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main.c
Go to the documentation of this file.
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/****************************************************************************
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* Copyright (C) 2015 Sensorian
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* *
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* This file is part of Sensorian. *
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* *
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* Sensorian is free software: you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as published *
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* by the Free Software Foundation, either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* Sensorian is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with Sensorian. *
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* If not, see <http://www.gnu.org/licenses/>. *
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****************************************************************************/
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#include <stdio.h>
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#include "bcm2835.h"
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#include "
S25FL204K.h
"
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#include "
SPI.h
"
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int
main
(
void
)
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{
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SPI_Initialize
();
//Initialize SPI peripheral
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S25FL_Setup
();
//Setup flash memory
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S25FL_SReg_Write
(0x00);
//Remove protection from all blocks writes to SR1
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printf(
"NOR Flash memory demo.\r\n"
);
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printf(
"This example will read the chip factory ID \r\n and display the contents of the status registers.\r\n"
);
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unsigned
int
id
=
S25FL_ReadID
();
//read id - 0x01 ox16
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printf(
"Manufacturer id: %d \n"
,
id
);
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unsigned
long
a =
S25FL_Jedec_ID_Read
();
//0x01 0x40 0x17
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printf(
"Jedec ID: %ld \n"
,a);
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unsigned
char
cell =
S25FL_SReg_Read
(
STAT_REG1
);
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printf(
"Status register one: 0x%02X \n"
,cell);
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cell =
S25FL_SReg_Read
(
STAT_REG2
);
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printf(
"Status register two: 0x%02X \n"
,cell);
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cell =
S25FL_SReg_Read
(
STAT_REG3
);
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printf(
"Status register three: 0x%02X \n"
,cell);
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printf(
"End of demo."
);
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SPI_Close
();
//Close SPI peripheral
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return
0;
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}
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S25FL204K.h
S25FL204K driver header.
S25FL_Setup
void S25FL_Setup(void)
Setup SPI and IOs connected to Serial FLASH.
Definition:
S25FL204K.c:39
S25FL_ReadID
unsigned int S25FL_ReadID(void)
This function reads the Manufacturer ID code This procedure Reads the manufacturer's ID and device ID...
Definition:
S25FL204K.c:156
SPI_Initialize
void SPI_Initialize(void)
Initializes the SPI peripheral.
Definition:
SPI.c:35
STAT_REG3
#define STAT_REG3
Definition:
S25FL204K.h:71
SPI_Close
void SPI_Close(void)
Close SPI bus, should not be called if another SPI device is being used.
Definition:
SPI.c:95
S25FL_SReg_Write
void S25FL_SReg_Write(unsigned char statReg)
This procedure writes a byte to the Status Register.
Definition:
S25FL204K.c:279
main
int main(int argc, char **argv)
Definition:
main.c:34
S25FL_SReg_Read
unsigned char S25FL_SReg_Read(unsigned char statReg)
Read specific Status Register depending on value of statReg.
Definition:
S25FL204K.c:264
STAT_REG1
#define STAT_REG1
Definition:
S25FL204K.h:69
SPI.h
SPI driver header.
S25FL_Jedec_ID_Read
unsigned long S25FL_Jedec_ID_Read(void)
This procedure Reads the manufacturer's ID (BFh), memory type (25h) and device ID (4Bh)...
Definition:
S25FL204K.c:177
STAT_REG2
#define STAT_REG2
Definition:
S25FL204K.h:70
S25FL204K
Example1
main.c
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