RE: Power consumption of ncs1.9.0 SDK

Øivind — Thu, 25 Aug 2022 13:18:55 GMT

Can you try enabling hw-flow-control?
Add

hw-flow-control;

to the uart0 node in your overlay file.

RE: Power consumption of ncs1.9.0 SDK

duxinglang — Thu, 25 Aug 2022 02:22:31 GMT

Thank you. I used this function to wake up and Hibernate the UART according to your reminder. Now the power consumption of my device has been reduced. However, there seems to be a small problem, that is, it seems to take a long time to wake up the UART after hibernation, which may cause a part of the data transmitted through the UART to be lost.

This is my code for uart control:

void uart_sleep_out(void)
{
#ifdef CONFIG_PM_DEVICE
	if(k_timer_remaining_get(&uart_sleep_in_timer) > 0)
		k_timer_stop(&uart_sleep_in_timer);
	k_timer_start(&uart_sleep_in_timer, K_SECONDS(UART_WAKE_HOLD_TIME_SEC), K_NO_WAIT);

	if(uart_is_waked)
		return;
	
	pm_device_action_run(uart_ble, PM_DEVICE_ACTION_RESUME);
	k_sleep(K_MSEC(10));
	
	uart_is_waked = true;

#ifdef UART_DEBUG
	LOGD("uart set active success!");
#endif
#endif
}

void uart_sleep_in(void)
{
#ifdef CONFIG_PM_DEVICE
	if(!uart_is_waked)
		return;
	
	pm_device_action_run(uart_ble, PM_DEVICE_ACTION_SUSPEND);
	k_sleep(K_MSEC(10));
	
	uart_is_waked = false;

#ifdef UART_DEBUG
	LOGD("uart set low power success!");
#endif
#endif
}

RE: Power consumption of ncs1.9.0 SDK

Øivind — Wed, 24 Aug 2022 11:36:11 GMT

Hi,

Can you try enabling CONFIG_PM_DEVICE?

This enables the device power management feature in Zephyr.

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/services/pm/device.html

RE: Power consumption of ncs1.9.0 SDK

duxinglang — Wed, 24 Aug 2022 08:03:02 GMT

This is my prj.conf

#
# Copyright (c) 2019 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-BSD-5-Clause-Nordic
#
# General config
CONFIG_NEWLIB_LIBC=y
CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=y
CONFIG_ASSERT=y
CONFIG_REBOOT=y
CONFIG_GPIO=y
CONFIG_TRUSTED_EXECUTION_NONSECURE=y

# Log
CONFIG_LOG=y
CONFIG_LOG_IMMEDIATE=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_LOG_BACKEND_RTT=y
CONFIG_LOG_BACKEND_UART=n
CONFIG_LOG_DEFAULT_LEVEL=4
CONFIG_LOG_MODE_OVERFLOW=y
CONFIG_LOG_BACKEND_RTT_MODE_DROP=y
CONFIG_LOG_BACKEND_SHOW_COLOR=n
CONFIG_LOG_BACKEND_FORMAT_TIMESTAMP=n

# watch dog
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_TIMEOUT_MSEC=10000

# Modem info
CONFIG_MODEM_INFO=y

# BSD library
CONFIG_BSD_LIBRARY=y
CONFIG_BSD_LIBRARY_TRACE_ENABLED=n

# NVS
CONFIG_FLASH=y
CONFIG_FLASH_PAGE_LAYOUT=y
CONFIG_NVS=y
CONFIG_NVS_LOG_LEVEL_DBG=y
CONFIG_MPU_ALLOW_FLASH_WRITE=y

# GPS
CONFIG_NRF9160_GPS=y
#CONFIG_GPS_USE_SIM=y
CONFIG_GPS_USE_EXTERNAL=y
CONFIG_GPS_DEV_NAME="NRF9160_GPS"
CONFIG_GPS_CONTROL_PSM_ENABLE_ON_START=y
CONFIG_GPS_CONTROL_FIRST_FIX_CHECK_DELAY=10
CONFIG_GPS_CONTROL_FIX_CHECK_INTERVAL=30
CONFIG_GPS_CONTROL_FIX_TRY_TIME=360
CONFIG_GPS_CONTROL_PSM_DISABLE_ON_STOP=n

# AT_CMD
#CONFIG_AT_HOST_LIBRARY=y
#CONFIG_UART_INTERRUPT_DRIVEN=y

# Console
CONFIG_CONSOLE_SUBSYS=n
CONFIG_CONSOLE_HANDLER=n
CONFIG_CONSOLE_GETCHAR=n
CONFIG_CONSOLE=n
CONFIG_RTT_CONSOLE=y
CONFIG_UART_CONSOLE=n

# Enable SUPL client support AGPS
CONFIG_SUPL_CLIENT_LIB=n

# Network
CONFIG_NETWORKING=y
CONFIG_NET_NATIVE=n
CONFIG_NET_SOCKETS_OFFLOAD=y
CONFIG_NET_SOCKETS=y
CONFIG_NET_SOCKETS_POSIX_NAMES=y

# LTE link control
CONFIG_LTE_LINK_CONTROL=y
CONFIG_LTE_AUTO_INIT_AND_CONNECT=n
CONFIG_LTE_NETWORK_USE_FALLBACK=y
CONFIG_LTE_NETWORK_TIMEOUT=60
CONFIG_LTE_NETWORK_MODE_LTE_M_GPS=n
CONFIG_LTE_NETWORK_MODE_NBIOT_GPS=y
CONFIG_LTE_LEGACY_PCO_MODE=y

# PSM
CONFIG_LTE_PSM_ENABLE=y
# Set Periodic-TAU timer to 1 hour and Active-Time to 10 seconds.
CONFIG_LTE_PSM_REQ_RPTAU="01000110"
CONFIG_LTE_PSM_REQ_RAT="00000101"

# eDRX
CONFIG_LTE_EDRX_ENABLE=n
CONFIG_LTE_EDRX_REQ_VALUE="1001"

# RAI
CONFIG_LTE_RAI_ENABLE=n

# MQTT
CONFIG_MQTT_LIB=y
CONFIG_MQTT_LIB_TLS=n
CONFIG_MQTT_KEEPALIVE=300
CONFIG_MQTT_PUB_TOPIC="device/e2/pushdata"
CONFIG_MQTT_SUB_TOPIC="device/e2/"
CONFIG_MQTT_CLIENT_ID="my-client-id"
CONFIG_MQTT_USER_NAME="admin123"
CONFIG_MQTT_PASSWORD="admin123"
CONFIG_MQTT_DOMESTIC_BROKER_HOSTNAME="47.107.51.89"
CONFIG_MQTT_DOMESTIC_BROKER_PORT=1883
CONFIG_MQTT_FOREIGN_BROKER_HOSTNAME="18.135.53.53"
CONFIG_MQTT_FOREIGN_BROKER_PORT=1883

# Library for buttons and LEDs
CONFIG_DK_LIBRARY=y
CONFIG_DK_LIBRARY_INVERT_LEDS=n

# Heap and stacks
CONFIG_HEAP_MEM_POOL_SIZE=16384
CONFIG_MAIN_STACK_SIZE=8192
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
CONFIG_HW_STACK_PROTECTION=y

# SPI
CONFIG_SPI=y
CONFIG_SPI_NRFX=y
CONFIG_SPI_2=n
CONFIG_SPI_2_NRF_SPIM=n
CONFIG_SPI_3=y
CONFIG_SPI_3_NRF_SPIM=y

# I2C
CONFIG_I2C=y
CONFIG_I2C_NRFX=y
CONFIG_I2C_1=y
CONFIG_I2C_1_NRF_TWIM=y
CONFIG_I2C_2=n
CONFIG_I2C_2_NRF_TWIM=n
CONFIG_I2C_INIT_PRIORITY=60

# UART
CONFIG_SERIAL=y
CONFIG_UART_2_NRF_UARTE=y
CONFIG_UART_INTERRUPT_DRIVEN=y

# ANIMATION
CONFIG_ANIMATION_SUPPORT=y

# PPG
CONFIG_PPG_SUPPORT=y

# IMU
CONFIG_IMU_SUPPORT=y
CONFIG_STEP_SUPPORT=n
CONFIG_SLEEP_SUPPORT=n
CONFIG_FALL_DETECT_SUPPORT=n

# WIFI
CONFIG_WIFI=n

# TP
CONFIG_TOUCH_SUPPORT=y

# AUDIO
CONFIG_AUDIO_SUPPORT=n

# Data Sync
CONFIG_SYNC_SUPPORT=y

# Temperature
CONFIG_TEMP_SUPPORT=y

# CRC Check
CONFIG_CRC_SUPPORT=y

# DEVICE POWER MANAGEMENT
CONFIG_DEVICE_POWER_MANAGEMENT=y

# Download client
CONFIG_DOWNLOAD_CLIENT=y
CONFIG_DOWNLOAD_CLIENT_TLS=y
CONFIG_DOWNLOAD_CLIENT_STACK_SIZE=4096

# DATA UPDATE
CONFIG_DATA_DOWNLOAD_SUPPORT=n
CONFIG_DATA_DOWNLOAD_HOST_HK="aug-fm-files-hk.oss-cn-hongkong.aliyuncs.com"
CONFIG_DATA_DOWNLOAD_HOST_CN="aug-fm-files-cn.oss-cn-shenzhen.aliyuncs.com"
# IMG
CONFIG_IMG_DATA_UPDATE=y
CONFIG_IMG_DATA_DOWNLOAD_FILE="e2_img.bin"
# FONT
CONFIG_FONT_DATA_UPDATE=y
CONFIG_FONT_DATA_DOWNLOAD_FILE="e2_font.bin"
# PPG
CONFIG_PPG_DATA_UPDATE=y
CONFIG_PPG_DATA_DOWNLOAD_FILE="e2_ppg.bin"

# fota download
#CONFIG_FOTA_DOWNLOAD=y
#CONFIG_FOTA_DOWNLOAD_PROGRESS_EVT=y
#CONFIG_FOTA_DOWNLOAD_HOST_HK="aug-fm-files-hk.oss-cn-hongkong.aliyuncs.com"
#CONFIG_FOTA_DOWNLOAD_HOST_CN="aug-fm-files-cn.oss-cn-shenzhen.aliyuncs.com"
#CONFIG_FOTA_DOWNLOAD_FILE="e2_update.bin"

# Image manager
#CONFIG_IMG_MANAGER=y
#CONFIG_FLASH=y
#CONFIG_IMG_ERASE_PROGRESSIVELY=y

# DFU Target
#CONFIG_DFU_TARGET=y

# Modem key management
#CONFIG_MODEM_KEY_MGMT=y

# Application Upgrade support
#CONFIG_BOOTLOADER_MCUBOOT=y

and overlay files.

&spi2{
	compatible = "nordic,nrf-spim";
	status = "okay";
	sck-pin = <3>;
	mosi-pin = <4>;
	miso-pin = <5>;
};

&spi3{
	compatible = "nordic,nrf-spim";
	status = "okay";
	sck-pin = <22>;
	mosi-pin = <20>;
	miso-pin = <20>;
};

&i2c1{
	compatible = "nordic,nrf-twim";
	status = "okay";
	sda-pin = <30>;
	scl-pin = <31>;
	clock-frequency = <I2C_BITRATE_FAST>;
};

&i2c2{
	compatible = "nordic,nrf-twim";
	status = "disabled";
};

&uart0 {
	status = "okay";
	current-speed = <115200>;
	tx-pin = <29>;
	rx-pin = <28>;
	rx-pull-up;
	rts-pin = <14>;
	cts-pin = <16>;
	cts-pull-up;
};

&uart1{
	status = "disabled";
};