dev/serial0 # (from /etc/ppp/peers/provider)Ĭonnect chat -s -v -f /etc/chatscripts/chat-connect -T. Remotename 3gppp # (from /etc/ppp/peers/provider) Updetach # (from /etc/ppp/peers/provider) When I try sudo pon I get the following output that seems like UART is not communicating properly: Lrwxrwxrwx 1 root root 15 stdin -> /proc/self/fd/0ĮDIT: Sorry, forget to attach Any confirmation that UART is working? I have the same problem as Tom - the same setup was previously working well with the USB cable.
#Using minicom serial
Current PC configuration generally does not provides serial ports and prefer to use USB devices. We generally use minicom with a physical port where it connects to a serial device like a switch, router, PBX, etc.
#Using minicom install
sudo yum install minicom -y List tty Devices. I need to run a script that write to inifinity 'at' and read answer.
I send: atz and obtain OK at and obtain OK Ans so on. sudo minicom -b 115200 -D /dev/ttyS0 in this way minicom opens its console-gui and allow me to send data. Lrwxrwxrwx 1 root root 15 stderr -> /proc/self/fd/2 We can also install for rpm-based distributions like below. Im using minicom to test my connection on serial port. Lrwxrwxrwx 1 root root 7 Feb 17 10:25 serial1 -> ttyAMA0ĭrwxr-xr-x 3 root root 180 Feb 17 10:25 snd Lrwxrwxrwx 1 root root 5 Feb 17 10:25 serial0 -> ttyS0 By pressing C-A first and then 'z', a help screen comes up with a short summary of all commands. Note: In metacom, the Meta key is mapped to Esc by default, at least on macOS.
Within a few seconds, you should see data in your session.
Ls: cannot access '/dev/serial/by-id': No such file or $ ls /dev -lĬrw-rw-rw- 1 root root 1, 8 Feb 17 10:25 random Ĭrw-rw-r- 1 root netdev 10, 242 Feb 17 10:25 rfkill To pop-up a window with the function you want, press Control-A (from now on, we will use C-A to mean Control-A), and then the function key (a-z or A-Z). Install minicom ( brew install minicom) so you can emulate a terminal connected over serial. rial: ttyS0 at MMIO 0x0 (irq = 53, base_baud = 31250000) is a $ ls /dev/serial/by-id rial: ttyAMA0 at MMIO 0x3f201000 (irq = 81, base_baud = 0) is a PL011 rev2 Those are the output of the commands: $ dmesg | grep "tty" It looks similar to mine sixfab, I also checked and I have the same signal on pin 8 and X1-11 (refferenced to this schematic ) so the connection looks fine. Hi see you attached images, thanks for that.
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