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
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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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.