High Voltage Serial Programming Attiny

With this mechanism it is possible to bring the mcu back to life.

High voltage serial programming attiny.

T his arduino sketch is useful for rescuing attiny microcontrollers rendered useless by incorrect fuse settings. Using wayne holder s excellent attiny fuse reset posts as a starting point this little device is able to reset the fuses on many attiny devices. A similar result if you include dwen. Developer programmer http mprog ru assures us that everything is done in accordance with the datasheet.

At attiny13 factory settings fuse bits. The code in this project uses arduino nano to re program attiny85 microcontroller fuses to default values using the hvsp method. The fuses can then easily be changed with the programmer you use for uploading your program. Just build a small circuit plug it into arduino board upload a sketch and you are good to go.

Included is a bit rstdisbl after this chip is not available for high voltage serial programming. Arduino high voltage programmer eraser for attiny based on recover bricked attiny using arduino as high voltage programmer this program restores the default fuse settings of the attiny and can perform a chip erase lock bits reset. This simple and inexpensive high voltage avr programmer for attiny chips requires only an attiny85 and a few components to build. Atmel attiny datasheet chapter high voltage serial programming describes alternative way of programming attiny microcontroller.

You don t need to purchase a hvp high voltage programmer or search for an old pc with parallel port to recover attiny.