个别芯片存储空间为32k，注意使用范围，并且利用debug或者.map文件，避开程序占用的页。
g0hal库和其他系列有些不同，根据官方例程修改。
GO30F6P6是 32k FLASH.基地址0x8000000，长度0x8000。即0x8000000-0x8008000。在keil配置的Target的rom和debug中flash选择可看到
具体计算过程省略
写FLASH
/**
* @brief 获取 地址Addr 在 Flash中式第几页。根据每页大小2k
* @param Addr 开头地址
* @retval FLASH页数
*/
static uint32_t GetPage(uint32_t Addr)
{
uint32_t page = 0;
page = (Addr-FLASH_BASE) / FLASH_PAGE_SIZE;
return page;
}
/**
* @brief 擦除FLASH
* @param s_addr 开头地址
* @param end_addr 结束地址
*/
void Erase_Flash(uint32_t s_addr,uint32_t end_addr)
{
uint32_t SectorError=0,FirstPage,NbOfPages;
FLASH_EraseInitTypeDef E_FLASH;
/* Get the 1st page to erase */
FirstPage = GetPage(s_addr);
/* Get the number of pages to erase from 1st page */
NbOfPages = GetPage(end_addr) - FirstPage + 1;
E_FLASH.TypeErase = FLASH_TYPEERASE_PAGES;
E_FLASH.Page = FirstPage;
E_FLASH.NbPages =NbOfPages;
if(HAL_FLASHEx_Erase(&E_FLASH,&SectorError) != HAL_OK) {
}
}
/**
* @brief 写Flash,写之前需要擦除整页flash，修改宏定义
* @param start_address 开头地址
* @param end_address 结束地址
* @param *buf 写入数据
* @param length 写入字节数据个数
*/
void Write_Flash(uint32_t start_address,uint32_t end_address,uint64_t *buf, uint16_t length)
{
uint64_t data = 0;
uint16_t i;
if(start_address < STM32_FLASH_BASE || (start_address >= (STM32_FLASH_BASE + STM_SECTOR_SIZE * STM32_FLASH_SIZE)))
{
//长度不在范围
return;
}
HAL_FLASH_Unlock();//解锁flash
Erase_Flash(start_address , end_address); //擦除Flash
for(i=0;i<length;i++)
{
data = 0;
data=buf[i];
if(HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD,start_address,data) != HAL_OK)
{
HAL_FLASH_Lock();
return;
}
start_address += 8;
}
HAL_FLASH_Lock();//上锁
}读FLASH
uint32_t ST_Flash_Read(uint32_t R_Addr)
{
//直接读地址，可以读取其他类型，。
return *(volatile uint32_t *)R_Addr;
}
头文件
#ifndef __HAL_FLASH_H
#define __HAL_FLASH_H
#include "main.h"
#define __IO volatile
typedef __IO uint16_t vu16;
#define STM32_FLASH_SIZE 32 //所选STM32的FLASH容量大小(单位为K)
#define STM_SECTOR_SIZE 2048 //2K字节
#define STM32_FLASH_BASE 0x08000000 //STM32 FLASH的起始地址
//开始28672 = 7000，结束77FF
#define FLASH_USER_START_ADDR 0x08007000 /* 第13页 Start @ of user Flash area */
#define FLASH_USER_END_ADDR 0x080077FF /* 第13页 End @ of user Flash area */
void Erase_Flash(uint32_t s_addr,uint32_t end_addr) ;
void Write_Flash(uint32_t start_address,uint32_t end_address,uint64_t *buf, uint16_t length);
uint32_t ST_Flash_Read(uint32_t R_Addr);
// void KaiJ_Read_FLASH();
// extern uint64_t set_Flashdat;
#endif
