Getting Started

Chapter 8: C Pointers and Arrays

************************************

Function name : ReadEEPROM

r to string, number of bytes to read,

address in EEPROM

EEPROM

**************************/

uffer, char num_bytes, unsigned int EE_START_ADR)

eters

his function is to read data from the EEPROM. The parameter list

cludes a pointer to a string, ‘char *pBuffer’, the number of bytes to read, ‘char

address for the EEPROM, ‘EE_START_ADR’

ough space for the requested number of

OM with a pointer to the string, along with the

rting address of the EEPROM. The LoadEEPROM

for each pass the function eeprom_read_byte_169 is

e starting address of the EEPROM as a parameter, this

turns it so it can be put in the pBuffer array.

s:

ROM

ndexps, EEPROM_START + 1);

om vc

00

];

/

********************************

• 
  

  Returns : None

  
  


• 
  

  Parameters : Pointe

  
  


• 
  

  Purpose : Write byte(s) to the

  
  

  ---

  
  

  void LoadEEPROM(char *pB
  {
  unsigned char i;
  for (i=0;i<num_bytes;i++) {

  
  

pBuffer[i]=eeprom_read_byte_169(&EE_START_ADR); // Load param
EE_START_ADR++;
}
}

The purpose of t
in
num_bytes, and the starting

The caller sets up a string buffer with en
bytes and calls LoadEEPR
requested length and the sta
function runs a loop and
called with the address of th
function gets the byte and re

This function is used in vcard.c as follow

// Load name from EEP
LoadEEPROM(Name, i

using these declarations:

fr ard.h
#define STRLENGHT 25
#define EEPROM_START 0x1

at head of vcard.c:
uint8_t inde
har N

xps = 0;
c ame[STRLENGHT