You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@nuttx.apache.org by bt...@apache.org on 2021/01/17 05:04:57 UTC
[incubator-nuttx] 05/07: nrf52 i2c: disable peripheral while
configuring
This is an automated email from the ASF dual-hosted git repository.
btashton pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git
commit 6f3f1c07fbd48a71133b6e5df64679f34c69a5e5
Author: Matias N <ma...@protobits.dev>
AuthorDate: Sat Jan 16 19:36:45 2021 -0300
nrf52 i2c: disable peripheral while configuring
---
arch/arm/src/nrf52/nrf52_i2c.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/arch/arm/src/nrf52/nrf52_i2c.c b/arch/arm/src/nrf52/nrf52_i2c.c
index e8c7bad..eb55b8b 100644
--- a/arch/arm/src/nrf52/nrf52_i2c.c
+++ b/arch/arm/src/nrf52/nrf52_i2c.c
@@ -568,6 +568,10 @@ static int nrf52_i2c_init(FAR struct nrf52_i2c_priv_s *priv)
int pin = 0;
int port = 0;
+ /* Disable TWI interface */
+
+ nrf52_i2c_putreg(priv, NRF52_TWIM_ENABLE_OFFSET, TWIM_ENABLE_DIS);
+
/* Configure SCL and SDA pins */
nrf52_gpio_config(priv->scl_pin);
@@ -593,7 +597,7 @@ static int nrf52_i2c_init(FAR struct nrf52_i2c_priv_s *priv)
/* Enable TWI interface */
- nrf52_i2c_putreg(priv, NRF52_TWIS_ENABLE_OFFSET, TWIM_ENABLE_EN);
+ nrf52_i2c_putreg(priv, NRF52_TWIM_ENABLE_OFFSET, TWIM_ENABLE_EN);
#ifndef CONFIG_I2C_POLLED
/* Enable I2C interrupts */
@@ -671,9 +675,9 @@ static int nrf52_i2c_sem_destroy(FAR struct nrf52_i2c_priv_s *priv)
static int nrf52_i2c_deinit(FAR struct nrf52_i2c_priv_s *priv)
{
- /* Enable TWI interface */
+ /* Disable TWI interface */
- nrf52_i2c_putreg(priv, TWIM_ENABLE_DIS, NRF52_TWIS_ENABLE_OFFSET);
+ nrf52_i2c_putreg(priv, NRF52_TWIM_ENABLE_OFFSET, TWIM_ENABLE_DIS);
/* Unconfigure GPIO pins */