Hardware Rework Guide for IMXRT1050-EVKB and Murata M.2 Module

This section is a brief hardware rework guidance of the EdgeFast Bluetooth PAL on the NXP IMXRT1050-EVKB board and the Murata 1XK,1ZM and 2EL solution - direct M.2 connection to Embedded Artists’ EAR00385 (1XK) , EAR00364 (1ZM) or EAR00409 (2EL)M.2 modules. The hardware rework consists of three parts:

  • Murata uSDM

  • HCI UART rework

Hardware rework

  • Murata uSD-M.2 jumper settings

    • J12 = 1-2: WLAN-SDIO & BT-PCM = 1.8 V

    • J13 = 1-2: BT-UART & WLAN/BT-CTRL = 3.3 V

    • J1 = 2-3: 3.3 V from uSD connector

  • HCI UART interface rework

    Connect the TX/RX/RTS/CTS pins of the two boards as show in Table 1 using the jumper cables included in the Murata’s uSD-M.2 Adapter kit as shown in the following table.

    Pin name

    uSD-M.2 adapter pin

    i.MX RT1050-EVKB pin

    Pin name of RT1050-EVKB

    GPIO name of RT1050-EVKB

    BT_UART_TXD_HOST

    J9 (pin 1)

    J22 (pin 1)

    LPUART3_RXD

    GPIO_AD_B1_07

    BT_UART_RXD_HOST

    J9 (pin 2)

    J22 (pin 2)

    LPUART3_TXD

    GPIO_AD_B1_06

    BT_UART_RTS_HOST

    J8 (pin 3)

    J23 (pin 3)

    LPUART3_CTS

    GPIO_AD_B1_04

    BT_UART_CTS_HOST

    J8 (pin 4)

    J23 (pin 4)

    LPUART3_RTS

    GPIO_AD_B1_05

    GND

    J7 (pin 7)

    J25 (pin 7)

    GND

    GND

Parent topic:Hardware Rework Guide for IMXRT1050-EVKB and Murata M.2 Module