Revision 1:c389d5f4913d, committed 2018-10-23

Comitter:

shivanandgowdakr

Date:

Tue Oct 23 09:39:31 2018 +0000

Parent:

0:81848bf6dd4a

Commit message:

No Change

Changed in this revision

--- a/EE25LC1024.cpp	Fri Jun 01 12:54:02 2018 +0000
+++ b/EE25LC1024.cpp	Tue Oct 23 09:39:31 2018 +0000
@@ -1,12 +1,12 @@
 // EE25LC1024.cpp
-
+#include "includes.h"
 #include"EE25LC1024.h"
 
 // CONSTRUCTOR
 EE25LC1024::EE25LC1024(PinName mosi, PinName miso, PinName sclk, PinName cs) : SPI(mosi, miso, sclk), _cs(cs)
 {
     this->format(SPI_NBIT, SPI_MODE);
-    this->frequency(SPI_FREQ);
+    this->frequency(SPI_FREQ_EEPROM);
     chipDisable();
 }
 // READING
@@ -22,7 +22,7 @@
   int EE25LC1024::ReleaseDPD_ReadSign(void)
 { 
     chipEnable();
-    this->write(RDID);
+    this->write(ReadID);
     this->write(DUMMY_ADDR);
     this->write(DUMMY_ADDR);
     this->write(DUMMY_ADDR);
@@ -55,9 +55,10 @@
     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]);
+       // printf("i= %d   :%c \r\n",i,buf[i]);
     }
     chipDisable();
+  //  wait_ms(2);
 }
 
 // WRITING
@@ -72,15 +73,24 @@
     this->write(data);
     chipDisable();
     writeDisable();
-    wait_ms(6);
+      uint8_t busy=checkIfBusy();
+    while(busy)
+    {  
+      busy=checkIfBusy(); 
+     }
     // wait(WAIT_TIME);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails 
 }
 
 void EE25LC1024::writeStream(int addr, char* buf, int count)
 {
+
     if (count < 1)
         return;
+        
     writeEnable();
+    
+ 
+    
     chipEnable();
     this->write(WRITE);
     this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
@@ -91,8 +101,15 @@
     }
     chipDisable();
     writeDisable();
-   wait_ms(6);
-}
+     wait_ms(2);
+   uint8_t busy= checkIfBusy(); 
+   while(busy==1)
+   {
+       //printf("Busy   :%d\r\n",busy);
+       wait_ms(1);
+       busy= checkIfBusy();
+    }
+    }
 
 void EE25LC1024::writeString(int addr, string str)
 {
@@ -108,7 +125,11 @@
         this->write(str.at(i));
     chipDisable();
     writeDisable();
-    wait_ms(6);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails 
+      uint8_t busy=checkIfBusy();
+    while(busy)
+    {  
+      busy=checkIfBusy(); 
+     }//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails 
 }
 
 
@@ -132,7 +153,11 @@
     this->write(CE);
     chipDisable();
     writeDisable();
-    wait_ms(10);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails 
+      uint8_t busy=checkIfBusy();
+    while(busy)
+    {  
+      busy=checkIfBusy(); 
+     }//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails 
 }
 
 
@@ -146,21 +171,31 @@
     this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
     chipDisable();
     writeDisable();
-    wait_ms(10);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails 
+      uint8_t busy=checkIfBusy();
+    while(busy)
+    {  
+      busy=checkIfBusy(); 
+     }//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails 
 }
 
 void EE25LC1024::pageErase(int addr)
 {
     
     writeEnable();
+    
     chipEnable();
+    
     this->write(SE);
     this->write((addr & ADDR_BMASK2) >> ADDR_BSHIFT2);
     this->write((addr & ADDR_BMASK1) >> ADDR_BSHIFT1);
     this->write((addr & ADDR_BMASK0) >> ADDR_BSHIFT0);
     chipDisable();
     writeDisable();
-    wait_ms(6);//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails 
+       uint8_t busy=checkIfBusy();
+    while(busy)
+    {  
+      busy=checkIfBusy(); 
+     }//instead of wait poll for WIP flag of status reg or use checkIfBusy() function...see main for more dtails 
      
     
 }
@@ -169,11 +204,17 @@
 uint8_t EE25LC1024::checkIfBusy()
 {
     uint8_t value=readRegister();
-    printf("Value of Status Reg=%X\r\n\r\n",value);
-    if((value&0x01)==0x01)
+   // printf("\r\n Value of Status Reg=%X\r\n\r\n",value);
+    if((value & 0x01)==0x01 )
+    {
+        wait_ms(1);
         return 1;
+        }
     else
+    {
+        wait_ms(1);
         return 0;
+        }
 }
 
 void EE25LC1024::writeRegister(uint8_t regValue)
@@ -210,10 +251,14 @@
     this->write(one);
     chipDisable();
     writeDisable();
-    wait_ms(6);
+      uint8_t busy=checkIfBusy();
+    while(busy)
+    {  
+      busy=checkIfBusy(); 
+     }
 }
 
-long EE25LC1024::raedLong(int addr)
+long EE25LC1024::readLong1(int addr)
 {
     //Read the 4 bytes from the eeprom memory.
     chipEnable();

--- a/EE25LC1024.h	Fri Jun 01 12:54:02 2018 +0000
+++ b/EE25LC1024.h	Tue Oct 23 09:39:31 2018 +0000
@@ -6,7 +6,7 @@
 #include "mbed.h"
 #include <string>
 
-#define SPI_FREQ        5000000                 //Change SPI Frequency Here
+#define SPI_FREQ_EEPROM        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.
 
@@ -35,7 +35,7 @@
 #define     PE              0x42        //0100 0010 Page Erase – erase one page in memory array
 #define     SE              0xD8        //1101 1000 Sector Erase – erase one sector in memory array
 #define     CE              0xC7        //1100 0111 Chip Erase – erase all sectors in memory array
-#define     RDID            0xAB        //1010 1011 Release from Deep power-down and read electronic signature
+#define     ReadID          0xAB        //1010 1011 Release from Deep power-down and read electronic signature
 #define     DPD             0xB9        //1011 1001 Deep Power-Down mode
 #define     DUMMYBYTE       0x00        //Dummy byte for Read Operation
 
@@ -43,9 +43,7 @@
 public:
     EE25LC1024(PinName mosi, PinName miso, PinName sclk, PinName cs);
     
-    void deepPowerDown(void);
-    
-    
+    void deepPowerDown(void);    
     int readByte(int addr);                                 // takes a 24-bit (3 bytes) address and returns the data (1 byte) at that location                   
     void readStream(int addr, char* buf, int count);        // takes a 24-bit address, reads count bytes, and stores results in buf
     int ReleaseDPD_ReadSign(void);
@@ -58,7 +56,7 @@
     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                                   
-    long raedLong(int address);                             // Read long int number
+    long readLong1(int address);                             // Read long int number
     void writeLong(int addr, long value);                   // Write Long Integer Number
 private:
     void writeEnable();                                     // write enable