帮我写一个stm32 标准库 保存数据最好代码
时间: 2023-08-12 15:05:06 浏览: 86
好的,下面是一个使用STM32标准库保存数据的示例代码,具体实现方式为使用EEPROM存储器来保存数据。
```c
#include "stm32f10x.h"
#include "stm32f10x_flash.h"
#define EEPROM_START_ADDR 0x08080000 // EEPROM存储器的起始地址
#define DATA_SIZE 16 // 数据大小
void EEPROM_Write(uint32_t addr, uint8_t *data, uint32_t size)
{
uint32_t i;
FLASH_Unlock(); // 解锁FLASH
FLASH_ErasePage(EEPROM_START_ADDR); // 擦除EEPROM存储器页
for(i = 0; i < size; i++) {
FLASH_ProgramByte(addr + i, data[i]); // 逐字节写入数据
}
FLASH_Lock(); // 锁定FLASH
}
void EEPROM_Read(uint32_t addr, uint8_t *data, uint32_t size)
{
uint32_t i;
for(i = 0; i < size; i++) {
data[i] = *(__IO uint8_t*)(addr + i); // 逐字节读取数据
}
}
int main(void)
{
uint8_t data[DATA_SIZE] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10};
uint8_t data_read[DATA_SIZE];
EEPROM_Write(EEPROM_START_ADDR, data, DATA_SIZE); // 写入数据
EEPROM_Read(EEPROM_START_ADDR, data_read, DATA_SIZE); // 读取数据
while(1);
}
```
在这个示例代码中,我们首先定义了EEPROM存储器的起始地址和数据大小,然后编写了EEPROM_Write和EEPROM_Read函数来分别实现数据的写入和读取操作。在main函数中,我们首先将数据写入EEPROM存储器中,然后再从EEPROM存储器中读取数据,并将读取到的数据保存到data_read数组中。最后,我们将程序挂起,等待进一步操作。
需要注意的是,这个示例代码只是一个简单的实现方式,实际应用中需要根据具体需求进行适当修改。同时,需要注意EEPROM存储器的写入寿命和容量限制,以及FLASH存储器的擦除和写入操作所需的时间等因素。
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