View log in nrf52840 Dongle

Question

Hi Team,

I am initialized to work on NRF52840 Dongle

Here I want to see the log or print statement for my developing purpose

i used tera term to view my log but no statements are displayed

Help me, how to view log via NRF52840 Dongle

my sdk_config.h file

// <h> nRF_Log

//==========================================================
// <e> NRF_LOG_BACKEND_RTT_ENABLED - nrf_log_backend_rtt - Log RTT backend
//==========================================================
#ifndef NRF_LOG_BACKEND_RTT_ENABLED
#define NRF_LOG_BACKEND_RTT_ENABLED 1
#endif
// <o> NRF_LOG_BACKEND_RTT_TEMP_BUFFER_SIZE - Size of buffer for partially processed strings.
// Size of the buffer is a trade-off between RAM usage and processing.
// if buffer is smaller then strings will often be fragmented.
// It is recommended to use size which will fit typical log and only the
// longer one will be fragmented.

#ifndef NRF_LOG_BACKEND_RTT_TEMP_BUFFER_SIZE
#define NRF_LOG_BACKEND_RTT_TEMP_BUFFER_SIZE 64
#endif

// <o> NRF_LOG_BACKEND_RTT_TX_RETRY_DELAY_MS - Period before retrying writing to RTT
#ifndef NRF_LOG_BACKEND_RTT_TX_RETRY_DELAY_MS
#define NRF_LOG_BACKEND_RTT_TX_RETRY_DELAY_MS 1
#endif

// <o> NRF_LOG_BACKEND_RTT_TX_RETRY_CNT - Writing to RTT retries.
// If RTT fails to accept any new data after retries
// module assumes that host is not active and on next
// request it will perform only one write attempt.
// On successful writing, module assumes that host is active
// and scheme with retry is applied again.

#ifndef NRF_LOG_BACKEND_RTT_TX_RETRY_CNT
#define NRF_LOG_BACKEND_RTT_TX_RETRY_CNT 3
#endif

// </e>

// <e> NRF_LOG_BACKEND_UART_ENABLED - nrf_log_backend_uart - Log UART backend
//==========================================================
#ifndef NRF_LOG_BACKEND_UART_ENABLED
#define NRF_LOG_BACKEND_UART_ENABLED 1
#endif
// <o> NRF_LOG_BACKEND_UART_TX_PIN - UART TX pin
#ifndef NRF_LOG_BACKEND_UART_TX_PIN
#define NRF_LOG_BACKEND_UART_TX_PIN 6
#endif

// <o> NRF_LOG_BACKEND_UART_BAUDRATE - Default Baudrate

// <323584=> 1200 baud
// <643072=> 2400 baud
// <1290240=> 4800 baud
// <2576384=> 9600 baud
// <3862528=> 14400 baud
// <5152768=> 19200 baud
// <7716864=> 28800 baud
// <10289152=> 38400 baud
// <15400960=> 57600 baud
// <20615168=> 76800 baud
// <30801920=> 115200 baud
// <61865984=> 230400 baud
// <67108864=> 250000 baud
// <121634816=> 460800 baud
// <251658240=> 921600 baud
// <268435456=> 1000000 baud

#ifndef NRF_LOG_BACKEND_UART_BAUDRATE
#define NRF_LOG_BACKEND_UART_BAUDRATE 30801920
#endif

// <o> NRF_LOG_BACKEND_UART_TEMP_BUFFER_SIZE - Size of buffer for partially processed strings.
// Size of the buffer is a trade-off between RAM usage and processing.
// if buffer is smaller then strings will often be fragmented.
// It is recommended to use size which will fit typical log and only the
// longer one will be fragmented.

#ifndef NRF_LOG_BACKEND_UART_TEMP_BUFFER_SIZE
#define NRF_LOG_BACKEND_UART_TEMP_BUFFER_SIZE 64
#endif

// </e>

// <e> NRF_LOG_ENABLED - nrf_log - Logger
//==========================================================
#ifndef NRF_LOG_ENABLED
#define NRF_LOG_ENABLED 1
#endif
// <h> Log message pool - Configuration of log message pool

//==========================================================
// <o> NRF_LOG_MSGPOOL_ELEMENT_SIZE - Size of a single element in the pool of memory objects.
// If a small value is set, then performance of logs processing
// is degraded because data is fragmented. Bigger value impacts
// RAM memory utilization. The size is set to fit a message with
// a timestamp and up to 2 arguments in a single memory object.

#ifndef NRF_LOG_MSGPOOL_ELEMENT_SIZE
#define NRF_LOG_MSGPOOL_ELEMENT_SIZE 20
#endif

// <o> NRF_LOG_MSGPOOL_ELEMENT_COUNT - Number of elements in the pool of memory objects
// If a small value is set, then it may lead to a deadlock
// in certain cases if backend has high latency and holds
// multiple messages for long time. Bigger value impacts
// RAM memory usage.

#ifndef NRF_LOG_MSGPOOL_ELEMENT_COUNT
#define NRF_LOG_MSGPOOL_ELEMENT_COUNT 8
#endif

// </h>
//==========================================================

// <q> NRF_LOG_ALLOW_OVERFLOW - Configures behavior when circular buffer is full.

// If set then oldest logs are overwritten. Otherwise a
// marker is injected informing about overflow.

#ifndef NRF_LOG_ALLOW_OVERFLOW
#define NRF_LOG_ALLOW_OVERFLOW 1
#endif

// <o> NRF_LOG_BUFSIZE - Size of the buffer for storing logs (in bytes).

// Must be power of 2 and multiple of 4.
// If NRF_LOG_DEFERRED = 0 then buffer size can be reduced to minimum.
// <128=> 128
// <256=> 256
// <512=> 512
// <1024=> 1024
// <2048=> 2048
// <4096=> 4096
// <8192=> 8192
// <16384=> 16384

#ifndef NRF_LOG_BUFSIZE
#define NRF_LOG_BUFSIZE 1024
#endif

// <q> NRF_LOG_CLI_CMDS - Enable CLI commands for the module.

#ifndef NRF_LOG_CLI_CMDS
#define NRF_LOG_CLI_CMDS 0
#endif

// <o> NRF_LOG_DEFAULT_LEVEL - Default Severity level

// <0=> Off
// <1=> Error
// <2=> Warning
// <3=> Info
// <4=> Debug

#ifndef NRF_LOG_DEFAULT_LEVEL
#define NRF_LOG_DEFAULT_LEVEL 3
#endif

// <q> NRF_LOG_DEFERRED - Enable deffered logger.

// Log data is buffered and can be processed in idle.

#ifndef NRF_LOG_DEFERRED
#define NRF_LOG_DEFERRED 0
#endif

// <q> NRF_LOG_FILTERS_ENABLED - Enable dynamic filtering of logs.

#ifndef NRF_LOG_FILTERS_ENABLED
#define NRF_LOG_FILTERS_ENABLED 0
#endif

Thanks in Advance

Best Regards,

Venkatraaman J S.

View log in nrf52840 Dongle

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