jeb
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Posts posted by jeb
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Hello,
I was not offended :)
Best regards,
Joseph
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Hello,
Comme j explique ici : http://www.midibox.org/forum/index.php?topic=10352.0,
j ai construit un controleur qui marche etc. mais je n ai plus de place ni l utilisation
etant donne que j ai achete un vrai synthe analo.
Du coup a vendre... J ai des photos si interesse. Suis en Alsace.
A bientot
jeb
ps: je precise que c est pas du tout une activite commerciale c est juste
une vente d occase !
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Hello,
> You post your fancy new controller on 2007-12-10
> and want to sell it on 2007-12-16?
It s not a new one ! I have built it about 1 year ago as I said
in a previous post. It is fully functional. But the thing is that I
have recently bought a real analog synthesizer...
I recognize it is difficult to sell something I have personnaly
created, spent time on it, etc. but I do not use it enough
and I have very little space... So...
jeb
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Hello,
About the Midibox, it is MB64, with lots of pots, designed to control Arturia Minimoog
or any other VST : there are exists **free** Minimoog VST.
It IS finished and fully functional.
I spent more than 100 euros for electronics (with shipping, wall adapters, and misc.),
more than 50-60 euros for pots and knobs, 40 euros for the case wood making,
imitation leather, etc.
And really *a lot* in misc things that I even cannot remember.
You can mail me to do a proposal : basquin at freesurf dot fr.
Joseph
PS:
TK, Why do you find it strange ? I explained I ve done it *not for commercial purpose*
(I only sell this one !!)... The problem is indeed that I have bought a real
analog synthesizer and that I do not need this one anymore...
(Moreover I do the same now as I did with my LEGO as a child : I enjoy *building* a
unit, but then I less enjoy *using* it, and I go to another (currently not an electronic
one) project ...)
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here you can see some photos on the thread in the "midibox of the week
section":
http://www.midibox.org/forum/index.php?topic=10317.0
jeb
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I can send photos, etc.
Please contact me : basquin at freesurf dot fr !
jeb
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If somebody is interested, I sell it now... ! It's working great,
but I have now bought a real (much more expensive) analog synth...
and I have no more space in my 2-room apartment...
You can contact me here : basquin at freesurf dot fr.
I'm living in east of France, near Germany...
jeb
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in french we call it "skaï", it's imitation leather... 6 euros/meter..
here another close up picture :
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yes... leather... :)
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hello,
i've made several small midiboxes (one year ago... see my other post)... i'm
currently building a new one, and i have one or two small questions...
1) what range has been tested for power ? is 12V AC ok or too much ?
2) is there an interface for a power led (i don't want to build a ?OUT module
for this!)
3) i have 50 kohm faders... will it be okay ? i remember i had problems with
100k pots... will these 50k be okay ? if not, i don't remember how to make
them work (i cannot replace them for my specific project!!) WITHOUT jitter...
any idea ?
thanks in advance!
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hello,
thanx a lot.
a multiplexer would be good for me (much cheaper !! and easier than
building a complete core with a PIC...)
could you just give me the name of the chip needed (74?? , 74157 ?) and
then i promiss i will do it by myself without asking any questions.... ;)
thanx
jeb
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thanx a lot for your response !
how to use a digital multiplexer ? (which reference?)
which pins are to be connected ?
with this solution, will it be real merger ? or is it a solution
only when we are sure that the MIDI messages from
the 2 MIDI IN do NOT come at the same time ?
thanx in advance !
MIDIBOX is great !!
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hello,
1) what happens if i connect the 2 outputs of the 2 octo-couplers (one for each MIDI In)
to the same core ?
pin 6 of octocoupler 1 (MIDI IN #1) \
------------- pin 26 of PIC18F (pin RX)
pin 6 of octocoupler 2 (MIDI IN #2) /
will it work if i'm sure message won't come AT THE SAME TIME (from the differents outputs) ?
2) if i do :
pin 6 of octocoupler 1 (MIDI IN #1) ---> pin 26 of PIC18F (pin RX)
pin 6 of octocoupler 2 (MIDI IN #2) ---> pin 6 of PIC18F (pin RA4 like for the merger project)
I want to use the inputs NOT BOTH AT THE SAME TIME.
how to tell MIOS that MIDI comes from pin 26 or pin 6 ?
3) any other switching option ? apart putting a mechanical switch (that's what i've done!) ?
jeb
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hello,
ok if this doesn't work...
in fact i don't need to merge 2 inputs...
i have to use MIDI IN #1 at a certain moment and MIDI IN #2 at another moment.
but never both at the same time.
in fact i'm looking for a solution that allow me NOT to unplug one cable and replug
another... that would be boring....
is it possible to select one of the two MIDI IN ? (not to merge them
if not possible)
with a button for example or dynamically in the code that would ""switch"""
the input.
for the moment i have done it with an inversor (mechanical) switch but it's a bit boring...
i would like to switch it from the code ....
jeb
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hello,
i have done a midibox (with my own program based on the midiinout128 example)
with pots, buttons, etc.
i want to add a secondary midi input that will be merged with the first one.
i did like in the midi merger project : RA4 (from the PIC of the core, i.e. pin #6) to
a second optocoupler with resistors, diode, etc.....
do i have to remove the R2 1K resistor if I use the second midi input ?
because there is already a 1.2K resistor between PIC RA4 and 5v
(provided by the second MIDI (optocoupler, etc.) module (see midimerger.pdf))....
what do i have to add in the code ?
thanx
jeb
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Hello,
Do you know any website or pdf or book with FM presets ?
I know there are lots of preset, banks, .syx, etc. for dx7 on the web etc.
but i would like to have a paper version of the patch in order
i can "feel" a bit how to create beautiful sounds...
(open each preset with a DX software + screenshot + print would
be a bit long....)
Do you know any FM Patch Book ?
Thanks
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thanks a lot Wilba !!!
but MIOS_HLP_Dec2BCD brings me wrong value in MIOS_PARAMETER1, MIOS_PARAMETER2, MIOS_PARAMETER3...
for example for x=100 (unsigned int)
PAR2 = 0x56 ??
PAR3 = 0x00 ???
that's strange !
i've read a previous post about issues about Dec2BCD but i didn't really understand what was the conclusion !!
thx,jeb
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Thanx Lall !
The idea with << for the double switch is great !!!!!! My second value is only 0 or 1 so (<< 1) is enough !
between :
switch ((i<<1) + j);
{ case 0x010: //-> corresponding to i = 1, j = 0
case 0x011: //-> corresponding to i = 1, j = 1
...
case 0x031: //-> corresponding to i = 3, j = 1
}
and
switch (i) {
case 1: if j then ..... else ....
case 2: if j then ..... else ...
...}
which is better in terme of time consume ?
thanx
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hello
> The pointers would be even slower than the switch statement
that's not possible : the pointer to the function is *changed* only when a button
is pressed (so in the call of DIN_NotifyToggle), so not so often at all !
the pointer would replace a
//
switch (mode)
case 1 : Function1();
...
//
by a
//
Functionptr();
//
where Functionptr points to Function1, Function2, or Function3.
is this possible in C ?
how to do a pointer to a function with SDCC ?
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Hi,
thanx for all answers.
I have read the libsdcc.lib README.txt from TK !!
> 1) printf prints a string to the console/a file/the buffer.
> what console/file/buffer exactly do you want to use on the PIC18F?
sorry, i wanted to speak about "sprintf" which outputs not to the console but to a string.
but the problem is the same when i use for example "memcpy", even with the libsdcc
configured as in the README.TXT...
regards,
jeb
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hello
there is a problem with the linker, even with libsdcc.lib in /lib and set up in the .lkr file.
always the same problem :
error: missing definition for symbol "_sprintf", required by "_output\main.o"
i can include : #include "sprintf.c"
but then it is another file that makes problem : _vfprintf
then i include : #include "vfprintf.c"
then it is another one ....
then i include the .c file
then another one...
this can continue very long !
is it normal that one should include all these .c files for the different functions when one needs
to use a function ???! ???
i gave the example with printf, but with memcpy, etc. it's the same !
thanx
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hello,
even if it worked, printf is too big for the simple need i have.
so my problem is simply :
how to do a division par 10 or 100 ?
(in order to isolate the different numbers in decimal writing!)
(asm optimized?)
thanx
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hello,
i have several "modes" in a global variable :
unsigned char mode;
and the value of "mode" is changed by pressing some buttons.
I have :
function Tick()
{
switch (mode)
{ case 1 : Function1 (); break;
case 2 : Function2 (); break;
case 3 : Function3 (); break;
...} }
aren't these tests (with if, switch, etc.) every times Tick is called (so very often !!)
a waste of time ?
is it possible to do pointers to functions ?
example :
pointer ... mode_functionptr;
whose value is changed when the button is pressed.
with then :
function Tick ()
{
mode_functionptr(); //without tests!
}
/////////////////
just another small question :
how to do a "switch/case" on two variables ?
is :
switch(i,j)
{
case (1,0) : ...
case (2,1) : ...
...
}
possible ?
thanx in advance !
[For sale] Midibox with a minimoog interface
in Fleamarket
Posted
Hello,
I've done this midibox several months (oops... it's years, now... !) ago, but
now I have bought (much more expensive) real analog synths, and I don't
use it anymore...
It is designed to control a Minimoog VST Plugin (ex: Arturia Minimoog V, or
other free versions)
If somebody in France or near Strasbourg is interested, please mail me.
(or anywhere else, but I think the shipping will be expensive...)
My mail :
basquin at freesurf dot fr.
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