Data Logging

[Kashyap23]

Hi,I am using NRF5340 ,I want to log data of 2 channels of mic with sampling rate of 16000 but while logging I am receiving "120 messages dropped" and with some random numbers if I change configurations.

CONFIG_I2S=y
CONFIG_I2C=y

CONFIG_LOG_PRINTK=y

CONFIG_UART_CONSOLE=n
CONFIG_RTT_CONSOLE=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_LOG=y
CONFIG_LOG_MEM_UTILIZATION=y

CONFIG_LOG_MODE_OVERFLOW=n
CONFIG_SEGGER_RTT_BUFFER_SIZE_UP=65536
CONFIG_LOG_BUFFER_SIZE=65536

CONFIG_LOG_PROCESS_THREAD_STACK_SIZE=2048

[Håkon Alseth]

Hi,

 

How often are you logging? Ie. what is the throughput?

If you log each sample at 16 KHz, and also convert it to ASCII string, it is likely that this will take some time. And if your firmware is blocking the logger thread from running in longer intervals, it will overflow after a while

 

Kind regards,

Håkon