i.MX ProcessorsのトピックRe: IMX6Q UART2 ENABLING PROBLEM

IMX6Q UART2 ENABLING PROBLEM

mustafabakircio — Wed, 22 Mar 2017 12:01:14 GMT

Hello ;

I ' m working on Wandboard Quad which has iMX6Q processor on it . I opened it 's UART2 features from it 's imx6q-wandboard.dts but I have some problem about it and my mind is confused if I did right or missed something while enabling the UART2 .

I can send data from the UART2_TX but even if I set up the both console and ttymxc1 (UART2) baudrates same , I recieve nonsense character 's .

And I enabled from im6q-wandboard.dts adding ;

&uart2 {

pinctrl-names = "default";

pinctrl-0 = <&pinctrl_uart2_1>;

status = "okay" ;

};

Did I missing something or did I do something wrong about it ?

Thanks for your help ...

Re: IMX6Q UART2 ENABLING PROBLEM

igorpadykov — Thu, 23 Mar 2017 00:06:10 GMT

Hi Mustafa

to quickly know possible reason one can printf register

IOMUXC_UART2_UART_RX_DATA_SELECT_INPUT, described in

sect.36.4.581 Select Input Register (IOMUXC_UART2_UART_RX_DATA_SELECT_INPUT)

i.MX6DQ Reference Manual

http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6DQRM.pdf

and check signal on pad with oscilloscope.

Best regards
igor
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