GitHub - ab0tj/HardMPU: Atmega1284 based MPU-401 compatible MIDI interface

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Name	Name	Last commit message	Last commit date
Latest commit ab0tj Create LICENSE Mar 22, 2024 6f8c588 · Mar 22, 2024 History 44 Commits
bin	bin	Changes for v2.0 of the hardware	Apr 9, 2020
configtool	configtool	Changes for v2.0 of the hardware	Apr 9, 2020
Building the HardMPU.pdf	Building the HardMPU.pdf	Added build instructions	Sep 16, 2017
EXPORT.H	EXPORT.H	Changes for v2.0 of the hardware	Apr 9, 2020
HardMPU.atsln	HardMPU.atsln	Changes for v2.0 of the hardware	Apr 9, 2020
HardMPU.c	HardMPU.c	Changes for v2.0 of the hardware	Apr 9, 2020
HardMPU.cproj	HardMPU.cproj	Changes for v2.0 of the hardware	Apr 9, 2020
LICENSE	LICENSE	Create LICENSE	Mar 22, 2024
MIDI.C	MIDI.C	Changes for v2.0 of the hardware	Apr 9, 2020
MPU401.C	MPU401.C	Changes for v2.0 of the hardware	Apr 9, 2020
PIC.C	PIC.C	Buffer fix for faster machines	Apr 1, 2018
README	README	Update README	Oct 1, 2015
Schematic.pdf	Schematic.pdf	Cleaned up and simplified schematic	Dec 27, 2016
config.h	config.h	Changes for v2.0 of the hardware	Apr 9, 2020

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HardMPU: An intelligent MPU-401 compatible MIDI interface based on an Atmega microcontroller and SoftMPU software.

Features:
- IRQ driven intelligent mode compatible
- UART mode compatible
- SysEx delay for Roland MT-32 on faster computers
- "Fake all notes off" for Roland RA-50
- JTAG, ISP, and UART interfaces for user expansion

Limitations:
- Playback only, recording planned but not yet implemented
- Requires an ISA slot in your computer

This software is covered by the GPL. The circuit design is free for non-commercial use.