STM32H750 QSPI FLASH 映射问题请教

憨客鱼提问时间：2021-10-31 09:00 / 未解决

问答
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我想用QSPI FLASH 作OTA,选用的是W25Q64，现在对QSPI的读写都正常，但是把QSPI 映射成内存模式，一对 0x9000000UL 进行读，就进入HardFault_Handler，下面是我配置映射的代码，哪位大侠能帮看看有什么问题没有我芯片是用的STM32H750VB 用的STM32CUBE

static unsigned int QSPI_EnableMemoryMappedMode(QSPI_HandleTypeDef *QSPIHandle)
{
  QSPI_CommandTypeDef    s_command;
  QSPI_MemoryMappedTypeDef s_mem_mapped_cfg;

  // Configure the command for the read instruction
  s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE;
  s_command.Instruction    = QUAD_INOUT_FAST_READ_CMD;
s_command.Address          = 0;
  s_command.AddressMode    = QSPI_ADDRESS_4_LINES;
  s_command.AddressSize    = QSPI_ADDRESS_24_BITS;
s_command.AlternateBytes                = 0x00;
  s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE;
s_command.AlternateBytesSize = QSPI_ALTERNATE_BYTES_8_BITS;
  s_command.DataMode       = QSPI_DATA_4_LINES;
s_command.NbData          = 1; //???????
  s_command.DummyCycles    = 6;
  s_command.DdrMode          = QSPI_DDR_MODE_DISABLE;
  s_command.DdrHoldHalfCycle  = QSPI_DDR_HHC_ANALOG_DELAY;
  s_command.SIOOMode       = QSPI_SIOO_INST_EVERY_CMD;

  // Configure the memory mapped mode
  s_mem_mapped_cfg.TimeOutActivation = QSPI_TIMEOUT_COUNTER_DISABLE;
  s_mem_mapped_cfg.TimeOutPeriod    = 0;

  return HAL_QSPI_MemoryMapped(QSPIHandle, &s_command, &s_mem_mapped_cfg);
}
*/
static unsigned int QSPI_EnableMemoryMappedMode(QSPI_HandleTypeDef *QSPIHandle)
{
  QSPI_CommandTypeDef    s_command;
  QSPI_MemoryMappedTypeDef s_mem_mapped_cfg;

  // Configure the command for the read instruction
  s_command.InstructionMode = QSPI_INSTRUCTION_4_LINES;
  s_command.Instruction    = QUAD_INOUT_FAST_READ_CMD;
s_command.Address          = 0;
  s_command.AddressMode    = QSPI_ADDRESS_4_LINES;
  s_command.AddressSize    = QSPI_ADDRESS_32_BITS; //  24 32 都试过
s_command.AlternateBytes                = 0x00;
  s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE;
s_command.AlternateBytesSize = QSPI_ALTERNATE_BYTES_8_BITS;
  s_command.DataMode       = QSPI_DATA_4_LINES;
s_command.NbData          = 1; //???????
  s_command.DummyCycles    = 6;
  s_command.DdrMode          = QSPI_DDR_MODE_DISABLE;
  s_command.DdrHoldHalfCycle  = QSPI_DDR_HHC_ANALOG_DELAY;
  s_command.SIOOMode       = QSPI_SIOO_INST_EVERY_CMD;

  // Configure the memory mapped mode
  s_mem_mapped_cfg.TimeOutActivation = QSPI_TIMEOUT_COUNTER_DISABLE;
  s_mem_mapped_cfg.TimeOutPeriod    = 0;

  return HAL_QSPI_MemoryMapped(QSPIHandle, &s_command, &s_mem_mapped_cfg);
}

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5个回答

STMCU-管管回答时间：2021-11-1 13:45:10

最近分享了跟多STM32H735的经验分享，可以参考参考

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憨客鱼回答时间：2021-11-2 20:40:28

STMCU-管管发表于 2021-11-1 13:45
最近分享了跟多STM32H735的经验分享，可以参考参考

麻烦给个连接，我学习一下啊

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STMCU-管管回答时间：2021-11-5 17:37:15

憨客鱼发表于 2021-11-2 20:40
麻烦给个连接，我学习一下啊

链接在这里，查看

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憨客鱼回答时间：2021-11-6 15:56:48

STMCU-管管发表于 2021-11-5 17:37
链接在这里，[查看](<a href="https://https://shequ.stmicroelectronics.cn/home.php?mod=space&amp;uid=13573447">https://https://shequ.stmicroelectronics.cn/home.php?mod=space&amp;uid=13573447</a> ...

[md]连接打不开啊