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--- how_to_use_midibox_cv_with_a_dout [2006/06/15 16:43] – clean up english version grammar DrBunsen
+++ how_to_use_midibox_cv_with_a_dout [2009/05/06 14:23] (current) – 129.120.95.63
@@ Line 13: / Line 13: @@
 independent of the Note duration.
-Here as background is the trigger characteristic of some drum machines. The x0x-boxes (606,808,909...) trigger the sound at decrease of voltage at the gate instead of increase.  (IE at the trailing edge of the +ve pulse rather than the leading edge - is that correct? this is known as S-Trig? - Bunsen)
+Here as background is the trigger characteristic of some drum machines. The x0x-boxes (606,808,909...) trigger the sound at decrease of voltage at the gate instead of increase.\\  //IE at the trailing edge of the +ve pulse rather than the leading edge? I'm not sure if this is correct.\\  [[http://en.wikipedia.org/wiki/CV/Gate#Gate|Wikipedia]] says that Roland and Sequential gear is V-Trig {normal low, set high to trigger} and Moog, Korg and Yamaha is S-Trig {normal high, set low to trigger}.  The [[http://66.102.7.104/search?q=cache:IBefydaCrJIJ:www.kentonuk.com/kmanualspdf/psoloman.pdf+%22V-trig%22+edge&hl=en&gl=au&ct=clnk&cd=5&client=firefox|manual]] for the Kenton Pro Solo MIDI-CV converter says: " ... Most synths / sequencers & drum machines will want the Positive edge pulse, but a few require the Negative edge instead. (e.g. Korg Monopoly) .. " I've also seen written elsewhere that the 606 trigger out is V-Trig, but the 707 internal triggering for it's own voices is S-Trig\\ Also, if the trailing edge was the trigger, how would gates and envelopes work ie ADSR when AD happens at leading edge, D as gate is held high, and R when gate drops low? - Bunsen//
-Activate dout:
+__Activate dout:__
 Download the source of Midibox CV at http://www.ucapps.de/mios_download.html and search for the following in
@@ Line 44: / Line 44: @@
 	movlw	0x90				; check for Note On at channel #1
-	IFNEQ	MIOS_PARAMETER1, ACCESS, rgoto USER_MPROC_NRE_NoNoteChn1
+	cpfseq MIOS_PARAMETER1, ACCESS
+	rgoto USER_MPROC_NRE_NoNoteChn1
 USER_MPROC_NRE_NoteChn1
 	;; MIOS_DOUT_PinSet expects pin number in WREG, value in MIOS_PARAMETER1
@@ Line 70: / Line 71: @@
 activates the corresponding dout. A NoteOff deactivates the dout.
+__Define the number of connected DOUT shift registers:__
-ms extension for Vintage Drummer:
+If you're using more than one DOUT shift register, you must also change this code in "main.inc" to reflect the number of shift registers:
+<code>
+	;; initialize the SRIO driver
+	movlw	0x01
+	call	MIOS_SRIO_NumberSet
+</code>
+To set it to the maximum (16), just replace the code with this:
+<code>
+	;; initialize the SRIO driver
+	movlw	0x0F
+	call	MIOS_SRIO_NumberSet
+</code>
+__1ms Extension For Vintage Drum Machines:__
-Those who want to trigger Vintage Drummer have to modify the sourcecode as follows:
+Those who want to trigger vintage drums have to modify the sourcecode as follows:
 Search for the following:
 <code>
@@ Line 101: / Line 118: @@
 with a 1ms latency.
-(Would it be possible to instead have the DOUT pins held normally high, and drop to 0v on NoteOn?  That way there should be no latency. - Bunsen)
+MIDIbox SEQ allows up to 48 digital outputs as this type of trigger. [[http://ucapps.de/midibox_seq_options.html]]
+__Changing the midi channel:__
+If you want the DOUT triggers to respond to MIDI events on a channel other than #1, replace instances of "0x80" and "0x90" with the following values:
+  * Channel 1: 0x80, 0x90
+  * Channel 2: 0x81, 0x91
+  * Channel 3: 0x82, 0x92
+  * Channel 4: 0x83, 0x93
+  * Channel 5: 0x84, 0x94
+  * Channel 6: 0x85, 0x95
+  * Channel 7: 0x86, 0x96
+  * Channel 8: 0x87, 0x97
+  * Channel 9: 0x88, 0x98
+  * Channel 10: 0x89, 0x99
+  * Channel 11: 0x8A, 0x9A
+  * Channel 12: 0x8B, 0x9B
+  * Channel 13: 0x8C, 0x9C
+  * Channel 14: 0x8D, 0x9D
+  * Channel 15: 0x8E, 0x9E
+  * Channel 16: 0x8F, 0x9F
+__Forum articles:__
-Forum articles:
+[[http://www.midibox.org/forum/index.php/topic,13478.0.html]] -- Information on receiving on ALL channels, information on excluding specific DOUT pins from being reset with the 1ms trigger extension code
-http://www.midibox.org/forum/index.php?topic=2701.0\\
+[[http://www.midibox.org/forum/index.php?topic=2701.0]] (German)\\
-http://www.midibox.org/forum/index.php?topic=6333.0
+[[http://www.midibox.org/forum/index.php?topic=6333.0]] (German)