imx6q 3.14.52 serial

[joqin]

hello everybody:

     use kernel 3.14.52.my serial results:

    [   58.250641] imx-uart 21ec000.serial: Rx FIFO overrun

    [   59.241089] imx-uart 21ec000.serial: Rx FIFO overrun

    [   59.246135] imx-uart 21ec000.serial: Rx FIFO overrun

my hardware serial link to   imx6q ttl  -> rs232 ->  ttl mcu ,if hot plug serial,serial results rx fifo overrun when get data.

thanks for help

[igorpadykov]

Hi liang

for avoiding Rx FIFO overflow one can try to use uart flow control

(handshaking) signals

i.MX6: how to use RTS/CTS properly using UART (DTE/DCE) 

Best regards
igor
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[joqin]

hi igorpadykov,thanks for reply.my project not support ctsrts.but i think know to why imx6q serial software had affected for my hardware rs232.at rs232,my serial software not work.