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How to file in a Eeprom
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Eeprom_programmer



Joined: 07 Aug 2007
Posts: 24

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How to file in a Eeprom
PostPosted: Tue Aug 07, 2007 12:19 pm     Reply with quote

I am trying to log the date on a EEPROM, but my code doesn't want to work. Please help me for some reason my rs232 communication doesn't want to work either.

Thanks in advance

Code:


 
#include "16F883.h"
//#include "time.h"
#use DELAY(clock=4000000)
#fuses HS,NOWDT,NOPROTECT,PUT,NOLVP,NOBROWNOUT,NOWRT
#define RS232_XMIT   PIN_C6   // (output) RS232 serial transmit
#define RS232_RCV   PIN_C7   // (input) RS232 serial receive
#define MAX_TICKS 4
#define OPAMP_GAIN  7.0
#define ANALOG_REF  5.0

#ifndef DAL_SCL
#define DAL_SCL PIN_C3
#define DAL_SDA PIN_C4
#define EE_BLOCK   7
#endif

#case

#use rs232(baud=9600, xmit=RS232_XMIT, rcv=RS232_RCV)
#use i2c(master,sda=DAL_SDA, scl=DAL_SCL)
#use fast_io(a)
#use fast_io(b)
#use fast_io(c)
//unsigned int16 ee_address = 0;
 
//unsigned int16 sensor = 0;              // holds ADC value of sensor
//unsigned int16 sensitivity=0 ;        //  holds ADC value of sensitivity
//unsigned char ticks = 0;
//unsigned char ms     = 0;
//unsigned char second = 0;
//unsigned char minute = 0;
//unsigned char Cublice_num = 1;

// Writes to the slave board from the master.
void write_ext_eeprom(int16 address, unsigned char data)
{

i2c_start();
i2c_write(0xAE);
i2c_write((int8)(address>>8));
i2c_write((int8)address);
i2c_write(data); 
i2c_stop();
delay_ms(5);

}   

// Read from the slave board and display the data.
unsigned char read_ext_eeprom(int16 address )
{

unsigned char data_read;

i2c_start();
i2c_write(0xAE);
i2c_write( (int8)(address>>8));
i2c_write( (int8)address);
i2c_start();
i2c_write(0xAF);
data_read = i2c_read(0); 
i2c_stop();
delay_ms(5);

return data_read;

}

// Data structures

// Data structure for logging
typedef struct
{
   unsigned char dd,    // Day
              mt,    // Month
              hh,    // Hour
              mm,    // Minute
              ss;    // Seconds

   unsigned int16 lev;  // Fluid Level
} lvlData;

// Level Data structure
lvlData levelData;            // Stores info to be logged to EEPROM

// This function will log a single lvlData structure to EEPROM

//===================================================================================================================================

void logtoEE(unsigned int ee_address, lvlData *currentEntry)
{
   // Move to correct block
   ee_address = ee_address * EE_BLOCK;

   // Write EEPROM
   write_ext_eeprom(ee_address, currentEntry->dd);             // Day
   write_ext_eeprom(ee_address+1, currentEntry->mt);           // Month
   write_ext_eeprom(ee_address+2, currentEntry->hh);           // Hour
   write_ext_eeprom(ee_address+3, currentEntry->mm);           // Minute
   write_ext_eeprom(ee_address+4, currentEntry->ss);           // Second
   write_ext_eeprom(ee_address+5, currentEntry->lev >> 8);     // Level (High byte)
   write_ext_eeprom(ee_address+6, (currentEntry->lev));        // Level (Low byte)

}

//===================================================================================================================================


//===================================================================================================================================
// This function will read a single log from the EEPROM and store it in a lvlData structure

void readEE(unsigned int ee_address, lvlData *currentEntry)
{
   // Move to correct block
   ee_address = ee_address * EE_BLOCK;

   // Read EEPROM
   currentEntry->dd  = read_ext_eeprom(ee_address);                       // Day
   currentEntry->mt  = read_ext_eeprom(ee_address+1);                       // Month
   currentEntry->hh  = read_ext_eeprom(ee_address+2);                       // Hour
   currentEntry->mm  = read_ext_eeprom(ee_address+3);                        // Minute
   currentEntry->ss  = read_ext_eeprom(ee_address+4);                       // Second   
   currentEntry->lev = read_ext_eeprom(ee_address+5);                          // Level (High Byte)
   currentEntry->lev = (currentEntry->lev << 8) | (read_ext_eeprom(ee_address+6)); // Level (Low byte)
}



void setup()
{


   

   set_tris_a(0x0B);               // Port A Direction
   // RA0 : Sensor Input (1)
   // RA1 : Sensitivity Input (1)
   // RA2 : Not used (0)
   // RA3 : Not used (1)
   // RA4 : Not used (0)
   // RA5 : Not used (0)

   set_tris_b(0x00);               // Port B Direction
   // RB0 : Not used (0)
   // RB1 : RS-485 Direction Output (0)
    // RB2 : LED1 Output (0)
   // RB3 : LED2 Output (0)
   // RB4 : LED3 Output (0)
   // RB5 : RUN LED Output (0)
    // RB6 : Not used (0)
   // RB7 : Not used (0)

   set_tris_c(0x80);               // Port C Direction
   // RC0 : Not used (0)
   // RC1 : Not used (0)
   // RC2 : Relay Output (0)
   // RC3 : SCLK (0)
   // RC4 : SDAT (0)
   // RC5 : Not used (0)
   // RC6 : Serial Transmit (0)
   // RC7 : Serial Receive (1)

   // ADC Setup
   //enable all interrupts (else timer2 wont happen)
   
}

void main()
{

struct lvlData *currentEntry;

unsigned char i;
setup();



while(1)
{
for(i = 1 ; i <10; i++)

{

levelData.dd = 1;// Day
levelData.mt = 2;    // Month
levelData.hh = 3;    // Hour
levelData.mm = 4;    // Minute;
levelData.ss = 5;
levelData.lev= 6;
logtoEE(i , i);
readEE (i , i);
printf(   " \nDag %d" , currentEntry->dd);                        // Day
printf( " \nMaand %d" , currentEntry->mt);                       // Month
printf(   " \nUur%d" ,    currentEntry->hh);                       // Hour
printf(   " \nMinute%d" ,    currentEntry->mm);                        // Minute
printf(   " \nSekondes%d" ,currentEntry->ss);                       // Second   
delay_ms(500);

//printf(   " \nLev1 %d" ,   currentEntry->lev);                          // Level (High Byte)
//printf(   " \nLev2 %d" , currentEntry->lev); // Level (Low byte)
}

}

}
 




PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Tue Aug 07, 2007 1:29 pm     Reply with quote

Start with a very simple program to test the RS-232. Example:
http://www.ccsinfo.com/forum/viewtopic.php?t=29538&start=6
Eeprom_programmer



Joined: 07 Aug 2007
Posts: 24

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PostPosted: Tue Aug 07, 2007 2:48 pm     Reply with quote

Thx the RS232 works but the eeprom doesn't any ideas?

Code:


 
#include "16F883.h"
//#include "time.h"
#use DELAY(clock=4000000)
#fuses HS,NOWDT,NOPROTECT,PUT,NOLVP,NOBROWNOUT,NOWRT
#define RS232_XMIT   PIN_C6   // (output) RS232 serial transmit
#define RS232_RCV   PIN_C7   // (input) RS232 serial receive
#define MAX_TICKS 4
#define OPAMP_GAIN  7.0
#define ANALOG_REF  5.0

#ifndef DAL_SCL
#define DAL_SCL PIN_C3
#define DAL_SDA PIN_C4
#define EE_BLOCK   7
#endif

#case

#use rs232(baud=9600, xmit=RS232_XMIT, rcv=RS232_RCV)
#use i2c(master,sda=DAL_SDA, scl=DAL_SCL)
#use fast_io(a)
#use fast_io(b)
#use fast_io(c)
//unsigned int16 ee_address = 0;
 
//unsigned int16 sensor = 0;              // holds ADC value of sensor
//unsigned int16 sensitivity=0 ;        //  holds ADC value of sensitivity
//unsigned char ticks = 0;
//unsigned char ms     = 0;
//unsigned char second = 0;
//unsigned char minute = 0;
//unsigned char Cublice_num = 1;

// Writes to the slave board from the master.
void write_ext_eeprom(int16 address, unsigned char data)
{

i2c_start();
i2c_write(0xAE);
i2c_write((int8)(address>>8));
i2c_write((int8)address);
i2c_write(data); 
i2c_stop();
delay_ms(5);

}   

// Read from the slave board and display the data.
unsigned char read_ext_eeprom(int16 address )
{

unsigned char data_read;

i2c_start();
i2c_write(0xAE);
i2c_write( (int8)(address>>8));
i2c_write( (int8)address);
i2c_start();
i2c_write(0xAF);
data_read = i2c_read(0); 
i2c_stop();
delay_ms(5);

return data_read;

}

// Data structures

// Data structure for logging
typedef struct
{
   unsigned char dd,    // Day
              mt,    // Month
              hh,    // Hour
              mm,    // Minute
              ss;    // Seconds

   unsigned int16 lev;  // Fluid Level
} lvlData;

// Level Data structure
lvlData levelData;            // Stores info to be logged to EEPROM

// This function will log a single lvlData structure to EEPROM

//===================================================================================================================================

void logtoEE(unsigned int ee_address, lvlData *currentEntry)
{
   // Move to correct block
   ee_address = ee_address * EE_BLOCK;

   // Write EEPROM
   write_ext_eeprom(ee_address, currentEntry->dd);             // Day
   write_ext_eeprom(ee_address+1, currentEntry->mt);           // Month
   write_ext_eeprom(ee_address+2, currentEntry->hh);           // Hour
   write_ext_eeprom(ee_address+3, currentEntry->mm);           // Minute
   write_ext_eeprom(ee_address+4, currentEntry->ss);           // Second
   write_ext_eeprom(ee_address+5, currentEntry->lev >> 8);     // Level (High byte)
   write_ext_eeprom(ee_address+6, (currentEntry->lev));        // Level (Low byte)

}

//===================================================================================================================================


//===================================================================================================================================
// This function will read a single log from the EEPROM and store it in a lvlData structure

void readEE(unsigned int ee_address, lvlData *currentEntry)
{
   // Move to correct block
   ee_address = ee_address * EE_BLOCK;

   // Read EEPROM
   currentEntry->dd  = read_ext_eeprom(ee_address);                       // Day
   currentEntry->mt  = read_ext_eeprom(ee_address+1);                       // Month
   currentEntry->hh  = read_ext_eeprom(ee_address+2);                       // Hour
   currentEntry->mm  = read_ext_eeprom(ee_address+3);                        // Minute
   currentEntry->ss  = read_ext_eeprom(ee_address+4);                       // Second   
   currentEntry->lev = read_ext_eeprom(ee_address+5);                          // Level (High Byte)
   currentEntry->lev = (currentEntry->lev << 8) | (read_ext_eeprom(ee_address+6)); // Level (Low byte)
}



void setup()
{


   

   set_tris_a(0x0B);               // Port A Direction
   // RA0 : Sensor Input (1)
   // RA1 : Sensitivity Input (1)
   // RA2 : Not used (0)
   // RA3 : Not used (1)
   // RA4 : Not used (0)
   // RA5 : Not used (0)

   set_tris_b(0x00);               // Port B Direction
   // RB0 : Not used (0)
   // RB1 : RS-485 Direction Output (0)
    // RB2 : LED1 Output (0)
   // RB3 : LED2 Output (0)
   // RB4 : LED3 Output (0)
   // RB5 : RUN LED Output (0)
    // RB6 : Not used (0)
   // RB7 : Not used (0)

   set_tris_c(0x80);               // Port C Direction
   // RC0 : Not used (0)
   // RC1 : Not used (0)
   // RC2 : Relay Output (0)
   // RC3 : SCLK (0)
   // RC4 : SDAT (0)
   // RC5 : Not used (0)
   // RC6 : Serial Transmit (0)
   // RC7 : Serial Receive (1)

   // ADC Setup
   //enable all interrupts (else timer2 wont happen)
   
}

void main()
{

while(1)
{

struct lvlData *currentEntry;

unsigned char i = 0;
setup();

printf( " \n Die datum " );
delay_ms(50);

levelData.dd = 1;// Day
levelData.mt = 2;    // Month
levelData.hh = 3;    // Hour
levelData.mm = 4;    // Minute;
levelData.ss = 5;
levelData.lev= 6;

logtoEE(i , i);
readEE (i , i);
printf(   " \nDag %d" , currentEntry->dd);                        // Day
printf( " \nMaand %d" , currentEntry->mt);                       // Month
printf(   " \nUur%d" ,    currentEntry->hh);                       // Hour
printf(   " \nMinute%d" ,    currentEntry->mm);                       // Minute
printf(   " \nSekondes%d" ,currentEntry->ss);                       // Second   



}

}
ckielstra



Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

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PostPosted: Tue Aug 07, 2007 3:03 pm     Reply with quote

Code:
logtoEE(i , i);
readEE (i , i);
The second parameter is wrong in both calls.
Eeprom_programmer



Joined: 07 Aug 2007
Posts: 24

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PostPosted: Tue Aug 07, 2007 3:05 pm     Reply with quote

Thx, but can you maybe give me a hint to what it must be becaues i am trying to understand this, but it is hard.
ckielstra



Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

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PostPosted: Tue Aug 07, 2007 3:19 pm     Reply with quote

Try the changes below (not tested)
Code:
void main()
{
  int8 RecordNr;   // Moved the variable declarations out of the loop.
                   // And I like int8 better as it is easier to port to other compilers.
  struct lvlData currentEntry;   // removed the '*' because you do not want a pointer but have to reserve memory.

  setup();   // moved out of loop for optimization.

  while(1)
  {
    RecordNr = 0;

    printf( " \n Die datum " );
    // delay_ms(50);   no delay required here

    levelData.dd = 1;    // Day
    levelData.mt = 2;    // Month
    levelData.hh = 3;    // Hour
    levelData.mm = 4;    // Minute;
    levelData.ss = 5;
    levelData.lev= 6;

    logtoEE(RecordNr, &levelData);     // A '&' indicates the compiler we want to pass the address of the struct
    readEE (RecordNr, &currentEntry);

    // Because we changed the declaration of currentEntry, we had to change the data access below from '->'  to '.'
    printf( "\nDag %d",     currentEntry.dd);        // Day
    printf( "\nMaand %d",   currentEntry.mt);        // Month
    printf( "\nUur %d",     currentEntry.hh);        // Hour
    printf( "\nMinuut %d",  currentEntry.mm);        // Minute
    printf( "\nSeconde %d", currentEntry.ss);        // Second   
  }
}
Eeprom_programmer



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PostPosted: Tue Aug 07, 2007 4:19 pm     Reply with quote

Thanx very much for the help, i understand a lot better now, still i get this errors

--- Info 300 "P:\main1.c" Line 83(2,9): More info: First Declaration of lvlData
*** Error 31 "P:\main1.c" Line 175(18,25): Identifier is already used in this scope

it has something to do with

Code:


struct lvldata currentEntry



when i change it to

Code:


struct lvldata *currentEntry



it works but returns the wrong values.
Sorry to bother
SET



Joined: 15 Nov 2005
Posts: 161
Location: Glasgow, UK

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PostPosted: Tue Aug 07, 2007 4:39 pm     Reply with quote

'levelData' declaration is missing:

Code:
struct lvlData currentEntry;
struct lvlData levelData;
Eeprom_programmer



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PostPosted: Wed Aug 08, 2007 5:06 am     Reply with quote

Thx, but that only seems to create more errors...
ckielstra



Joined: 18 Mar 2004
Posts: 3680
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PostPosted: Wed Aug 08, 2007 6:09 am     Reply with quote

My mistake (I said I didn't test it) Cool

Forget the well intended suggestion from SET. In my posted main(), change
Code:
struct lvlData currentEntry;
to
Code:
lvlData currentEntry;
SET



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PostPosted: Wed Aug 08, 2007 6:17 am     Reply with quote

Oops, I didnt see levelData declared further up, I only looked at the snippet in 'main' Smile
Eeprom_programmer



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PostPosted: Thu Aug 09, 2007 3:13 am     Reply with quote

So now i have both

Code:


lvlData levelData
lvlData currentEntry



No error anymore - Thank you very much!
But the only value that is returned is -1

Any futher ideas would be greatly apreciated
Thank for all the help up to here!
ckielstra



Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

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PostPosted: Thu Aug 09, 2007 3:55 am     Reply with quote

What is your compiler version?
Where do you see the -1 values?
eeprom_programmer*
Guest







PostPosted: Thu Aug 09, 2007 8:26 am     Reply with quote

when i printf dd,hh,mt,ss etc.
My compiler version is V4.033

dd = -1
hh = -1

etc
Eeprom_programmer



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PostPosted: Thu Aug 09, 2007 8:27 am     Reply with quote

Sorry i wasn't logged in.

Code:


printf(   " \nDag %d" , currentEntry->dd);                        // Day
printf( " \nMaand %d" , currentEntry->mt);                       // Month
printf(   " \nUur%d" ,    currentEntry->hh);                       // Hour
printf(   " \nMinute%d" ,    currentEntry->mm);                        // Minute
printf(   " \nSekondes%d" ,currentEntry->ss);                       // Second   
delay_ms(500);



The values being displayed here returns -1 values
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