Today I have received my XC-3 LED Tile kit from digikey. After physical inspection I got shocked to see very bad soldering work in the XTAG board. It is found that pin no. 3-4 & 31-32 is wrongly shorted with bad solder. I am quite sure the board is not working & it has been send without test. I am worried to apply power for any farther damage.
Now my situation is like that I have got a car to drive without steering.
I don’t know what to do.
In this situation I would like to say that I am a new bee of XMOS, till date I use simulator to learn XMOS but I am such a lucky guy who don’t have any way to work in a real system even purchasing a costly XMOS kit.
Hope XMOS team will show some responsibility in this issue.
please find the attached files.
regards
jags
Panic for very bad soldering work in the XTAG board
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Panic for very bad soldering work in the XTAG board
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I can not answer for sure for the XTAG board, but maybe i can post the gerber for it if I find it on the xmos site.
(It's the bottom layer seem from the top, e.g. it is mirrored)
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Probably not the most confused programmer anymore on the XCORE forum.
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At least not worth a panic ;)
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Probably not the most confused programmer anymore on the XCORE forum.
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for 3-4 it is VCC that is connected to reset#. ok it is no problem.lilltroll wrote: Well it is VCC that is connected to reset# and VCCIOB connected to one bus pin.
At least not worth a panic ;)
But 31-32 VCCIOB connected to one bus pin. Is it normal? Are you sure?
Any way I have connected my PC through XTAG to XC-3 board & found XDE is detecting both XTAG & XC-3 board.
I connect a ethernet cable between XC-3 and my PC (IP: 192.168.0.90) and try ping to 192.168.0.254 and found reply. I think the board is working. What do you think?
After some time I touch the upper surface of XMOS G4 controller and fill to much hot. I could not able to place my finger for long time.
Is that much heat is normal for G4? ro there is any problem in my G4 chip?
regards
jags
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Yes I'm sure, since it is connected like that in the schematic, several other bus pins is connected to GND as well.jagspaul wrote:for 3-4 it is VCC that is connected to reset#. ok it is no problem.lilltroll wrote: Well it is VCC that is connected to reset# and VCCIOB connected to one bus pin.
At least not worth a panic ;)
But 31-32 VCCIOB connected to one bus pin. Is it normal? Are you sure?
Any way I have connected my PC through XTAG to XC-3 board & found XDE is detecting both XTAG & XC-3 board.
I connect a ethernet cable between XC-3 and my PC (IP: 192.168.0.90) and try ping to 192.168.0.254 and found reply. I think the board is working. What do you think?
After some time I touch the upper surface of XMOS G4 controller and fill to much hot. I could not able to place my finger for long time.
Is that much heat is normal for G4? ro there is any problem in my G4 chip?
regards
jags
The G series doesn't have much for power saving when idle, that means that it will produce around 1.6W of heat, and ~0.4W/ cm^2 will become hot, but it will not fry.
Probably not the most confused programmer anymore on the XCORE forum.
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Ok thanks a lot.
Now I can start play with my XC-3 board.
Thanks & regards
jags
Now I can start play with my XC-3 board.
Thanks & regards
jags
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I just checked one of the XTAGs that was supplied with my XC-2 boards, and those leads on the FTDI chip are connected.