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FlashDriver中的函数如何与地址对应？ #1

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zangege opened this issue Apr 29, 2021 · 2 comments
Closed

FlashDriver中的函数如何与地址对应？ #1

zangege opened this issue Apr 29, 2021 · 2 comments
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@SummerFalls
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good first issue Good for newcomers question Further information is requested

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@zangege
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zangege commented Apr 29, 2021

大神你好，我想问下FlashDriver中的函数是如何与地址对应的？是下面这个代码么？没看太懂。。对应关系还是没理太清楚，麻烦有空了解释一下。。谢谢大神。。
static const tFlashDriverAPIInfo gs_FlashDriverAPI NVM_DRIVER_SECTION = {
#if defined (S32K116) || defined (S32K142)
(tpfFLASH_DRV_EraseSector) CAL_OFFSET(FLASH_DRV_EraseSector),
(tpfFLASH_DRV_Program) CAL_OFFSET(FLASH_DRV_Program),
(tpfFLASH_DRV_VerifySection) CAL_OFFSET(FLASH_DRV_VerifySection),
(tpfFLASH_DRV_GetDefaultConfig) CAL_OFFSET(FLASH_DRV_GetDefaultConfig),
#elif defined (S32K144) || defined (S32K118)
// (tpfFLASH_DRV_EraseAllBlock) CAL_OFFSET(FLASH_DRV_EraseAllBlock),
// (tpfFLASH_DRV_VerifyAllBlock) CAL_OFFSET(FLASH_DRV_VerifyAllBlock),
(tpfFLASH_DRV_EraseSector) CAL_OFFSET(FLASH_DRV_EraseSector),
(tpfFLASH_DRV_VerifySection) CAL_OFFSET(FLASH_DRV_VerifySection),
// (tpfFLASH_DRV_EraseSuspend) CAL_OFFSET(FLASH_DRV_EraseSuspend),
// (tpfFLASH_DRV_EraseResume) CAL_OFFSET(FLASH_DRV_EraseResume),
(tpfFLASH_DRV_Program) CAL_OFFSET(FLASH_DRV_Program),
(tpfFLASH_DRV_ProgramCheck) CAL_OFFSET(FLASH_DRV_ProgramCheck),
// (tpfFLASH_DRV_ProgramSection) CAL_OFFSET(FLASH_DRV_ProgramSection),
// (tpfFLASH_DRV_EraseBlock) CAL_OFFSET(FLASH_DRV_EraseBlock),
// (tpfFLASH_DRV_CommandSequence) CAL_OFFSET(FLASH_DRV_CommandSequence),
// (tpfFLASH_DRV_VerifyBlock) CAL_OFFSET(FLASH_DRV_VerifyBlock),
#endif
@SummerFalls
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@zangege 你好，没收到邮件通知回复晚了。

我在 .ld 链接文件中，将相关的 Flash 操作函数放在了 m_NVM_Driver MEMORY 空间区域，即位于 Flash 0x10000 处，在你编译本工程后，将 Debug_FLASH 文件夹下的 hex 文件用 J-Flash 打开，你可以看到在 0x10000 开始看到有数据存在，这里的数据就包含了本数组和 Flash 操作函数。即如下数组当中的数据，即为 4 个 32位的函数偏移量和 4 个函数的数据：

/* TODO S32K_FlashDrv: #04 Flash 驱动函数表：包含前16（0x10）字节的指针映射偏移表以及相应的4个驱动函数
 * 编译后，通过 J-Flash 打开 Hex 文件提取对应地址处的内容，粘贴到以下数组即可测试
 */
uint8_t g_flashDriverRAM[] = {
    0x11, 0x00, 0x00, 0x00, 0x49, 0x01, 0x00, 0x00, 0x65, 0x02, 0x00, 0x00, 0xB1, 0x03, 0x00, 0x00,
    0x80, 0xB5, 0x88, 0xB0, 0x00, 0xAF, 0xF8, 0x60, 0xB9, 0x60, 0x7A, 0x60, 0x00, 0x23, 0x7B, 0x82,
    0x7B, 0x68, 0xBB, 0x61, 0xFB, 0x68, 0x9B, 0x68, 0x7B, 0x61, 0xBA, 0x68, 0x7B, 0x69, 0x9A, 0x42,
    0x10, 0xD3, 0xFB, 0x68, 0xDA, 0x68, 0x7B, 0x69, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x09, 0xD9,
    0xBA, 0x68, 0x7B, 0x69, 0xD3, 0x1A, 0x03, 0xF5, 0x00, 0x03, 0xBB, 0x60, 0x4F, 0xF4, 0x00, 0x63,
    0xFB, 0x61, 0x1B, 0xE0, 0xFB, 0x68, 0x1B, 0x68, 0x7B, 0x61, 0xBA, 0x68, 0x7B, 0x69, 0x9A, 0x42,
    0x0E, 0xD3, 0xFB, 0x68, 0x5A, 0x68, 0x7B, 0x69, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x07, 0xD9,
    0xBA, 0x68, 0x7B, 0x69, 0xD3, 0x1A, 0xBB, 0x60, 0x4F, 0xF4, 0x80, 0x53, 0xFB, 0x61, 0x05, 0xE0,
    0x01, 0x23, 0x7B, 0x82, 0x00, 0x23, 0xBB, 0x61, 0x00, 0x23, 0xFB, 0x61, 0xFB, 0x69, 0x5A, 0x1E,
    0xBB, 0x69, 0x13, 0x40, 0x00, 0x2B, 0x49, 0xD0, 0x01, 0x23, 0x7B, 0x82, 0x46, 0xE0, 0x29, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0x02, 0xDB, 0x02, 0x23, 0x7B, 0x82, 0x3D, 0xE0,
    0x24, 0x4B, 0x70, 0x22, 0x1A, 0x70, 0x23, 0x4B, 0x09, 0x22, 0xDA, 0x71, 0x21, 0x4A, 0xBB, 0x68,
    0x1B, 0x0C, 0xDB, 0xB2, 0x93, 0x71, 0x1F, 0x4A, 0xBB, 0x68, 0x1B, 0x0A, 0xDB, 0xB2, 0x53, 0x71,
    0x1C, 0x4B, 0xBA, 0x68, 0xD2, 0xB2, 0x1A, 0x71, 0x00, 0x23, 0x7B, 0x82, 0x19, 0x4A, 0x19, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x63, 0xF0, 0x7F, 0x03, 0xDB, 0xB2, 0x13, 0x70, 0x07, 0xE0, 0xFB, 0x68,
    0x9B, 0x69, 0xB3, 0xF1, 0xFF, 0x3F, 0x02, 0xD0, 0xFB, 0x68, 0x9B, 0x69, 0x98, 0x47, 0x11, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0xF1, 0xDA, 0x0E, 0x4B, 0x1B, 0x78, 0xDB, 0xB2,
    0x03, 0xF0, 0x71, 0x03, 0x00, 0x2B, 0x01, 0xD0, 0x01, 0x23, 0x7B, 0x82, 0xBA, 0x69, 0xFB, 0x69,
    0xD3, 0x1A, 0xBB, 0x61, 0xBA, 0x68, 0xFB, 0x69, 0x13, 0x44, 0xBB, 0x60, 0xBB, 0x69, 0x00, 0x2B,
    0x02, 0xD0, 0x7B, 0x8A, 0x00, 0x2B, 0xB2, 0xD0, 0x7B, 0x8A, 0x18, 0x46, 0x20, 0x37, 0xBD, 0x46,
    0x80, 0xBD, 0x00, 0xBF, 0x00, 0x00, 0x02, 0x40, 0x80, 0xB5, 0x86, 0xB0, 0x00, 0xAF, 0xF8, 0x60,
    0xB9, 0x60, 0x11, 0x46, 0x1A, 0x46, 0x0B, 0x46, 0xFB, 0x80, 0x13, 0x46, 0x7B, 0x71, 0x00, 0x23,
    0x7B, 0x82, 0xFB, 0x68, 0x9B, 0x68, 0x7B, 0x61, 0xBA, 0x68, 0x7B, 0x69, 0x9A, 0x42, 0x0D, 0xD3,
    0xFB, 0x68, 0xDA, 0x68, 0x7B, 0x69, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x06, 0xD9, 0xBA, 0x68,
    0x7B, 0x69, 0xD3, 0x1A, 0x03, 0xF5, 0x00, 0x03, 0xBB, 0x60, 0x14, 0xE0, 0xFB, 0x68, 0x1B, 0x68,
    0x7B, 0x61, 0xBA, 0x68, 0x7B, 0x69, 0x9A, 0x42, 0x0B, 0xD3, 0xFB, 0x68, 0x5A, 0x68, 0x7B, 0x69,
    0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x04, 0xD9, 0xBA, 0x68, 0x7B, 0x69, 0xD3, 0x1A, 0xBB, 0x60,
    0x01, 0xE0, 0x01, 0x23, 0x7B, 0x82, 0x7B, 0x8A, 0x00, 0x2B, 0x4B, 0xD1, 0x28, 0x4B, 0x1B, 0x78,
    0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0x02, 0xDB, 0x02, 0x23, 0x7B, 0x82, 0x42, 0xE0, 0x24, 0x4B,
    0x70, 0x22, 0x1A, 0x70, 0x22, 0x4B, 0x01, 0x22, 0xDA, 0x71, 0x21, 0x4A, 0xBB, 0x68, 0x1B, 0x0C,
    0xDB, 0xB2, 0x93, 0x71, 0x1E, 0x4A, 0xBB, 0x68, 0x1B, 0x0A, 0xDB, 0xB2, 0x53, 0x71, 0x1C, 0x4B,
    0xBA, 0x68, 0xD2, 0xB2, 0x1A, 0x71, 0x1A, 0x4A, 0xFB, 0x88, 0x1B, 0x0A, 0x9B, 0xB2, 0xDB, 0xB2,
    0xD3, 0x72, 0x17, 0x4B, 0xFA, 0x88, 0xD2, 0xB2, 0x9A, 0x72, 0x15, 0x4A, 0x7B, 0x79, 0x53, 0x72,
    0x00, 0x23, 0x7B, 0x82, 0x12, 0x4A, 0x12, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x63, 0xF0, 0x7F, 0x03,
    0xDB, 0xB2, 0x13, 0x70, 0x07, 0xE0, 0xFB, 0x68, 0x9B, 0x69, 0xB3, 0xF1, 0xFF, 0x3F, 0x02, 0xD0,
    0xFB, 0x68, 0x9B, 0x69, 0x98, 0x47, 0x0A, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B,
    0xF1, 0xDA, 0x07, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x03, 0xF0, 0x71, 0x03, 0x00, 0x2B, 0x01, 0xD0,
    0x01, 0x23, 0x7B, 0x82, 0x7B, 0x8A, 0x18, 0x46, 0x18, 0x37, 0xBD, 0x46, 0x80, 0xBD, 0x00, 0xBF,
    0x00, 0x00, 0x02, 0x40, 0x80, 0xB5, 0x88, 0xB0, 0x00, 0xAF, 0xF8, 0x60, 0xB9, 0x60, 0x7A, 0x60,
    0x3B, 0x60, 0x00, 0x23, 0xFB, 0x82, 0x7B, 0x68, 0x03, 0xF0, 0x07, 0x03, 0x00, 0x2B, 0x02, 0xD0,
    0x01, 0x23, 0xFB, 0x82, 0x8B, 0xE0, 0xFB, 0x68, 0x9B, 0x68, 0xBB, 0x61, 0xBA, 0x68, 0xBB, 0x69,
    0x9A, 0x42, 0x0D, 0xD3, 0xFB, 0x68, 0xDA, 0x68, 0xBB, 0x69, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42,
    0x06, 0xD9, 0xBA, 0x68, 0xBB, 0x69, 0xD3, 0x1A, 0x03, 0xF5, 0x00, 0x03, 0xBB, 0x60, 0x14, 0xE0,
    0xFB, 0x68, 0x1B, 0x68, 0xBB, 0x61, 0xBA, 0x68, 0xBB, 0x69, 0x9A, 0x42, 0x0B, 0xD3, 0xFB, 0x68,
    0x5A, 0x68, 0xBB, 0x69, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x04, 0xD9, 0xBA, 0x68, 0xBB, 0x69,
    0xD3, 0x1A, 0xBB, 0x60, 0x01, 0xE0, 0x01, 0x23, 0xFB, 0x82, 0x5A, 0xE0, 0x32, 0x4B, 0x1B, 0x78,
    0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0x02, 0xDB, 0x02, 0x23, 0xFB, 0x82, 0x51, 0xE0, 0x2E, 0x4B,
    0x70, 0x22, 0x1A, 0x70, 0x2C, 0x4B, 0x07, 0x22, 0xDA, 0x71, 0x2B, 0x4A, 0xBB, 0x68, 0x1B, 0x0C,
    0xDB, 0xB2, 0x93, 0x71, 0x28, 0x4A, 0xBB, 0x68, 0x1B, 0x0A, 0xDB, 0xB2, 0x53, 0x71, 0x26, 0x4B,
    0xBA, 0x68, 0xD2, 0xB2, 0x1A, 0x71, 0x00, 0x23, 0xFB, 0x77, 0x0C, 0xE0, 0xFA, 0x7F, 0x23, 0x4B,
    0x13, 0x44, 0xBB, 0x61, 0xBB, 0x69, 0xFA, 0x7F, 0x39, 0x68, 0x0A, 0x44, 0x12, 0x78, 0x1A, 0x70,
    0xFB, 0x7F, 0x01, 0x33, 0xFB, 0x77, 0xFB, 0x7F, 0x07, 0x2B, 0xEF, 0xD9, 0x00, 0x23, 0xFB, 0x82,
    0x19, 0x4A, 0x19, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x63, 0xF0, 0x7F, 0x03, 0xDB, 0xB2, 0x13, 0x70,
    0x07, 0xE0, 0xFB, 0x68, 0x9B, 0x69, 0xB3, 0xF1, 0xFF, 0x3F, 0x02, 0xD0, 0xFB, 0x68, 0x9B, 0x69,
    0x98, 0x47, 0x11, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0xF1, 0xDA, 0x0E, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x03, 0xF0, 0x71, 0x03, 0x00, 0x2B, 0x01, 0xD0, 0x01, 0x23, 0xFB, 0x82,
    0xBB, 0x68, 0x08, 0x33, 0xBB, 0x60, 0x7B, 0x68, 0x08, 0x3B, 0x7B, 0x60, 0x3B, 0x68, 0x08, 0x33,
    0x3B, 0x60, 0x7B, 0x68, 0x00, 0x2B, 0x02, 0xD0, 0xFB, 0x8A, 0x00, 0x2B, 0x9E, 0xD0, 0xFB, 0x8A,
    0x18, 0x46, 0x20, 0x37, 0xBD, 0x46, 0x80, 0xBD, 0x00, 0x00, 0x02, 0x40, 0x08, 0x00, 0x02, 0x40,
    0x80, 0xB5, 0x8A, 0xB0, 0x00, 0xAF, 0xF8, 0x60, 0xB9, 0x60, 0x7A, 0x60, 0x3B, 0x60, 0x00, 0x23,
    0xFB, 0x82, 0x7B, 0x68, 0x03, 0xF0, 0x03, 0x03, 0x00, 0x2B, 0x02, 0xD0, 0x01, 0x23, 0xFB, 0x82,
    0xA8, 0xE0, 0x7B, 0x68, 0x3B, 0x62, 0xFB, 0x68, 0x9B, 0x68, 0x7B, 0x62, 0xBA, 0x68, 0x7B, 0x6A,
    0x9A, 0x42, 0x0D, 0xD3, 0xFB, 0x68, 0xDA, 0x68, 0x7B, 0x6A, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42,
    0x06, 0xD9, 0xBA, 0x68, 0x7B, 0x6A, 0xD3, 0x1A, 0x03, 0xF5, 0x00, 0x03, 0xBB, 0x60, 0x16, 0xE0,
    0xFB, 0x68, 0x1B, 0x68, 0x7B, 0x62, 0xBA, 0x68, 0x7B, 0x6A, 0x9A, 0x42, 0x0B, 0xD3, 0xFB, 0x68,
    0x5A, 0x68, 0x7B, 0x6A, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x04, 0xD9, 0xBA, 0x68, 0x7B, 0x6A,
    0xD3, 0x1A, 0xBB, 0x60, 0x03, 0xE0, 0x01, 0x23, 0xFB, 0x82, 0x00, 0x23, 0x3B, 0x62, 0x73, 0xE0,
    0x3F, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0x02, 0xDB, 0x02, 0x23, 0xFB, 0x82,
    0x6A, 0xE0, 0x3B, 0x4B, 0x70, 0x22, 0x1A, 0x70, 0x39, 0x4B, 0x02, 0x22, 0xDA, 0x71, 0x38, 0x4A,
    0xBB, 0x68, 0x1B, 0x0C, 0xDB, 0xB2, 0x93, 0x71, 0x35, 0x4A, 0xBB, 0x68, 0x1B, 0x0A, 0xDB, 0xB2,
    0x53, 0x71, 0x33, 0x4B, 0xBA, 0x68, 0xD2, 0xB2, 0x1A, 0x71, 0x31, 0x4A, 0x97, 0xF8, 0x34, 0x30,
    0xD3, 0x72, 0x00, 0x23, 0xFB, 0x77, 0x0C, 0xE0, 0xFA, 0x7F, 0x2E, 0x4B, 0x13, 0x44, 0xBB, 0x61,
    0xBB, 0x69, 0xFA, 0x7F, 0x39, 0x68, 0x0A, 0x44, 0x12, 0x78, 0x1A, 0x70, 0xFB, 0x7F, 0x01, 0x33,
    0xFB, 0x77, 0xFB, 0x7F, 0x03, 0x2B, 0xEF, 0xD9, 0x00, 0x23, 0xFB, 0x82, 0x24, 0x4A, 0x24, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x63, 0xF0, 0x7F, 0x03, 0xDB, 0xB2, 0x13, 0x70, 0x07, 0xE0, 0xFB, 0x68,
    0x9B, 0x69, 0xB3, 0xF1, 0xFF, 0x3F, 0x02, 0xD0, 0xFB, 0x68, 0x9B, 0x69, 0x98, 0x47, 0x1C, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0xF1, 0xDA, 0x19, 0x4B, 0x1B, 0x78, 0xDB, 0xB2,
    0x03, 0xF0, 0x71, 0x03, 0x00, 0x2B, 0x01, 0xD0, 0x01, 0x23, 0xFB, 0x82, 0xFB, 0x8A, 0x00, 0x2B,
    0x11, 0xD0, 0xBB, 0x68, 0xB3, 0xF5, 0x00, 0x0F, 0x07, 0xD3, 0xBA, 0x68, 0x7B, 0x6A, 0x13, 0x44,
    0xA3, 0xF5, 0x00, 0x02, 0x3B, 0x6B, 0x1A, 0x60, 0x0E, 0xE0, 0xBA, 0x68, 0x7B, 0x6A, 0x1A, 0x44,
    0x3B, 0x6B, 0x1A, 0x60, 0x08, 0xE0, 0x3B, 0x6A, 0x04, 0x3B, 0x3B, 0x62, 0x3B, 0x68, 0x04, 0x33,
    0x3B, 0x60, 0xBB, 0x68, 0x04, 0x33, 0xBB, 0x60, 0x3B, 0x6A, 0x00, 0x2B, 0x02, 0xD0, 0xFB, 0x8A,
    0x00, 0x2B, 0x85, 0xD0, 0xFB, 0x8A, 0x18, 0x46, 0x28, 0x37, 0xBD, 0x46, 0x80, 0xBD, 0x00, 0xBF,
    0x00, 0x00, 0x02, 0x40, 0x0C, 0x00, 0x02, 0x40
};

结构体数组 gs_FlashDriverAPI 的内部成员变量（这里都是函数指针）的排列顺序需要与 Bootloader 工程内的数组一一对应，并且该数组后面跟了 NVM_DRIVER_SECTION ，会将此数组放在 m_NVM_Driver 区域内，另外，因为次数组会和 Flash 操作函数一起放到 m_NVM_Driver 区域内，所以必须保证本数组放在那些函数的前面，这我在 README.md 当中也有截图说明。

/* TODO S32K_FlashDrv: #02 本偏移量需与 .ld 链接文件中的 m_NVM_Driver 起始地址保持一致 */
#define FLASH_DRV_OFFSET    (0x10000u)
#define CAL_OFFSET(funcPtr) ((uint32_t)(funcPtr) - FLASH_DRV_OFFSET)

CAL_OFFSET 这个宏是用于计算相对地址偏移量的，在这里，会将对应函数的地址减去 0x10000 后作为各函数指针的初值存储于数组内。为何要减去 0x10000 ？，因为 Flash Driver 最终是加载到 Bootloader 中预留的 RAM 空间地址运行的，起始地址不一样，所以 Flash Driver UDS_S32K144_FlashDriverExtracted.hex 在下载到 Bootloader 的 RAM 0x1FFF8000 处之后，需要将开头的 4 个 32位地址偏移量分别再加上 0x1FFF8000，这样，就得到了 4 个函数在 Bootloader 的 RAM 中的真实地址，之后，就可以在 Bootloader 中通过函数指针的方式进行调用。相关计算函数位于 Bootloader 的 flash.c，函数名：void InitFlashAPI(void)，在此我也贴出该函数内容：

/* Init falsh g_stFlashOptInfo pointer */
void InitFlashAPI(void)
{
    //caculate offset
    uint32_t *tmp = NULL;
    uint32_t flashDriverStartAdd = 0;
    uint32_t flashDriverEndAdd = 0;

    FLASH_HAL_GetFlashDriverInfo(&flashDriverStartAdd, &flashDriverEndAdd);
    tmp = (uint32 *)flashDriverStartAdd;

    for (uint32_t i = 0; i < sizeof(tFlashOptInfo) / 4; i++) {
        /* XXX Bootloader: #01 此处 tmp[i] 用来给 Flash Driver 头部的函数偏移量偏移到目前 Bootloader 中实际的 RAM 地址
         * 官方 Bootloader 例程配合官方编译好的 12 个 Flash Driver 函数，为何要减去（向左偏移） 0x410 原因不明，
         * 自己编译出的 4 个 Flash Driver 函数不需要减 0x410
         */
        //        tmp[i] -= 0x410;
        tmp[i] += (uint32_t) flashDriverStartAdd;
    }

    g_pstFlashOptInfo = (tFlashOptInfo *)flashDriverStartAdd;

    /* Disable cache to ensure that all flash operations will take effect instantly,
       this is device dependent */
#ifdef S32K144_SERIES
    //  MSCM->OCMDR[0u] |= MSCM_OCMDR_OCM1(0xFu);
    //  MSCM->OCMDR[1u] |= MSCM_OCMDR_OCM1(0xFu);
    //  MSCM->OCMDR[2u] |= MSCM_OCMDR_OCM1(0xFu);
#endif /* S32K144_SERIES */
}

从以上数组可以看到 4 个函数的相对偏移量：

0x11, 0x00, 0x00, 0x00, 0x49, 0x01, 0x00, 0x00, 0x65, 0x02, 0x00, 0x00, 0xB1, 0x03, 0x00, 0x00,

// 对应的函数相对偏移量为：
// FLASH_DRV_EraseSector          0x00000011
// FLASH_DRV_VerifySection        0x00000149
// FLASH_DRV_Program              0x00000265
// FLASH_DRV_ProgramCheck         0x000003B1

在 Bootloader 中经过计算，该部分内容会变成：

0x11, 0x80, 0xFF, 0x1F, 0x49, 0x81, 0xFF, 0x1F, 0x65, 0x82, 0xFF, 0x1F, 0xB1, 0x83, 0xFF, 0x1F,

// 对应的函数相对偏移量为：
// FLASH_DRV_EraseSector          0x1FFF8011
// FLASH_DRV_VerifySection        0x1FFF8149
// FLASH_DRV_Program              0x1FFF8265
// FLASH_DRV_ProgramCheck         0x1FFF83B1

即，最后，存储于 Bootloader RAM 中 0x1FFF8000 处的数据变成了如下情况：

uint8_t g_flashDriverRAM[] = {
    0x11, 0x80, 0xFF, 0x1F, 0x49, 0x81, 0xFF, 0x1F, 0x65, 0x82, 0xFF, 0x1F, 0xB1, 0x83, 0xFF, 0x1F,
    0x80, 0xB5, 0x88, 0xB0, 0x00, 0xAF, 0xF8, 0x60, 0xB9, 0x60, 0x7A, 0x60, 0x00, 0x23, 0x7B, 0x82,
    0x7B, 0x68, 0xBB, 0x61, 0xFB, 0x68, 0x9B, 0x68, 0x7B, 0x61, 0xBA, 0x68, 0x7B, 0x69, 0x9A, 0x42,
    0x10, 0xD3, 0xFB, 0x68, 0xDA, 0x68, 0x7B, 0x69, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x09, 0xD9,
    0xBA, 0x68, 0x7B, 0x69, 0xD3, 0x1A, 0x03, 0xF5, 0x00, 0x03, 0xBB, 0x60, 0x4F, 0xF4, 0x00, 0x63,
    0xFB, 0x61, 0x1B, 0xE0, 0xFB, 0x68, 0x1B, 0x68, 0x7B, 0x61, 0xBA, 0x68, 0x7B, 0x69, 0x9A, 0x42,
    0x0E, 0xD3, 0xFB, 0x68, 0x5A, 0x68, 0x7B, 0x69, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x07, 0xD9,
    0xBA, 0x68, 0x7B, 0x69, 0xD3, 0x1A, 0xBB, 0x60, 0x4F, 0xF4, 0x80, 0x53, 0xFB, 0x61, 0x05, 0xE0,
    0x01, 0x23, 0x7B, 0x82, 0x00, 0x23, 0xBB, 0x61, 0x00, 0x23, 0xFB, 0x61, 0xFB, 0x69, 0x5A, 0x1E,
    0xBB, 0x69, 0x13, 0x40, 0x00, 0x2B, 0x49, 0xD0, 0x01, 0x23, 0x7B, 0x82, 0x46, 0xE0, 0x29, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0x02, 0xDB, 0x02, 0x23, 0x7B, 0x82, 0x3D, 0xE0,
    0x24, 0x4B, 0x70, 0x22, 0x1A, 0x70, 0x23, 0x4B, 0x09, 0x22, 0xDA, 0x71, 0x21, 0x4A, 0xBB, 0x68,
    0x1B, 0x0C, 0xDB, 0xB2, 0x93, 0x71, 0x1F, 0x4A, 0xBB, 0x68, 0x1B, 0x0A, 0xDB, 0xB2, 0x53, 0x71,
    0x1C, 0x4B, 0xBA, 0x68, 0xD2, 0xB2, 0x1A, 0x71, 0x00, 0x23, 0x7B, 0x82, 0x19, 0x4A, 0x19, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x63, 0xF0, 0x7F, 0x03, 0xDB, 0xB2, 0x13, 0x70, 0x07, 0xE0, 0xFB, 0x68,
    0x9B, 0x69, 0xB3, 0xF1, 0xFF, 0x3F, 0x02, 0xD0, 0xFB, 0x68, 0x9B, 0x69, 0x98, 0x47, 0x11, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0xF1, 0xDA, 0x0E, 0x4B, 0x1B, 0x78, 0xDB, 0xB2,
    0x03, 0xF0, 0x71, 0x03, 0x00, 0x2B, 0x01, 0xD0, 0x01, 0x23, 0x7B, 0x82, 0xBA, 0x69, 0xFB, 0x69,
    0xD3, 0x1A, 0xBB, 0x61, 0xBA, 0x68, 0xFB, 0x69, 0x13, 0x44, 0xBB, 0x60, 0xBB, 0x69, 0x00, 0x2B,
    0x02, 0xD0, 0x7B, 0x8A, 0x00, 0x2B, 0xB2, 0xD0, 0x7B, 0x8A, 0x18, 0x46, 0x20, 0x37, 0xBD, 0x46,
    0x80, 0xBD, 0x00, 0xBF, 0x00, 0x00, 0x02, 0x40, 0x80, 0xB5, 0x86, 0xB0, 0x00, 0xAF, 0xF8, 0x60,
    0xB9, 0x60, 0x11, 0x46, 0x1A, 0x46, 0x0B, 0x46, 0xFB, 0x80, 0x13, 0x46, 0x7B, 0x71, 0x00, 0x23,
    0x7B, 0x82, 0xFB, 0x68, 0x9B, 0x68, 0x7B, 0x61, 0xBA, 0x68, 0x7B, 0x69, 0x9A, 0x42, 0x0D, 0xD3,
    0xFB, 0x68, 0xDA, 0x68, 0x7B, 0x69, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x06, 0xD9, 0xBA, 0x68,
    0x7B, 0x69, 0xD3, 0x1A, 0x03, 0xF5, 0x00, 0x03, 0xBB, 0x60, 0x14, 0xE0, 0xFB, 0x68, 0x1B, 0x68,
    0x7B, 0x61, 0xBA, 0x68, 0x7B, 0x69, 0x9A, 0x42, 0x0B, 0xD3, 0xFB, 0x68, 0x5A, 0x68, 0x7B, 0x69,
    0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x04, 0xD9, 0xBA, 0x68, 0x7B, 0x69, 0xD3, 0x1A, 0xBB, 0x60,
    0x01, 0xE0, 0x01, 0x23, 0x7B, 0x82, 0x7B, 0x8A, 0x00, 0x2B, 0x4B, 0xD1, 0x28, 0x4B, 0x1B, 0x78,
    0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0x02, 0xDB, 0x02, 0x23, 0x7B, 0x82, 0x42, 0xE0, 0x24, 0x4B,
    0x70, 0x22, 0x1A, 0x70, 0x22, 0x4B, 0x01, 0x22, 0xDA, 0x71, 0x21, 0x4A, 0xBB, 0x68, 0x1B, 0x0C,
    0xDB, 0xB2, 0x93, 0x71, 0x1E, 0x4A, 0xBB, 0x68, 0x1B, 0x0A, 0xDB, 0xB2, 0x53, 0x71, 0x1C, 0x4B,
    0xBA, 0x68, 0xD2, 0xB2, 0x1A, 0x71, 0x1A, 0x4A, 0xFB, 0x88, 0x1B, 0x0A, 0x9B, 0xB2, 0xDB, 0xB2,
    0xD3, 0x72, 0x17, 0x4B, 0xFA, 0x88, 0xD2, 0xB2, 0x9A, 0x72, 0x15, 0x4A, 0x7B, 0x79, 0x53, 0x72,
    0x00, 0x23, 0x7B, 0x82, 0x12, 0x4A, 0x12, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x63, 0xF0, 0x7F, 0x03,
    0xDB, 0xB2, 0x13, 0x70, 0x07, 0xE0, 0xFB, 0x68, 0x9B, 0x69, 0xB3, 0xF1, 0xFF, 0x3F, 0x02, 0xD0,
    0xFB, 0x68, 0x9B, 0x69, 0x98, 0x47, 0x0A, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B,
    0xF1, 0xDA, 0x07, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x03, 0xF0, 0x71, 0x03, 0x00, 0x2B, 0x01, 0xD0,
    0x01, 0x23, 0x7B, 0x82, 0x7B, 0x8A, 0x18, 0x46, 0x18, 0x37, 0xBD, 0x46, 0x80, 0xBD, 0x00, 0xBF,
    0x00, 0x00, 0x02, 0x40, 0x80, 0xB5, 0x88, 0xB0, 0x00, 0xAF, 0xF8, 0x60, 0xB9, 0x60, 0x7A, 0x60,
    0x3B, 0x60, 0x00, 0x23, 0xFB, 0x82, 0x7B, 0x68, 0x03, 0xF0, 0x07, 0x03, 0x00, 0x2B, 0x02, 0xD0,
    0x01, 0x23, 0xFB, 0x82, 0x8B, 0xE0, 0xFB, 0x68, 0x9B, 0x68, 0xBB, 0x61, 0xBA, 0x68, 0xBB, 0x69,
    0x9A, 0x42, 0x0D, 0xD3, 0xFB, 0x68, 0xDA, 0x68, 0xBB, 0x69, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42,
    0x06, 0xD9, 0xBA, 0x68, 0xBB, 0x69, 0xD3, 0x1A, 0x03, 0xF5, 0x00, 0x03, 0xBB, 0x60, 0x14, 0xE0,
    0xFB, 0x68, 0x1B, 0x68, 0xBB, 0x61, 0xBA, 0x68, 0xBB, 0x69, 0x9A, 0x42, 0x0B, 0xD3, 0xFB, 0x68,
    0x5A, 0x68, 0xBB, 0x69, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x04, 0xD9, 0xBA, 0x68, 0xBB, 0x69,
    0xD3, 0x1A, 0xBB, 0x60, 0x01, 0xE0, 0x01, 0x23, 0xFB, 0x82, 0x5A, 0xE0, 0x32, 0x4B, 0x1B, 0x78,
    0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0x02, 0xDB, 0x02, 0x23, 0xFB, 0x82, 0x51, 0xE0, 0x2E, 0x4B,
    0x70, 0x22, 0x1A, 0x70, 0x2C, 0x4B, 0x07, 0x22, 0xDA, 0x71, 0x2B, 0x4A, 0xBB, 0x68, 0x1B, 0x0C,
    0xDB, 0xB2, 0x93, 0x71, 0x28, 0x4A, 0xBB, 0x68, 0x1B, 0x0A, 0xDB, 0xB2, 0x53, 0x71, 0x26, 0x4B,
    0xBA, 0x68, 0xD2, 0xB2, 0x1A, 0x71, 0x00, 0x23, 0xFB, 0x77, 0x0C, 0xE0, 0xFA, 0x7F, 0x23, 0x4B,
    0x13, 0x44, 0xBB, 0x61, 0xBB, 0x69, 0xFA, 0x7F, 0x39, 0x68, 0x0A, 0x44, 0x12, 0x78, 0x1A, 0x70,
    0xFB, 0x7F, 0x01, 0x33, 0xFB, 0x77, 0xFB, 0x7F, 0x07, 0x2B, 0xEF, 0xD9, 0x00, 0x23, 0xFB, 0x82,
    0x19, 0x4A, 0x19, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x63, 0xF0, 0x7F, 0x03, 0xDB, 0xB2, 0x13, 0x70,
    0x07, 0xE0, 0xFB, 0x68, 0x9B, 0x69, 0xB3, 0xF1, 0xFF, 0x3F, 0x02, 0xD0, 0xFB, 0x68, 0x9B, 0x69,
    0x98, 0x47, 0x11, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0xF1, 0xDA, 0x0E, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x03, 0xF0, 0x71, 0x03, 0x00, 0x2B, 0x01, 0xD0, 0x01, 0x23, 0xFB, 0x82,
    0xBB, 0x68, 0x08, 0x33, 0xBB, 0x60, 0x7B, 0x68, 0x08, 0x3B, 0x7B, 0x60, 0x3B, 0x68, 0x08, 0x33,
    0x3B, 0x60, 0x7B, 0x68, 0x00, 0x2B, 0x02, 0xD0, 0xFB, 0x8A, 0x00, 0x2B, 0x9E, 0xD0, 0xFB, 0x8A,
    0x18, 0x46, 0x20, 0x37, 0xBD, 0x46, 0x80, 0xBD, 0x00, 0x00, 0x02, 0x40, 0x08, 0x00, 0x02, 0x40,
    0x80, 0xB5, 0x8A, 0xB0, 0x00, 0xAF, 0xF8, 0x60, 0xB9, 0x60, 0x7A, 0x60, 0x3B, 0x60, 0x00, 0x23,
    0xFB, 0x82, 0x7B, 0x68, 0x03, 0xF0, 0x03, 0x03, 0x00, 0x2B, 0x02, 0xD0, 0x01, 0x23, 0xFB, 0x82,
    0xA8, 0xE0, 0x7B, 0x68, 0x3B, 0x62, 0xFB, 0x68, 0x9B, 0x68, 0x7B, 0x62, 0xBA, 0x68, 0x7B, 0x6A,
    0x9A, 0x42, 0x0D, 0xD3, 0xFB, 0x68, 0xDA, 0x68, 0x7B, 0x6A, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42,
    0x06, 0xD9, 0xBA, 0x68, 0x7B, 0x6A, 0xD3, 0x1A, 0x03, 0xF5, 0x00, 0x03, 0xBB, 0x60, 0x16, 0xE0,
    0xFB, 0x68, 0x1B, 0x68, 0x7B, 0x62, 0xBA, 0x68, 0x7B, 0x6A, 0x9A, 0x42, 0x0B, 0xD3, 0xFB, 0x68,
    0x5A, 0x68, 0x7B, 0x6A, 0x1A, 0x44, 0xBB, 0x68, 0x9A, 0x42, 0x04, 0xD9, 0xBA, 0x68, 0x7B, 0x6A,
    0xD3, 0x1A, 0xBB, 0x60, 0x03, 0xE0, 0x01, 0x23, 0xFB, 0x82, 0x00, 0x23, 0x3B, 0x62, 0x73, 0xE0,
    0x3F, 0x4B, 0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0x02, 0xDB, 0x02, 0x23, 0xFB, 0x82,
    0x6A, 0xE0, 0x3B, 0x4B, 0x70, 0x22, 0x1A, 0x70, 0x39, 0x4B, 0x02, 0x22, 0xDA, 0x71, 0x38, 0x4A,
    0xBB, 0x68, 0x1B, 0x0C, 0xDB, 0xB2, 0x93, 0x71, 0x35, 0x4A, 0xBB, 0x68, 0x1B, 0x0A, 0xDB, 0xB2,
    0x53, 0x71, 0x33, 0x4B, 0xBA, 0x68, 0xD2, 0xB2, 0x1A, 0x71, 0x31, 0x4A, 0x97, 0xF8, 0x34, 0x30,
    0xD3, 0x72, 0x00, 0x23, 0xFB, 0x77, 0x0C, 0xE0, 0xFA, 0x7F, 0x2E, 0x4B, 0x13, 0x44, 0xBB, 0x61,
    0xBB, 0x69, 0xFA, 0x7F, 0x39, 0x68, 0x0A, 0x44, 0x12, 0x78, 0x1A, 0x70, 0xFB, 0x7F, 0x01, 0x33,
    0xFB, 0x77, 0xFB, 0x7F, 0x03, 0x2B, 0xEF, 0xD9, 0x00, 0x23, 0xFB, 0x82, 0x24, 0x4A, 0x24, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x63, 0xF0, 0x7F, 0x03, 0xDB, 0xB2, 0x13, 0x70, 0x07, 0xE0, 0xFB, 0x68,
    0x9B, 0x69, 0xB3, 0xF1, 0xFF, 0x3F, 0x02, 0xD0, 0xFB, 0x68, 0x9B, 0x69, 0x98, 0x47, 0x1C, 0x4B,
    0x1B, 0x78, 0xDB, 0xB2, 0x5B, 0xB2, 0x00, 0x2B, 0xF1, 0xDA, 0x19, 0x4B, 0x1B, 0x78, 0xDB, 0xB2,
    0x03, 0xF0, 0x71, 0x03, 0x00, 0x2B, 0x01, 0xD0, 0x01, 0x23, 0xFB, 0x82, 0xFB, 0x8A, 0x00, 0x2B,
    0x11, 0xD0, 0xBB, 0x68, 0xB3, 0xF5, 0x00, 0x0F, 0x07, 0xD3, 0xBA, 0x68, 0x7B, 0x6A, 0x13, 0x44,
    0xA3, 0xF5, 0x00, 0x02, 0x3B, 0x6B, 0x1A, 0x60, 0x0E, 0xE0, 0xBA, 0x68, 0x7B, 0x6A, 0x1A, 0x44,
    0x3B, 0x6B, 0x1A, 0x60, 0x08, 0xE0, 0x3B, 0x6A, 0x04, 0x3B, 0x3B, 0x62, 0x3B, 0x68, 0x04, 0x33,
    0x3B, 0x60, 0xBB, 0x68, 0x04, 0x33, 0xBB, 0x60, 0x3B, 0x6A, 0x00, 0x2B, 0x02, 0xD0, 0xFB, 0x8A,
    0x00, 0x2B, 0x85, 0xD0, 0xFB, 0x8A, 0x18, 0x46, 0x28, 0x37, 0xBD, 0x46, 0x80, 0xBD, 0x00, 0xBF,
    0x00, 0x00, 0x02, 0x40, 0x0C, 0x00, 0x02, 0x40
};

另外，本工程的 flash_driver.h 和 flash_driver.c 是进行了更改的，请自行观察。

flash_driver.h
flash_driver.c

另外，flash_driver.h 中的宏开关可用于验证本工程的 Flash Driver 操作函数是否有效、工作正常。

#define EN_FLASH_DRIVER_DEBUG

除了你的问题，也有其它人提出了与 Flash Driver 相关的 Issue，位于另一个工程，我在此引用过来，如有需要，可以查看了解：

Flash的操作函数 #1 @zangege @wwwying9

@SummerFalls SummerFalls pinned this issue May 9, 2021
@SummerFalls SummerFalls self-assigned this May 9, 2021
@SummerFalls SummerFalls added good first issue Good for newcomers question Further information is requested labels May 9, 2021
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zangege commented May 11, 2021

大概明白了，我自己再理一下，谢谢大佬！

@zangege zangege closed this as completed May 11, 2021
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