at89s825x-arduino

This is a programmer for the Atmel AT89S8252 and AT89S8253 microcontroller through Arduino's SPI port from an intel hex file.

Installation

Hardware

Upload progammer.ino to your Arduino board.

Connect the target microcontroller to VCC and GND, and add a crystal between XTAL1 and XTAL2. Make the following connections between the Arduino and the AT89S8252/AT89S8253.

AT89S8252	Arduino
RESET (Pin 9)	Pin 9
MOSI (Pin 6)	Pin 11
MISO (Pin 7)	Pin 12
SCK (Pin 8)	Pin 13
GND (Pin 20)	Pin GND

Software

Install PySerial and IntelHex modules for Python.

python3 -m pip install pyserial intelhex

Usage

Edit config.py to change the serial port and target/dump hex files.

In the blink directory there is blinky.hex that can be used as a sample program.

The program and data file names are in config.py

AT89S8252

Program the microcontroller by running the script writeprogram.py, before programming you need erase the micro with eraser.py.

• If you want erase the chip run eraser.py it erase both program and data space.
• If you want dump the program from chip to file run readprogram.py
• If you want check the chip program from a file run verifyprogram.py
• If you want check if the chip program is empty run verifyemptyprogram.py
• If you want write data to chip run writedata.py.
• If you want dump the data from chip to file run readdata.py
• If you want check the chip data from a file run verifydata.py
• If you want check if the chip data is empty run verifyemptydata.py
• If you want program lock bits on chip writelock.py

AT89S8253

Program the microcontroller by running the script writeprogram3.py, before programming you need erase the micro with eraser3.py.

• If you want program the microcontroller fast use writeprogramfast3.py
• If you want erase the chip run eraser3.py it erase both program and data space.
• If you want dump the program from chip to file run readprogram3.py
• If you want dump the program fast from chip to file run readprogramfast3.py
• If you want check the chip program from a file run verifyprogram3.py
• If you want check the chip program fast from a file run verifyprogramfast3.py
• If you want check if the chip program is empty run verifyemptyprogram3.py
• If you want check fast if the chip program is empty run verifyemptyprogramfast3.py
• If you want write data to chip run writedata3.py.
• If you want write data fast to chip run writedatafast3.py.
• If you want dump the data from chip to file run readdata3.py
• If you want dump the data fast from chip to file run readdatafast3.py
• If you want check the chip data from a file run verifydata3.py
• If you want check the chip data fast from a file run verifydatafast3.py
• If you want check if the chip data is empty run verifyemptydata3.py
• If you want check fast if the chip data is empty run verifyemptydata3.py
• If you want program lock bits on chip writelock3.py (actually unimplemented)
• If you want program fuses bits on chip writefuses3.py (actually unimplemented)
• If you want read lock bits on chip readlock3.py
• If you want read fuses bits on chip readfuses3.py
• If you want read Atmel signature from chip readatmelsgn3.py
• If you want write user signature from chip writeusersgn3.py
• If you want read user signature from chip readusersgn3.py

the fast version of the programs use the new page mode of the AT89S8253