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Posts posted by Marxon
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I bought it from eBay. Just search "2 in 1 wire cutter".
I can confirm what kpete said, small wires with solid copper sometimes break off.
If this happens, unhook one of the two "return springs" and try if it works better.
Best regards
Marxon
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Thank you Shuriken!
The link should work now.
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Hi Midiboxers,
I want to show you a very useful tool.
A wire cutter with built-in wire stripper.
It works really good. I don't know how I could have lived without it before :smile:
Here is a small video:
Best regards
Marxon -
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Sorry my fault!
I overlooked that MIOS Studio reports a warning during uploading the .ngc
which clearly says pattern n>4 are not supported.
Marxon
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Hi Ralf,
simple question: did you forget to upload your updated setup.asm? :smile:
Best regards
Marxon
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Hi,
i noticed that somehow max 4 led patterns are possible.
Patterns n>=5 are not working. There is also no debug output from MIOS Studio.
Maybe it is a bug.
Best regards
Marxon
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Hi Yogi,
your Synth is a great project for my spring holiday :)
I would be very grateful if you give me your schematics and documents.
Best regards
Marxon
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Hi electrodancer,
would you also trade against some other Midibox stuff?
I have some SIDs, PICs, LEDs, Bargraphs, Potis and much more.
Best regards
Marxon
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Hi,
I have a suggestion for the SID Testtone application:
How about modifying the application, so that it not just generates a simple sine tone
but plays a whole sequence with changing oscillators and filters?
This would be a fast and easy way to test whether a SID chip is completely working or not.
Best regards
Marxon
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As said the STM is not supported but it is recommended for other cores running MIOS32 applications (including the LPC)
because it has a higher robustness of SysEx transfers and better a performance then the windows legacy driver.
The GM5 driver also gives multi client capabilities.
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Sorry there is no possibility.
It was discussed in past:
The STM32F401 is very limited, most major applications (such as MBNG, MBSEQ) wouldn't fit into the small flash memory.However, before you throw it away, you could send it to me so that I can provide (and test) a MIOS32 variant for this chip for the case that somebody want's to use it for less complex applications like MIDIO128
Best Regards, Thorsten.
Where did you ordered your board?
Can you send a link?
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You dont need to install a driver.
The driver you downloaded is the GM5 driver and in the description is also written that the STM is not supported . You can use it as alternative to the legacy ("onboard") driver for other cores.
After you connect the Core Module, wait until your operating system has found the interface,
the driver will be installed automatically.
Look in your device manager if some new hardware (usb audio device) is detected.
If nothing happens then there is something wrong.
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So you successfully uploaded the MIOS32 bootloader app to your STM?
After flashing you have to use the STM Micro USB port instead the Mini USB port, maybe you missed that?
Best regards
Marxon
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The main problem was that my AINSER board did not worked properly.
I got only random values... Then I noticed that the uc-link and digital-power LEDs remains onif the core gets disconnected.To be sure that not maybe the board causes this issue I put the MCP on my experimentation board,connected Vref to 5V and the issue was still there. -
Hi Pete,
thank you for your help!
Great news:
When digging through my IC-box, I fortunately found another MCP3208.
With this one i meassure no voltage on pin 20 and my AINSER board is working again :smile:
So the old MCP3208 must be faulty.
Best regards
Marxon
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Hi Midiboxers,
is it normal that there is some voltage on pin 20 (Vdd)
if only pin 19 (Vref) is connected to power?
I measure 4,3 Volt. Maybe the chip is faulty?
Best regards
Marxon
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Ok thank you for clarification Thorsten.
Best regards
Marxon
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UPDATE
Sometimes strange things happen:After doing some other work on the Midibox without changing anything relevantthe problem has gone. :smile:Nevertheless thank you all for your help.Have a nice weekend.Best regardsMarxon -
Did you also set the correct ID in MIOS Studio itself?
Try to set it to 1.
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I would very much doubt that the double assigning of IDs plays a role if it works three times..
Yes a messed up wiring would also affect the other LEDs.
How difficult would it be to swap your displays. E.g. swap display 3 & 4 and see if it is still display 4 which makes the trouble? Just to try to narrow down the problem.I allready swaped the output connections of the sr_dout_sel shift register.
It turns out that only LED_MATRIX:1 has this strange behavoir.
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What does Thorsten say about it?
Because MIOS allready has a software debouncing function.
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Hi,
what else does MIOS Studio send and receive when you try to upload Mios8?
Scaling 40 leds over one pattern
in MIDIbox NG
Posted · Edited by Marxon
Hi all,
I like to use a 40 segment led bargraph and connected it like a 8x5 matrix.
To control it with one single CC, i use five events with different ranges.
I know it is not possible to spread 40 leds perfectly over a range from 0 to 127.
But somehow the led distribution is very uneven.
Here is a diagramm to show what happens.
Does somebody know where the problem
is or what i´m doing wrong?
Thanks for your help!
Best regards
Marxon