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1.概要 summary
1-1.ハードウェアセットアップ(hard ware set up)
1-2.タイミングチャート timing chart
1-3.ピン一覧 pin assigned table
1-4.ソースコード source code by arduino(prossecing)
1-5.シリアルモニタプロット displayed serial monitor prompt
1.概要(summary) †
SpresenseからSPI I/Fによって記憶素子デバイスの制御を可能とする。
SpresenseとはSonyから発売されたIT向けの高性能エッジデバイスである。
Arduino互換SPI I/F(Supresense上はSPI4（D13:D10）)を使う場合、拡張ボードが必須となる。
I will get possible to control the device which is NOR-FLASH using Supresense
Spresense is made by Sony, which is the highest performance "Edge device" which has ever seen before.
Spresense has SPI I/F with Arduino compatible, we can use it with both the main-board and the extended board.
主要デバイス(Main devices)
(1)Spresense Main-board CXD5602PWBMAIN1 CortexM4F x6cores 156 MHz
(2)Spresense Extended-board CXD5602PWBEXT1
(Arduino互換I/FのSPIの場合は40Mhzまでに制限されている。)
(3)S25FL032P0XNFI010 NOR-FLASH
(SPI I/Fのものなら何でも可だがNORが良い)
(1)Spresense Main-board CXD5602PWBMAIN1 CortexM4F x6cores 156 MHz
(2)Spresense Extended-board CXD5602PWBEXT1
(limited SPI I/F(Arduino compatible) is up to 40MHz)
(3)S25FL032P0XNFI010 NOR-FLASH
(Any SPI-interfaced devices available ,but the type "NOR" is better)
1-1.ハードウェアセットアップ(hard ware set up) †
下図のような構成を考える。
(I consider the following structure by putting it into practice.)
Figure1.Spresense SPI diagram
Figure2.Spresense SPI diagram
1-2.タイミングチャート †
Omitted.
Please reffer the datasheet "S25FL032P0XNFI010"
The Clock rate is 20MHz(DIV4).
(doesn't work at 40MHz)
The reason is unclear, I've not investigateing.
1-3.ピン一覧(pins assigned table) †
Spresense extended-board <---->S25FL032P0XNF010 (WSON package 8pin) CS:8pin*--->CS#:1pin SCK:13pin--->SCK:6pin MIS:12pin<---SO:2pin MOS:11pin--->SI:5pin *CS is assigned 8pin (not default 10pin),because the 10pin is executed by a byte. Read data is not limitted by only a byte. The possibility of 2 bytes and more exists.
1-4.ソースコード(source code) †
#include <SPI.h> //to use SPI I/F
#define FLASH_CS 8 //set the pin to cs spre 8 only using Supresense made by Sony
uint8_t data_id; //ID data
uint8_t data_conf; //CONFIGURATION data
uint8_t data_str; //Status Register data
uint8_t data_write; //Write data
boolean exe_at_once = true;
//////////////////spi_initialize //////////////////
void spi_init() {
SPI.begin();
pinMode(FLASH_CS, OUTPUT);
SPI.setBitOrder(MSBFIRST); //send from MSB .Not LSB
SPI.setClockDivider(SPI_CLOCK_DIV4); //20MHz
// DIV"2" means "2"/16 divided internal clock(worked by 40MHz) but the target device "25FL" works up to DIV4(20MHz)
SPI.setDataMode(SPI_MODE0); //MODE0
spi_set_cs(0x1);
}
//////////////////spi_set_cs //////////////////
void spi_set_cs(uint8_t cs_high) {
digitalWrite(FLASH_CS, cs_high & 0x1);
}
//////////////////watch Write In Progress(the subsequent cycle has to wait this flag"0") //////////////////
uint8_t flash_is_wip() {
spi_set_cs(0x0);
SPI.transfer(0x05);
data_str = (uint8_t)SPI.transfer(0x00);
return (data_str & 0x1);
spi_set_cs(0x1);
}
void setup() {
spi_init();
Serial.begin(9600);
//////////////////RDID ///////////////////////
Serial.print("RDID(0x9f)_ReaD_Idtification_register\n");
spi_set_cs(0x0);
//RDID(0x9f) are excuting
data_id = SPI.transfer(0x9f);
for (uint16_t i = 0 ; i <= 80; ++i) { //80d stands for 50h which is the end of ID register
char cnt[80]; //cnt array defined
sprintf(cnt, "%2x", i);
//change Type to char to display as character(column gets to be the same vertical positon)
Serial.print(cnt);
Serial.print(" ");
}
Serial.print("\n");
for (uint16_t i = 0 ; i <= 80; ++i) { //80d stands for 50h which is the end of ID register
data_id = (uint8_t)SPI.transfer(0x00) ; //send dummy data to output clocks by 8 times
char data_cnt[80]; //cnt array defined
sprintf(data_cnt, "%2x", data_id);
Serial.print(data_cnt);
Serial.print(" ");
}
Serial.print("\n");
// Set cs to High
spi_set_cs(0x1);
SPI.endTransaction();
spi_init();
//////////////////RCR //////////////////
Serial.print("RCR(0x35)_Read_Configuration_Register\n");
spi_set_cs(0x0);
// RCR(0x35) are excuting
// data_conf = SPI.transfer(0x35);
SPI.transfer(0x35);
for (uint16_t i = 0 ; i <= 0; ++i) {
char cnt[1];
sprintf(cnt, "%2x", i);
Serial.print(cnt);
Serial.print(" ");
}
Serial.print("\n");
for (uint16_t i = 0 ; i <= 0; ++i) {
data_conf = (uint8_t)SPI.transfer(0x00) ;
char data_ccnt[1];
sprintf(data_ccnt, "%2x", data_conf);
Serial.print(data_ccnt);
Serial.print(" ");
}
Serial.print("\n");
spi_set_cs(0x1);
SPI.endTransaction();
spi_init();
//WRITE STATUS RESISTER_check & initialize to "0x00"
Serial.print("WEN(0x06)--->WRR(0x01**)_Write Enabled & Write Status Register \n");
Serial.print("Initialized to 0x00. All areas are Write Enabled\n");
spi_set_cs(0x0);
SPI.transfer(0x06);
spi_set_cs(0x1);
spi_set_cs(0x0);
SPI.transfer(0x01);
SPI.transfer(0x00);
spi_set_cs(0x1);
delay(100);
Serial.print("Write_in_progress_check");
while (flash_is_wip()) { //消去待ち
Serial.print(".");
}
Serial.print(" Clear\n");
Serial.print(" \n");
SPI.endTransaction();
spi_init();
//READ STATUS RESISTER
Serial.print("RDSR(0x05)_STATUS_REGISTER\n");
spi_set_cs(0x0);
// CMD_RDSR(0x05) are excuting
SPI.transfer(0x05);
data_str = (uint8_t)SPI.transfer(0x00);
Serial.print(data_str, HEX);
Serial.print("\n");
spi_set_cs(0x1);
SPI.endTransaction();
spi_init();
}
/*
//////////////////COMMAND_TABLE //////////////////
RDID(ReaD Identification Data) 0x9F ---Correct response are 4D 15 02 01
RCR(Read Configuration Register) 0x35
SE(Sector Erase) 0xD8
READ(READ) 0x03
RDSR(ReaD Status Register) 0x05
WEN(Write Eanable) 0x06
WRR(WRite Register) 0x01** (**are 10,0C,08,04 etc)
*/
void loop() {
if (exe_at_once) {
exe_at_once = false;
// exe_at_once= true;
for (uint16_t k = 0 ; k <= 0 ; ++k) {
SPI.endTransaction();
spi_init();
delay(200);
Serial.print("---Loop is stating--- \n");
/////////Sector Erase/////////
Serial.print("SE(0xD8)_Sector_Erase(only enable bit to change 0 to 1 1111...stands for 0xff)\n");
spi_set_cs(0x0);
SPI.transfer(0x06);
spi_set_cs(0x1);
spi_set_cs(0x0);
SPI.transfer(0xd8);
SPI.transfer(0x21);
SPI.transfer(0x00);
SPI.transfer(0x00);
spi_set_cs(0x1);
Serial.print("Write_in_progress_check");
while (flash_is_wip()) { //消去待ち
Serial.print(".");
}
Serial.print(" Clear\n");
Serial.print(" \n");
SPI.endTransaction();
spi_init();
//////////////////READ //////////////////
Serial.print("READ(0x03)\n");
spi_set_cs(0x0);
SPI.transfer(0x03);
SPI.transfer(0x21);
SPI.transfer(0x00);
SPI.transfer(0x00);
for (uint16_t i = 0 ; i <= 15; ++i) {
char cnt[16];
sprintf(cnt, "%2x", i);
Serial.print(cnt);
Serial.print(" ");
}
Serial.print("\n");
for (uint16_t i = 0 ; i <= 15; ++i) {
uint8_t data;
data = (uint8_t)SPI.transfer(0x00) ;
char data_cnt[16];
sprintf(data_cnt, "%2x", data);
Serial.print(data_cnt);
Serial.print(" ");
}
spi_set_cs(0x1);
Serial.print("\n");
SPI.endTransaction();
spi_init();
//////////////////WRITE//////////////////
Serial.print("WRITE(0x02) Terget to fixed address 0x210000 \n");
spi_set_cs(0x0);
SPI.transfer(0x06);
spi_set_cs(0x1);
spi_set_cs(0x0);
SPI.transfer(0x02);
SPI.transfer(0x21);
SPI.transfer(0x00);
SPI.transfer(0x00);
for (uint16_t i = 0 ; i <= 15; ++i) {
char cnt[16];
sprintf(cnt, "%2x", i);
Serial.print(cnt);
Serial.print(" ");
}
Serial.print(" \n");
for (uint16_t i = 0 ; i <= 15; ++i) {
//data_write = (uint8_t)SPI.transfer(i + 1 ) ;
data_write = i + 1 ;
SPI.transfer(i +1 ) ;
char data_count[16];
sprintf(data_count,"%2x",data_write);
Serial.print(data_count);
Serial.print(" ");
}
Serial.print(" \n");
spi_set_cs(0x1);
Serial.print("Write_in_progress_check");
while (flash_is_wip()) { //消去待ち
Serial.print(".");
}
Serial.print(" Clear\n");
Serial.print(" \n");
SPI.endTransaction();
spi_init();
//////////////////READ //////////////////
Serial.print("READ(0x03)\n");
spi_set_cs(0x0);
SPI.transfer(0x03);
SPI.transfer(0x21);
SPI.transfer(0x00);
SPI.transfer(0x00);
for (uint16_t i = 0 ; i <= 15; ++i) {
char cnt[16];
sprintf(cnt, "%2x", i);
Serial.print(cnt);
Serial.print(" ");
}
Serial.print("\n");
for (uint16_t i = 0 ; i <= 15; ++i) {
uint8_t data;
data = (uint8_t)SPI.transfer(0x00) ;
char data_cnt[16];
sprintf(data_cnt, "%2x", data);
Serial.print(data_cnt);
Serial.print(" ");
}
spi_set_cs(0x1);
Serial.print("\n");
/////////WRITE STATUS RESISTER_check & chage the value to "0x1C"/////////
Serial.print("WEN(0x06)--->WRR(0x01**)_Write Enabled & Write Status Register \n");
Serial.print("Changed data to 0x1C \n");
spi_set_cs(0x0);
SPI.transfer(0x06);
spi_set_cs(0x1);
spi_set_cs(0x0);
SPI.transfer(0x01);
SPI.transfer(0x1C);
spi_set_cs(0x1);
Serial.print("Write_in_progress_check");
while (flash_is_wip()) { //消去待ち
Serial.print(".");
}
Serial.print(" Clear\n");
Serial.print(" \n");
SPI.endTransaction();
spi_init();
/////////READ STATUS RESISTER/////////
Serial.print("RDSR(0x05)_STATUS_REGISTER\n");
spi_set_cs(0x0);
// CMD_RDSR(0x05) are excuting
SPI.transfer(0x05);
data_str = (uint8_t)SPI.transfer(0x00);
Serial.print(data_str, HEX);
Serial.print("\n");
spi_set_cs(0x1);
Serial.print("WEN_COMMAND cycles are 3 times + 1\n");
SPI.endTransaction();
spi_init();
//////////////////READ CONFIGURATION REGISTER //////////////////
Serial.print("RCR(0x35)_Read_Configuration_Register\n");
spi_set_cs(0x0);
// RCR(0x35) are excuting
// data_conf = SPI.transfer(0x35);
SPI.transfer(0x35);
for (uint16_t i = 0 ; i <= 0; ++i) {
char cnt[1];
sprintf(cnt, "%2x", i);
Serial.print(cnt);
Serial.print(" ");
}
Serial.print("\n");
for (uint16_t i = 0 ; i <= 0; ++i) {
data_conf = (uint8_t)SPI.transfer(0x00) ;
char data_ccnt[1];
sprintf(data_ccnt, "%2x", data_conf);
Serial.print(data_ccnt);
Serial.print(" ");
}
Serial.print("\n");
spi_set_cs(0x1);
/////////Ended up SPI transfer,and initialization/////////
SPI.endTransaction();
}
}
}
1-5.シリアルモニタプロット(serial monitor prompt displayed) †
RDID(0x9f)_ReaD_Idtification_register 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 1 2 15 4d 0 0 0 ff ff ff ff ff ff ff ff ff 51 52 59 2 0 40 0 0 0 0 0 27 36 0 0 b b 9 f 1 1 2 1 16 5 5 8 0 2 1f 0 10 0 3d 0 0 1 0 0 0 0 0 0 0 0 ff ff ff 50 52 49 31 33 15 0 1 0 5 0 1 3 85 95 7 0 RCR(0x35)_Read_Configuration_Register 0 0 WEN(0x06)--->WRR(0x01**)_Write Enabled & Write Status Register Initialized to 0x00. All areas are Write Enabled Write_in_progress_check Clear RDSR(0x05)_STATUS_REGISTER 0 ---Loop is stating--- SE(0xD8)_Sector_Erase(only enable bit to change 0 to 1 1111...stands for 0xff) Write_in_progress_check................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Clear READ(0x03) 0 1 2 3 4 5 6 7 8 9 a b c d e f ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff WRITE(0x02) Terget to fixed address 0x210000 0 1 2 3 4 5 6 7 8 9 a b c d e f 1 2 3 4 5 6 7 8 9 a b c d e f 10 Write_in_progress_check Clear READ(0x03) 0 1 2 3 4 5 6 7 8 9 a b c d e f 1 2 3 4 5 6 7 8 9 a b c d e f 10 WEN(0x06)--->WRR(0x01**)_Write Enabled & Write Status Register Changed data to 0x1C Write_in_progress_check.................. Clear RDSR(0x05)_STATUS_REGISTER 1C WEN_COMMAND cycles are 3 times + 1 RCR(0x35)_Read_Configuration_Register 0 0
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