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Introduction After learning about the problems with the ADC and DAC of the XMega I gave up building this power supply until recently when I decided to see for myself how bad things are. I’ve used the header board, a 2.56V reference some potentiometers and a lot of patience.
DAC On the DAC side [...] During my work for the digital power supply I needed to start playing with some micros from the XMEGA family, that is why I build this little header board. There is a XMEGA32A4 micro on it, which is the one that I intend to use on my power supply. Click here to download the Eagle [...] Update I’ve found some information regarding poor performance of the ADC and DAC of the XMEGA micros (see some info here, here, here and here). So far there are some workarounds and new devices might have fixed some problems, but I will not take this micro into account until i have clear info that it [...] |
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