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 f84abe9ad62feae47e9d439a8d24b0f49fc70cb3..4d25731fd2c0e41199e87d2ff473848b7bf47ada 100644 (file)
--- 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)