HI -
This forum looks to be above my level, but I don't know where else to go
at this point. I have a mac laptop running macosX 10.4.11, and a
Usbtiny programmer. I'm trying to use them to program Atmega328p
processors. I've successfully programmed an Arduino bootloader using the
Usbtiny and a Duemilanove board, with the Arduino 0018 IDE. Therefore I
believe that my hardware (up to the Atmegaxx8 target board anyway) is
good.
I would like to move beyond the Arduino and start programming with gcc
and libc. I've installed avr-gcc and built a .hex file of the demo
program, but can't get avrdude to write to the chip. I started with
avrdude 5.4, which would recognize the Usbtiny but not the m328p
processor (so I tried programming it as an Atmega168, but got an rc= -1
error). Then I moved on to avrdude-5.5 which doesn't recognize EITHER the
Usbtiny OR the Atmega328p. I then moved on to avrdude-5.10 with exactly
the same results.
I keep seeing references to patch files in the various forums, but never
with an source or directions. I looked thru the makefile in the avrdude
directory and it looks as tho the usbtiny.c file is being included in the
build. The direction pages and manuals all stop at running the configure
and just assume everything will be fine.
Could someone point me to a source for low level information for someone
starting from scratch?
Thanks,
nav
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