From a4479e51fbcea415f7f13c565f91ac61c2be88c5 Mon Sep 17 00:00:00 2001
From: Harry Ho <hh@m-labs.hk>
Date: Tue, 24 Nov 2020 10:58:11 +0800
Subject: [PATCH] update ustc3

---
 ustc3.json | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ustc3.json b/ustc3.json
index 8ef377e..412ce8a 100644
--- a/ustc3.json
+++ b/ustc3.json
@@ -4,6 +4,7 @@
     "hw_rev": "v1.1",
     "base": "standalone",
     "core_addr": "192.168.1.75",
+    "ext_ref_frequency": 10e6,
     "peripherals": [
         {
             "type": "dio",