N25Q128A13EF840F External Flash read write example

[himsha]

Hi,

I am new to QSPI. I working with stm32f469 disco that comes with external flash N25Q128A13EF840F. I had done the GUI part now I need to store data to external flash but I don't know how to do it. I had initialized qspi with STMCUBE default initialization. Any help

below is the way i had initialized

static void MX_QUADSPI_Init(void)
{
 
  /* USER CODE BEGIN QUADSPI_Init 0 */
 
  /* USER CODE END QUADSPI_Init 0 */
 
  /* USER CODE BEGIN QUADSPI_Init 1 */
 
  /* USER CODE END QUADSPI_Init 1 */
  /* QUADSPI parameter configuration*/
  hqspi.Instance = QUADSPI;
  hqspi.Init.ClockPrescaler = 1;
  hqspi.Init.FifoThreshold = 1;
  hqspi.Init.SampleShifting = QSPI_SAMPLE_SHIFTING_HALFCYCLE;
  hqspi.Init.FlashSize = 24;
  hqspi.Init.ChipSelectHighTime = QSPI_CS_HIGH_TIME_5_CYCLE;
  hqspi.Init.ClockMode = QSPI_CLOCK_MODE_0;
  hqspi.Init.FlashID = QSPI_FLASH_ID_1;
  hqspi.Init.DualFlash = QSPI_DUALFLASH_DISABLE;
  if (HAL_QSPI_Init(&hqspi) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN QUADSPI_Init 2 */
 
  /* USER CODE END QUADSPI_Init 2 */
 
}

[Amel NASRI]

Hi @himsha​ ,

The following article may be helpful for you: Where can I find source code of external loader (.stldr) for STM32 devices?

If this was really helpful, we appreciate upvoting for it (at the bottom of the page).

-Amel

[Tesla DeLorean]

Should be BSP side code for these parts in CubeF4, and if not there CubeF7/H7 ones

Should provide write/erase coverage

STM32Cube_FW_F4_V1.25.0\Drivers\BSP\Components\n25q128a\n25q128a.h

STM32Cube_FW_F4_V1.25.0\Drivers\BSP\STM32469I_EVAL\stm32469i_eval_qspi.c

STM32Cube_FW_F4_V1.25.0\Drivers\BSP\STM32F413H-Discovery\stm32f413h_discovery_qspi.c

Examples for some .STLDR can be found under ST-LINK Utilities or STM32 Cube Programmer directories.

Got some prebuilt external loaders for different parts and pin combinations here

https://github.com/cturvey/stm32extldr

Don't have much F4 stuff online as demand is low, but could be convinced to fashion some.