Using DCMI Interface but only receiving 0xA603A603 before hard fault - c

Question

For my master thesis I am trying to receive data over DCMI with the STM32H742. As an image sensor I am using the NOIV2SN1300A. It sends data over 10 data lines, this data differs (so not always 0xA603A603). To reduce data size I have activated binning and subsampling.
I am using DMA to transfer the data received by DCMI into the internal SRAM at address 0x24000000. After a few telegrams (of 0xA603A603) the uC goes into hard fault and infinite loop. I am not sure why this error occurs. Here is my config for DMA and DCMI:
/* DCMI DMA Init */
/* DCMI Init */
hdma_dcmi.Instance = DMA1_Stream0;
hdma_dcmi.Init.Request = DMA_REQUEST_DCMI;
hdma_dcmi.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_dcmi.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_dcmi.Init.MemInc = DMA_MINC_ENABLE;
hdma_dcmi.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;//WORD;
hdma_dcmi.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
hdma_dcmi.Init.Mode = DMA_DOUBLE_BUFFER_M0;
hdma_dcmi.Init.Priority = DMA_PRIORITY_VERY_HIGH;
hdma_dcmi.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_dcmi.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_dcmi.Init.MemBurst = DMA_MBURST_SINGLE;
//hdma_dcmi.Init.PeriphBurst = DMA_PBURST_SINGLE;
if (HAL_DMA_Init(&hdma_dcmi) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(hdcmi,DMA_Handle,hdma_dcmi);
HAL_NVIC_SetPriority(DCMI_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DCMI_IRQn);
HAL_NVIC_SetPriority(DMA1_Stream0_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA1_Stream0_IRQn);
hdcmi.Instance = DCMI;
hdcmi.Init.SynchroMode = DCMI_SYNCHRO_HARDWARE;
hdcmi.Init.PCKPolarity = DCMI_PCKPOLARITY_FALLING; //Todo:???
hdcmi.Init.VSPolarity = DCMI_VSPOLARITY_HIGH;
hdcmi.Init.HSPolarity = DCMI_HSPOLARITY_HIGH;
hdcmi.Init.CaptureRate = DCMI_CR_ALL_FRAME;
hdcmi.Init.ExtendedDataMode = DCMI_EXTEND_DATA_10B;
hdcmi.Init.JPEGMode = DCMI_JPEG_DISABLE;
hdcmi.Init.ByteSelectMode = DCMI_BSM_OTHER;//DCMI_BSM_ALL;
hdcmi.Init.ByteSelectStart = DCMI_OEBS_ODD;
hdcmi.Init.LineSelectMode = DCMI_LSM_ALL;
hdcmi.Init.LineSelectStart = DCMI_OELS_ODD;
if (HAL_DCMI_Init(&hdcmi) != HAL_OK)
{
Error_Handler();
}
uint32_t DataSizeImageSensor = 0xB160;
DMA_BUFFER uint32_t AddressFrameBuffer[0xB160];
HAL_DCMI_Start_DMA(&hdcmi, DCMI_MODE_SNAPSHOT, (uint32_t)AddressFrameBuffer, DataSizeImageSensor);
void MPU_Config (void)
{
MPU_Region_InitTypeDef MPU_InitStruct;
/* Disable the MPU */
HAL_MPU_Disable();
/* Configure the MPU attributes for SDRAM */
MPU_InitStruct.Enable = MPU_REGION_ENABLE;
MPU_InitStruct.BaseAddress = 0x24000000;
MPU_InitStruct.Size = MPU_REGION_SIZE_512KB;
MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;
MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;
MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE; //Cache is incoherent with CPU for DMA usage
MPU_InitStruct.IsShareable = MPU_ACCESS_NOT_SHAREABLE;
MPU_InitStruct.Number = MPU_REGION_NUMBER0;
MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL1;
MPU_InitStruct.SubRegionDisable = 0x00;
MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;
HAL_MPU_ConfigRegion(&MPU_InitStruct);
/* Enable the MPU */
HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
}
Any idea why this error occurs? Like I said, I receive data, I am sure the sensor sends viable data (so something else then 0xA603A603), but I get only the same data by DCMI before hard fault. At this current setup I transfer 64 telegrams, then the hard fault occurs. Furthermore I disabled the cache for the SRAM1, as there are problems regarding cache/DMA/CPU coherence. I am not quite sure how to proceed, as it looks to me like it is a setup error. Maybe an overrun by DCMI?
Note: The code above doesn't actually occur in this order. That are just the relevant parts (at least from what I expect to be relevant).
I found other posts about this problem, where the error was a slow system clock. As my system clock is 475 MHz and the HCLK3 Clock (which is used by DCMI for sampling) is 237.5 MHz I can rule out a Clock problem. The datasheet says the HCLK Clock has to be 2.5 times faster then DCMI Clock (which is set by the image sensor with 62 Mhz).