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Topic: Building a function generator (Read 3999 times) previous topic - next topic

bubulindo

if you have a mega board, parallel is the way to go! ;)
This... is a hobby.

baum

Not neccesarily. You only need 17 pins for the dac. (using the analog inputs as outs).

compuslave

I have uno and I also have an extra micro-controller for it, since I'm prone to cook such things.
Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so screw em'

baum


compuslave

Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so screw em'

bubulindo


Not neccesarily. You only need 17 pins for the dac. (using the analog inputs as outs).


Yes... if you want to use up all the pins in the arduino. That kinda makes it a bit limited. Say you wanted a function generator that could work without being connected to the computer.

My comment was also referring the possibility of using the external memory bus. With which you could put in a bit more RAM/FLASH/EEPROM and have even crazier waveforms going on, that is if you create them using tables.

I wouldn't go for that though... most of the functions on the function generator can be programmed as a proper time-based function, that would make it far more flexible with better results, although it would be a bit tricky to implement.

This... is a hobby.

baum

True. Then you may want a mega.

u0421793


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