Hawkeye

Hi John, to debug things further, do you have any other machine available around? Laptop/Netbook/anything with a USB port? I have the feeling, that this might be a Windows XP based problem, not a MIDIbox hardware problem (which is per definition very stable!) :-) Many greets, Peter

Hi John, as a first test, I´d suggest to try connecting and querying the LPC core via MIDI... Just connect your working 2x2 USB MIDI interface to your PC, connect two MIDI Cables (MIDI IN 1 and OUT 1 on the LPC go to MIDI OUT 1 and MIDI IN 1 on the 2x2 USB interface respectively). Then you should be able to query the running core in MIOS studio (select the appropriate interfaces on the 2x2 interface) in MIOS studio first. Did you update any software on the LPC17 recently? There was a bootloader change, that involved some changes to the USB functionality. Many greets, Peter

Awesome work! Looks really nice and is probably lots of fun to play! I like integrated keyboards with SID modules :-) Many greets, Peter

Schwierige Geschichte - aber ich würde empfehlen, versuch einen Job bei einem der grösseren Consulting-Unternehmen zu bekommen. Mit Deinem Wissen aus mehreren Bereichen hast Du dort eine gute Chancen auf einen Job, der es Dir erlaubt, Dein Netzwerk auszubauen. Dann arbeitest Du dort 2 Jahre lang, hast währenddessen zwar überhaupt keine Zeit für Hobbies (geh mal von 60 Stunden/Woche) aus, aber ein anständiges Gehalt und kannst Dich danach mit den gesammelten Connections hoffentlich selbständig machen. Einziger Knackpunkt - die ersten Jahre Berufserfahrung in dem Job sind ziemlich hart... Wie auch immer Du Dich entscheidest - viel Erfolg! :-) Ciao, Peter

Agreed on the time-constantness - but TK.´s code does guarantee, that if there is an overflow (e.g. transposing 5 semitones up, out of the 128 range), that the resulting note will be exactly the same note, but on a lower octave close to the upper note limit, whereas the modulo by 128 will "only wrap around" and play a very low octave, possibly a very low tone.

Yo, look no further, you´ll find the live transpose code in seq_core.c within function SEQ_CORE_Transpose(...) In the end it is as easy as adding the given number of halftones (inc_semi) and octaves (inc_oct) to the incoming note: // apply transpose octave/semitones parameter if( inc_oct ) { note += 12 * inc_oct; if( inc_oct < 0 ) { while( note < 0 ) note += 12; } else { while( note >= 128 ) note -= 12; } } if( inc_semi ) { note += inc_semi; if( inc_semi < 0 ) { while( note < 0 ) note += 12; } else { while( note >= 128 ) note -= 12; } } Bye, Peter

Hola TB :-) Maybe look into the MBSEQ v4 code - i find it is very readable and contains "on the fly" transposing. And then dig into some of the MIOS32 coding examples, this should get you going regarding MIDI input + output and switch control :-) Many greets from cold south-of-munich :) Peter

Kann TK. da nur zustimmen, mit ein bisschen Einsatz kommt man damit auch mit 20 Stunden Arbeit pro Woche auf ein vertretbares Einkommen und kommt ein bisschen in der Welt rum. Grosser Vorteil, wenn einen das Consulting dann irgendwann nervt, hat man sich normalerweise in der vergangen Zeit einen Haufen Kontakte angeeignet und kann sich fast aussuchen, wo man "normal" weiterarbeiten will. Man muss halt ohne Stress mögliche "einnahmefreie" Zeiten irgendwie überbrücken können, aber dafür bietet sich ein zusätzliches Hobby wie "MIDIbox" geradezu an. Frohe Ostern und viele Grüße, Peter

Hi Martin, everything arrived today - sooo many knobs + excellent packaging! :-) Thanks again and have a great day! Bye, Peter

Niiiice! :) Knobbery refill, at last :) Thanks again! Peter

Hi Pete, I just tested a normal subversion checkout and update, and nothing bad happened, the server was still responsive, so I would not be afraid, that you can crash it when performing further tests! If you are sure, that the server is unresponsive (and others confirm that), you could mail Twin-X, who does the administration - he might have some more information. Many greets, Peter

Hello, fellow name brother ;-) (SmashTV knows what I am talking about, it seems, that we share the same pre and surname and he once told me, that he felt like I was kidding him, ordering from the US now ;-)). Subversion surely can have a lot of impact on server installations, especially certain operations make the disks on the server go berzerk... This could cause the forum software (which is a completely different software installation) to lag behind a bit, but it usually should not cause the site to completely time out. So my first guess is, that it might be a local installation problem at your side. On the other hand, it could be, that the many disk requests of the subversion server starve the IP.Board forum software, I have seen similar IO starvation on other servers, and they are quite often caused by SATA disks and too drastic OS write-behind caching, which may starve the whole system for some time. A timed subversion "attack" with someone else testing the forums (e.g. coordinated via chat) might solve the mystery on which side the problem occurs. If it is MIDIbox server-sided, I´d recommend to test with turned-off SATA write-behind caching. But I really think, that it is a local problem on your side, otherwise the problem would already have occured much earlier. Many greets, Peter

Haha, great job! :-) Thx for counting! :clover:

Nice and very well done, looks great! Less work = Happy Hawkeye ;-) Have a great day! Peter

Hi, das Design gefällt mir sehr gut! Wie kommst Du mit der Bedienung zurecht (Knopf und Encoder-Abstand)? Ciao und viele Grüße! Peter

Hi ilmenator, this is where everything takes place: http://svnmios.midibox.org/filedetails.php?repname=svn.mios32&path=%2Ftrunk%2Fapps%2Fsequencers%2Fmidibox_seq_v4%2Fcore%2Fseq_tpd.c The logic works like this: it internally cycles a column count and then power is applied to the corresponding column anode. Then up to two rows are GNDed, depending on the relative track positions, causing the respective LEDs to shine for that cycle. You might be able to get it running by just inverting both outputs (logical XOR with 0xFF the values of both calls to MIOS32_DOUT_SRSet()). Note: There is no support for multiple colors in the software yet, as I was out of shift registers, but of course it can be easily added. I therefore only connected the "green" pins on my SEQ :). Of course, it would be best to get it running on common hardware (i.e. the Sparkfun/Watterott LED matrices) to get rid of overly many configuration options :-) Many greets, Peter

Niiiice! :sorcerer: No problem with the inverted segment ordering, think this was maybe also my problem with the garbled segments, too, agreed on the most effective pitfall :-). Would you have a BOM, so I can order parts already? Thanks a lot and am really looking forward to some LED bling coding :). I happen to have two of these LED matrices from Watterott/Sparkfun left over, they should be exactly yours, right? http://www.watterott.com/de/LED-Matrix-Dual-Color-Small Have a great weekend! Peter

Hehe, you guys rock, thanks for the tips :-) I have solved the problem by buying a bunch of roses (it´s valentines day anyways tomorrow), maybe this "trick" can help you, too, when obtaining further gear ;-) Many greets, Peter

Hola, am quite sure the Newhaven 2x20s will work - you will love them, they look brilliant! ;-) Many greets, Peter

Nice! Hope there aren´t any skipped steps now! Please continue posting your findings, albeit I can´t yet build and especially operate one, it is very interesting! Many greets, Peter

Hi Daniel, Like latigid on and Shuriken said, if you order above around 65€ @ mouser, they offer free shipping, which I think is very fair. Also, the delivery is quite fast, so that this is a really cool alternative to Reichelt here in Germany, with lots of goodies in their inventory ;-). You also don´t have to pay for customs, don´t know how they do it, but I guess they have a stockyard here in Europe somewhere. Many greets, Peter

Welcome! 100% agreed on what Tim above said - if it is available commercially, it will be cheaper to buy. Because, if you intend to do it as a learning challenge, you can save a lot of $$$ and start with a smaller project. But, if you want features that are not available commercially and are willing to dedicate a lot of time and money, MIDIbox becomes more than interesting, it becomes a lifestyle ;-). Enjoy the forums and the cool people around here! :-) Many greets, Peter