Text saved in case we do need time actived BF weigths using the BSN scheduler.

applications/lofar2/doc/prestudy/station2_sdp_dsp.txt

@@ -76,6 +76,20 @@ M&C:
     The (x+y) could be implemented as first (x+y) and then *w, or as first weight and then add. 
 
 
+
+Text saved in case we do need time actived BF weigths using the BSN scheduler:
+
+A new set of beamlet weights gets applied at a trigger from the BSN scheduler, at a programmable timestamp
+in the future, or immediately when the timestamp = 0. The timestamp format is the BSN. The BF keeps on using
+the same set until a next trigger.
+The BF weights are stored in a dual page buffer. The buffer swaps when the BSN scheduler issues a trigger at
+the scheduled BSN time instant.
+The existing mms_dp_gain_serial_arr.vhd has a single page coefficients memory. Therefore mms_dp_gain_serial_arr.vhd
+needs to be extended with a g_dual_page boolean generic and a common_paged_ram_crw_crw.vhd. While one set of BF
+weights is written into one page of the coefficients memory, the other page is being used by the BF. The pages
+swap when an input trigger occurs.
+
+
 *******************************************************************************
 * Subband correlator
 *******************************************************************************
@@ -117,4 +131,4 @@ TBB
 * Subband offload
 *******************************************************************************
 
- 
+ 
\ No newline at end of file