From 51c47769f8a3a451e1d54852280046472fb65757 Mon Sep 17 00:00:00 2001
From: px4dev <px4@purgatory.org>
Date: Wed, 23 Jan 2013 20:17:28 -0800
Subject: [PATCH] Restore the correct handling of the ACK flag at read
 completion.

---
 nuttx/arch/arm/src/stm32/stm32_i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nuttx/arch/arm/src/stm32/stm32_i2c.c b/nuttx/arch/arm/src/stm32/stm32_i2c.c
index 80f1575042..a66ac7e290 100644
--- a/nuttx/arch/arm/src/stm32/stm32_i2c.c
+++ b/nuttx/arch/arm/src/stm32/stm32_i2c.c
@@ -1225,11 +1225,11 @@ static int stm32_i2c_isr(struct stm32_i2c_priv_s *priv)
 
           /* Disable acknowledge when last byte is to be received */
 
+          priv->dcnt--;
           if (priv->dcnt == 1)
             {
               stm32_i2c_modifyreg(priv, STM32_I2C_CR1_OFFSET, I2C_CR1_ACK, 0);  
             }
-          priv->dcnt--;
 
 #ifdef CONFIG_I2C_POLLED
           irqrestore(state);