Hi Jan,

If you want an AmForth operator prompt using the ATmega32u4's USB peripheral then the answer is no. However, if you are content to use the ATmega32u4's UART and have access to a USB to TTL serial adapter (of the appropriate voltage) then the answer is yes. The file /appl/arduino/leonardo.asm was setup to do this and I do remember running AmForth 6.8 on an Arduino Leonardo which uses the ATmega32u4.

Best wishes,
Tristan

On 2025-09-16 07:40, dxfo...@gmail.com wrote:
Not tried it myself, but there's an implementation including hex file
for the Arduino Leonardo under the folder:

amforth-6.9\appl\arduino\

________________________________
From: Jan Kromhout via Amforth-devel <amforth-devel@lists.sourceforge.net>
Sent: Tuesday, September 16, 2025 12:38 AM
To: Amforth-devel@lists.sourceforge.net <amforth-devel@lists.sourceforge.net>
Cc: Jan Kromhout <jankromh...@icloud.com>
Subject: [Amforth] Atmega32U4 microcontroller

Hello,

Is there a version of am forth for the ATmega32U4 AVR microcontroller?
If available where can I download this version, or is it a Parth of a whole?

Thanks for any help.

Jan Kromhout


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