From f633c62e8d2df46659174c5f6672011a0e3b4400 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Mon, 9 Dec 2019 17:22:58 +0800
Subject: [PATCH] wrpll: speed up si549 i2c access

---
 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 826a643aa..22072f403 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(10) }
+    fn half_period() { clock::spin_us(1) }
     const SDA_MASK: u8 = 2;
     const SCL_MASK: u8 = 1;