Problem with FFT example, MCU 33EP512MU810

[riclerici]

Hello all: Please, I need some guide for run FFT example with 33ep512mu810, EasyPicFusionv7 board. MikroC issues "not enough RAM", Trouble seems to be with ydata space although I read in datasheet this MCU have 16K for ydata . I changed Input_Samples array to xdata space with no results. May anyone tell me what's wrong?

[stefan.filipovic]

Hi,

For a dsPIC33EP family, you need to define InputSamples in Y data space as a far memory qualifier (as shown below). Please read the FFT Library help file.

Code: Select all

far ydata unsigned InputSamples[NUM_OF_SAMPLES * 2];

Also, you will need to explicit typecast InputSamples array wherever it is called as an argument of the memset function as shown below.

Code: Select all

memset((unsigned *)InputSamples, 0, 1024); 

Kind regards,

[riclerici]

Hi Stefan: thanks for your aid, problem solved. FFT example is running OK. Best regards.

[stefan.filipovic]

Hi,

You're welcome.

Kind regards,