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After finish my phoenix,all went well, I’ve decided to put better inside all cables and electronic…
But after finish all I found a problem…not all legs moves:-(
So I tested the ssc without bb2 but connecting a servo to the pins from 0 to 3 and from 4 to 7 ,it doesn’t work…
Where is the problem?..
Looking in lynx sequencer all that servo are enable
Can you post some pictures of the board?
Yes I can…
But all seems to be normal…and jumpers too
When I connect servos at others pins all goes well,but when i connect it at 0,1,2,3,4,5,6,7 pins nothing happen
We need to see your wiring. Servo connections, battery connections, botboard, etc. Its a pretty board but we cant tell if its damaged just by looking at it. We need you to connect everything up so we can see the connections and also try to see if other things work.
Its very strange as to why those two banks of four dont work and all the others do. I take it pins 8-11 and 12-16 work ok?
It sounds like the U4 (74HC595) might be broken. That shiftregister control pin 0-7.
8-11 and 12-16 works
U4 broken?!:-((((
How it be happen?!..are u sure zenta that is the problem?..if yes how i can repare it?
battery is a lipo 7,4 3600 ampere…with regulator to 6v
If 8-31 works fine and 0-7 doesn’t work I’m pretty sure U4 is the problem. Only solution is to replace the U4 chip.
EDIT, as long as you don’t need to control more than 24 servo you can just use the other ports. You just need to reassign the ports in the config file (ref. the Phoenix code).
And it’s easy to find that chip?!
I’ve used that ssc really few times…so how it’s possible to that chip is damaged?
And what is the cause?!
The second possibility is to change pins assignment in phoenix code…can u help me in that?
Thanx zenta
The chip is SMD so its a bit tricky to replace, but possible though.
I don’t know the cause. Maybe Jim know more about this?
Changing the pin assignment is very easy.
Just open the config file and look for this:
[code];[SSC PIN NUMBERS]
cRFCoxaPin con P0 ;Rear Right leg Hip Horizontal
cRFFemurPin con P1 ;Rear Right leg Hip Vertical
cRFTibiaPin con P2 ;Rear Right leg Knee
cRMCoxaPin con P4 ;Middle Right leg Hip Horizontal
cRMFemurPin con P5 ;Middle Right leg Hip Vertical
cRMTibiaPin con P6 ;Middle Right leg Knee
[/code]
Just change the pin number to a vacant pin. Ex:
cRFCoxaPin con P12
Thanx zenta for ur help
Changes pin’s assignment seems to be very easy
But before do it i want to understand what is the cause of that problem,
I’ve payed that ssc and it didn’t received any hits or hight voltage use…
If I buy again another ssc 32 I don’t want do again same error ( if i did it )
The thing that make me doubtful is that when ssc is on ( green light on ) and i connect a servo at those pins sametimes servo receive a very short signal…
Servo make a little leap…
So another one seams to had the same problem…
viewtopic.php?f=2&t=7047&start=0
No one knows the cause of that?
It’s possible when everything was moved inside the body that anything could short out? There are tens of thousands of SSC-32’s out there. Two of them have been reported to have had one of these chips either damaged, or just go bad. The chips have 220 ohm resistors on the outputs so they’re not being overdriven…