Hi, I am working on an imx6UL .
I can communicate with a device over UART with the following command in the linux shell:
echo "abcd" > /dev/ttymxc6
I am using this UART for RS485 communication. The communication works well on the linux shell but when I use pymodbus, it creates a Serial that deactivates the"opost" flag to ttymxc6 for unknown reasons.
Without using pymodbus (and so pyserial):
root@user:~# stty -F /dev/ttymxc6
speed 9600 baud; line = 0;
-brkint -imaxbel
After using pymodbus:
root@user:~# stty -F /dev/ttymxc6
speed 9600 baud; line = 0;
min = 0; time = 0;
-brkint -icrnl -imaxbel
-opost -onlcr
-isig -icanon -iexten -echo -echoe -echok -echoctl -echoke
It is annoying because I have to add :
os.system("stty -F /dev/ttymxc6 opost")
In my code to make it work and this takes around 11ms which is pretty long for my application...
What does the opost flag do on IMX6UL ?
