From 0e6294ca27e213c151ea597404d20656a6bb1db0 Mon Sep 17 00:00:00 2001
From: stac <stac>
Date: Sun, 4 Jul 2010 02:21:26 +0000
Subject: [PATCH] spi: remove internal pull-up from input data lines

The input data lines between the OP and AHRS boards had internal
pull-ups enabled.  This seemed to be causing issues early on
during development of the inter-board comms.  Not sure if this
is still necessary but this is how the current code was tested.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1006 ebee16cc-31ac-478f-84a7-5cbb03baadba
---
 flight/AHRS/pios_board.c             | 2 +-
 flight/OpenPilot/System/pios_board.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/flight/AHRS/pios_board.c b/flight/AHRS/pios_board.c
index 39b28cea2..db75a1c7a 100644
--- a/flight/AHRS/pios_board.c
+++ b/flight/AHRS/pios_board.c
@@ -121,7 +121,7 @@ static const struct pios_spi_cfg pios_spi_op_cfg = {
     .init = {
       .GPIO_Pin   = GPIO_Pin_15,
       .GPIO_Speed = GPIO_Speed_50MHz,
-      .GPIO_Mode  = GPIO_Mode_IPU,
+      .GPIO_Mode  = GPIO_Mode_IN_FLOATING,
     },
   },
 };
diff --git a/flight/OpenPilot/System/pios_board.c b/flight/OpenPilot/System/pios_board.c
index 129247d16..c999250e8 100644
--- a/flight/OpenPilot/System/pios_board.c
+++ b/flight/OpenPilot/System/pios_board.c
@@ -211,7 +211,7 @@ const struct pios_spi_cfg pios_spi_ahrs_cfg = {
     .init = {
       .GPIO_Pin   = GPIO_Pin_14,
       .GPIO_Speed = GPIO_Speed_50MHz,
-      .GPIO_Mode  = GPIO_Mode_IPU,
+      .GPIO_Mode  = GPIO_Mode_IN_FLOATING,
     },
   },
   .mosi = {