Help¶

Sets RTT buffer size for sending ethernet frames. Smaller values will save the RAM, but will decrease the performance.

Direct dependencies¶

ETH_RTT && HAS_SEGGER_RTT

(Includes any dependencies from if’s and menus.)

Defaults¶

256 if (SOC_NRF52810 || SOC_SERIES_NRF51X) && ETH_RTT && HAS_SEGGER_RTT
1024 if SOC_NRF52832 && ETH_RTT && HAS_SEGGER_RTT
3072 if ETH_RTT && HAS_SEGGER_RTT

Kconfig definition¶

At ../nrf/drivers/net/Kconfig:47

Included via Kconfig:10 → Kconfig.zephyr:10 → /jenkins_workspace/workspace/connect-nrf_documentation_master/_build/Kconfig.modules:1 → /jenkins_workspace/workspace/connect-nrf_documentation_master/ncs/nrf/Kconfig.nrf:11 → ../nrf/drivers/Kconfig:12

Menu path: (top menu) → Nordic nRF Connect → Device Drivers → Ethernet over RTT driver

config ETH_RTT_UP_BUFFER_SIZE
    int
    prompt "RTT up buffer size" if ETH_RTT && HAS_SEGGER_RTT
    range 16 1048576 if ETH_RTT && HAS_SEGGER_RTT
    default 256 if (SOC_NRF52810 || SOC_SERIES_NRF51X) && ETH_RTT && HAS_SEGGER_RTT
    default 1024 if SOC_NRF52832 && ETH_RTT && HAS_SEGGER_RTT
    default 3072 if ETH_RTT && HAS_SEGGER_RTT
    depends on ETH_RTT && HAS_SEGGER_RTT
    help
      Sets RTT buffer size for sending ethernet frames. Smaller values will
      save the RAM, but will decrease the performance.

(Definitions include propagated dependencies, including from if’s and menus.)