Configuring RTT for Nordic thingy 52 connected to nrf5340's debug out

RE: Configuring RTT for Nordic thingy 52 connected to nrf5340's debug out

Carl Richard — Fri, 12 Feb 2021 08:28:21 GMT

Good to hear! Glad I could help.

Best regards,
Carl Richard

RE: Configuring RTT for Nordic thingy 52 connected to nrf5340's debug out

muditsharmaa — Thu, 11 Feb 2021 23:08:40 GMT

Hi Carl,

It works perfectly now. Thanks for the help!

RE: Configuring RTT for Nordic thingy 52 connected to nrf5340's debug out

Carl Richard — Thu, 11 Feb 2021 14:55:22 GMT

Hi again!

I suspect that the printk messages might be suppressed due to excessive logging. Could you try to remove CONFIG_LOG_DEFAULT_LEVEL=4 (so that DBG messages aren't shown) and see if helps? That's currently the only difference between my prj.conf and yours.

Best regards,
Carl Richard

RE: Configuring RTT for Nordic thingy 52 connected to nrf5340's debug out

muditsharmaa — Thu, 11 Feb 2021 11:18:45 GMT

Hi Carl,

I followed your suggestion and I see output on the RTT viewer but I'm not seeing the printk() messages.

On the RTT viewer I see the following output:

Can you kindly suggest what could be causing this and how to fix this?

thank you.

RE: Configuring RTT for Nordic thingy 52 connected to nrf5340's debug out

Carl Richard — Thu, 11 Feb 2021 09:21:15 GMT

Hi again!

I get a build error when trying your prj.conf dure to "CONFIG_HAS_SEGGER_RTT=y". Could you try to remove this, as well as building with a "Clean build folder" (SES) or "pristine" (command line).

Best regards,
Carl Richard

RE: Configuring RTT for Nordic thingy 52 connected to nrf5340's debug out

muditsharmaa — Wed, 10 Feb 2021 17:18:43 GMT

Hey,

Here is my proj.conf file.

# General configuration
CONFIG_MAIN_STACK_SIZE=4096
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=4096
CONFIG_FLASH=y
CONFIG_FLASH_MAP=y
CONFIG_NVS=y
CONFIG_SETTINGS=y
CONFIG_HWINFO=y
CONFIG_ASSERT=y
CONFIG_ASSERT_LEVEL=2
CONFIG_LOG=y
CONFIG_LOG_PRINTK=y

CONFIG_DK_LIBRARY=y
CONFIG_BT_MESH_DK_PROV=y

# Bluetooth configuration
CONFIG_BT=y
CONFIG_BT_COMPANY_ID=0x0059
CONFIG_BT_DEVICE_NAME="Mesh Sensor Client"
CONFIG_BT_L2CAP_RX_MTU=69
CONFIG_BT_L2CAP_TX_MTU=69
CONFIG_BT_L2CAP_TX_BUF_COUNT=32
CONFIG_BT_LL_SW_SPLIT=y
CONFIG_BT_OBSERVER=y
CONFIG_BT_PERIPHERAL=y
CONFIG_BT_SETTINGS=y

# Disable unused Bluetooth features
CONFIG_BT_CTLR_DUP_FILTER_LEN=0
CONFIG_BT_CTLR_LE_ENC=n
CONFIG_BT_DATA_LEN_UPDATE=n
CONFIG_BT_PHY_UPDATE=n
CONFIG_BT_CTLR_CHAN_SEL_2=n
CONFIG_BT_CTLR_MIN_USED_CHAN=n
CONFIG_BT_CTLR_PRIVACY=n

# Bluetooth Mesh configuration
CONFIG_BT_MESH=y
CONFIG_BT_MESH_RELAY=y
CONFIG_BT_MESH_FRIEND=y
CONFIG_BT_MESH_ADV_BUF_COUNT=64
CONFIG_BT_MESH_TX_SEG_MAX=32
CONFIG_BT_MESH_RX_SEG_MAX=16
CONFIG_BT_MESH_PB_GATT=y
CONFIG_BT_MESH_GATT_PROXY=y

# Bluetooth Mesh models
CONFIG_BT_MESH_SENSOR_CLI=y

CONFIG_UART_CONSOLE=n
CONFIG_HAS_SEGGER_RTT=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_RTT_CONSOLE=y
CONFIG_LOG_BACKEND_RTT=y
CONFIG_LOG_STRDUP_BUF_COUNT=20
CONFIG_LOG_STRDUP_MAX_STRING=8

CONFIG_LOG_DEFAULT_LEVEL=4

I'm using the same configuration on the RTT viewer.

Best regards,

Mudit Sharma

RE: Configuring RTT for Nordic thingy 52 connected to nrf5340's debug out

Carl Richard — Wed, 10 Feb 2021 16:09:13 GMT

Hi!

I only used the following settings:

Could you share your full prj.conf, so that I can see if there are any potential conflicts?

Best regards,
Carl Richard

RE: Configuring RTT for Nordic thingy 52 connected to nrf5340's debug out

muditsharmaa — Wed, 10 Feb 2021 15:50:58 GMT

Hi Carl,

thanks for the reply.

I also have the following config parameters in the prj.conf file. Still cant see the RTT output.

# General configuration

CONFIG_MAIN_STACK_SIZE=4096

CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=4096

CONFIG_FLASH=y

CONFIG_FLASH_MAP=y

CONFIG_NVS=y

CONFIG_SETTINGS=y

CONFIG_HWINFO=y

CONFIG_ASSERT=y

CONFIG_ASSERT_LEVEL=2

CONFIG_LOG=y

CONFIG_LOG_PRINTK=y

Can you please tell me how did you setup the jlink RTT viewer? Do you need to enable/disable VCOM via the jlink configurator?

best regards,

Mudit Sharma

RE: Configuring RTT for Nordic thingy 52 connected to nrf5340's debug out

Carl Richard — Wed, 10 Feb 2021 15:42:29 GMT

Hi!

Could you try to add "CONFIG_LOG=y" as well? I used the following prj.conf to successfully log over RTT via the nRF5340DK OB Debugger:

# Config logger
CONFIG_LOG=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_LOG_BACKEND_RTT=y
CONFIG_LOG_BACKEND_UART=n
CONFIG_RTT_CONSOLE=y

Best regards,
Carl Richard