From f1e5a20df829dc4d5607c790a59cf80a640001e2 Mon Sep 17 00:00:00 2001
From: Philipp Klaus <philipp.klaus@gmail.com>
Date: Thu, 11 Jan 2018 11:32:26 +0100
Subject: [PATCH] Magn Sens: fix baud rate / F_CPU / fuses

---
 sensors/MagneticFieldSensor/Makefile | 5 ++++-
 sensors/MagneticFieldSensor/main.c   | 4 ++--
 sensors/MagneticFieldSensor/main.h   | 4 ++--
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/sensors/MagneticFieldSensor/Makefile b/sensors/MagneticFieldSensor/Makefile
index e8d8c75..8f3bb5b 100644
--- a/sensors/MagneticFieldSensor/Makefile
+++ b/sensors/MagneticFieldSensor/Makefile
@@ -29,7 +29,7 @@ DEBUG = stabs
 CSTANDARD = -std=gnu99
 
 # Place -D or -U options here
-CDEFS = -DF_CPU=16000000
+CDEFS = -DF_CPU=8000000
 
 # Place -I options here
 CINCS =
@@ -241,3 +241,6 @@ program_avrisp2: all
 
 program_leo: all
 	avrdude -patmega32u4 -cavr109 -P/dev/ttyACM0 -b57600 -D -Uflash:w:$(TARGET).hex:i
+
+fuses:
+	$(AVRDUDE) $(AVRDUDE_FLAGS) -U lfuse:w:0x46:m -U hfuse:w:0xd9:m -U efuse:w:0xff:m
diff --git a/sensors/MagneticFieldSensor/main.c b/sensors/MagneticFieldSensor/main.c
index 7959d3b..5669d61 100644
--- a/sensors/MagneticFieldSensor/main.c
+++ b/sensors/MagneticFieldSensor/main.c
@@ -21,8 +21,8 @@ int main(void)
     float SensZ[4];
     
     //For CLK setting
-    CLKPR = (0<<CLKPCE);  // No prescale
-    CLKPR = 0x00; //prescaler 2
+    CLKPR = (1<<CLKPCE);  // No prescale
+    CLKPR = 0x01; //prescaler 2
     PRR  = 0;
     //Init UART
     uinit(); 
diff --git a/sensors/MagneticFieldSensor/main.h b/sensors/MagneticFieldSensor/main.h
index 1846ca9..adf1be1 100644
--- a/sensors/MagneticFieldSensor/main.h
+++ b/sensors/MagneticFieldSensor/main.h
@@ -25,11 +25,11 @@
 
 
 #ifndef F_CPU
-#define F_CPU 16000000
+#define F_CPU 8000000
 #endif
 
 # define USART_BAUDRATE 19200
-# define BAUD_PRESCALE (unsigned int)(1.0 * F_CPU / USART_BAUDRATE / 16 - 0.5);
+# define BAUD_PRESCALE (unsigned int)(1.0 * F_CPU / USART_BAUDRATE / 8 - 0.5);
 
 #define ADDR_MAG_0   0x0C
 #define ADDR_MAG_1   0x0D
-- 
2.43.0