is any one have a code for mp3 decoder on at91sam7?(porting for at91sam7)
i read some document that for decoding 44.1 khz mp3 need 26 MHZ clock.
and i think if i run the at91sam7s128 @ 55 MHz with one wait state get 55/2= 27.5 Mhz access from flash and enough for decoding.
is it true or not?(any test)
can i run the code in thumb mode to run 48 khz mp3?( need 30 mhz clock and in thumb mode it can get near to 55mhz for linear code)
i also think that run all code from the RAM (~37 kb) with at91sam7s256 but is not good solution for price.(too high)
so the only best at91sam7 is s128 that have 32kb ram that use 21kb data for mp3decode and 26kb code run from
flash formp3 decoder code.