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On the NXP i.MX RT1050 EVK, LPUART1 interface is available at UART level on J30 and J31 connectors. Remove jumpers from J30 and J31 connectors to access the pins. In order to connect the serial console to a PC, you must convert the UART interface either to an RS-232 interface or to a USB interface. This requires connecting an external device ("dongle") to the i.MXRT1050 EVK. There are various such devices available on the market. One specific device we have been using (among others) is the WaveShare FT232 USB UART board:
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i.MX RT1050RT10XX | i.MX RT1050 RT10XX Function | NXP i.MX RT1050 EVK EVKB Boad | NXP i.MX RT1060 EVKB Boad | WaveShare FT232 USB UART Board Connection | Notes |
GPIO_AD_B0_13 | lpuart1.RX | J30.2 | J45.2 | CON6.3 (TXD) | |
GPIO_AD_B0_12 | lpuart1.TX | J31.2 | J46.2 | CON6.4 (RXD) | |
GND | GND | J21.8 | J21.8 | CON6.2 (GND) |
To power the board up, check that the SW1 switch is set to the "2-3" position.
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