLASH_GetState(__HANDLE__) != HAL_FLASH_STATEPROGRAMMING) {
while (HAL_FLASH_GetState(__HANDLE__) != HAL_FLASH_STATEPROGRAMMING);
}
status = HAL_FLASH_Program[__HANDLE__](FLASH_TYPEPROGRAM, __address__, __buffer__, __size__);
if (status != HAL_OK) {
/* Error handling */
while (1);
}
}
stm32f407 hal flash读写
在STM32F407上使用HAL库进行flash读写的示例代码如下所示:
```c
#include "stm32f4xx_hal.h"
#include "stdio.h"
#define FLASH_SAVE_ADDR 0x0800F800 // Flash保存地址
void HAL_FLASH_Read(uint32_t address, uint32_t* data, uint32_t size)
{
for (uint32_t i = 0; i < size; i++)
{
data[i = *(uint32_t*)address;
address
#### 引用[.reference_title]
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