atmegaavrdude

How to read the fuses with avrdude

I have ea new stk500v2 programmer (Pololu) and want to read the fuses of an atmega8. With my old programmer I uses the command

avrdude -v  -p atmega8 -P /dev/cu.usbmodem002938642 -c stk500v2

and got the lfuse and hfuse on 2 lines

Now I only get

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e9307 (probably m8)

Using

avrdude -v  -p atmega8 -P /dev/cu.usbmodem002938642 -c stk500v2 -U hfuse:r:-:h

I get

avrdude: reading hfuse memory:

Reading | ################################################## | 100% 0.00s

avrdude: writing output file "<stdout>"
0xd9

Same with lfuse. Is there a way to get hfuse and lfuse with the same command?

Solution

  • I believe AVRDUDE allows multiple -U options, so try putting this at the end of your command:

    -U hfuse:r:-:h -U lfuse:r:-:h