That's 184 RPS, but he said he has 2048 points per rotation. I'm guessing a quadrature encoder that he has to read, determine direction and increment/decrement 374k times per second. I can see why he moved that part to hardware.
----- Original Message -----
From: enkitec@gmail.com
To: AVR-Chat@yahoogroups.com
Sent: Wednesday, August 22, 2012 2:30:35 PM
Subject: [AVR-Chat] Re: fast controller
On 22-Aug-12 17:12, farshid alipour wrote:
> perhaps it is possible to use AVR i'll try it .i made a up/down counter by a mega16 for counting an encoder it was 2048 pulse when i rotate it slowly there was no any problem but when i rotate it over 500rpm it lost some pulses finally i made it by TTL ICs and now it work at 11000rpm.AVRs isnot fast enough for this project.
11000 RPM is just 184 RPS. It is awfully slow for any AVR. My
guess your program is too slow, not the AVR.
Mark
------------------------------------Message
Re: [AVR-Chat] Re: fast controller
2012-08-22 by Philippe Habib