I am trying to connect the ADA Fruit USB to TTY cable to a Mac with Mac OS X 10.11.3. I installed the driver and see /dev/tty.usbserial
but when I try screen /dev/tty.usbserial 115200
I get no output on the screen.
Any recommendations on how to wire the cable?
Update
I checked a tutorial to verify whether I had to configure anything on the host side. It looks like I have /dev/ttyAMA0
on ArchLinux, and ls -l /dev/ttyAMA0
returns
crw-rw---- 1 root uucp 204, 64 Feb 22 09:40 /dev/ttyAMA0
note: I switched the cables in the right order before doing this.
Update 2
I added
dtoverlay=pi3-disable-bt
dtoverlay=pi3-miniuart-bt
to /boot/config.txt
. When I power off the Raspberry Pi 3 and disconnect the tty USB cable, reconnect the USB cable and power on the RPI 3 I get a boot message and login prompt but whatever character I type do not get shown on the display.
I followed the guidelines on the ArchLinux wiki to set up a serial tty. I typed sudo systemctl status [email protected]
and get,
* [email protected] - Serial Getty on ttyAMA0
Loaded: loaded (/usr/lib/systemd/system/[email protected]; enabled; vendor preset: disabled)
Active: active (running) since Wed 2016-03-23 12:12:15 EDT; 5min ago
Docs: man:agetty(8)
man:systemd-getty-generator(8)
http://0pointer.de/blog/projects/serial-console.html
Main PID: 218 (agetty)
CGroup: /system.slice/system-serial\x2dgetty.slice/[email protected]
`-218 /sbin/agetty --keep-baud 115200 38400 9600 ttyAMA0 vt220
Mar 23 12:12:15 stereos-pi systemd[1]: Started Serial Getty on ttyAMA0.
Any pointers on what is happening or how I could debug this?
Update 3
I did the exact same with Raspbian and I get a good working connection.
Android Things OS
, it has some Rpi3-related setup instructions along with the official documentation regardingconfig.txt
parameters.