failed to find board - green light keeps flashing

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THW_Mark
 
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failed to find board - green light keeps flashing

Post by THW_Mark »

Well, finally i got a usb midi cord, time to check it out. First thing i noticed is, when i power up midisense (without any resistors/switches connected) the green ligt keeps on flashing. When monitoring in midiox, lots of data come in. When i bounce it back to midisense, i do not see a red light blinking.

problem seems to be similar to this topic

unfortunately i had to take pictures with my phone, which are not that good.. anyway:

http://members.chello.nl/c.ven/midisense/midisense1.jpg

http://members.chello.nl/c.ven/midisense/midisense2.jpg

http://members.chello.nl/c.ven/midisense/midisense3.jpg

http://members.chello.nl/c.ven/midisense/midisense4.jpg

Any suggestions?

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THW_Mark
 
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Post by THW_Mark »

hmmm is the ceramic resonator symmetric? ie: could i have placed it in backwards or something? tried to verify firmware with the online version, but it states 'lost connection'

added a logfile: MidiLog.txt

this is what you get if you wire up midisense, capture input on pc, about 4-5 seconds after poweron...

adafruit
 
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Re: failed to find board - green light keeps flashing

Post by adafruit »

THW Mark wrote:Well, finally i got a usb midi cord, time to check it out. First thing i noticed is, when i power up midisense (without any resistors/switches connected) the green ligt keeps on flashing. When
thats normal
monitoring in midiox, lots of data come in. When i bounce it back to midisense, i do not see a red light blinking.
what do you mean "bounce back"

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THW_Mark
 
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Post by THW_Mark »

oh, i wanted to see whether it would receive midi, so i tried to send every incoming signal (the semi random stuff) to the midi in again. but no red light...... i havent seen the multicolor do anything except flash green for sending data.

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Post by adafruit »

if you're sure that your midi device is working, (which is no guarantee) it might be the board assembly.
but its nearly impossible to see anything with the photos you took.
if you can take clear, not-blurry, in-focus, well-lit photos i can see if something is amiss with assembly.

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THW_Mark
 
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Post by THW_Mark »

i must be giving you a headache :oops:

http://members.chello.nl/c.ven/midisense/midisense5.jpg

this is unfortunately as clear as i can get it with this cam + sharpen mask. I dont have another midi device around, but i will check it out soon.

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Post by adafruit »

can you take one of the top?
it looks OK
i would be slightly suspicious of the midi device :)
ill try to come up with a test you can use with midiox

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THW_Mark
 
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Post by THW_Mark »

http://members.chello.nl/c.ven/midisense/midisense6.jpg

this is the topside. Im pretty sure there are no overlapping solder blobs or something. I'm about to check it out at a friends place on another midi device (emu sound card, not a usb unit). Brb :)

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THW_Mark
 
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Post by THW_Mark »

oke, small update... It was (probably) not the midi device, same problem here.

but we found one pin of the midi optocoupler that has a bit of a loose solder connection, i resoldered it and now got sometimes a blipping red light. That is some, but it still won't make a connection. When im back at home tonight i will check all solder points once more...

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Post by adafruit »

ok well you're doing much better now :)
if you can send me the "DEBUG" log that would be good, and also the brand of usbmidi device

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THW_Mark
 
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Post by THW_Mark »

finally back home. 2 am here ^^ Anyway, http://members.chello.nl/c.ven/midisense/midisense1.log is the debugview log, if that was what you wanted to see. Did another check on all solder connections, no strange things. The dip-switches are supposed to be all off? Tried some settings, doesnt change anything.

On every 'sending packet' in the debugview log, i see a red light blipping on the board. The green midi light starts flashing about 3 seconds after power on and it doesnt stop. The usb midi interface wich i used to get the log: its an ESI romI/O 2xOUT 1xIN thing. Yes, i selected the right out/in cable in midisense software. The log for verify firmware is about the same.. sending packet..timeout..sending packet..timeout...


Well, it is bedtime for me, more testing tomorrow..

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THW_Mark
 
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Post by THW_Mark »

well, no progress :(

The red light blips on every sent packet, but there is no response. From boot on, it generates a 'random stream' with midi packets to the out-port.

Any chance the problem is with the firmware or something?

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Post by adafruit »

hmm, double check to make sure you have a 16mhz oscillator

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THW_Mark
 
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Post by THW_Mark »

uhoh....

text on the oscillator says: 8.00M ... it is the same as the image on the adio parts...

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Post by adafruit »

!
:(
well at least we know what the problem is, send mail to support@adafruit with your order # and ill get a new one to you
:)

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