EeeTop – Part C

Posted 2009.05.28 16.03 in Pointless Blather by Stephanie

So, I got the graphics working right by using Ubuntu 9.04. I had increased the RAM and hard drive, and was looking to install Bluetooth.┬áBy now I’m getting bored of this story, so I’ll try and make this short.

I was thinking about tapping into one of the two unused ports on the GL850 USB hub chip. This is a 48-pin LQFP package, with 12 pins per side, and a pin-spacing of 1/2mm from pin to pin, with a gap of 1/5mm between pins. I have soldered directly to chips with pin-spacing this tight before, but it’s very, very difficult. And in this case, the risk of failure is losing the webcam, the SD card reader, and possibly wrecking the whole motherboard.

So I mulled it over for 2 days before it hit me – instead of tapping one of the unused ports on the GL850, just grab one of the existing USB ports. With 6 ports, there’s no way I’d use them all, or even half of them. I could just tap one and wire it internally rather than externally!

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