Hello, I'm using a Virtex-II Pro with 1 PowerPC 405. All worked very well until the moment I had to add big FIR filters (2 D.A. with 85 taps and 2 MAC with 17 taps). Now, at any time, the programm stop: the FPGA part continue to work but the PPC part doesn't work anymore. The only solution to continue is to reset the board.
Is it because the number of slices occupied grow up from 48 % to more than
75 % and it's to big for the PPC? Does someone have find the same problem ?
My configuration: PPC @ 300 MHz
16ko ISOCM (for PPC instructions)
16ko PLB BRAM (for PPC data)
32 ko DOCM BRAM (use as dual port between "PPC part" and "FPGA part") FPGA with external clock at 60 MHz (multiply by 2 with DCM)
Thank you for our help.
Pierre