RTC not working correctly with octoSPI(stm32h723)

[Mtopa.1]

Hello everybody.

I want to ask a question about a project. In my project, when octoSPI and RTC work together, an error occurs (counting incorrectly) in RTC's counting and it starts to count slower, but when I turn off octoSPI, RTC starts counting correctly. What do you think could be the reason?

The processor I am using is STM32h723vet6

[Imen.D]

Hello @Mtopa.1​ ,

Check your HyperRam and make sure to configure the memory properly.

You can share your configuration this will help users Community to answer you.

Imen

[Mtopa.1]

Hello Imen DAHMEN (ST Employee),

My ram configuration is as follows.

i am using APS6408L-3OBM-BA ram

OSPIM_CfgTypeDef OSPIM_Cfg_Struct = {0};

 OSPI_RegularCmdTypeDef sCommand;

 OSPI_MemoryMappedTypeDef sMemMappedCfg = {0};

 OSPIHandle.Instance = OCTOSPI1;

 HAL_OSPI_DeInit(&OSPIHandle);

 OSPIM_Cfg_Struct.ClkPort = 1;

 OSPIM_Cfg_Struct.DQSPort = 1;

 OSPIM_Cfg_Struct.NCSPort = 1;

 OSPIM_Cfg_Struct.IOLowPort = HAL_OSPIM_IOPORT_1_LOW;

 OSPIM_Cfg_Struct.IOHighPort = HAL_OSPIM_IOPORT_1_HIGH;

 if (HAL_OSPIM_Config(&hospi1, &OSPIM_Cfg_Struct, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)

 {

  Error_Handler();

 }

 OSPIHandle.Init.FifoThreshold     = 1;

 OSPIHandle.Init.DualQuad       = HAL_OSPI_DUALQUAD_DISABLE;

 OSPIHandle.Init.MemoryType      = HAL_OSPI_MEMTYPE_APMEMORY;

 OSPIHandle.Init.DeviceSize      = 23; /* 256 MBits */

 OSPIHandle.Init.ChipSelectHighTime  = 1;

 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;//3;

 OSPIHandle.Init.SampleShifting    = HAL_OSPI_SAMPLE_SHIFTING_NONE;

 OSPIHandle.Init.DelayHoldQuarterCycle = HAL_OSPI_DHQC_ENABLE;

 OSPIHandle.Init.ChipSelectBoundary  = 10;

 OSPIHandle.Init.FreeRunningClock   = HAL_OSPI_FREERUNCLK_ENABLE;

 OSPIHandle.Init.DelayBlockBypass   = HAL_OSPI_DELAY_BLOCK_USED;//HAL_OSPI_DELAY_BLOCK_BYPASSED;

 OSPIHandle.Init.Refresh = 0xFFFF;

  if (HAL_OSPIM_Config(&OSPIHandle, &OSPIM_Cfg_Struct, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)

 {

  Error_Handler();

 }

 if (HAL_OSPI_Init(&OSPIHandle) != HAL_OK) {

  Error_Handler();

 }

 if (HAL_OSPI_Init(&OSPIHandle) != HAL_OK)

 {

  Error_Handler() ;

 }

  __HAL_OSPI_DISABLE(&OSPIHandle);

 HAL_Delay(100);

 CLEAR_BIT(OSPIHandle.Instance->DCR1, OCTOSPI_DCR1_FRCK);

 __HAL_OSPI_ENABLE(&OSPIHandle);

 HAL_Delay(1000);

 sCommand=read_reg(sCommand);

 if (HAL_OSPI_Command(&OSPIHandle, &sCommand, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)

 {

  Error_Handler();

 }

 if (HAL_OSPI_Receive(&OSPIHandle, MR_R, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)

 {

  Error_Handler();

 }

 //-----------write Register------------

  sCommand=write_reg(sCommand);

  if (HAL_OSPI_Command(&OSPIHandle, &sCommand, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)

  {

   Error_Handler();

  }

  if (HAL_OSPI_Transmit(&OSPIHandle, MR_write, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)

  {

   Error_Handler();

  }

 sCommand.Instruction    = WRITE_CMD_SRAM;

 sCommand.OperationType   = HAL_OSPI_OPTYPE_WRITE_CFG;

 sCommand.NbData       = 10;

 sCommand.DummyCycles    = DUMMY_CLOCK_CYCLES_SRAM_WRITE;

 if (HAL_OSPI_Command(&OSPIHandle, &sCommand, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) {

  Error_Handler();

 }

 sCommand.OperationType = HAL_OSPI_OPTYPE_READ_CFG;

 sCommand.Instruction  = READ_CMD_SRAM;

 sCommand.DummyCycles  = DUMMY_CLOCK_CYCLES_SRAM_READ;

 if (HAL_OSPI_Command(&OSPIHandle, &sCommand, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK) {

  Error_Handler();

 }

 sMemMappedCfg.TimeOutActivation = HAL_OSPI_TIMEOUT_COUNTER_DISABLE;

 if (HAL_OSPI_MemoryMapped(&OSPIHandle, &sMemMappedCfg) != HAL_OK) {

  Error_Handler();

 }