In dspic33F family there are:
DMA RAM
x/y space

Lets say I have ADC aqusitions generating data to DMA RAM alocated space.
I have to apply an algorithm using x/y space. Is there any fast method to copy from DMA RAM to x/y space?

 

We may be able to help if we knew what is x/y space.

 

The x/y space is a special defined RAM that can be used to make special dsp calculation.
eg in C30 compliler you can define :
"fractional abcCoefficient[3] __attribute__ ((section (".xbss, bss, xmemory")));
fractional controlHistory[3] __attribute__ ((section (".ybss, bss, ymemory")));"

Using this you can use the dsp core.