Re: [avr-chat] Mac OS X, mkII, avrdude, to program fuse bytes on mega128?

[Ned Konz]

On Feb 11, 2006, at 12:45 PM, Rick Mann wrote:

> Is anyone successfully using Mac OS X, a JTAGICE mkII, and avrdude  
> to program fuse bits on an (unprogrammed) ATmega128? I've  
> successfully used the JTAGICE with an ATmega32 that had previously  
> had its fuse bits set with AVRISP and uisp, but I seem to be having  
> trouble with this.
>
> In this case, I try this:
>
> $ avrdude -P /dev/tty.KeySerial1 -c jtagmkII -p m128 -u -U hfuse:w: 
> 0x81:m
>
> But it just hangs there. I can't interrupt it with ctrl-C, but I  
> can suspend it with ctrl-Z. I can't kill it; I have to unplug the  
> KeySpan serial adapter.
>
> Any suggestions would be most appreciated. Thanks!

Works for me in both avarice (v2.4, from CVS) and avrdude (v5.0):

neds_mini:~ ned$ avarice --mkII -r -j /dev/cu.usbserial-FTB5PNU8
AVaRICE version 2.4, Feb  3 2006 16:31:49

Defaulting JTAG bitrate to 1 MHz. Make sure that the target
frequency is at least 4 MHz or you will likely encounter failures
controlling the target.

JTAG config starting.
Found a device: JTAGICEmkII
Serial number:  00:a0:00:00:33:a6
Reported JTAG device ID: 0x9702
Configured for device ID: 0x9702 atmega128
JTAG config complete.

Reading Fuse Bytes:
  Extended Fuse byte -> 0xff
      High Fuse byte -> 0x19
       Low Fuse byte -> 0xcf


neds_mini:~ ned$ avarice --mkII -j /dev/cu.usbserial-FTB5PNU8 -W ff19cf
AVaRICE version 2.4, Feb  3 2006 16:31:49

Defaulting JTAG bitrate to 1 MHz. Make sure that the target
frequency is at least 4 MHz or you will likely encounter failures
controlling the target.

JTAG config starting.
Found a device: JTAGICEmkII
Serial number:  00:a0:00:00:33:a6
Reported JTAG device ID: 0x9702
Configured for device ID: 0x9702 atmega128
JTAG config complete.

Writing Fuse Bytes:
  Extended Fuse byte -> 0xff
      High Fuse byte -> 0x19
       Low Fuse byte -> 0xcf


neds_mini:~ ned$ avrdude -P /dev/cu.usbserial-FTB5PNU8 -c jtagmkII -p  
m128 -u -U hfuse:w:0x19:m

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100%  
0.22s

avrdude: Device signature = 0x1e9702
avrdude: reading input file "0x19"
avrdude: writing hfuse (1 bytes):

Writing | ################################################## | 100%  
0.18s

avrdude: 1 bytes of hfuse written
avrdude: verifying hfuse memory against 0x19:
avrdude: load data hfuse data from input file 0x19:
avrdude: input file 0x19 contains 1 bytes
avrdude: reading on-chip hfuse data:

Reading | ################################################## | 100%  
0.03s

avrdude: verifying ...
avrdude: 1 bytes of hfuse verified

avrdude done.  Thank you.


(and it reads back as 0x19 with avarice and avrdude).

$ avrdude -P /dev/cu.usbserial-FTB5PNU8 -c jtagmkII -p m128 -u -U  
hfuse:r:-:r | xxd

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100%  
0.24s

avrdude: Device signature = 0x1e9702
avrdude: reading hfuse memory:

Reading | ################################################## | 100%  
0.20s

avrdude: writing output file "<stdout>"

avrdude done.  Thank you.

0000000: 19                                       .

--
Ned Konz
address@hidden