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stm32FSMC配置[定义].pdf

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stm32FSMC配置[定义].pdf

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st stm32 AN2784

1. FSMC

NOR FSMC

NOR 4 NOR

SRAM PSRAM

NOR SRAM PSRAM

8 16

NOR

NOR /SRAM

FSMC

ADDSET

ADDHOLD

DATAST

ACCMOD FSMC

4 FSMC_BTR

FSMC_BWR (

FSMC_BTR )

CLKDIV

DATLAT

NOR

NOR 2 NADV

2 M29W128FL

NOR 3 ADDSET DATAST ADDHOLD

NOR STM32F10xxx HCLK

3 4 NOR

FSMC

/ = ((ADDSET + 1) + (DATAST + 1)) × HCLK

DATAST

= tWP = DATAST × HCLK

FSMC

((ADDSET + 1) + (DATAST + 1)) × HCLK = max (tWC, tRC)

DATAST × HCLK = tWP

DATAST

DATAST = (tAVQV + tsu(Data_NE) + tv(A_NE))/HCLK – ADDSET – 4

/*-- FSMC Configuration ----------------------------------------------------*/

p.FSMC_AddressSetupTime = 0x05; /*ADDSET */

p.FSMC_AddressHoldTime = 0x00; /*ADDHOLD */

p.FSMC_DataSetupTime = 0x07; /*DATAST */

p.FSMC_BusTurnAroundDuration = 0x00; /*BUSTURN */

p.FSMC_CLKDivision = 0x00; /*CLKDIV */

p.FSMC_DataLatency = 0x00; /*DATLAT */

p.FSMC_AccessMode = FSMC_AccessMode_B; /* */

/*NOR/SRAM 4 */

FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;

/* */

FSMC_NORSRAMInitStructure.FSMC_DataAddressMux =

FSMC_DataAddressMux_Disable;

/* */

FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_NOR;

/* */

FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth =

FSMC_MemoryDataWidth_16b;

/* NOR (

)*/

FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode =

FSMC_BurstAccessMode_Disable;

/* WAIT */

FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity =

FSMC_WaitSignalPolarity_Low;

/* */

FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;

/* WAIT */

FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive =

FSMC_WaitSignalActive_BeforeWaitState;

/* */

FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;

/* WAIT */

FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;

FSMC_NORSRAMInitStructure.FSMC_ExtendedMode =

FSMC_ExtendedMode_Disable;

/* */

FSMC_NORSRAMInitStructure.FSMC_AsyncWait = FSMC_AsyncWait_Disable;

/* */

FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;

/* */

FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p; //

FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p; //

FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure); //

/* Enable FSMC Bank1_NOR Bank */

FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM2, ENABLE); //

}

STM32 NOR FLASH 39VF1601

1. fsmc_nor..c

* File Name : fsmc_nor.c

* Author : MCD Application Team

* Version : V2.0.1

* Date : 06/13/2008

* Description : This file provides a set of functions needed to drive the

* M29W128FL, M29W128GL and S29GL128P NOR memories mounted

* on STM3210E-EVAL board.

********************************************************************************

* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS

* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.

* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,

* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE

* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING

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stm32FSMC配置[定义].pdf

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