Thread: [Amforth] Fuses Arduino

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[Amforth] Fuses Arduino

From: Jan K. <kro...@ho...> - 2013-11-19 18:34:49

Hello,

 

I compiled the latest version of Amforth 5.1 with the AVR studio 5.0. without any error!

Load the hex and eep file to the Arduino, and no results.

 

What are the value of the fuses?

 

I found these values?

L=0xFF

H=0xD8

E=0xFD

 

Thanks for any help.

 

Jan Kromhout

Hellevoetsluis-NL

Re: [Amforth] Fuses Arduino

From: Erich W. <ew....@na...> - 2013-11-19 19:12:05

Hello Jan,

On 11/19/2013 07:34 PM, Jan Kromhout wrote:
> Hello,
> I compiled the latest version of Amforth 5.1 with the AVR studio 5.0. without any error!
> Load the hex and eep file to the Arduino, and no results.
> What are the value of the fuses?
> 
> I found these values?
> L=0xFF
> H=0xD8
> E=0xFD
>  
A quick look into my Makefile in one of my arduino directories have these lines:

MCU=atmega328p
# set the fuses according to your MCU
LFUSE=0xFF
HFUSE=0xD9
# some MCU have this one, see write-fuses target below
EFUSE=0x05

In the appl/arduino directory of amforth there is a Makefile.
It says

duemilanove:      PART=m328p
duemilanove.hex:  MCU=atmega328p
duemilanove.era:  PART=m328p
duemilanove.bak:  PART=m328p
duemilanove.fuse: PART=m328p
duemilanove.fuse: LFUSE=0xFF
duemilanove.fuse: HFUSE=0xD9
duemilanove.fuse: EFUSE=0x05

diecimila:        PART=m168
diecimila.hex:    MCU=atmega168
diecimila.era:    PART=m168
diecimila.bak:    PART=m168
diecimila.fuse:   PART=m168
diecimila.fuse:   LFUSE=0xFF
diecimila.fuse:   HFUSE=0xDD
diecimila.fuse:   EFUSE=0xF9
...

So it seems to me you picked the set for the atmega168. So "Arduino" is actually
not enough to decide on the fuses. Have a look into that Makefile.

Cheers,
Erich

Re: [Amforth] Fuses Arduino

From: Matthias T. <mt...@we...> - 2013-11-19 20:05:24

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Hi Jan,

> What are the value of the fuses?

The appl/arduino directory contains a
readme file that has among other information
a detailed list of the fuses for the different
arduino flavors.

Generally be careful with them. Double check
with the datasheet(s). In my experience, most
fuses are ok, except the ones that define the
bootloader size.

Matthias

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