SH7262 datasheet(20/45 Pages) RENESAS

20 / 45 page

SH7262/SH7264 Group

High-speed Read/Write Serial Flash Memory

Using the Renesas Serial Peripheral Interface

REJ06B0889-0100/Rev.1.00

June 2009

Page 20 of 45

3.2

Sample Program Listing "main.c" (2/3)

#include <stdio.h>

#include "serial_flash.h"

/* ==== Macro definition ==== */

#define TOP_ADDRESS

/* Start address of serial flash memory */

/* ==== Function prototype declaration ==== */

void main(void);

/* ==== Variable definition ==== */

#pragma section LARGE_ONCHIP_RAM

static unsigned char data[SF_SECTOR_SIZE];

static unsigned long rbuf[SF_SECTOR_SIZE/sizeof(long)];

#pragma section

/*""FUNC COMMENT""**************************************************************

* ID

* Outline

: Accessing serial flash memory main

*------------------------------------------------------------------------------

* Include

: "serial_flash.h"

*------------------------------------------------------------------------------

* Declaration

: void main(void);

*------------------------------------------------------------------------------

* Description

: Erases, programs, and reads serial flash memory.

: After initializing the RSPI channel 0, erases the entire memory

: array, and writes data from the start address. Reads the

: written data to compare to the provided data.

*------------------------------------------------------------------------------

* Argument

: void

*------------------------------------------------------------------------------

* Return Value : void

*------------------------------------------------------------------------------

* Note

: None

*""FUNC COMMENT END""**********************************************************/

void main(void)

{

int i, j;

unsigned char *p;

static unsigned long addr;

/* ==== Initializes the RSPI ==== */

sf_init_serial_flash();

/* ==== Unprotects serial flash memory ==== */

sf_protect_ctrl( SF_REQ_UNPROTECT );

SH7262 Datasheet(PDF) 20 Page - Renesas Technology Corp

SH7262 Datasheet(HTML) 20 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

Datasheet Download

Link URL