From 39d5ca11f45efe48f655cbec76d21b92bd46a176 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Thu, 28 Nov 2019 22:03:26 +0800
Subject: [PATCH] si549: increase I2C frequency

---
 artiq/firmware/libboard_artiq/wrpll.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/artiq/firmware/libboard_artiq/wrpll.rs b/artiq/firmware/libboard_artiq/wrpll.rs
index d27b90767..40ae88e43 100644
--- a/artiq/firmware/libboard_artiq/wrpll.rs
+++ b/artiq/firmware/libboard_artiq/wrpll.rs
@@ -9,7 +9,7 @@ mod i2c {
         Helper
     }
 
-    fn half_period() { clock::spin_us(100) }
+    fn half_period() { clock::spin_us(10) }
     const SDA_MASK: u8 = 2;
     const SCL_MASK: u8 = 1;