From a6627709f7348dcfdcb7cd87a24ba7a80730487b Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Fri, 12 Oct 2018 10:47:37 +0200
Subject: MSP430 I2C: Configurable I2C frequency

---
 src/arch/msp430fr5969lp/driver/i2c.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/arch/msp430fr5969lp/driver/i2c.cc b/src/arch/msp430fr5969lp/driver/i2c.cc
index 55f8591..be41a50 100644
--- a/src/arch/msp430fr5969lp/driver/i2c.cc
+++ b/src/arch/msp430fr5969lp/driver/i2c.cc
@@ -8,7 +8,7 @@ signed char I2C::setup()
 {
 	UCB0CTL1 = UCSWRST;
 	UCB0CTLW0 = UCMODE_3 | UCMST | UCSYNC | UCSSEL_2 | UCSWRST | UCCLTO_1;
-	UCB0BRW = 0xf00;
+	UCB0BRW = (F_CPU / F_I2C) - 1;
 	P1DIR &= ~(BIT6 | BIT7);
 	P1SEL0 &= ~(BIT6 | BIT7);
 	P1SEL1 |= BIT6 | BIT7;
-- 
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