Hello we are trying to bring up C6778 DSP in front of SRIO switch IDT cps-1848
We are successfully going through the init phase with revision A/B using Switch and dsp EVM
but on our board with revision C of the switch we fail to get port ok on the DSP or the switch.
A few points to mention:
the switch and dsp are trying to connect at 4x 3.125 (we tried other configuration but it didnt work)
the switch wakes is at port enable
we couldn't identify any errors
besides 8/10 bit decoding errors on the switch side.
A few differences:
on revision C the switch wakes up with it ports in output enable,
the switch is configured to long run (long reach),
revision C vmin=1 while in A/B it equals 0
we have tried to change vmin of the dsp to 15 but that didnt change
Any Ideas?
Tks
Ilay
