AN4570 datasheet(21/46 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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21 / 46 page

DocID026804 Rev 1

21/46

AN4570

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

{

/* Write data to NOR */

HAL_NOR_Program(&norHandle,

(uint32_t *)(NOR_DEVICE_ADDR + uwStartAddress),

pData);

/* Read NOR device status */

if(HAL_NOR_GetStatus(&norHandle,

NOR_DEVICE_ADDR,

PROGRAM_TIMEOUT) != NOR_SUCCESS)

{

return NOR_ERROR;

}

/* Update the counters */

index--;

uwStartAddress += 2;

pData++;

}

return NOR_OK;

}

/**

* @brief

Reads an amount of data from the NOR device.

* @param

uwStartAddress: Read start address

* @param

pData: Pointer to data to be read

* @param

uwDataSize: Size of data to read

* @retval NOR memory status

uint8_t NOR_ReadData(uint32_t uwStartAddress,

uint16_t* pData,

uint32_t uwDataSize)

{

if(HAL_NOR_ReadBuffer(&norHandle,

NOR_DEVICE_ADDR + uwStartAddress,

pData, uwDataSize) != HAL_OK)

{

return NOR_ERROR;

}

else

{

return NOR_OK;

}

AN4570 Datasheet(PDF) 21 Page - STMicroelectronics

AN4570 Datasheet(HTML) 21 Page - STMicroelectronics

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