From 90e678a44207190ca2f07eb3410c45308c797ea7 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Tue, 3 May 2016 16:29:38 +0800
Subject: [PATCH] gateware/nist_qc2: increase DDS bus drive strength. Closes
 #421

---
 artiq/gateware/nist_qc2.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/artiq/gateware/nist_qc2.py b/artiq/gateware/nist_qc2.py
index 12c775fc8..6bab29bcf 100644
--- a/artiq/gateware/nist_qc2.py
+++ b/artiq/gateware/nist_qc2.py
@@ -43,7 +43,7 @@ def get_fmc_adapter_io():
                 Subsignal("wr_n", FPins("FMC:LA24_P")),
                 Subsignal("rd_n", FPins("FMC:LA25_N")),
                 Subsignal("rst", FPins("FMC:LA25_P")),
-                IOStandard("LVTTL")),
+                IOStandard("LVTTL"), Misc("DRIVE=24")),
 
             ("i2c_fmc", next(i2c_fmc),
                 Subsignal("scl", FPins("FMC:IIC_SCL")),