hi all,
i was trying to work with stm32u585 microcontroller and an external RAM IS66WVQ2M4DALL , which is a QSPI based RAM can work in 133Mhz.the RAM support DDR based data transfer. Here i am attaching my OSPI configuration
hospi1.Instance = OCTOSPI1;
hospi1.Init.FifoThreshold = 1;
hospi1.Init.DualQuad = HAL_OSPI_DUALQUAD_DISABLE;
hospi1.Init.MemoryType = HAL_OSPI_MEMTYPE_APMEMORY;
hospi1.Init.DeviceSize = 20;
hospi1.Init.ChipSelectHighTime = 1;
hospi1.Init.FreeRunningClock = HAL_OSPI_FREERUNCLK_DISABLE;
hospi1.Init.ClockMode = HAL_OSPI_CLOCK_MODE_0;
hospi1.Init.WrapSize = HAL_OSPI_WRAP_NOT_SUPPORTED;
hospi1.Init.ClockPrescaler = 2;
hospi1.Init.SampleShifting = HAL_OSPI_SAMPLE_SHIFTING_NONE;
hospi1.Init.DelayHoldQuarterCycle = HAL_OSPI_DHQC_ENABLE;
hospi1.Init.ChipSelectBoundary = 0;
hospi1.Init.DelayBlockBypass = HAL_OSPI_DELAY_BLOCK_USED;
hospi1.Init.MaxTran = 0;
hospi1.Init.Refresh = 320;
if (HAL_OSPI_Init(&hospi1) != HAL_OK)
{
Error_Handler();
}
sOspiManagerCfg.ClkPort = 1;
sOspiManagerCfg.DQSPort = 1;
sOspiManagerCfg.NCSPort = 1;
sOspiManagerCfg.IOLowPort = HAL_OSPIM_IOPORT_1_LOW;
if (HAL_OSPIM_Config(&hospi1, &sOspiManagerCfg, HAL_OSPI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)
{
Error_Handler();
}
HAL_OSPI_DLYB_Cfg_Struct.Units = 0;
HAL_OSPI_DLYB_Cfg_Struct.PhaseSel = 0;
if (HAL_OSPI_DLYB_SetConfig(&hospi1, &HAL_OSPI_DLYB_Cfg_Struct) != HAL_OK)
{
Error_Handler();
}here i am confused about selecting hospi1.Init.MemoryType = HAL_OSPI_MEMTYPE_APMEMORY;
#define HAL_OSPI_MEMTYPE_MICRON ((uint32_t)0x00000000U) /*!< Micron mode */
#define HAL_OSPI_MEMTYPE_MACRONIX ((uint32_t)OCTOSPI_DCR1_MTYP_0) /*!< Macronix mode */
#define HAL_OSPI_MEMTYPE_APMEMORY ((uint32_t)OCTOSPI_DCR1_MTYP_1) /*!< AP Memory mode */
#define HAL_OSPI_MEMTYPE_MACRONIX_RAM ((uint32_t)(OCTOSPI_DCR1_MTYP_1 | OCTOSPI_DCR1_MTYP_0)) /*!< Macronix RAM mode */
#define HAL_OSPI_MEMTYPE_HYPERBUS ((uint32_t)OCTOSPI_DCR1_MTYP_2) /*!< Hyperbus mode */from some forums its get to know that this is based on the data order D0/D1 or D1/D0 from the datasheet of my memory ship the timing diagram look like
so here what option i need to take. and planning to work with memory mapped mode . here when i tried with read and write my read and write is corrupting can anybody check with my configuration
hi
this address mapping for QSPI based ISSI chip uses is supported by ST ,
