hpm6750/controller_yy_app/v8/v8m/bsp_V8M_flash.c

#if 0
#include "bsp_V8M_flash.h"
#include "stm32f4xx.h"

#define IAP_FLAG_ADDR ((uint32_t)0x0800C000)

#define IPA_FLAG_NEED_UPDATE ((uint16_t)0xABCD)

// FLASH扇区的基地址
#define ADDR_FLASH_SECTOR_0                                                    \
    ((uint32_t)0x08000000) /* Base @ of Sector 0, 16 Kbyte */
#define ADDR_FLASH_SECTOR_1                                                    \
    ((uint32_t)0x08004000) /* Base @ of Sector 1, 16 Kbyte */
#define ADDR_FLASH_SECTOR_2                                                    \
    ((uint32_t)0x08008000) /* Base @ of Sector 2, 16 Kbyte */
#define ADDR_FLASH_SECTOR_3                                                    \
    ((uint32_t)0x0800C000) /* Base @ of Sector 3, 16 Kbyte */
#define ADDR_FLASH_SECTOR_4                                                    \
    ((uint32_t)0x08010000) /* Base @ of Sector 4, 64 Kbyte */
#define ADDR_FLASH_SECTOR_5                                                    \
    ((uint32_t)0x08020000) /* Base @ of Sector 5, 128 Kbyte */
#define ADDR_FLASH_SECTOR_6                                                    \
    ((uint32_t)0x08040000) /* Base @ of Sector 6, 128 Kbyte */
#define ADDR_FLASH_SECTOR_7                                                    \
    ((uint32_t)0x08060000) /* Base @ of Sector 7, 128 Kbyte */
#define ADDR_FLASH_SECTOR_8                                                    \
    ((uint32_t)0x08080000) /* Base @ of Sector 8, 128 Kbyte */
#define ADDR_FLASH_SECTOR_9                                                    \
    ((uint32_t)0x080A0000) /* Base @ of Sector 9, 128 Kbyte */
#define ADDR_FLASH_SECTOR_10                                                   \
    ((uint32_t)0x080C0000) /* Base @ of Sector 10, 128 Kbyte */
#define ADDR_FLASH_SECTOR_11                                                   \
    ((uint32_t)0x080E0000) /* Base @ of Sector 11, 128 Kbyte */

// FLASH的结束地址
#define USER_FLASH_END_ADDRESS 0x080FFFFF
//用户用来存储APP的FLASH大小
#define USER_FLASH_SIZE (USER_FLASH_END_ADDRESS - APPLICATION_ADDRESS + 1)

//用户APP起始地址
#define APPLICATION_ADDRESS (uint32_t)0x08010000

/**
 * @brief 根据 mcu flash 地址计算 所在扇区
 */
static uint32_t GetSector(uint32_t Address)
{
    uint32_t sector = 0;

    if ((Address < ADDR_FLASH_SECTOR_1) && (Address >= ADDR_FLASH_SECTOR_0))
    {
        sector = FLASH_Sector_0;
    }
    else if ((Address < ADDR_FLASH_SECTOR_2) &&
             (Address >= ADDR_FLASH_SECTOR_1))
    {
        sector = FLASH_Sector_1;
    }
    else if ((Address < ADDR_FLASH_SECTOR_3) &&
             (Address >= ADDR_FLASH_SECTOR_2))
    {
        sector = FLASH_Sector_2;
    }
    else if ((Address < ADDR_FLASH_SECTOR_4) &&
             (Address >= ADDR_FLASH_SECTOR_3))
    {
        sector = FLASH_Sector_3;
    }
    else if ((Address < ADDR_FLASH_SECTOR_5) &&
             (Address >= ADDR_FLASH_SECTOR_4))
    {
        sector = FLASH_Sector_4;
    }
    else if ((Address < ADDR_FLASH_SECTOR_6) &&
             (Address >= ADDR_FLASH_SECTOR_5))
    {
        sector = FLASH_Sector_5;
    }
    else if ((Address < ADDR_FLASH_SECTOR_7) &&
             (Address >= ADDR_FLASH_SECTOR_6))
    {
        sector = FLASH_Sector_6;
    }
    else if ((Address < ADDR_FLASH_SECTOR_8) &&
             (Address >= ADDR_FLASH_SECTOR_7))
    {
        sector = FLASH_Sector_7;
    }
    else if ((Address < ADDR_FLASH_SECTOR_9) &&
             (Address >= ADDR_FLASH_SECTOR_8))
    {
        sector = FLASH_Sector_8;
    }
    else if ((Address < ADDR_FLASH_SECTOR_10) &&
             (Address >= ADDR_FLASH_SECTOR_9))
    {
        sector = FLASH_Sector_9;
    }
    else if ((Address < ADDR_FLASH_SECTOR_11) &&
             (Address >= ADDR_FLASH_SECTOR_10))
    {
        sector = FLASH_Sector_10;
    }
    else if ((Address < USER_FLASH_END_ADDRESS) &&
             (Address >= ADDR_FLASH_SECTOR_11))
    {
        sector = FLASH_Sector_11;
    }
    return sector;
}

/**
 * @brief mcu flash 初始化，写入操作前调用，会解锁 mcu flash, 清除标志位
 */
void V8M_McuFlashInit(void)
{
    //解锁
    FLASH_Unlock();

    //清除flash待处理标志位
    FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
                    FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
}

/**
 * @brief 从 mcu flash 读取 N 个字节
 */
int V8M_McuFlashReadNbytes(uint32_t ReadAddress, uint8_t *ReadBuf,
                           int32_t ReadNum)
{
    int DataNum = 0;

    while (DataNum < ReadNum)
    {
        *(ReadBuf + DataNum) = *(__IO uint8_t *)ReadAddress++;
        DataNum++;
    }

    return DataNum;
}

/**
 * @brief 往 mcu flash 指定地址写入 2 字节类型数据
 */
void V8M_McuFlashWriteHalfWord(uint32_t FlashAddress, uint16_t data)
{
    while (FLASH_EraseSector(GetSector(FlashAddress), VoltageRange_3) !=
           FLASH_COMPLETE)
        ;
    FLASH_ProgramHalfWord(FlashAddress, data);
}

/**
 * @brief mcu flash 擦除页
 */
void McuFlahErasePage() {}

/**
 * @brief mcu flash 上锁，写入结束后执行
 */
void V8M_McuFlashLock(void) { FLASH_Lock(); }

/**
 * @brief 清除升级标志
 */
void V8M_clear_iap_flag(void)
{
    __disable_irq();
    V8M_McuFlashInit();
    V8M_McuFlashWriteHalfWord(IAP_FLAG_ADDR, (uint16_t)0xFFFF);
    V8M_McuFlashLock();
    __enable_irq();
}

/**
 * @brief 记录升级标志
 */
void V8M_record_iap_flag(void)
{
    __disable_irq();
    V8M_McuFlashInit();
    V8M_McuFlashWriteHalfWord(IAP_FLAG_ADDR, IPA_FLAG_NEED_UPDATE);
    V8M_McuFlashLock();
    __enable_irq();
}

/**
 * @brief 检查升级标志位
 * @note 主控的升级标志位位于 mcu 板载存储中，地址 0x800C000, 需要升级标志为
 * 0xABCD
 */
void V8M_check_iap_flag(void)
{
    uint16_t iapFlag;

    V8M_McuFlashReadNbytes(IAP_FLAG_ADDR, (uint8_t *)&iapFlag, sizeof(iapFlag));

    /* 如果升级标志位写的是需要升级，则写为不需要升级 */
    if (iapFlag == IPA_FLAG_NEED_UPDATE)
    {
        V8M_clear_iap_flag();
    }
}

#endif