stm32l4r9i_eval_ospi_ram.c File Reference

This file includes a standard driver for the ISS66WVH8M8 HyperRAM memory mounted on STM32L4R9I-EVAL board. More...

#include "stm32l4r9i_eval_ospi_ram.h"

Go to the source code of this file.

Defines
#define	OSPI_RAM_QUAD_DISABLE   0x0
#define	OSPI_RAM_QUAD_ENABLE   0x1
#define	OSPI_RAM_HIGH_PERF_DISABLE   0x0
#define	OSPI_RAM_HIGH_PERF_ENABLE   0x1
Functions
static void	OSPI_RAM_MspInit (void)
	Initializes the OSPI MSP.
static void	OSPI_RAM_MspDeInit (void)
	De-Initializes the OSPI MSP.
uint8_t	BSP_OSPI_RAM_Init (void)
	Initializes the OSPI interface.
uint8_t	BSP_OSPI_RAM_DeInit (void)
	De-Initializes the OSPI interface.
uint8_t	BSP_OSPI_RAM_Read (uint8_t *pData, uint32_t ReadAddr, uint32_t Size)
	Reads an amount of data from the HyperRAM memory.
uint8_t	BSP_OSPI_RAM_Read_DMA (uint8_t *pData, uint32_t ReadAddr, uint32_t Size)
	Reads an amount of data from the HyperRAM memory in DMA mode.
uint8_t	BSP_OSPI_RAM_Write (uint8_t *pData, uint32_t WriteAddr, uint32_t Size)
	Writes an amount of data to the HyperRAM memory.
uint8_t	BSP_OSPI_RAM_Write_DMA (uint8_t *pData, uint32_t WriteAddr, uint32_t Size)
	Writes an amount of data to the HyperRAM memory in DMA mode.
uint8_t	BSP_OSPI_RAM_EnableMemoryMappedMode (void)
	Configure the OSPI in memory-mapped mode.
uint8_t	BSP_OSPI_RAM_EnterDeepPowerDown (void)
	This function enter the HyperRAM memory in deep power down mode.
uint8_t	BSP_OSPI_RAM_LeaveDeepPowerDown (void)
	This function leave the HyperRAM memory from deep power down mode.
void	BSP_OSPI_RAM_DMA_IRQHandler (void)
	Handles OctoSPI HyperRAM DMA transfer interrupt request.
void	BSP_OSPI_RAM_IRQHandler (void)
	Handles OctoSPI HyperRAM interrupt request.
Variables
OSPI_HandleTypeDef	OspiRamHandle
DMA_HandleTypeDef	DmaOspiRamHandle

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Detailed Description

This file includes a standard driver for the ISS66WVH8M8 HyperRAM memory mounted on STM32L4R9I-EVAL board.

Author:

MCD Application Team

  ==============================================================================
                     ##### How to use this driver #####
  ==============================================================================
  [..]
   (#) This driver is used to drive the ISS66WVH8M8 HyperRAM external
       memory mounted on STM32L4R9I-EVAL evaluation board.

   (#) This driver need a specific component driver (ISS66WVH8M8) to be included with.

   (#) Initialization steps:
       (++) Initialize the HyperRAM external memory using the BSP_OSPI_RAM_Init() function. This
            function includes the MSP layer hardware resources initialization and the
            OSPI interface with the external memory.

   (#) HyperRAM memory operations
       (++) HyperRAM memory can be accessed with read/write operations once it is
            initialized.
            Read/write operation can be performed with AHB access using the functions
            BSP_OSPI_RAM_Read()/BSP_OSPI_RAM_Write().
       (++) The function BSP_OSPI_RAM_GetInfo() returns the configuration of the HyperRAM memory.
            (see the HyperRAM memory data sheet)
       (++) Perform erase block operation using the function BSP_OSPI_RAM_Erase_Block() and by
            specifying the block address. You can perform an erase operation of the whole
            chip by calling the function BSP_OSPI_RAM_Erase_Chip().
       (++) The function BSP_OSPI_RAM_GetStatus() returns the current status of the HyperRAM memory.
            (see the HyperRAM memory data sheet)
  

Attention:

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Definition in file stm32l4r9i_eval_ospi_ram.c.