STM32H735多路复用内存映射OSPI Hyperram硬故障问题如何解决？

嗨，我在多路复用模式下使用 OCTOSPI1 和 OCTOSPI2 以在内存映射模式下连接两个 S27KL0641 ram。
这些 Rams 用于 LTDC 帧缓冲区和其他应用程序数据（结构、数据......）。
我从 cubeMX 的 STM32Cube_FW_H7_V1.9.0DriversBSPComponentss70kl1281 和 STM32Cube_FW_H7_V1.9.0DriversBSPSTM32H735G-DK 开始初始化 OSPI，我更改了引脚影响，添加了 HAL_OSPIM_Config 并启用了 IoManager 时钟。
应用程序正常启动，但几分钟后进入 Hardfault。
根据 MPU initilization，问题发生得更快。
这是我的 MPU 配置
//ospi2数据
MPU_InitStruct.Enable = MPU_REGION_ENABLE;
MPU_InitStruct.BaseAddress = OCTOSPI2_BASE;
MPU_InitStruct.Size = MPU_REGION_SIZE_8MB;
MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;
MPU_InitStruct.IsBufferable = MPU_ACCESS_BUFFERABLE;
MPU_InitStruct.IsCacheable = MPU_ACCESS_CACHEABLE;
MPU_InitStruct.IsShareable = MPU_ACCESS_NOT_SHAREABLE;
MPU_InitStruct.Number = MPU_REGION_NUMBER0;
MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
MPU_InitStruct.SubRegionDisable = 0x00;
MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_ENABLE;
HAL_MPU_ConfigRegion(&MPU_InitStruct);
//ospi 1数据
MPU_InitStruct.Enable = MPU_REGION_ENABLE;
MPU_InitStruct.BaseAddress = OCTOSPI1_BASE;
MPU_InitStruct.Size = MPU_REGION_SIZE_8MB;
MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;
MPU_InitStruct.IsBufferable = MPU_ACCESS_BUFFERABLE;
MPU_InitStruct.IsCacheable = MPU_ACCESS_CACHEABLE;
MPU_InitStruct.IsShareable = MPU_ACCESS_NOT_SHAREABLE;
MPU_InitStruct.Number = MPU_REGION_NUMBER1;
MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
MPU_InitStruct.SubRegionDisable = 0x00;
MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;
HAL_MPU_ConfigRegion(&MPU_InitStruct);  
  
//octospi1 帧增益，大小 = 0x200000
MPU_InitStruct.Enable = MPU_REGION_ENABLE;
MPU_InitStruct.BaseAddress = OCTOSPI1_BASE;
MPU_InitStruct.Size = MPU_REGION_SIZE_8MB;
MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;
MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;
MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
MPU_InitStruct.IsShareable = MPU_ACCESS_NOT_SHAREABLE;
MPU_InitStruct.Number = MPU_REGION_NUMBER2;
MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL1;
MPU_InitStruct.SubRegionDisable = ~0x03;
MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;
HAL_MPU_ConfigRegion(&MPU_InitStruct);
这是Ram参数
        hospi->Init.DualQuad = HAL_OSPI_DUALQUAD_DISABLE;
        hospi->Init.MemoryType = HAL_OSPI_MEMTYPE_HYPERBUS;
        hospi->Init.DeviceSize = Init->MemorySize;
        hospi->Init.FreeRunningClock = HAL_OSPI_FREERUNCLK_DISABLE;
        hospi->Init.ClockMode = HAL_OSPI_CLOCK_MODE_0;
        hospi->Init.WrapSize = HAL_OSPI_WRAP_128_BYTES;
        hospi->Init.SampleShifting = Init->SampleShifting;
        hospi->Init.DelayHoldQuarterCycle = HAL_OSPI_DHQC_ENABLE;  
        hospi->Init.ChipSelectBoundary = 23; /* 内存管芯边界 2^23=8MBs*/
        hospi->Init.Refresh = 275; //250; /*4us @100MHz*/
        hospi->Init.FifoThreshold = 1;        
        hospi->Init.ChipSelectHighTime = 20;        
        hospi->Init.ClockPrescaler = 4; //从275Mhz开始计时        
         ospi_ram_init.LatencyType = BSP_OSPI_RAM_FIXED_LATENCY;
         ospi_ram_init.BurstType = BSP_OSPI_RAM_LINEAR_BURST;
         ospi_ram_init.BurstLength = BSP_OSPI_RAM_BURST_32_BYTES;
你能告诉我我的代码中是否有错误可能导致此问题吗？提前致谢