Shivanand Gowda
Serial Peripheral Interface (SPI) Serial Single IO NOR Flash Memory Interfacing 1Gb
Fork of
S25FL256S
by 
Shivanand Gowda
Revision 6:b3c242976f7e, committed 2018-05-21
- Comitter:
- shivanandgowdakr
- Date:
- Mon May 21 10:22:55 2018 +0000
- Parent:
- 5:c2707c92ecb5
- Commit message:
- SPI Single IO Read Write Erase Operations S70FL01GS; Nucleo F767ZI
Changed in this revision
--- a/S25FL256S.cpp Mon May 21 07:50:39 2018 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,258 +0,0 @@
-// S25FL256S.cpp
-
-#include"S25FL256S.h"
-
-// CONSTRUCTOR
-S25FL256S::S25FL256S(PinName mosi, PinName miso, PinName sclk, PinName cs) : SPI(mosi, miso, sclk), _cs(cs)
-{
- this->format(SPI_NBIT, SPI_MODE);
- this->frequency(SPI_FREQ);
- chipDisable();
-}
-// READING
-int S25FL256S::readByte(int addr)
-{
- chipEnable();
- this->write(FOUR_READ);
- this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
- this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
- this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
- this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
- int response = this->write(DUMMY_ADDR);
- chipDisable();
- return response;
-}
-
-void S25FL256S::readStream(int addr, char* buf, int count)
-{
- if (count < 1)
- return;
- chipEnable();
- this->write(FOUR_READ);
- this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
- this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
- this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
- this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
- for (int i = 0; i < count; i++) {
- buf[i] = this->write(DUMMY_ADDR);
- printf("i= %d :%c \r\n",i,buf[i]);
- }
- chipDisable();
-}
-
-// WRITING
-void S25FL256S::writeByte(int addr, int data)
-{
- writeEnable();
- chipEnable();
- this->write(FOUR_PP);
- this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
- this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
- this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
- this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
- this->write(data);
- chipDisable();
- writeDisable();
- // wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
-}
-
-void S25FL256S::writeStream(int addr, char* buf, int count)
-{
- if (count < 1)
- return;
- writeEnable();
- wait(0.1);
- chipEnable();
- this->write(FOUR_PP);
- this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
- this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
- this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
- this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
- for (int i = 0; i < count; i++) {
- this->write(buf[i]);
- }
- wait(0.1);
- chipDisable();
- writeDisable();
- wait(WAIT_TIME);
-}
-
-void S25FL256S::writeString(int addr, string str)
-{
- if (str.length() < 1)
- return;
- writeEnable();
- chipEnable();
- this->write(FOUR_PP);
- this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
- this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
- this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
- this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
- for (int i = 0; i < str.length(); i++)
- this->write(str.at(i));
- chipDisable();
- writeDisable();
- wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
-}
-
-
-
-uint8_t S25FL256S::readRegister()
-{
-
- chipEnable();
- this->write(RDSR1);
- uint8_t val=this->write(DUMMY_ADDR);
- chipDisable();
- //wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
- //printf("value of reg is %X \r\n",val);
- return(val);
-
-}
-//ERASING
-void S25FL256S::chipErase()
-{
- writeEnable();
- chipEnable();
- this->write(BE);
- chipDisable();
- writeDisable();
- wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
-}
-
-void S25FL256S::Read_Identification(uint8_t *buf)
-{
-
-
- chipEnable();
- this->write(RDID);
- for(int i=0; i<80; i++)
- buf[i]=this->write(DUMMY_ADDR);
- chipDisable();
- wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
-}
-
-void S25FL256S::sectorErase(int addr)
-{
- writeEnable();
- chipEnable();
- this->write(FOUR_SE);
- this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
- this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
- this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
- this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
- chipDisable();
- writeDisable();
- wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
-}
-void S25FL256S::reset()
-{
- writeEnable();
- chipEnable();
- this->write(RESET);
- chipDisable();
- writeDisable();
-}
-
-uint8_t S25FL256S::checkIfBusy()
-{
- uint8_t value=readRegister();
- printf("Value of Status Reg=%X\r\n\r\n",value);
- if((value&0x01)==0x01)
- return 1;
- else
- return 0;
-
-}
-void S25FL256S::writeRegister(uint8_t regValue)
-{
- writeEnable();
- chipEnable();
- this->write(WRR);
- this->write(regValue);
- chipDisable();
- writeDisable();
- wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
-
-}
-
-void S25FL256S::clearRegister(void)
-{
- writeEnable();
- chipEnable();
- this->write(CLSR);
- chipDisable();
- writeDisable();
- wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
-
-}
-
-
-void S25FL256S::writeLong(int addr, long value)
-{
- //Decomposition from a long to 4 bytes by using bitshift.
- //One = Most significant -> Four = Least significant byte
- uint8_t four = (value & 0xFF);
- uint8_t three = ((value >> 8) & 0xFF);
- uint8_t two = ((value >> 16) & 0xFF);
- uint8_t one = ((value >> 24) & 0xFF);
-
- writeEnable();
- chipEnable();
- this->write(FOUR_PP);
- this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
- this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
- this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
- this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
- this->write(four);
- this->write(three);
- this->write(two);
- this->write(one);
- chipDisable();
- writeDisable();
- wait(0.1);
-}
-
-long S25FL256S::raedLong(int addr)
-{
- //Read the 4 bytes from the eeprom memory.
- writeEnable();
- chipEnable();
- this->write(FOUR_READ);
- this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
- this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
- this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
- this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
-
- long four = this->write(DUMMY_ADDR);
- long three = this->write(DUMMY_ADDR);
- long two = this->write(DUMMY_ADDR);
- long one = this->write(DUMMY_ADDR);
-
- //Return the recomposed long by using bitshift.
- return ((four << 0) & 0xFF) + ((three << 8) & 0xFFFF) + ((two << 16) & 0xFFFFFF) + ((one << 24) & 0xFFFFFFFF);
-}
-
-
-//ENABLE/DISABLE (private functions)
-void S25FL256S::writeEnable()
-{
- chipEnable();
- this->write(WREN);
- chipDisable();
-}
-void S25FL256S::writeDisable()
-{
- chipEnable();
- this->write(WRDI);
- chipDisable();
-}
-void S25FL256S::chipEnable()
-{
- _cs = 0;
-}
-void S25FL256S::chipDisable()
-{
- _cs = 1;
-}
-
--- a/S25FL256S.h Mon May 21 07:50:39 2018 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,144 +0,0 @@
-// S25FL256S.h
-
-#ifndef S25FL256S_H
-#define S25FL256S_H
-
-#include "mbed.h"
-#include <string>
-
-#define SPI_FREQ 5000000 //Change SPI Frequency Here
-#define SPI_MODE 0 // SPI Mode can be 0 or 3 . see data sheet
-#define SPI_NBIT 8 // Number of bits 8.
-
-
-
-#define DUMMY_ADDR 0x00
-#define WAIT_TIME 1
-
-#define ADDR_BMASK3 0xff000000
-#define ADDR_BMASK2 0x00ff0000
-#define ADDR_BMASK1 0x0000ff00
-#define ADDR_BMASK0 0x000000ff
-
-#define ADDR_BSHIFT3 24
-#define ADDR_BSHIFT2 16
-#define ADDR_BSHIFT1 8
-#define ADDR_BSHIFT0 0
-
-#define RDSR1 0x05 // 6th bit P_ERR Program Error-->1, NO error 0
- //5th bit E_ERR Program Error-->1, No ERROR 0
- //0th WIP --> 1 indicates Busy Writing, 0--> Free, Done
- // read Bits 6,5,0
-#define READ_ID 0x90 // Read Electronic Manufacturer Signature
-#define RDID 0x9F //Read ID (JEDEC Manufacturer ID and JEDEC CFI)
-#define RES 0xAB // Read Electronic Signature
-
-//4 Byte Address4PP 12h)
-
-#define FOUR_FAST_READ 0x0C //Read Fast (4-byte Address) 0C
-#define FOUR_READ 0x13 //Read (4-byte Address)
-#define FOUR_DOR 0x3C //Read Dual Out (FOUR_-byte Address) 3C
-#define FOUR_QOR 0x6C //Read Quad Out (FOUR_-byte Address)
-#define FOUR_DIOR 0xBC // Dual I/O Read (FOUR_-byte Address) BC
-#define FOUR_QIOR 0xEC //FOUR_QIOR Quad I/O Read (FOUR_-byte Address) EC
-#define FOUR_DDRFR 0x0E //Read DDR Fast (FOUR_-byte Address)
-#define FOUR_DDRDIOR 0xBE // DDR Dual I/O Read (FOUR_-byte Address) BE
-#define FOUR_DDRQIOR 0xEE
-#define FOUR_PP 0x12 // FOUR_PP Page Program (FOUR_-byte Address) 12
-#define FOUR_QPP 0x34 //Quad Page Program (FOUR_-byte Address)
-#define FOUR_P4E 0x21 // Parameter 4-kB Erase (4-byte Address) 21
-#define FOUR_SE 0xDC // Erase 64/256 kB (4-byte Address) DC
-
-//3 Byte Address
-
-#define READ 0x03 //READ Read (3-byte Address) 03
-#define FAST_READ 0x0B //FAST_READ Read Fast (3-byte Address) 0B
-#define DOR 0x3B //DOR Read Dual Out (3-byte Address) 3B
-#define Q0R 0x6B //QOR Read Quad Out (3-byte Address) 6B
-#define DIOR 0xBB //DIOR Dual I/O Read (3-byte Address) BB
-#define QIOR 0xEB //QIOR Quad I/O Read (3-byte Address) EB
-#define DDRFR 0x0D //DDRFR Read DDR Fast (3-byte Address) 0D
-#define DDRDIOR 0xBD //DDRDIOR DDR Dual I/O Read (3-byte Address) BD
-#define DDRQIOR 0xED //DDRQIOR DDR Quad I/O Read (3-byte Address) ED
-#define PP 0x02 //PP Page Program (3-byte Address) 02
-#define Qpp 0x32 //QPP Quad Page Program (3-byte Address) 32
-#define P4E 0x20 //P4E Parameter 4-kB Erase (3-byte Address) 20
-#define SE 0xD8 //SE Erase 64 / 256 kB (3-byte Address) D8
-#define BE 0x60 // Erase Entire Chip.
-
-#define RDSR1 0x05 //RDSR1 Read Status Register-1 05
-#define RDSR2 0x07 //RDSR2 Read Status Register-2 07
-#define RDCR 0x35 //RDCR Read Configuration Register-1 35
-#define WRR 0x01 //Write Register (Status-1, Configuration-1)
-#define WRDI 0x04 //Write Disable 04
-#define WREN 0x06 //WREN Write Enable 06
-#define CLSR 0x30 //CLSR Clear Status Register-1 - Erase/Prog. Fail Reset 30
-#define ECCRD 0x18 //ECCRD ECC Read (4-byte address) 18
-#define ABRD 0x14 //ABRD AutoBoot Register Read 14
-#define ABWR 0x15 //AutoBoot Register Write 15
-#define BRRD 0x16 //Bank Register Read 16
-#define BRWR 0x17 //Bank Register Write 17
-#define BRAC 0xB9 //BRAC Bank Register Access (Legacy Command formerly used for Deep Power Down) B9
-#define DLPRD 0x41 //DLPRD Data Learning Pattern Read 41
-#define PNVDLR 0x43 //PNVDLR Program NV Data Learning Register 43
-#define WVDLR 0x4A //Write Volatile Data Learning Register 4A
-#define PGSP 0x85 //Program Suspend 85
-#define PGRS 0x8A //Program Resume 8A
-#define ERSP 0x75 //Erase Suspend 75
-#define ERRS 0x7A //Erase Resume 7A
-#define OTPP 0x42 //OTP Program 42
-#define OTPR 0x4B //OTP Read 4B
-
-//Advanced Sector Protection
-
-#define DYBRD 0xE0 //DYB Read E0 133
-#define DYBWR 0xE1 //DYB Write E1 133
-#define PPBRD 0xE2 //PPB Read E2 133
-#define PPBP 0xE3 //PPB Program E3 133
-#define PPBE 0xE4 //PPB Erase E4 133
-#define ASPRD 0x2B //ASP Read 2B 133
-#define ASPP 0x2F //ASP Program 2F 133
-#define PLBRD 0xA7 //PPB Lock Bit Read A7 133
-#define PLBWR 0xA6 //PPB Lock Bit Write A6 133
-#define PASSRD 0xE7 //Password Read E7 133
-#define PASSP 0xE8 //Password Program E8 133
-#define PASSU 0xE9 //Password Unlock E9 133
-#define DUMMY 0x00 // Dummy write to read
-//Reset
-
-#define RESET 0xF0 //Software Reset F0 133
-#define MBR 0xFF //Mode Bit Reset FF 133
-#define DUMMYBYTE 0x00 //Dummy byte for Read Operation
-
-class S25FL256S: public SPI {
-public:
- S25FL256S(PinName mosi, PinName miso, PinName sclk, PinName cs);
-
- int readByte(int addr); // takes a 32-bit (4 bytes) address and returns the data (1 byte) at that location
- void readStream(int addr, char* buf, int count); // takes a 32-bit address, reads count bytes, and stores results in buf
-
- void writeByte(int addr, int data); // takes a 32-bit (4 bytes) address and a byte of data to write at that location
- void writeStream(int addr, char* buf, int count); // write count bytes of data from buf to memory, starting at addr
- void writeString(int add, string str);
- void sectorErase(int addr);
- void chipErase(); //erase all data on chip
- uint8_t readRegister();
- uint8_t checkIfBusy(); // Check if IC is bury writing or erasing
- void writeRegister(uint8_t regValue); // Write status register or configuration register
- void reset(void); // Reset Chip
- void clearRegister(); // Clear Status Register
- void Read_Identification(uint8_t *buf);
- long raedLong(int address); // Read long int number
- void writeLong(int addr, long value); // Write Long Integer Number
-private:
- void writeEnable(); // write enable
- void writeDisable(); // write disable
- void chipEnable(); // chip enable
- void chipDisable();
- // chip disable
-
- // SPI _spi;
- DigitalOut _cs;
-};
-
-#endif
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/S70FL01GS.cpp Mon May 21 10:22:55 2018 +0000
@@ -0,0 +1,258 @@
+// S70FL01GS.cpp
+
+#include"S70FL01GS.h"
+
+// CONSTRUCTOR
+S70FL01GS::S70FL01GS(PinName mosi, PinName miso, PinName sclk, PinName cs) : SPI(mosi, miso, sclk), _cs(cs)
+{
+ this->format(SPI_NBIT, SPI_MODE);
+ this->frequency(SPI_FREQ);
+ chipDisable();
+}
+// READING
+int S70FL01GS::readByte(int addr)
+{
+ chipEnable();
+ this->write(FOUR_READ);
+ this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
+ this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
+ this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
+ this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
+ int response = this->write(DUMMY_ADDR);
+ chipDisable();
+ return response;
+}
+
+void S70FL01GS::readStream(int addr, char* buf, int count)
+{
+ if (count < 1)
+ return;
+ chipEnable();
+ this->write(FOUR_READ);
+ this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
+ this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
+ this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
+ this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
+ for (int i = 0; i < count; i++) {
+ buf[i] = this->write(DUMMY_ADDR);
+ printf("i= %d :%c \r\n",i,buf[i]);
+ }
+ chipDisable();
+}
+
+// WRITING
+void S70FL01GS::writeByte(int addr, int data)
+{
+ writeEnable();
+ chipEnable();
+ this->write(FOUR_PP);
+ this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
+ this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
+ this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
+ this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
+ this->write(data);
+ chipDisable();
+ writeDisable();
+ // wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
+}
+
+void S70FL01GS::writeStream(int addr, char* buf, int count)
+{
+ if (count < 1)
+ return;
+ writeEnable();
+ wait(0.1);
+ chipEnable();
+ this->write(FOUR_PP);
+ this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
+ this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
+ this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
+ this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
+ for (int i = 0; i < count; i++) {
+ this->write(buf[i]);
+ }
+ wait(0.1);
+ chipDisable();
+ writeDisable();
+ wait(WAIT_TIME);
+}
+
+void S70FL01GS::writeString(int addr, string str)
+{
+ if (str.length() < 1)
+ return;
+ writeEnable();
+ chipEnable();
+ this->write(FOUR_PP);
+ this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
+ this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
+ this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
+ this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
+ for (int i = 0; i < str.length(); i++)
+ this->write(str.at(i));
+ chipDisable();
+ writeDisable();
+ wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
+}
+
+
+
+uint8_t S70FL01GS::readRegister()
+{
+
+ chipEnable();
+ this->write(RDSR1);
+ uint8_t val=this->write(DUMMY_ADDR);
+ chipDisable();
+ //wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
+ //printf("value of reg is %X \r\n",val);
+ return(val);
+
+}
+//ERASING
+void S70FL01GS::chipErase()
+{
+ writeEnable();
+ chipEnable();
+ this->write(BE);
+ chipDisable();
+ writeDisable();
+ wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
+}
+
+void S70FL01GS::Read_Identification(uint8_t *buf)
+{
+
+
+ chipEnable();
+ this->write(RDID);
+ for(int i=0; i<80; i++)
+ buf[i]=this->write(DUMMY_ADDR);
+ chipDisable();
+ wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
+}
+
+void S70FL01GS::sectorErase(int addr)
+{
+ writeEnable();
+ chipEnable();
+ this->write(FOUR_SE);
+ this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
+ this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
+ this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
+ this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
+ chipDisable();
+ writeDisable();
+ wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
+}
+void S70FL01GS::reset()
+{
+ writeEnable();
+ chipEnable();
+ this->write(RESET);
+ chipDisable();
+ writeDisable();
+}
+
+uint8_t S70FL01GS::checkIfBusy()
+{
+ uint8_t value=readRegister();
+ printf("Value of Status Reg=%X\r\n\r\n",value);
+ if((value&0x01)==0x01)
+ return 1;
+ else
+ return 0;
+
+}
+void S70FL01GS::writeRegister(uint8_t regValue)
+{
+ writeEnable();
+ chipEnable();
+ this->write(WRR);
+ this->write(regValue);
+ chipDisable();
+ writeDisable();
+ wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
+
+}
+
+void S70FL01GS::clearRegister(void)
+{
+ writeEnable();
+ chipEnable();
+ this->write(CLSR);
+ chipDisable();
+ writeDisable();
+ wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails
+
+}
+
+
+void S70FL01GS::writeLong(int addr, long value)
+{
+ //Decomposition from a long to 4 bytes by using bitshift.
+ //One = Most significant -> Four = Least significant byte
+ uint8_t four = (value & 0xFF);
+ uint8_t three = ((value >> 8) & 0xFF);
+ uint8_t two = ((value >> 16) & 0xFF);
+ uint8_t one = ((value >> 24) & 0xFF);
+
+ writeEnable();
+ chipEnable();
+ this->write(FOUR_PP);
+ this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
+ this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
+ this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
+ this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
+ this->write(four);
+ this->write(three);
+ this->write(two);
+ this->write(one);
+ chipDisable();
+ writeDisable();
+ wait(0.1);
+}
+
+long S70FL01GS::raedLong(int addr)
+{
+ //Read the 4 bytes from the eeprom memory.
+ writeEnable();
+ chipEnable();
+ this->write(FOUR_READ);
+ this->write((addr & ADDR_BMASK3) >> ADDR_BSHIFT3);
+ this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
+ this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
+ this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
+
+ long four = this->write(DUMMY_ADDR);
+ long three = this->write(DUMMY_ADDR);
+ long two = this->write(DUMMY_ADDR);
+ long one = this->write(DUMMY_ADDR);
+
+ //Return the recomposed long by using bitshift.
+ return ((four << 0) & 0xFF) + ((three << 8) & 0xFFFF) + ((two << 16) & 0xFFFFFF) + ((one << 24) & 0xFFFFFFFF);
+}
+
+
+//ENABLE/DISABLE (private functions)
+void S70FL01GS::writeEnable()
+{
+ chipEnable();
+ this->write(WREN);
+ chipDisable();
+}
+void S70FL01GS::writeDisable()
+{
+ chipEnable();
+ this->write(WRDI);
+ chipDisable();
+}
+void S70FL01GS::chipEnable()
+{
+ _cs = 0;
+}
+void S70FL01GS::chipDisable()
+{
+ _cs = 1;
+}
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/S70FL01GS.h Mon May 21 10:22:55 2018 +0000
@@ -0,0 +1,144 @@
+// S70FL01GS.h
+
+#ifndef S70FL01GS_H
+#define S70FL01GS_H
+
+#include "mbed.h"
+#include <string>
+
+#define SPI_FREQ 5000000 //Change SPI Frequency Here
+#define SPI_MODE 0 // SPI Mode can be 0 or 3 . see data sheet
+#define SPI_NBIT 8 // Number of bits 8.
+
+
+
+#define DUMMY_ADDR 0x00
+#define WAIT_TIME 1
+
+#define ADDR_BMASK3 0xff000000
+#define ADDR_BMASK2 0x00ff0000
+#define ADDR_BMASK1 0x0000ff00
+#define ADDR_BMASK0 0x000000ff
+
+#define ADDR_BSHIFT3 24
+#define ADDR_BSHIFT2 16
+#define ADDR_BSHIFT1 8
+#define ADDR_BSHIFT0 0
+
+#define RDSR1 0x05 // 6th bit P_ERR Program Error-->1, NO error 0
+ //5th bit E_ERR Program Error-->1, No ERROR 0
+ //0th WIP --> 1 indicates Busy Writing, 0--> Free, Done
+ // read Bits 6,5,0
+#define READ_ID 0x90 // Read Electronic Manufacturer Signature
+#define RDID 0x9F //Read ID (JEDEC Manufacturer ID and JEDEC CFI)
+#define RES 0xAB // Read Electronic Signature
+
+//4 Byte Address4PP 12h)
+
+#define FOUR_FAST_READ 0x0C //Read Fast (4-byte Address) 0C
+#define FOUR_READ 0x13 //Read (4-byte Address)
+#define FOUR_DOR 0x3C //Read Dual Out (FOUR_-byte Address) 3C
+#define FOUR_QOR 0x6C //Read Quad Out (FOUR_-byte Address)
+#define FOUR_DIOR 0xBC // Dual I/O Read (FOUR_-byte Address) BC
+#define FOUR_QIOR 0xEC //FOUR_QIOR Quad I/O Read (FOUR_-byte Address) EC
+#define FOUR_DDRFR 0x0E //Read DDR Fast (FOUR_-byte Address)
+#define FOUR_DDRDIOR 0xBE // DDR Dual I/O Read (FOUR_-byte Address) BE
+#define FOUR_DDRQIOR 0xEE
+#define FOUR_PP 0x12 // FOUR_PP Page Program (FOUR_-byte Address) 12
+#define FOUR_QPP 0x34 //Quad Page Program (FOUR_-byte Address)
+#define FOUR_P4E 0x21 // Parameter 4-kB Erase (4-byte Address) 21
+#define FOUR_SE 0xDC // Erase 64/256 kB (4-byte Address) DC
+
+//3 Byte Address
+
+#define READ 0x03 //READ Read (3-byte Address) 03
+#define FAST_READ 0x0B //FAST_READ Read Fast (3-byte Address) 0B
+#define DOR 0x3B //DOR Read Dual Out (3-byte Address) 3B
+#define Q0R 0x6B //QOR Read Quad Out (3-byte Address) 6B
+#define DIOR 0xBB //DIOR Dual I/O Read (3-byte Address) BB
+#define QIOR 0xEB //QIOR Quad I/O Read (3-byte Address) EB
+#define DDRFR 0x0D //DDRFR Read DDR Fast (3-byte Address) 0D
+#define DDRDIOR 0xBD //DDRDIOR DDR Dual I/O Read (3-byte Address) BD
+#define DDRQIOR 0xED //DDRQIOR DDR Quad I/O Read (3-byte Address) ED
+#define PP 0x02 //PP Page Program (3-byte Address) 02
+#define Qpp 0x32 //QPP Quad Page Program (3-byte Address) 32
+#define P4E 0x20 //P4E Parameter 4-kB Erase (3-byte Address) 20
+#define SE 0xD8 //SE Erase 64 / 256 kB (3-byte Address) D8
+#define BE 0x60 // Erase Entire Chip.
+
+#define RDSR1 0x05 //RDSR1 Read Status Register-1 05
+#define RDSR2 0x07 //RDSR2 Read Status Register-2 07
+#define RDCR 0x35 //RDCR Read Configuration Register-1 35
+#define WRR 0x01 //Write Register (Status-1, Configuration-1)
+#define WRDI 0x04 //Write Disable 04
+#define WREN 0x06 //WREN Write Enable 06
+#define CLSR 0x30 //CLSR Clear Status Register-1 - Erase/Prog. Fail Reset 30
+#define ECCRD 0x18 //ECCRD ECC Read (4-byte address) 18
+#define ABRD 0x14 //ABRD AutoBoot Register Read 14
+#define ABWR 0x15 //AutoBoot Register Write 15
+#define BRRD 0x16 //Bank Register Read 16
+#define BRWR 0x17 //Bank Register Write 17
+#define BRAC 0xB9 //BRAC Bank Register Access (Legacy Command formerly used for Deep Power Down) B9
+#define DLPRD 0x41 //DLPRD Data Learning Pattern Read 41
+#define PNVDLR 0x43 //PNVDLR Program NV Data Learning Register 43
+#define WVDLR 0x4A //Write Volatile Data Learning Register 4A
+#define PGSP 0x85 //Program Suspend 85
+#define PGRS 0x8A //Program Resume 8A
+#define ERSP 0x75 //Erase Suspend 75
+#define ERRS 0x7A //Erase Resume 7A
+#define OTPP 0x42 //OTP Program 42
+#define OTPR 0x4B //OTP Read 4B
+
+//Advanced Sector Protection
+
+#define DYBRD 0xE0 //DYB Read E0 133
+#define DYBWR 0xE1 //DYB Write E1 133
+#define PPBRD 0xE2 //PPB Read E2 133
+#define PPBP 0xE3 //PPB Program E3 133
+#define PPBE 0xE4 //PPB Erase E4 133
+#define ASPRD 0x2B //ASP Read 2B 133
+#define ASPP 0x2F //ASP Program 2F 133
+#define PLBRD 0xA7 //PPB Lock Bit Read A7 133
+#define PLBWR 0xA6 //PPB Lock Bit Write A6 133
+#define PASSRD 0xE7 //Password Read E7 133
+#define PASSP 0xE8 //Password Program E8 133
+#define PASSU 0xE9 //Password Unlock E9 133
+#define DUMMY 0x00 // Dummy write to read
+//Reset
+
+#define RESET 0xF0 //Software Reset F0 133
+#define MBR 0xFF //Mode Bit Reset FF 133
+#define DUMMYBYTE 0x00 //Dummy byte for Read Operation
+
+class S70FL01GS: public SPI {
+public:
+ S70FL01GS(PinName mosi, PinName miso, PinName sclk, PinName cs);
+
+ int readByte(int addr); // takes a 32-bit (4 bytes) address and returns the data (1 byte) at that location
+ void readStream(int addr, char* buf, int count); // takes a 32-bit address, reads count bytes, and stores results in buf
+
+ void writeByte(int addr, int data); // takes a 32-bit (4 bytes) address and a byte of data to write at that location
+ void writeStream(int addr, char* buf, int count); // write count bytes of data from buf to memory, starting at addr
+ void writeString(int add, string str);
+ void sectorErase(int addr);
+ void chipErase(); //erase all data on chip
+ uint8_t readRegister();
+ uint8_t checkIfBusy(); // Check if IC is bury writing or erasing
+ void writeRegister(uint8_t regValue); // Write status register or configuration register
+ void reset(void); // Reset Chip
+ void clearRegister(); // Clear Status Register
+ void Read_Identification(uint8_t *buf);
+ long raedLong(int address); // Read long int number
+ void writeLong(int addr, long value); // Write Long Integer Number
+private:
+ void writeEnable(); // write enable
+ void writeDisable(); // write disable
+ void chipEnable(); // chip enable
+ void chipDisable();
+ // chip disable
+
+ // SPI _spi;
+ DigitalOut _cs;
+};
+
+#endif
\ No newline at end of file