Tuesday, February 28, 2012

Video Blog Episode #7 - Yihua 8508D Internals, Operation, and Repair

In this episode I do a semi-teardown and review of my 8508D rework station. Along the way I come across some issues with the unit, and I show the path I take to fixing it.

Friday, February 17, 2012

Video Blog Episode #6 - Yihua 8508D Hot Air Rework Station Unboxing

In this short episode I show the unboxing of my new Yihua 8508D hot air rework station that I purchased from eBay.

In another video I'll show it in action, as well as a quick tear-down.

Monday, February 13, 2012

Video Blog Episode #5 - Decimation and Intrpolation

In this episode I talk about decimation and interpolation (aka down- and up-sampling) of a sampled signal. I go over how you would accomplish this, the effect of these actions in the frequency domain, and what you need to do to correct for the introduced errors.

Saturday, February 4, 2012

Video Blog Episode #4 - Signal Sampling

In this episode I talk about how you do not necessarily need to sample at 2x the maximum signal frequency.

Wednesday, February 1, 2012

Bootloader solved!

Despite the monitor issues I was having, I've managed to a bootloader running on the adapter. I spent a little bit of time today moving around some traces to make space for a reset button for the bootloader.

Everything is looking really good now, so I'm back on track for releasing all the source, and with that, making the adapter available for purchase!

I've also gotten a few more Canadian PCB manufacturing quotes, but I'm still waiting on a few more. We'll have to see what the final decision is going to be...

PS I got a new monitor, so hopefully no more rage-inducing screen flickering for me!