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$Id$ MIDI USB 2x2 Interface Driver =============================================================================== Copyright (C) 2009 Thorsten Klose (email@example.com) Licensed for personal non-commercial use only. All other rights reserved. =============================================================================== Required tools: -> http://www.ucapps.de/mio32_c.html =============================================================================== Required hardware: o MBHP_CORE_STM32 or MBHP_CORE_LPC17 or MBHP_CORE_STM32F4 Optional hardware: o four LEDs connected to J5A.A0..A3 to display Tx/Rx status o four jumpers to select diagnosis options Note that LCD output for the MIDI monitor function is not supported! =============================================================================== This application acts as a simple 2x2 USB MIDI interface. Beside of the common usecase (communication with MIDI devices), it is intended as a test application for the two MIDI IN and OUT ports of the MBHP_CORE_STM32 module. An integrated MIDI monitor is provided which sends incoming MIDI events to a MIOS terminal (part of MIOS Studio) in plain text format via the first USB port for diagnosis. This function can be activated in the MIDI terminal (type 'help' for commands) 4 LEDs can be connected to J5A.A0..A3 to display the receive/transmit status. The cathodes (short legs) have to be connected to Ground (J5A.Vs), and the anodes (long legs) via serial resistors (220 Ohm) to following J5A.Ax pins: J5A.A0: OUT1 Tx J5A.A1: OUT2 Tx J5A.A2: IN1 Rx J5A.A3: IN2 Rx The Status LED of the MBHP_CORE_STM32 module flickers on *each* incoming/outgoing MIDI event. =============================================================================== IMPORTANT: This application has it's own USB product ID (e.g. to give it an own name), so that the device has to be enumerated again after the code has been uploaded. Just reconnect the USB cable after code upload, so that your operating system searches for the new device. Thereafter (depending on the OS you are using) it could be required to re-start MIOS Studio, and to configure the MIDI I/O ports again before you are able display MIDI Monitor output on the MIOS Terminal. =============================================================================== SysEx messages received on MIDI IN1 or transmitted to MIDI OUT1 via USB are not displayed by the MIDI monitor to avoid data corruption (the SysEx stream would interfere with monitor messages) ===============================================================================