diff --git a/fpga/generator/xlnx_ddr3-artya7-mig.prj b/fpga/generator/xlnx_ddr3-artya7-mig.prj
index 15eb1e5fb..2e86b4950 100644
--- a/fpga/generator/xlnx_ddr3-artya7-mig.prj
+++ b/fpga/generator/xlnx_ddr3-artya7-mig.prj
@@ -43,7 +43,7 @@
 
   <Controller number="0">
     <MemoryDevice>DDR3_SDRAM/Components/MT41J128M16XX-125</MemoryDevice>
-    <TimePeriod>3000</TimePeriod>
+    <TimePeriod>6000</TimePeriod>
     <VccAuxIO>1.8V</VccAuxIO>
     <PHYRatio>4:1</PHYRatio>
     <InputClkFreq>102.564</InputClkFreq>
diff --git a/fpga/generator/xlnx_mmcm.tcl b/fpga/generator/xlnx_mmcm.tcl
index 2f003e7a5..c5a05e1b6 100644
--- a/fpga/generator/xlnx_mmcm.tcl
+++ b/fpga/generator/xlnx_mmcm.tcl
@@ -13,7 +13,7 @@ set_property -dict [list CONFIG.PRIM_IN_FREQ {100.000} \
                         CONFIG.CLKOUT2_USED {true} \
                         CONFIG.CLKOUT3_USED {true} \
                         CONFIG.CLKOUT4_USED {false} \
-                        CONFIG.CLKOUT1_REQUESTED_OUT_FREQ {166.66667} \
+                        CONFIG.CLKOUT1_REQUESTED_OUT_FREQ {166.6667} \
                         CONFIG.CLKOUT2_REQUESTED_OUT_FREQ {200} \
                         CONFIG.CLKOUT3_REQUESTED_OUT_FREQ {20} \
                         CONFIG.CLKIN1_JITTER_PS {10.0} \