EEPROM programer dedicated for AT28C16 memory. Electrical schema was created in EAGLE:
Figure 1.1: EEPROM prog schema
Same as board design:
Figure 1.2: top layer of EEPROM prog board
Figure 1.3: bottom layer of EEPROM prog board
It was done based on Arduino Nano 3.0 (ATmega328P):
Figure 1.4: Possible implementation on prototype board
Software library is written in C++, and it's available in code/eeprom.
To use it copy eeprom folder into your sketch directory (to check directory from Arduino IDE:
go into: File -> Preferences -> Settings -> Sketchbook location), and load it (Sketch -> Include Library -> eeprom). It will add
"include <eeprom.h>" header file to your project.
Available API:
- begin(): configure pins and serial output
- setAddress(unsigned int address, bool rw_bit): choose memory address to perform action over the pointed cell
- read(unsigned int address): read byte of data from memory address
- write(unsigned int address, byte data): write byte of data under memory address
- print(byte data_row_size, unsigned int data_total_size): print on serial output (COM) piece of memory content
- clean(): write whole memory chip with value 0x00
- erase(): erase whole memory chip by writing 0xFF
- writeAll(byte value): write whole memory chip with given value
Example:
#include <eeprom.h>
EEPROM eeprom;
void setup() {
// configure library
eeprom.begin();
// write byte (0x01) of data at address 0x00
eeprom.write(0x00, 0x01);
// print two rows of data (16 bytes per row, 32 bytes in total)
eeprom.print(16, 32);
// read single byte of data from address
byte read_data = eeprom.read(0x00);
}
void loop() {
}