Based on the code of 39SF040 / 39SF020A Programmer by Bob Szymanski Published 9/24/2015.

Connect Flash to Arduino mega according to the pins as defined in the source file. SD card pinout is as provided by Arduino, on pins 51-53.

Based on Arduino Mega 2650 and Standard SD Shield. Serial terminal speed 57600.

Quick serial commands list:

HELP - Shows this help

ID - Shows Chip ID

LS - Lists files on SD-card

DUMP arg1 arg2 - Dump to Serial EEPROM data; arg1 - start address, arg2 - data length

ES arg1 - Erase Sector; param1 - sector's start address

EC - Erase Chip

ETF arg1 arg2 arg3 - Writes EEPROM data to File; arg1 - filename, arg2 - start address, arg3 - data length

FTE arg1 arg2 - Program ROM File data to EEPROM; arg1 - filename, arg2 - start destination address

Example Usage:

FTE FIRMWARE.ROM 0x10000 - Writes file FIRMWARE.ROM to EEPROM starting from 0x10000

ETF FIRMWARE.ROM 0x10000 0x8000 - Writes EEPROM data starting from 0x10000 and length 0x8000 to file FIRMWARE.ROM

(ETF stands for Eeprom To File, FTE - File To Eeprom, etc.)

Dependencies: https://github.com/ppedro74/Arduino-SerialCommands @ppedro74

P.S. It is useful for programming EPROM of ZX-Spectrum :)