The MCH port statistics that log board to board communication problems have been checked and seem to exclude hardware issues. Moreover the keep sample policy is used in both MIR and MAR boards. We will continue the investigation.
A series of tests both open loop and closed loop has been performed on BS. The open loop data show (see figure) that the glitches are still present in the signals genereated with PSDm (tx,ty) but not on those obtained with PSDt (ty_t, tz). We can therefore exclude problems related with the DSP boards. In order to make the debugging easier we changed BS MAR coil configuration: both ty and tz correction are now applied using the MAR board while tx and mirror signals are sent using MIR board.