machine/sirius_250M/*: use 2298 for FOFB rate

We need to have an integer number of ADC periods between ADC and FOFB to suppress all switching harmonics. In Sirius 250 case, 2298/383 = 6, but 1960/383 = 5.1175, which is not integer.
lnls-dig · Jun 9, 2016 · e684a24 · e684a24
1 parent a41d123
commit e684a24
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/hdl/modules/machine/sirius_250M/machine_pkg.vhd b/hdl/modules/machine/sirius_250M/machine_pkg.vhd
@@ -61,7 +61,7 @@ package machine_pkg is
 
   constant c_pos_calc_fofb_cic_delay            : natural := 1;
   constant c_pos_calc_fofb_cic_stages           : natural := 2;
-  constant c_pos_calc_fofb_ratio                : natural := 1960;
+  constant c_pos_calc_fofb_ratio                : natural := 2298;
   constant c_pos_calc_fofb_decim_width          : natural := 32;
 
   constant c_pos_calc_monit1_cic_delay          : natural := 1;