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QUAD IIc - Not Working


cosmosuave
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It appears that my QUAD IIc is not working... 

 

When I boot up the SEQV4 and hit play all the led's on the QUAD II will blip on but when I stop the sequencer and restart it the led's will not light... Also noticed when I want to set midi clock for the ports on the QUAD IIc the In /Out option does not work... If I select Menu / Event / Port and select QUAD IIc I get the following ... IIC1* IIC2* IIC3* IIC4*...

 

I believe all the connections are correct is there something I need to add to the config file?

 

post-5116-0-84282600-1406592586_thumb.jppost-5116-0-31128400-1406592609_thumb.jppost-5116-0-87145100-1406592647_thumb.jp

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No changes are required in any config file.

IIC1*...IIC4* (the Asterisk) indicates, that the communication with the appr. IIC MIDI chips was failing.

 

Please use the iic_midi diagnosis app for further debugging at the hardware side (connections, soldering joints, etc...)

It can be found at the bottom of this page: http://www.ucapps.de/mios32_download.html

 

Test procedure: http://svnmios.midibox.org/filedetails.php?repname=svn.mios32&path=%2Ftrunk%2Fapps%2Ftroubleshooting%2Fiic_midi%2FREADME.txt

 

Best Regards, Thorsten.

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Hi,

 

you´d connect your Core (e.g. via USB), open MIOS Studio and upload the app according to your 32-bit core Version (the project.hex in the MBHP_CORE_LPC17 directory).

 

Afterwards, the core is restarted, then you should see status messages in the MIOS Studio console, if I remember right, you can also perform basic test commands there.

The console logs, if the IIC modules are detected, or not. You can try to disconnect and reconnect the quad IIC board (while the Core is running and connected to MIOS Studio) and see what happens.

 

Most often, it is a wiring problem, or maybe caused by a misplaced component on the Quad IIC boards - if no connection is shown in the test-app, you should re-check component placing on your IIC board.

 

Many greets,

Peter

Edited by Hawkeye
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Thanks Hawkeye... I was doing as you describe but I think I was having issues with my usb connection seeing the core... MIOS was seeing my sd card though... Will give this another try when my kids are not running around... Trying to troubleshoot and wrangling kids is not the best environment...

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  • 3 weeks later...

Not much happened running MIOS... Pulled the QUAD IIc out and will go over the solder connections... Just want to verify is there only one connection to the QUAD IIc via J4a (LPC) to J4 (QUAD IIc)? The 2x5 box header I assume is to connect other QUAD IIc modules as that is connected to nothing...

 

Still not working after the following...

 

Rechecked component placement and orientation...

 

Pulled chips and reseated

 

Reheated all solder connections...

 

Try'd MIOS troubleshooting but not getting far with it...

 

It seems the QUAD IIC works kind of... When I power on the the sequencer and then hit play all 4 led's on the QUAD IIc flash once then go out... When I stop the sequencer and hit play the led's will not flash they only flash after the sequencer has been rebooted... Is there code on the 4 pics that could be corrupted causing this? i am not getting far with this so I may just have to buy another QUAD II c module... 

Edited by cosmosuave
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Okay I think I may be onto something here as I have the QUAD IIc connected to J4b and not J4a and that my be causing my issues ... See below... Will switch to J4a tonight and hope it works...

 

J4A 4 IIC port. Interface to BankSticks or to MBHP_IIC_* modules like MBHP_IIC_MIDI. J4B 4 A second IIC port, which can also be used as an additional MIDI IN/OUT port (MIDI IN4/OUT4) if enabled in MIOS32 (add "#define MIOS32_UART_NUM 4" to the mios32_config.h file).
MIDI IN4 will be available on the J4B.SC. If a 6N138 based optocoupler circuit should be connected, replace the 2.2k pull-up R10 by 1k, or add a second 2.2k in parallel to get 1.1k effectively.
MIDI OUT4 will be available on the J4B.SD pin, it isn't required to remove R9 if already soldered - it doesn't hurt.
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