AN4570 datasheet(18/46 Pages) STMICROELECTRONICS

Part #	AN4570

Description	This application note describes how to use the high-density

PDF	46 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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18 / 46 page

Interfacing with a non-multiplexed, asynchronous 16-bit NOR Flash memory

AN4570

18/46

DocID026804 Rev 1

if(NOR_ReadData(WRITE_READ_ADDR,

nor_aRxBuffer,

BUFFER_SIZE) != NOR_OK)

{

return NOR_ERROR;

}

return NOR_OK;

}

/**

* @brief

Initializes the NOR MSP.

* @param

None

* @retval None

void HAL_NOR_MspInit(NOR_HandleTypeDef *hnor)

{

GPIO_InitTypeDef GPIO_Init_Structure;

/* Enable FMC clock */

__FMC_CLK_ENABLE();

/* Enable GPIOs clock */

__GPIOD_CLK_ENABLE();

__GPIOE_CLK_ENABLE();

__GPIOF_CLK_ENABLE();

__GPIOG_CLK_ENABLE();

__GPIOH_CLK_ENABLE();

/* Common GPIO configuration */

GPIO_Init_Structure.Mode

= GPIO_MODE_AF_PP;

GPIO_Init_Structure.Pull

= GPIO_PULLUP;

GPIO_Init_Structure.Speed

= GPIO_SPEED_HIGH;

GPIO_Init_Structure.Alternate = GPIO_AF12_FMC;

/*## Data Bus #######*/

/* GPIOD configuration */

GPIO_Init_Structure.Pin

= GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_8 |

GPIO_PIN_9 |

GPIO_PIN_10 | GPIO_PIN_14 | GPIO_PIN_15;

HAL_GPIO_Init(GPIOD, &GPIO_Init_Structure);

/* GPIOE configuration */

AN4570 Datasheet(PDF) 18 Page - STMicroelectronics

AN4570 Datasheet(HTML) 18 Page - STMicroelectronics

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