OpenSprinkler Forums OpenSprinkler Unified Firmware Which hex file for a blank atmega644 ? Reply To: Which hex file for a blank atmega644 ?



Hello randy,

This command is only to load a blank atmega m644p when no bootloader is already loaded in the atmega.
You cannot use the osFWupdater.
You must use to burn a blank atmega a programmer to program your atmega. That the problem…. Without a programmer you cannot program the bootloader.
In my case, I have buid the programmer from the idea from this page ( You can also buy on ebay a USBasp programmer like this one:

In the example, it’s a usbtiny programmer.
And the board 2.2 is running with a 16Mhz oscillator.