Atmel kindly gave me an Xplain Xmega board at one of their Xmega seminars. It’s a useful tool for ATXmega development, but it does have a couple of problems. I thought I’d mention the ones I’ve tripped over, in case…
Atmel Xmega printf HowTo
This is a surprisingly common question. When using WinAVR, how do you get printf() working on an Atmel Xmega processor? Hopefully this post will help explain how. First of all, this documentation page has some good information regarding the different…
Blackfin JPEG Encoding – an update
A little while ago I wrote about implementing fast JPEG encoding on an Analog Devices Blackfin. See the original post here: Blackfin Fast JPEG Encoding Since then I’ve moved to a new hardware platform, with a different blackfin processor and…
AVR Xmega and AVRISP Mk2
Recently I’ve been doing some Atmel AVR Xmega work. The Atmel website says that their low-cost programmer, the AVRISP2, can be used to program an xmega device. But their (current) documentation would appear to tell a very different story. If…
Free SPICE Analog Circuit Simulator
Those in the know, know, that if you want to play with analog circuits, using a simulator first is a really good idea. There are many analog circuit simulators out there, some free, some mega-bucks, but the most common of…
SD Card Locks Don’t Lock
Here’s a little known fact about SD Cards. The little “lock” switch on the side of the card? It doesn’t lock the card. This is a photo of a pretty typical SD card. On the left you can see the…
Blackfin Fast JPEG Encoding
Recently I’ve been doing a lot of embedded uClinux programming for the Analog Devices Blackfin BF537 processor. Writing drivers, application code, things like that. It’s a lot of fun. One of the things I’d been battling with was finding a…
Welec Oscilloscope – Watch Out
Last year I was in the market for a cheap digital oscilloscope. After much looking around I finally settled on a Wittig Welec W2022A oscilloscope. www.welec.de 2 channels, colour VGA display, 1 GS/sec sampling rate, it looked awesome. I purchased…