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Serial communication in iMX6ULL

Question asked by mathew_k_t on Feb 18, 2018
Latest reply on Feb 20, 2018 by mathew_k_t



I have configured UART2 as follows,


&uart2 {
    pinctrl-names = "default";
    pinctrl-0 = <&pinctrl_uart2>;
    status = "okay";    


pinctrl_uart2: uart2grp {
            fsl,pins = <
                MX6UL_PAD_UART2_TX_DATA__UART2_DCE_TX     0x1b0b1
                MX6UL_PAD_UART2_RX_DATA__UART2_DCE_RX     0x1b0b1

For testing, I tried loopback. But I'm not getting any response.

For loopback I have shorted 1&2 in J1703. I probed TX pin and found that data is transmitting.But nothing received in console.

Also, I tried UART1(default configuartion in imx6ull). For that I'm getting responses.

Could you mention the mistakes in above?