Hello,
We're currently working on a design running on a Virtex4 SX35. That design uses most of the resources of the FPGA (around 80% of the slices and 50% or the BRAMs/multipliers). We're working on the AVNET SX35 kit with a VGA extension card and a sdram expension card.
Depending of the datafiles we send, sometimes it completly deconfigure the FPGA ... done goes de-asserted and nothing is processing anymore ... But that behavior is not deterministric, sometimes it can process for one minute and then deconfigure, or sometimes it just can't even process 1 second without crashing ... Apparently the more "heavy" is the datastream, then faster it will crash.
Anyone would have an idea of what's going on there ?
Sylvain