This is a list of known issues and limitations for Digi Embedded Yocto 4.0-r6:

  • Firmware update

    • The software update package must be located in the root level of the update media (subfolders are not yet supported).

    • To update from dey-3.2 version or lower 4.0-r6 on a single boot layout, you must flash the recovery partition with the latest Yocto release before performing the firmware update.

  • ConnectCore Cloud Services

    • Remote file system management only supports names and paths up to 255 characters.

i.MX6 system-on-chip

  • NXP i.MX6 processor has a documented errata (ERR004512) whereby the maximum performance of the Gigabit FEC is limited to 400Mbps (total for Tx and Rx).

ConnectCore 6 SOM

  • Wireless

    • Performance of the wireless interface is reduced when using concurrent mode, as the wireless interface is shared between several different functionalities.

    • When using wireless concurrent mode, Digi recommends you keep the different modes on the same frequency channels. For example, when configuring access point mode on channel 36 in the 5GHz band, connect to the same channel both in station mode and Wi-Fi direct so that the radio performance is optimized.

    • When working as an access point, DFS-capable channels in the 5GHz band are not supported.

    • The QCA6564 wireless chip (ConnectCore 6N) does not support Wake On Wireless LAN.

    • For P2P connections, Digi recommends "Negotiated GO" modes. The ConnectCore 6 fails to join autonomous groups.

    • The Atheros AR6233 firmware does not support the following configuration modes:

      • Concurrent modes involving P2P mode, such as P2P + softAP or P2P + STA.

      • Bluetooth + softAP + STA concurrent mode.

    • A maximum of five clients are supported when using Qualcomm’s AR6233 in softAP mode.

    • A maximum of ten connected devices are supported when using Atheros AR6233 Bluetooth Low Energy mode.

ConnectCore 6 SBC

  • The Micrel PHY KSZ9031 may take between five and six seconds to auto-negotiate with Gigabit switches.