Press "Enter" to skip to content

Electronics Woes

Completed board, connected via a M-M DB25 cable to a PC, for programming.

After returning home from a really great vacation Sunday morning (more on that later) and sleeping, I got to work on the SDrive NUXX PCBs which had arrived last week. While the boards themselves look good and went together well, I’ve yet to get things working right. I first had some problems getting the chip programmed, but patching two missing traces (my fault) and powering the target device sorted that out.

Tonight I found that as soon as I set the fuses on the AVR, even after a successful program, the chip can no longer be accessed by the programmer. I believe this is because the programmer is then trying to talk to the chip at too high of a rate, but I’m not completely sure. Also, the option for setting the programmer to the slower mode (using PonyProg2000) is seeming to not work, so I’m not completely sure what’s happening.

Now it’s time to just relax and get ready for tomorrow. That’s another day of work, then maybe some bike riding. After that I can get back to working on this, and hopefully figure it out.

More photos are available on pages 2 and 3 of the SDrive NUXX album.

Leave a Reply