Need Help Flashing Atiny25 MTN FET + 3175

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Justintoxicated's picture
Last seen: 1 month 2 weeks ago
Joined: 12/28/2016 - 19:36
Posts: 80
Location: California
Need Help Flashing Atiny25 MTN FET + 3175

So I want to flash a different firmware onto my board.  I bought all the things to do it and read through this guide:


Only issue is that I am trying to flash a atin25 not a atiny13 chip.


The first thing to flash for bistro and similar firmwares is the battery check, run it , then the rest of the configuration stuff, check them etc.  Then finally the actual firmware.


I copied the batterycheck-25 hex file out of the repository:

I don't know how to get things to compile in atmel studio on windows so I was hoping I ould use the existing hex file.  I found I can use gitBash for a shell and execute AVRdude on windows.  There was a sentence about setting the correct fuse values based on the .c file, but I didn't really see anything for the atiny25 in the c file linked below.


I used 0x75 and 0xFF when executing the command.  It started to write to the chip but then error-ed out.  Something like 0xFF expected but found something else.  I figured I did something wrong so I want to delete the chip. but now I only get an error message, when trying to erase or check status.

Error is below: 


Does this mean I bricked the driver?  What did I do wrong?


Lexel's picture
Last seen: 1 hour 54 min ago
Joined: 11/01/2016 - 08:00
Posts: 3767
Location: Germany

This errors comes if the clip does not make proper contact

If you flash to attiny 25 you got to change that in code