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no pinheaders on dev board?
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mde
Joined: 25 Oct 2012, 18:27 Posts: 5
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Hi everybody,
I just received my carambola incl. dev board and was surprised to find that there is not a single pinheader soldered onto the board except for the ones holding the carambola module itself. From the product pictures in the gallery and datasheet I got the impresion that those headers should be on (J1, J5, J7). So my question is: is this a manufacturing/qc screwup or are they really not supposed to be on there and people will have to do that by themselves?
Thanks, Michael
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25 Oct 2012, 18:33 |
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gedass
Joined: 07 Dec 2011, 16:01 Posts: 525 Location: Lithuania
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These pin headers are already installed on motherboard pcb.Default configuration: USB master mode, +5V connected to USB, serial port is connected to console. If you need different configuration then cut jumpers on pcb and put pin header.
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26 Oct 2012, 05:03 |
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mde
Joined: 25 Oct 2012, 18:27 Posts: 5
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What exactly do you mean by "installed"? My dev board has no pin headers on J1, J7, J9, J10 or J5. I'm looking at empty holes there. All the images I found online show pins with jumpers in those places - except for J5 which I have seen empty on other boards as well. I'm attaching a (low quality) snapshot to show what I mean. If those pin headers and jumpers are not part of the package, then that's fine - but it would be nice if your product pictures would not suggest they should be expected to be there then...
Attachments:
File comment: dev board
dev_board.jpg [ 574.48 KiB | Viewed 2741 times ]
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26 Oct 2012, 16:10 |
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gedass
Joined: 07 Dec 2011, 16:01 Posts: 525 Location: Lithuania
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In the newest pcb revision J1,J7,J9,J10 are already connected on pcb using small wire route. J5 we decided to no put because one customer want to have header, another - socket, third - not installed. All revisions of motherboards pcb has same functionality.
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26 Oct 2012, 16:27 |
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mde
Joined: 25 Oct 2012, 18:27 Posts: 5
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OK, thanks. It's a little more clear now. I can certainly understand the point in not putting anything on J5. The other defaults sound reasonable. What was confusing was the pictures not matching my device.
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27 Oct 2012, 09:38 |
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