FW: [sdiy] Sound synthesis with microcontrollers

[Trevor Page]

If we're only talking about PICs and AVRs, then these are eight-bit
processors. 

I'm not fully up to date with AVRs but I think the ATmega8515 offers up
to 16MIPS throughput, when using a 16MHz external clock. I guess the
actual throughput you get depends upon your actual code however since
the number of cycles taken to execute an instruction varies on the AVR.
The PIC18Fxx2 range on the other hand offer 10MIPS with 40MHz xtal
(giving 10MHz internal clock). Most instructions on the PIC take one
internal cycle however and are 16-bits wide. So comparing relative
performance of processors isn't a straightforward thing. 

But hopefully that will give you some idea. 

Microcontrollers have advanced to the point now where for very little
money you can buy a device that has enough power to perform some basic
DSP type functions. 

Trev 


> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl 
> [mailto:owner-synth-diy at dropmix.xs4all.nl] On Behalf Of jbv
> Sent: 28 June 2003 18:19
> To: 'SDIY' 
> Subject: Re: [sdiy] Sound synthesis with microcontrollers
> 
> 
> Hi list,
> 
> Regarding all those uC you guys mention :
> are they 8 or 16 bits ?
> 
> And when you say "they're very fast", at
> which frequency clock do they actually run ?
> 
> Best,
> JB
> 
> 
> 
>