add pulldown to control pins

diff --git a/pinout/dirich.lpf b/pinout/dirich.lpf
index 13383ffc7bddb02e6b158af9c733e4fc53721f2d..e31383d27a0ab5d72b0d47faae89b10d5e3c8fad 100644 (file)
--- a/pinout/dirich.lpf
+++ b/pinout/dirich.lpf
@@ -114,8 +114,10 @@ LOCATE COMP "SIG[2]"                           SITE "N5";
 LOCATE COMP "SIG[3]"                           SITE "M5";
 LOCATE COMP "SIG[4]"                           SITE "M4";
 # LOCATE COMP "SIG[5]"                           SITE "L5";
-DEFINE PORT GROUP "SIG_group" "SIG*" ;
-IOBUF GROUP  "SIG_group" IO_TYPE=LVCMOS25  DRIVE=8 BANK_VCCIO=2.5;
+IOBUF PORT    "SIG[1]" IO_TYPE=LVCMOS25  DRIVE=8 BANK_VCCIO=2.5 PULLMODE=DOWN;
+IOBUF PORT    "SIG[2]" IO_TYPE=LVCMOS25  DRIVE=8 BANK_VCCIO=2.5;
+IOBUF PORT    "SIG[3]" IO_TYPE=LVCMOS25  DRIVE=8 BANK_VCCIO=2.5;
+IOBUF PORT    "SIG[4]" IO_TYPE=LVCMOS25  DRIVE=8 BANK_VCCIO=2.5;
 
 
 LOCATE COMP "FLASH_CLK"                        SITE "U1";