recording to flash memory project

[eleclee]

hi, im doing this project and im new to electronics so im learning as im doing it. i want to create a circuit which can record from a mic to flash memory, i need 192kbps sampling rate. and want the microcontroller ( if thats what i require to to time and date stamp the recordings) as i understand i need to go . mic-------adc--------microcontroller----------flash memory. is this right and does anyone know the best way to go about it please?

do i need to manually program the microcontroller myself or can i download a program and load it in?

 

[Nigel Goodwin]

192kbps is beyond the capability of common micro-controllers, so I think you're probably going to struggle meeting your requirements.

 

[eleclee]

cheers nigel, you say common microcontrollers but there must be some out there that can do it? if not what other options do i have, can i run 2 in parralel? halving the work load of each microcontroller. excuse my ignorance if this is crazy talk but like i said im learning as i go along.

 

[Styx]

put down a CPLD/FPGA, small FPGA's are quite cheap these days

 

[Sceadwian]

A 16mhz micro controller should be able to handle throwing a few bytes a round at 192khz. Though 192khz 16bit audio is going to fill up something like 375kb's a second, or a gig in 45 minutes, so the speed of the flash memory write itself would be a determining factor. This would not allow you ANY kind of processing though, the MCU would be hard up to just to route the data and have a few cycles left over for housekeeping.