Shivanand Gowda / Mbed 2 deprecated SPI_FLASH_MEM

SPI NOR Flash Single IO Nucleo F767ZI Helloworld

Dependencies:   S25FL256S mbed

main.cpp@3:659cef358f9f, 2018-05-21 (annotated)

Committer:
shivanandgowdakr
Date:
Mon May 21 07:51:08 2018 +0000
Revision:
3:659cef358f9f
Parent:
2:f62261b0ef55 
SPI NOR Flash Single IO Nucleo F767ZI ; Helloworld

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shivanandgowdakr 2:f62261b0ef55 1
shivanandgowdakr 2:f62261b0ef55 2 // SPI Single IO NOR Flash Library for Nucleo F767ZI Interfacing
shivanandgowdakr 2:f62261b0ef55 3
shivanandgowdakr 2:f62261b0ef55 4
shivanandgowdakr 2:f62261b0ef55 5
bcostm 0:21b36798fd00 6 #include "mbed.h"
shivanandgowdakr 2:f62261b0ef55 7 #include "S25FL256S.h"
shivanandgowdakr 2:f62261b0ef55 8 #include <string>
shivanandgowdakr 2:f62261b0ef55 9
shivanandgowdakr 2:f62261b0ef55 10 Serial pc(USBTX, USBRX); // tx, rx
shivanandgowdakr 2:f62261b0ef55 11
shivanandgowdakr 2:f62261b0ef55 12 int main()
shivanandgowdakr 2:f62261b0ef55 13 {
shivanandgowdakr 2:f62261b0ef55 14 S25FL256S flash(PA_7, PA_6, PA_5, PA_4);
shivanandgowdakr 2:f62261b0ef55 15 pc.printf("SPI init done\r\n\r\n");
shivanandgowdakr 2:f62261b0ef55 16 uint8_t buffer[100]= {0};
shivanandgowdakr 2:f62261b0ef55 17 // Read Identification information Related to chip.
shivanandgowdakr 2:f62261b0ef55 18
shivanandgowdakr 2:f62261b0ef55 19 flash.Read_Identification(buffer);
shivanandgowdakr 2:f62261b0ef55 20 for(int i=0; i<80; i++) {
shivanandgowdakr 2:f62261b0ef55 21 printf(" ID is %X\r\n",buffer[i]);
shivanandgowdakr 2:f62261b0ef55 22 }
shivanandgowdakr 2:f62261b0ef55 23
shivanandgowdakr 2:f62261b0ef55 24 wait(1);
shivanandgowdakr 2:f62261b0ef55 25 // Reading Flash Memory Status Register1 contents.
shivanandgowdakr 2:f62261b0ef55 26
shivanandgowdakr 2:f62261b0ef55 27 uint8_t STATUS_REGISTER1= flash.readRegister();
shivanandgowdakr 2:f62261b0ef55 28 pc.printf(" STATUS REGISTER1 CONTENTS:%X\r\n\r\n",STATUS_REGISTER1);
shivanandgowdakr 2:f62261b0ef55 29
shivanandgowdakr 2:f62261b0ef55 30 wait(1);
shivanandgowdakr 2:f62261b0ef55 31
shivanandgowdakr 2:f62261b0ef55 32 flash.clearRegister();
shivanandgowdakr 2:f62261b0ef55 33
shivanandgowdakr 2:f62261b0ef55 34 uint8_t Read_Value=flash.readRegister();
shivanandgowdakr 2:f62261b0ef55 35 pc.printf(" reading value here %s\r\n\n",Read_Value);
shivanandgowdakr 2:f62261b0ef55 36
shivanandgowdakr 2:f62261b0ef55 37 STATUS_REGISTER1= flash.readRegister();
shivanandgowdakr 2:f62261b0ef55 38 pc.printf(" STATUS REGISTER1 CONTENTS:%X\r\n\r\n",STATUS_REGISTER1);
shivanandgowdakr 2:f62261b0ef55 39 wait(1);
shivanandgowdakr 2:f62261b0ef55 40
shivanandgowdakr 2:f62261b0ef55 41 printf("Read_Value : %X",Read_Value);
shivanandgowdakr 2:f62261b0ef55 42
shivanandgowdakr 2:f62261b0ef55 43 // write a stream of characters to arbitrary address 0x168
shivanandgowdakr 2:f62261b0ef55 44 char stri[] = "Shivanand Gowda Ramaiah";
shivanandgowdakr 2:f62261b0ef55 45
shivanandgowdakr 2:f62261b0ef55 46 pc.printf("Writing String Here: %s\r\n",stri);
shivanandgowdakr 2:f62261b0ef55 47
shivanandgowdakr 2:f62261b0ef55 48
shivanandgowdakr 2:f62261b0ef55 49 flash.writeStream(0x00, stri, 22); //Writing Strings in three Differnt addresses.
shivanandgowdakr 2:f62261b0ef55 50 flash.writeStream(22, stri, 22);
shivanandgowdakr 2:f62261b0ef55 51 flash.writeStream(44, stri, 22);
shivanandgowdakr 2:f62261b0ef55 52
shivanandgowdakr 2:f62261b0ef55 53 //
shivanandgowdakr 2:f62261b0ef55 54 // uint8_t a=flash.readRegister();
shivanandgowdakr 2:f62261b0ef55 55 // read stream from 0x168
shivanandgowdakr 2:f62261b0ef55 56 char str2[22] = {0};
shivanandgowdakr 2:f62261b0ef55 57 char str3[22] = {0};
shivanandgowdakr 2:f62261b0ef55 58 char str4[22] = {0};
shivanandgowdakr 2:f62261b0ef55 59 pc.printf("Before String Here: %s\r\n",str2);
shivanandgowdakr 2:f62261b0ef55 60 flash.readStream(0x00, str2, 22);
shivanandgowdakr 2:f62261b0ef55 61 pc.printf("After Read 1 String Here: %s\r\n",str2);
shivanandgowdakr 2:f62261b0ef55 62 flash.readStream(22, str4, 22);
shivanandgowdakr 2:f62261b0ef55 63 pc.printf("After Read 2 String Here: %s\r\n",str2);
shivanandgowdakr 2:f62261b0ef55 64 flash.readStream(44, str3, 22);
shivanandgowdakr 2:f62261b0ef55 65 pc.printf("After Read 3 String Here: %s\r\n",str2);
shivanandgowdakr 2:f62261b0ef55 66 //
shivanandgowdakr 2:f62261b0ef55 67 // for(int i=0; i<20;i++)
shivanandgowdakr 2:f62261b0ef55 68 // pc.printf("Printing byte by byte %c\r\n",str2[i]);
shivanandgowdakr 2:f62261b0ef55 69
shivanandgowdakr 2:f62261b0ef55 70
shivanandgowdakr 2:f62261b0ef55 71 flash.sectorErase(0x00);
bcostm 0:21b36798fd00 72 while(1) {
shivanandgowdakr 2:f62261b0ef55 73 uint8_t busy=flash.checkIfBusy();
shivanandgowdakr 2:f62261b0ef55 74 if(busy==0) {
shivanandgowdakr 2:f62261b0ef55 75 pc.printf("Not Busy any More \r\n");
shivanandgowdakr 2:f62261b0ef55 76 break;
shivanandgowdakr 2:f62261b0ef55 77 } else if (busy==1)
shivanandgowdakr 2:f62261b0ef55 78 pc.printf("Busy Now \r\n");
bcostm 0:21b36798fd00 79 }
shivanandgowdakr 2:f62261b0ef55 80
shivanandgowdakr 2:f62261b0ef55 81 pc.printf("Exited from program \r\n");
shivanandgowdakr 2:f62261b0ef55 82 return 0;
shivanandgowdakr 2:f62261b0ef55 83
bcostm 0:21b36798fd00 84 }