AN4570 datasheet(14/46 Pages) STMICROELECTRONICS

Part #	AN4570

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

PDF	46 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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14 / 46 page

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

AN4570

14/46

DocID026804 Rev 1

Figure 5. 16-bit NOR Flash: M29W128FL/GL connection to STM32F30xxD/E

Note:

The GPIO PD6 pin is used to provide a Ready/Busy output signal for NOR Flash memories

(in this case the application needs to poll on the state of this pin to guarantee correct

operation).

In the example shown below, this pin is not used with the M29W128FL and M29W128GL

NOR Flash memories. It is however required for the S29GL128P NOR Flash memory.

A firmware example is available hereafter.

The main goal of this example is to provide the basics of how to use the FMC firmware

library and the associated NOR Flash memory driver to perform erase/read/write operations

on the M29W128FL, M29W128GL or S29GL128P NOR Flash memories.

For the FMC timings, the FMC NOR Flash firmware driver uses the highest timing values,

that is those of the S29GL128P NOR Flash memory.

AN4570 Datasheet(PDF) 14 Page - STMicroelectronics