www.megadrum.info

I would like to know the sampling rate of every input.
Is it different enter 12MHz version and 16MHz version ?

Thanks.

The sampling rate is the same for every input but can be changed to prefer some input over others.
The sampling rate depends on crystal frequency . The higher crystal frequency the higher sampling rate. I can provide overclocked to 20MHz firmware versions for Atmega8 and Artmega32. I'm expecting Atmega324 and Atmega644 to arrive and I'll post 20MHz non-overclocked firmware versions for them.

dmitri wrote:The sampling rate is the same for every input but can be changed to prefer some input over others.

Well, this is not entirely true. In particular cases a particular input gets a higher sampling preference. I won't go into details here:)

Can you say me the sampling frequency, for one channel, for the 16MHz version ?

Can you tell me the programming language you use (ASM, C, ...) ?
Would it be mobile on PIC (18F4550, DSPIC, ...) ?

I am curious

Synthex wrote:Can you say me the sampling frequency, for one channel, for the 16MHz version ?

Can you tell me the programming language you use (ASM, C, ...) ?
Would it be mobile on PIC (18F4550, DSPIC, ...) ?

I am curious

Sorry, Synthex, I won't go into details here:) All I can say is that I use AVR-GCC with some ASM and I don't think it could be ported to PIC at present since PIC doesn't have enough power. I didn't look in depth at dsPIC so I cannot comment on this for now. I also looked at MSP430 and various ARM chips and I think for this particular DIY project I chose the best available microcontroller at the time.

Could you provide overclocked to 20MHz firmware versions for Atmega32 ?
Thanks.

Here it is

i've been advised that overclocking the micro can make it un-reliable and cause problems writing to the eeprom.

As with overclocking a computer cpu, your mileage may vary with overclocking a microcontroller. It's not like a commercial product where you must not exceed manufactures ratings:)