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Monthly Archives for June 2015
An earlier play-v6 version
I started working on play-v6 in the first days of December 2013 and in about three weeks I could play “Jingle Bells”: in time for Christmas :-) That early version (450 git commits ago) had lots of limitations but reproduced … Continue reading
New toy
It is programmable but it does not (usually) run a program: it is an FPGA evaluation and learning board. For lazy designers like myself, it beats building circuit prototypes the way I used to… ‘some’ time ago: This video card … Continue reading
Bit depth, PWM and frequency
I have briefly shown how to resample a digital audio recording to play it out at a different pitch (i.e. at a different frequency). Using PWM (pulse-width modulation) as a form of DAC (digital to analog converter) introduces some additional … Continue reading