Hello!
I've successfully put FlashForth on a Arduino UNO, and I am now trying
to do the same with the older Arduino Diecimila (ATMEGA168-20PU).
The FlashForth distribution does not come with an .hex file for it, so
I'm trying to generate one with avrasm2 2.1.52 found on the amforth
sourceforge file repos.
However I am failing to connect to FlashForth, and I am unsure why as I
am not very familiar with AVR and Arduino in general.
The steps are:
1. edit config.inc and add the line:
.include "m168def.inc"
2. run avrasm2:
wine avrasm2.exe -I /path/to/include -fI ff-atmega.asm
I get some warnings:
ff-atmega.asm(78): warning: Register r26 already defined by the .DEF directive
ff-atmega.asm(79): warning: Register r27 already defined by the .DEF directive
ff-atmega.asm(80): warning: Register r30 already defined by the .DEF directive
ff-atmega.asm(81): warning: Register r31 already defined by the .DEF directive
ff-atmega.asm(244): warning: Use of undefined or forward referenced symbol 'TX0_' in .equ/.set
ff-atmega.asm(245): warning: Use of undefined or forward referenced symbol 'RX0_' in .equ/.set
ff-atmega.asm(246): warning: Use of undefined or forward referenced symbol 'RX0Q' in .equ/.set
3. run avrdude:
avrdude -p m168 -c usbtiny -e -u -U flash:w:ff-atmega.hex:i -U efuse:w:0xff:m -U hfuse:w:0xdc:m -U lfuse:w:0xff:m
4. connect with screen:
screen /dev/cuaU0 9600
Instead of getting the FlashForth prompt like I do with the Arduino UNO,
I have an empty screen and nothing seems to happen.
Am I doing something wrong or is the ATMEGA168-20PU not fit for
FlashForth?
Thanks!
Aymeric.
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