Question

我试图弄清楚如何通过QuadSPI创建内存映射的FLASH。我正在将STM32L4S9ZI MCU与Winbond W25Q32JVSSIQ QuadSPI存储器配合使用。

MCU特别支持OctoSPI而不是QuadSPI。但是在参考手册中写到，该特定MCU的OctoSPI可以在QuadSPI模式下使用。

我已经尝试将相同的MCU与OctoSPI Flash存储器一起使用，并且一切正常。但是，使用QuadSPI根本无法正常工作。问题是每次我发送命令时，都不会收到任何响应。我已经尝试过使用示波器，但是信号看起来很奇怪（IO1，IO2，CLK和CS上的周期脉冲一直很低）。现在，我只是想读取闪存芯片的制造商ID，仅此而已。我在OctoSPI flash中使用了相同的代码，并且可以正常工作。

void HAL_OSPI_MspInit(OSPI_HandleTypeDef *hospi)
{
    if (hospi->Instance == OCTOSPI1)
    {
        GPIO_InitTypeDef GPIO_InitStruct;
        OSPIM_CfgTypeDef OSPIM_Cfg_Struct;

        /*##-1- Enable peripherals and GPIO Clocks #################################*/
        /* Enable the OctoSPI memory interface clocks */
        __HAL_RCC_OSPI1_CLK_ENABLE();
        __HAL_RCC_OSPIM_CLK_ENABLE();
        /* Reset the OctoSPI memory interface */
        __HAL_RCC_OSPI1_FORCE_RESET();
        __HAL_RCC_OSPI1_RELEASE_RESET();
        /* Enable GPIO clocks */
        /* IOSV bit MUST be set to access GPIO port G[2:15] */
        __HAL_RCC_PWR_CLK_ENABLE();
        SET_BIT(PWR->CR2, PWR_CR2_IOSV);

        __HAL_RCC_GPIOA_CLK_ENABLE();
        __HAL_RCC_GPIOB_CLK_ENABLE();

        /*##-2- Configure peripheral GPIO ##########################################*/
        /* OSPI CS GPIO pin configuration  */
        GPIO_InitStruct.Pin       = GPIO_PIN_2;
        GPIO_InitStruct.Mode      = GPIO_MODE_AF_OD;
        GPIO_InitStruct.Pull      = GPIO_PULLUP;
        GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_VERY_HIGH;
        GPIO_InitStruct.Alternate = GPIO_AF10_OCTOSPIM_P1;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        /* OSPI CLK GPIO pin configuration  */
        GPIO_InitStruct.Pin       = GPIO_PIN_3;
        GPIO_InitStruct.Pull      = GPIO_PULLUP;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        /* OSPI D0 GPIO pin configuration  */
        GPIO_InitStruct.Pin       = GPIO_PIN_1;
        HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

        /* OSPI D1 GPIO pin configuration  */
        GPIO_InitStruct.Pin       = GPIO_PIN_0;
        HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

        /* OSPI D2 GPIO pin configuration  */
        GPIO_InitStruct.Pin       = GPIO_PIN_7;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        /* OSPI D3 GPIO pin configuration  */
        GPIO_InitStruct.Pin       = GPIO_PIN_6;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        /*##-3- Configure the NVIC for OSPI #########################################*/
        /* NVIC configuration for OSPI interrupt */
        HAL_NVIC_SetPriority(OCTOSPI1_IRQn, 0x0F, 0);
        HAL_NVIC_EnableIRQ(OCTOSPI1_IRQn);

        /*##-4- Configure the OctoSPI IO Manager ####################################*/
        OSPIM_Cfg_Struct.ClkPort    = 1;
        OSPIM_Cfg_Struct.IOHighPort = HAL_OSPIM_IOPORT_1_HIGH;
        OSPIM_Cfg_Struct.IOLowPort  = HAL_OSPIM_IOPORT_1_LOW;
        OSPIM_Cfg_Struct.NCSPort    = 1;

        if (HAL_OSPIM_Config(hospi, &OSPIM_Cfg_Struct, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)
        {
            /* User may add here some code to deal with this error */
            while(1)
            {
            }
        }
    }
}

//  /* Initialize OctoSPI ----------------------------------------------------- */
    OSPIHandle.Instance = OCTOSPI1;
    HAL_OSPI_DeInit(&OSPIHandle);

    OSPIHandle.Init.FifoThreshold         = 1;
    OSPIHandle.Init.DualQuad              = HAL_OSPI_DUALQUAD_DISABLE;
    OSPIHandle.Init.MemoryType            = HAL_OSPI_MEMTYPE_MICRON;
    OSPIHandle.Init.DeviceSize            = OSPI_FLASH_SIZE;
    OSPIHandle.Init.ChipSelectHighTime    = 2;
    OSPIHandle.Init.FreeRunningClock      = HAL_OSPI_FREERUNCLK_DISABLE;
    OSPIHandle.Init.ClockMode             = HAL_OSPI_CLOCK_MODE_0;
    OSPIHandle.Init.WrapSize              = HAL_OSPI_WRAP_NOT_SUPPORTED;
    OSPIHandle.Init.ClockPrescaler        = 2; /* OctoSPI clock = 120MHz / ClockPrescaler = 60MHz */
    OSPIHandle.Init.SampleShifting        = HAL_OSPI_SAMPLE_SHIFTING_NONE;
    OSPIHandle.Init.DelayHoldQuarterCycle = HAL_OSPI_DHQC_ENABLE;
    OSPIHandle.Init.ChipSelectBoundary    = 0;

    if (HAL_OSPI_Init(&OSPIHandle) != HAL_OK)
    {
        printf("%s %d\r\n", __FILE__, __LINE__);
        error_handler();
    }
//
//  printf("%s %d\r\n", __FILE__, __LINE__);
//
//  /* Device ID ---- */
      sCommand.OperationType = HAL_OSPI_OPTYPE_COMMON_CFG;
      sCommand.Instruction = 0x94;
      sCommand.InstructionMode = HAL_OSPI_INSTRUCTION_1_LINE;
      sCommand.FlashId = HAL_OSPI_FLASH_ID_1;
      sCommand.InstructionSize = HAL_OSPI_INSTRUCTION_8_BITS;
      sCommand.InstructionDtrMode = HAL_OSPI_INSTRUCTION_DTR_DISABLE;

      sCommand.Address = 0x000000;
      sCommand.AddressMode = HAL_OSPI_ADDRESS_4_LINES;
      sCommand.AddressSize = HAL_OSPI_ADDRESS_24_BITS;
      sCommand.AddressDtrMode = HAL_OSPI_ADDRESS_DTR_DISABLE;

      sCommand.AlternateBytesMode = HAL_OSPI_ALTERNATE_BYTES_4_LINES;
      sCommand.AlternateBytes = 0xF;
      sCommand.AlternateBytesSize = 1;

      sCommand.DataMode = HAL_OSPI_DATA_4_LINES;
      sCommand.DataDtrMode = HAL_OSPI_DATA_DTR_DISABLE;
      sCommand.DummyCycles = 4;
      sCommand.NbData = 2;
      sCommand.DQSMode = HAL_OSPI_DQS_DISABLE;


    uint8_t reg[2];
    printf("%s %d\r\n", __FILE__, __LINE__);
    if (HAL_OSPI_Command(&OSPIHandle, &sCommand, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)
    {
        printf("%s %d\r\n", __FILE__, __LINE__);
        error_handler();
    }
    printf("%s %d\r\n", __FILE__, __LINE__);

    if (HAL_OSPI_Receive(&OSPIHandle, reg, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)
    {
        printf("%s %d error: %d 0x%08x 0x%08x\r\n", __FILE__, __LINE__, OSPIHandle.ErrorCode, reg[0], reg[1]);
        error_handler();
    }
    printf("%s %d\r\n", __FILE__, __LINE__);

我真的希望我能弄清楚OctoSPI设备上QuadSPI存储器的初始化。

您能为QuadSPI外设的OctoSPI初始化提供帮助吗？我有什么想念的吗？谢谢

stm32l4s9zi上的QuadSPI Flash映射内存

0 个答案: