From 45cbb24ba5f0da6ae42c0ae6bc4386c06260b9cd Mon Sep 17 00:00:00 2001
From: Pat Hickey <pat@moreproductive.org>
Date: Tue, 29 Nov 2011 20:33:07 -0800
Subject: [PATCH] AP_Baro_MS5611: init must also perform SPI.begin
---
libraries/AP_Baro/AP_Baro_MS5611.cpp | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/libraries/AP_Baro/AP_Baro_MS5611.cpp b/libraries/AP_Baro/AP_Baro_MS5611.cpp
index ee252967b7..24aef779c7 100644
--- a/libraries/AP_Baro/AP_Baro_MS5611.cpp
+++ b/libraries/AP_Baro/AP_Baro_MS5611.cpp
@@ -115,8 +115,15 @@ uint8_t AP_Baro_MS5611::MS5611_Ready()
// SPI should be initialized externally
void AP_Baro_MS5611::init()
{
-
+ SPI.begin();
+ #if F_CPU == 16000000
+ SPI.setClockDivider(SPI_CLOCK_DIV16);
+ #else
+ # error MS5611 requires SPI at 1MHZ! Need appropriate SPI clock divider
+ #endif
pinMode(MS5611_CS, OUTPUT); // Chip select Pin
+ digitalWrite(MS5611_CS, HIGH);
+ delay(1);
MS5611_SPI_write(CMD_MS5611_RESET);
delay(4);