Problem configuring TWI (I2C) interface

RE: Problem configuring TWI (I2C) interface

msu7xi — Mon, 28 Aug 2023 08:02:24 GMT

Hello,

I come back to this subject as I still have problems to configure the I2C interface. Is there any parameter I'm missing?

RE: Problem configuring TWI (I2C) interface

msu7xi — Fri, 09 Jun 2023 14:17:17 GMT

I still have the same error. Below the prj.conf file:

#
# Copyright (c) 2018 Nordic Semiconductor
#
# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
#

# Enable the UART driver
CONFIG_UART_ASYNC_API=y
CONFIG_NRFX_UARTE0=y
CONFIG_SERIAL=y
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=y

# Enable the BLE stack with GATT Client configuration
CONFIG_BT=y
CONFIG_BT_CENTRAL=y
CONFIG_BT_SMP=y
CONFIG_BT_GATT_CLIENT=y

# Enable the BLE modules from NCS
CONFIG_BT_NUS_CLIENT=y
CONFIG_BT_SCAN=y
CONFIG_BT_SCAN_FILTER_ENABLE=y
CONFIG_BT_SCAN_UUID_CNT=1
CONFIG_BT_SCAN_ADDRESS_CNT=1
CONFIG_BT_GATT_DM=y
CONFIG_HEAP_MEM_POOL_SIZE=2048
CONFIG_BT_MAX_PAIRED=1
CONFIG_BT_MAX_CONN=1

# This example requires more workqueue stack
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048

# Enable bonding
CONFIG_BT_SETTINGS=y
CONFIG_FLASH=y
CONFIG_FLASH_PAGE_LAYOUT=y
CONFIG_FLASH_MAP=y
CONFIG_NVS=y
CONFIG_SETTINGS=y

# Enable use of the non-minimal C functionality (stdio.h).
CONFIG_NEWLIB_LIBC=y

# Config logger
CONFIG_LOG=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_LOG_BACKEND_RTT=y
CONFIG_LOG_BACKEND_UART=y
CONFIG_LOG_PRINTK=n
CONFIG_BT_DEBUG_LOG=y
CONFIG_BT_GATT_DM_DATA_PRINT=y

CONFIG_ASSERT=y

# Config I2C
CONFIG_GPIO=y
CONFIG_I2C=y
CONFIG_I2C_NRFX=y

CONFIG_SHELL=y
CONFIG_I2C_SHELL=y

I'm building the project for an nRF52832.

RE: Problem configuring TWI (I2C) interface

Øivind — Fri, 09 Jun 2023 13:47:14 GMT

At the moment I am not able to reproduce the error you are seeing.

Could you try adding this to the overlay?

&spi1 {
    status = "disabled";
};

If that does not work, could you please show me the prj.conf file? Do you have CONFIG_I2C=y ?

Which board are you building for, and are you able to reproduce this error on the hello_world sample?

RE: Problem configuring TWI (I2C) interface

msu7xi — Fri, 09 Jun 2023 12:35:58 GMT

2.3.0

RE: Problem configuring TWI (I2C) interface

Øivind — Fri, 09 Jun 2023 11:53:43 GMT

Which version of the nRF Connect SDK are you using?

RE: Problem configuring TWI (I2C) interface

msu7xi — Thu, 08 Jun 2023 11:35:35 GMT

Hello,

I have replaced the address and I still have the error:

Node nRF52832 should have "compatible" property
Node should only occur on the undefined bus.
/soc/i2c@40004000/nRF52832@28/

Do I have to modify '/soc/i2c@40004000/nRF52832@28/'?

RE: Problem configuring TWI (I2C) interface

Øivind — Thu, 08 Jun 2023 10:57:37 GMT

Hi,

In an i2c device node, the reg property and address after the node name should be the i2c address, not the memory address of the bus.
So both 40004000 should be 28.