Revision 2:c648c5e93d5e, committed 2015-10-26

Comitter:

soulx

Date:

Mon Oct 26 16:43:07 2015 +0000

Parent:

1:e91aa7bef1f9

Child:

3:df82ebf4be54

Commit message:

edit ack chacking with wait_ms(5) *Application Note:AN1028

Changed in this revision

--- a/eeprom.cpp	Tue Aug 25 11:59:20 2015 +0000
+++ b/eeprom.cpp	Mon Oct 26 16:43:07 2015 +0000
@@ -3,6 +3,7 @@
 Date: 27 december 2011
 Version: 1.0
 ************************************************************/
+#include "mbed.h"
 #include "eeprom.h"
 
 #define BIT_SET(x,n) (x=x | (0x01<<n))
@@ -50,10 +51,14 @@
                     break;
                   case T24C32 :
                   case T24C64 :
+                  
                     if(address > 7) {
                       _errnum = EEPROM_BadAddress;
                     }
+                    
                     _address = _address << 1;
+                    
+                    
                     _page_write = 32;
                     _page_number = 1;
                     break;
@@ -98,7 +103,7 @@
     _size = T24C1024;
   
   // Set I2C frequency
-  _i2c.frequency(400000);
+  _i2c.frequency(100000);
 }
 
 void EEPROM::write(uint16_t address, int8_t data)
@@ -149,7 +154,7 @@
     cmd[2] = (uint8_t) data;
   }
   
-  //printf("len %d address %02x cmd[0] %02x cmd[1] %02x cmd[2] %02x\n",len,addr,cmd[0],cmd[1],cmd[2]);
+ // printf("len %d address %02x cmd[0] %02x cmd[1] %02x cmd[2] %02x\n",len,addr,cmd[0],cmd[1],cmd[2]);
  
   ack = _i2c.write((int)addr,(char *)cmd,len);
   if(ack != 0) {
@@ -448,7 +453,7 @@
   memcpy(cmd,&data,4);
   
   write(address,cmd,4);
-  
+
 }
 
 void EEPROM::write(uint16_t address, float data)
@@ -744,12 +749,13 @@
   addr = EEPROM_Address | _address;
   
   cmd = 0;
-  
+  /*
   // Wait end of write
   do {
        ack = _i2c.write((int)addr,(char *)cmd,0);
   } while(ack != 0);
-
+*/
+    wait_ms(5);
 }
 
 uint32_t EEPROM::getSize(void)

--- a/eeprom.h	Tue Aug 25 11:59:20 2015 +0000
+++ b/eeprom.h	Mon Oct 26 16:43:07 2015 +0000
@@ -46,7 +46,7 @@
      * @param type : eeprom type (TypeEeprom) 
      * @return none
     */
-    EEPROM(PinName sda, PinName scl, uint8_t address, TypeEeprom type=T24C16);
+    EEPROM(PinName sda, PinName scl, uint8_t address, TypeEeprom type=T24C64);
     
     /*
      * Random read byte