From b2659424d59bfe60b58f243588cd69182ebb28a7 Mon Sep 17 00:00:00 2001 From: Fotis Panagiotopoulos Date: Wed, 24 Apr 2024 12:34:45 +0300 Subject: [PATCH] lpc17_40 i2c: Fix I2C driver state desynchronization. --- arch/arm/src/lpc17xx_40xx/lpc17_40_i2c.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/src/lpc17xx_40xx/lpc17_40_i2c.c b/arch/arm/src/lpc17xx_40xx/lpc17_40_i2c.c index 252c9c9848..23eef26f95 100644 --- a/arch/arm/src/lpc17xx_40xx/lpc17_40_i2c.c +++ b/arch/arm/src/lpc17xx_40xx/lpc17_40_i2c.c @@ -227,6 +227,8 @@ static int lpc17_40_i2c_start(struct lpc17_40_i2cdev_s *priv) uint32_t timeout; int i; + nxsem_reset(&priv->wait, 0); + putreg32(I2C_CONCLR_STAC | I2C_CONCLR_SIC, priv->base + LPC17_40_I2C_CONCLR_OFFSET); putreg32(I2C_CONSET_STA, priv->base + LPC17_40_I2C_CONSET_OFFSET);