How to set Transmit Power of my Advertisement Packet in nRF Connect SDK 2.5.1

[Sri1998]

Hello,

I want to set the transmitting power of the advertising packet. How can I set the TX power?

I am using nRF Connect SDK 2.5.1 in Visual Studio Code.

Regards,

Sri

[Sri1998]

I have completed the steps told in the document. But still getting multiple current peaks for each advertisement. The power setting in proj.conf is CONFIG_BT_CTLR_TX_PWR_0=y

 

The expected current consumption is 10.3 mA in normal mode and 4.9mA in DC/DC mode. So anything I am missing? I followed all the steps in the document you shared to create a custom board.

[runsiv]

I would recommend that you check of this sample for your current measurement 

Regards

Runar

[Sri1998]

Thank you for sharing the documentation. I have followed it and now in idle it is consuming 1.3 - 1.5uA (Avg). I turned off the serial and other unused peripherals. 

The transmission power is still not matching the values given in the datasheet. It is varying. How do i get the 5mA specified in the datasheet? 

TIA

Sri

[runsiv]

Hi

I would suspect that the DCDC is not enabled. Can you share your custom board files(for vscode) and your config files?

Regards

Runar

[Sri1998]

PFA the contents of the custom board file and the config file of the project. 

File Name: Kconfig
Contents: 
# nRF52833 board configuration

config BOARD_ENABLE_DCDC
    bool "DCDC Mode"
    select SOC_DCDC_NRF52X
    default y
    depends on BOARD_BEACON_NRF52833
--------------------------------------------------------------------------------------------------------------------
File Name: Kconfig.board
Contents:
# Copyright (c) 2024 Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0

config BOARD_BEACON_NRF52833
	bool "BEACON"
	depends on SOC_NRF52833_QIAA
----------------------------------------------------------------------------------------------------------------------
File Name: Kconfig.defconfig
Contents:
# Copyright (c) 2024 Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0

if BOARD_BEACON_NRF52833

config BOARD
	default "beacon_nrf52833"

config BT_CTLR
   default BT


endif
--------------------------------------------------------------------------------------------------------------------------
File Name: beacon_nrf52833.dts
Contents:
// Copyright (c) 2024 Nordic Semiconductor ASA
// SPDX-License-Identifier: Apache-2.0

/dts-v1/;
#include <nordic/nrf52833_qiaa.dtsi>
#include "beacon_nrf52833-pinctrl.dtsi"


/ {
	model = "BEACON";
	compatible = "ust,beacon-nrf52833";

	chosen {
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zephyr,code-partition = &slot0_partition;
		zephyr,console =  &uart0 ;
		zephyr,shell-uart =  &uart0 ;
		zephyr,uart-mcumgr = &uart0;
	};

	leds {
		compatible = "gpio-leds";
		LED0: led_0 {
			label = "RED LED";
			gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
		};
		LED1: led_1 {
			label = "GREEN LED";
			gpios = <&gpio0 15 GPIO_ACTIVE_LOW>;
		};
		LED2: led_2 {
			label = "BLUE LED";
			gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
		};
		LED3: led_3 {
			label = "IR LED";
			gpios = <&gpio0 22 GPIO_ACTIVE_LOW>;
		};
	};

	buttons {
		compatible = "gpio-keys";
		btn0: user_btn {
			label = "USER BUTTON";
			gpios = <&gpio1 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
		};
	};
	aliases {
		led0 = &LED0;
		led1 = &LED1;
		led2 = &LED2;
		sw0 = &btn0;
		watchdog0 = &wdt0;
	};
};

&flash0 {
	partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		boot_partition: partition@0 {
			label = "mcuboot";
			reg = <0x0 0xc000>;
		};
		slot0_partition: partition@c000 {
			label = "image-0";
			reg = <0xc000 0x32000>;
		};
		slot1_partition: partition@3e000 {
			label = "image-1";
			reg = <0x3e000 0x32000>;
		};
		scratch_partition: partition@70000 {
			label = "image-scratch";
			reg = <0x70000 0xa000>;
		};
		storage_partition: partition@7a000 {
			label = "storage";
			reg = <0x7a000 0x6000>;
		};
	};
};

&uart0 {
	status = "okay";
	current-speed = <115200>;
	pinctrl-0 = <&uart0_default>;
	pinctrl-1 = <&uart0_sleep>;
	pinctrl-names = "default", "sleep";
};

&gpio0 {
	status = "okay";
};

&gpio1 {
	status = "okay";
};

&gpiote {
	status = "okay";
};

&nfct {
	status = "disabled";
};

&acl {
	status = "disabled";
};
---------------------------------------------------------------------------------------------------------------------------------
File Name: beacon_nrf52833.yaml 
Contents: 
# Copyright (c) 2024 Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0

identifier: beacon_nrf52833
name: BEACON
type: mcu
arch: arm
ram: 128
flash: 512
toolchain:
  - zephyr
  - gnuarmemb
  - xtools
---------------------------------------------------------------------------------------------------------------------------------
File Name: beacon_nrf52833_defconfig
Contents:
# Copyright (c) 2024 Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0

CONFIG_SOC_SERIES_NRF52X=y
CONFIG_SOC_NRF52833_QIAA=y
CONFIG_BOARD_BEACON_NRF52833=y

# Enable MPU
CONFIG_ARM_MPU=y

# Enable hardware stack protection
CONFIG_HW_STACK_PROTECTION=y

# Enable GPIO
CONFIG_GPIO=n

# Enable UART
CONFIG_SERIAL=n

# Enable Console
CONFIG_CONSOLE=n
CONFIG_UART_CONSOLE=n

# Enable Pin Control subsystem
CONFIG_PINCTRL=y
---------------------------------------------------------------------------------------------------------------------------------
File Name: beacon_nrf52833-pinctrl.dtsi
Contents:
/*
 * Copyright (c) 2022 Nordic Semiconductor
 * SPDX-License-Identifier: Apache-2.0
 */

&pinctrl {
    uart0_default: uart0_default{
        group1 {
            psels = <NRF_PSEL(UART_TX,0,6)>;
        };
        group2 {
            psels = <NRF_PSEL(UART_RX,0,8)>;
            bias-pull-up;
        };
    };
    uart0_sleep: uart0_sleep {
        group1 {
            psels = <NRF_PSEL(UART_TX, 0, 6)>,
                    <NRF_PSEL(UART_RX, 0, 8)>;
            low-power-enable;
        };
    };
    
    i2c0_default: i2c0_default {
        group1 {
            psels = <NRF_PSEL(TWIM_SDA, 0, 26)>,
                    <NRF_PSEL(TWIM_SCL, 0, 12)>;
        };
    };

    i2c0_sleep: i2c0_sleep {
        group1 {
            psels = <NRF_PSEL(TWIM_SDA, 0, 26)>,
                    <NRF_PSEL(TWIM_SCL, 0, 12)>;
            low-power-enable;
        };
    };
};
---------------------------------------------------------------------------------------------------------------------------------
File Name: board.cmake
Contents:
# Copyright (c) 2024 Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0

board_runner_args(jlink "--device=nrf52833_xxaa" "--speed=4000")
board_runner_args(pyocd "--target=nrf52833" "--frequency=4000000")

include(${ZEPHYR_BASE}/boards/common/nrfjprog.board.cmake)
include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)

File Name: prj.conf
Contents:
# Logger module
CONFIG_LOG=n

# GPIO Library
CONFIG_GPIO=n

# Include BLE stack in project
CONFIG_BT=y

# Set device Name
CONFIG_BT_DEVICE_NAME="UBC0001"

# Increase stack size for the main thread and System Workqueue
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
CONFIG_MAIN_STACK_SIZE=2048

# Set the default Tx Power of BLE 
# CONFIG_BT_CTLR_TX_PWR_MINUS_20=y
# CONFIG_BT_CTLR_TX_PWR_MINUS_16=y
# CONFIG_BT_CTLR_TX_PWR_MINUS_12=y
# CONFIG_BT_CTLR_TX_PWR_MINUS_8=y
# CONFIG_BT_CTLR_TX_PWR_MINUS_4=y
CONFIG_BT_CTLR_TX_PWR_0=y
# CONFIG_BT_CTLR_TX_PWR_PLUS_4=y
# CONFIG_BT_CTLR_TX_PWR_PLUS_8=y
---------------------------------------------------------------------------------------------------------------------------------