This is a programmer for the Atmel AT89S8252 microcontroller through Arduino's SPI port from an intel hex file.
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.
| AT89S8252 | Arduino |
|---|---|
| RESET (Pin 9) | Pin 9 |
| MOSI (Pin 6) | Pin 11 |
| MISO (Pin 7) | Pin 12 |
| SCK (Pin 8) | Pin 13 |
Install PySerial and IntelHex modules for Python.
python3 -m pip install pyserial intelhex
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.
Program the microcontroller by running the script writeprogram.py.
- If you want erase the chip run
eraser.pyit erase both program and data space. - If you want dump the program on chip run
readprogram.py - If you want check the chip program from a file run
verifyprogram.py
You can also write, read, and verify data space with:
- writedata.py
- readdata.py
- verifydata.py