From: asterix <asterix@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Tue, 3 Aug 2010 17:59:43 +0000 (+0000)
Subject: Clean error when make restart.
X-Git-Tag: 2.6.0~258
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=ff4f41b646287e22a55fb6ee50e026e320beeeb4;p=bertos.git

Clean error when make restart.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4132 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/bertos/drv/i2c_bitbang.c b/bertos/drv/i2c_bitbang.c
index f84abe9a..4d25731f 100644
--- a/bertos/drv/i2c_bitbang.c
+++ b/bertos/drv/i2c_bitbang.c
@@ -198,6 +198,9 @@ static void i2c_bitbang_stop_1(struct I2c *i2c)
 INLINE bool i2c_bitbang_start_1(struct I2c *i2c)
 {
 	bool ret;
+	/* Clear all error, we restart */
+	i2c->errors &= ~(I2C_NO_ACK | I2C_ARB_LOST);
+
 	if (old_api)
 	{
 		SDA_HI;
@@ -215,6 +218,7 @@ INLINE bool i2c_bitbang_start_1(struct I2c *i2c)
 		i2c_halfbitDelay(I2C_DEV(i2c));
 		i2c_sdaLo(I2C_DEV(i2c));
 		i2c_halfbitDelay(I2C_DEV(i2c));
+
 		ret = !i2c_sdaIn(I2C_DEV(i2c));
 	}
 
@@ -328,17 +332,14 @@ static void i2c_bitbang_putc(struct I2c *i2c, uint8_t _data)
 			i2c_sclHi(I2C_DEV(i2c));
 			i2c_halfbitDelay(I2C_DEV(i2c));
 		}
-
 		ack = !i2c_sdaIn(I2C_DEV(i2c));
+
 		i2c_sclLo(I2C_DEV(i2c));
 		i2c_halfbitDelay(I2C_DEV(i2c));
 	}
 
 	if (!ack)
-	{
-		LOG_ERR("NO ACK received\n");
 		i2c->errors |= I2C_NO_ACK;
-	}
 
 	/* Generate stop condition (if requested) */
 	if (((i2c->xfer_size == 1) && (i2c->flags & I2C_STOP)) || i2c->errors)