[sdiy] New digital synthesis projects under way

[Eric Brombaugh]

Thanks Graham,

Now that I've gotten some experience with SMD under my belt I'm pretty 
happy with it. I find some distinct advantages:

* PC boards are smaller (cheaper to fab)
* Ground planes are more contiguous (fewer thru-holes = better 
distribution of supplies on back of board)
* Assembly is faster (don't have to flip the boards to solder & clip leads)
* Passive components are cheaper
* Component storage is more compact (100s on a strip of tape)

Eric

Graham Atkins wrote:
> Nice boards Eric, look very promising. The SMC part may put some
> people off, but as SMC is here to stay we need to get used to it........
> 
> have you noticed how commercial soldering pencils have become so
> tiny lately !. Seriously I think this "modular" digital approach is what a
> lot of people have been thinking about for some time but you are in the
> lead at the moment. Look at how well the Midibox project is doing.
> 
> Graham
> 
> On 19 Jul 2009, at 16:47, Eric Brombaugh wrote:
> 
>> Just a quick update on the dsPIC synthesis boards I'm working on. I've 
>> gotten the prototype PCBs back from the fab and have assembled two of 
>> them to begin testing. So far everything appears to be working as 
>> intended, including the dsPIC processors, CV / Pot signal 
>> conditioning, codec and audio I/O buffering. I still need to test out 
>> the external RAM and EEPROM, as well as the MIDI input.
>>
>> More details here, including photos of assembled boards:
>>
>> http://members.cox.net/ebrombaugh1/synth/dsPIC_sp/index.html
>>
>> http://members.cox.net/ebrombaugh1/synth/dsPIC_adac/index.html
>>
>> I'll post more as I get further into the firmware development.
>>
>> Eric
>> _______________________________________________
>> Synth-diy mailing list
>> Synth-diy at dropmix.xs4all.nl
>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>>
> 
> 
>