From 5216e551a5b90f8744a4a7e18e531da16d1261ad Mon Sep 17 00:00:00 2001
From: Kristian Lauszus <lauszus@gmail.com>
Date: Thu, 6 Mar 2014 17:23:49 +0100
Subject: Enable user to change the I2C clock frequency by calling setClock in
 the Wire library

---
 libraries/Wire/Wire.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'libraries/Wire/Wire.cpp')

diff --git a/libraries/Wire/Wire.cpp b/libraries/Wire/Wire.cpp
index 4e7a17c..553add7 100644
--- a/libraries/Wire/Wire.cpp
+++ b/libraries/Wire/Wire.cpp
@@ -75,6 +75,11 @@ void TwoWire::begin(int address)
   begin((uint8_t)address);
 }
 
+void TwoWire::setClock(uint32_t frequency)
+{
+  TWBR = ((F_CPU / frequency) - 16) / 2;
+}
+
 uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity, uint8_t sendStop)
 {
   // clamp to buffer length
-- 
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