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$Id: README.txt 324 2008-05-03 20:25:44Z tk $
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$Id: README.txt 878 2010-01-02 15:40:58Z tk $
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A CORE->DIN/DOUT Module Interconnection Test
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CORE->DIN/DOUT Module Interconnection Test V2
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This application allows you to check the interconnections to the DIN and DOUT module
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This application allows you to check the interconnections to the DIN and DOUT module
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with a multimeter. You can control the SR/RC/DO pins by sending a Modulation Wheel
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event to your MIDIbox Core - just connect a keyboard or use
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MIDI-Ox (View->Control Panel)
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with a multimeter. 
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By default all unselected pins are 0V, except for the CS# pin which is 5V
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You can control the SR/RC/DO pins by sending a MIDI note with the virtual keyboard
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of MIOS Studio.
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Open the "MIOS Terminal" in MIOS Studio to get some helpful debugging messages
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The Pins are mapped to following Modulation Wheel Values:
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from the application -> see debugging.png as an example setup
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   # 0: Pin CORE::J8:DO and DOUT::J1:DO = ca. 5V
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   # 1: Pin CORE::J8:SC, CORE::J9:SC, DOUT::J1:SC, DIN::J1:SC = ca. 5V
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   # 2: Pin CORE::J8:RC, CORE::J9:RC, DOUT::J1:RC, DIN::J1:RC = ca. 5V
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The pin names are also visible on LCD (if connected)
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The Pins are mapped to following keys:
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   C : Pin CORE::J8:DO and DOUT::J1:DO = ca. 5V
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   C#: Pin CORE::J8:SC, CORE::J9:SC, DOUT::J1:SC, DIN::J1:SC = ca. 5V
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   D : Pin CORE::J8:RC, CORE::J9:RC, DOUT::J1:RC, DIN::J1:RC = ca. 5V
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The octave doesn't matter.
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If you measure a voltage much less than 4.8V (e.g. < 3V or even 0V), then
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If you measure a voltage much less than 4.8V (e.g. < 3V or even 0V), then
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there is either a short circuit or a missing connection between 
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there is either a short circuit or a missing connection between 
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the signal lines
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the signal lines
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SC/RC voltages directly at the pins of the 74HC595/74HC165, please have
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SC/RC voltages directly at the pins of the 74HC595/74HC165, please have
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a look into the schematics:
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a look into the schematics:
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   http://www.ucapps.de/mbhp/mbhp_doutx4.pdf
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   http://www.ucapps.de/mbhp/mbhp_doutx4.pdf
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   http://www.ucapps.de/mbhp/mbhp_dinx4.pdf
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   http://www.ucapps.de/mbhp/mbhp_dinx4.pdf
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The current status of the J9:DI pin is displayed as well.
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If you disconnect the DIN module from J9, you can directly set the voltage
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level with a cable between J9:DI and Vs (0V), resp. J9:DI and Vd (5V).
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If no cable is connected, the pin should read 5V (caused by the Pull-Up 
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resistor R9)
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The J9:DI pin can be tested with the MIDIO128 application, 
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The shift registers can be tested with the MIDIO128 application, once you've
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once you've ensured that SR/RC are working
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ensured that SR/RC are working
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Each digital input of the DINX4 module has to trigger a single MIDI event
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Each digital input of the DINX4 module has to trigger a single MIDI event
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For historical reasons the pins can also be controlled with a Modulation Wheel,
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and they are displayed on a LCD. This option hasn't been removed for those people
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who follow instructions from expired tutorials without reading this README.txt file.