Hi Dell, > Hi Guys, > > Brand new to this mailing list. > > I have a Dart-MX6 imx6 Module that has a number of uarts. I have one > of the uarts connected to an external micro controller that excepts > commands via a basic binary messaging protocol. In linux I can > communicate with it using standard linux /dev/ttymxcN device. > > In an effort to learn more about u-boot and how it works, I was > wondering if it was possible in u-boot shell to communicate with the > same uart device using the same messaging protocol.
Have I understood you correctly that you would like to send data to this device via u-boot shell (like echo "FOO" > /dev/ttySX) ? As fair as I can tell there are some commands which allow you to load/send data via uart (like i.e. loadb). However, I also assume that you would like to keep the "console" and have the possibility to send data from it to other uart? To do this you probably would need to: 1. Add new command - e.g. serialfoomagic 2. Setup this extra serial port (in DT for your board) for your iMX device. 3. Use this command to send data/commands -> e.g. serialfoomagic cmd1 > I see from the > source code there is code for serial.c and serial_mxc.c, but I'm not > an experienced u-boot developer to know if this is possible and how > one would approach it. > > any help/pointers would be greatly appreciated. > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > https://lists.denx.de/listinfo/u-boot Best regards, Lukasz Majewski -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
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